diff --git a/sandbox/MicroBenchmark/NKeyBench.cs b/sandbox/MicroBenchmark/NKeyBench.cs index 1ab0b8d20..e4dd1074f 100644 --- a/sandbox/MicroBenchmark/NKeyBench.cs +++ b/sandbox/MicroBenchmark/NKeyBench.cs @@ -1,5 +1,5 @@ using BenchmarkDotNet.Attributes; -using NATS.Client.Core; +using NATS.NKeys; namespace MicroBenchmark; @@ -17,8 +17,8 @@ public int NKeyCreate() var result = 0; for (var i = 0; i < Iter; i++) { - var nkey = NKeys.FromSeed("SUAAVWRZG6M5FA5VRRGWSCIHKTOJC7EWNIT4JV3FTOIPO4OBFR5WA7X5TE"); - result += nkey.PublicKey.Length; + using var kp = KeyPair.FromSeed("SUAAVWRZG6M5FA5VRRGWSCIHKTOJC7EWNIT4JV3FTOIPO4OBFR5WA7X5TE".AsSpan()); + result += kp.GetPublicKey().Length; } return result; diff --git a/sandbox/MicroBenchmark/Sha512Bench.cs b/sandbox/MicroBenchmark/Sha512Bench.cs deleted file mode 100644 index abbca4f94..000000000 --- a/sandbox/MicroBenchmark/Sha512Bench.cs +++ /dev/null @@ -1,39 +0,0 @@ -using BenchmarkDotNet.Attributes; -using NATS.Client.Core.NaCl; - -namespace MicroBenchmark; - -[ShortRunJob] -[MemoryDiagnoser] -[PlainExporter] -public class Sha512TBench -{ - private byte[] _data = default!; - - [Params(5000)] - public int Iter { get; set; } - - [Params(1024, 1024 * 25)] - public int DataSize { get; set; } - - [GlobalSetup] - public void Setup() - { - var random = new Random(4711); - _data = new byte[DataSize]; - random.NextBytes(_data); - } - - [Benchmark] - public int Sha512Hash() - { - var result = 0; - for (var i = 0; i < Iter; i++) - { - var hash = Sha512.Hash(_data, 0, _data.Length)!; - result += hash.Length; - } - - return result; - } -} diff --git a/src/NATS.Client.Core/Internal/UserCredentials.cs b/src/NATS.Client.Core/Internal/UserCredentials.cs index 67ff30234..059dc0a01 100644 --- a/src/NATS.Client.Core/Internal/UserCredentials.cs +++ b/src/NATS.Client.Core/Internal/UserCredentials.cs @@ -1,7 +1,6 @@ -using System.Security.Cryptography; using System.Text; using Microsoft.Extensions.Logging; -using NATS.Client.Core.NaCl; +using NATS.NKeys; namespace NATS.Client.Core.Internal; @@ -54,11 +53,11 @@ public UserCredentials(NatsAuthOpts authOpts) if (seed == null || nonce == null) return null; - using var kp = NKeys.FromSeed(seed); - var bytes = kp.Sign(Encoding.ASCII.GetBytes(nonce)); - var sig = CryptoBytes.ToBase64String(bytes); + using var kp = KeyPair.FromSeed(seed.AsSpan()); + var signature = new byte[64]; + kp.Sign(Encoding.ASCII.GetBytes(nonce), signature); - return sig; + return Convert.ToBase64String(signature); } internal async Task AuthenticateAsync(ClientOpts opts, ServerInfo? info, NatsUri uri, TimeSpan timeout, CancellationToken cancellationToken) @@ -99,7 +98,10 @@ internal async Task AuthenticateAsync(ClientOpts opts, ServerInfo? info, NatsUri if (!string.IsNullOrEmpty(authCred.Secret)) { seed = authCred.Secret; - opts.NKey = NKeys.PublicKeyFromSeed(seed); + using (var kp = KeyPair.FromSeed(seed.AsSpan())) + { + opts.NKey = kp.GetPublicKey(); + } } break; diff --git a/src/NATS.Client.Core/NATS.Client.Core.csproj b/src/NATS.Client.Core/NATS.Client.Core.csproj index 0e92c9c54..bf255302a 100644 --- a/src/NATS.Client.Core/NATS.Client.Core.csproj +++ b/src/NATS.Client.Core/NATS.Client.Core.csproj @@ -10,6 +10,7 @@ + all runtime; build; native; contentfiles; analyzers; buildtransitive diff --git a/src/NATS.Client.Core/NKeyPair.cs b/src/NATS.Client.Core/NKeyPair.cs deleted file mode 100644 index 886b7e80d..000000000 --- a/src/NATS.Client.Core/NKeyPair.cs +++ /dev/null @@ -1,500 +0,0 @@ -using System.Security.Cryptography; -using NATS.Client.Core.NaCl; - -namespace NATS.Client.Core; - -/// -/// Partial implementation of the NATS Ed25519 KeyPair. This is not complete, but provides enough -/// functionality to implement the client side NATS 2.0 security scheme. -/// -public class NKeyPair : IDisposable -{ - private byte[] _seed; - private byte[] _expandedPrivateKey; - private byte[] _key; - - private bool _disposedValue = false; // To detect redundant calls - - internal NKeyPair(byte[] userSeed) - { - if (userSeed == null) - throw new NatsException("seed cannot be null"); - - var len = userSeed.Length; - if (len != Ed25519.PrivateKeySeedSize) - throw new NatsException("invalid seed length"); - - _seed = new byte[len]; - Buffer.BlockCopy(userSeed, 0, _seed, 0, len); - Ed25519.KeyPairFromSeed(out _key, out _expandedPrivateKey, _seed); - } - - /// - /// Gets the public key of the keypair. - /// - public byte[] PublicKey - { - get { return _key; } - } - - /// - /// Gets the private key of the keypair. - /// - public byte[] PrivateKeySeed - { - get { return _seed; } - } - - /// - /// Wipes clean the internal private keys. - /// - public void Wipe() - { - NKeys.Wipe(ref _seed); - NKeys.Wipe(ref _expandedPrivateKey); - } - - /// - /// Signs data and returns a signature. - /// - /// - /// The signature. - public byte[] Sign(byte[] src) - { - var rv = Ed25519.Sign(src, _expandedPrivateKey); - CryptoBytes.Wipe(_expandedPrivateKey); - return rv; - } - - /// - /// Releases all resources used by the NKeyPair. - /// - public void Dispose() - { - Dispose(true); - GC.SuppressFinalize(this); - } - - /// - /// Releases the unmanaged resources used by the NKeyPair and optionally releases the managed resources. - /// - /// true to release both managed and unmanaged resources; false to release only unmanaged resources. - protected virtual void Dispose(bool disposing) - { - if (!_disposedValue) - { - if (disposing) - { - Wipe(); - } - - _disposedValue = true; - } - } -} - -/// -/// NKeys is a class provided to manipulate NKeys and generate NKeyPairs. -/// -public class NKeys -{ - // PrefixByteSeed is the version byte used for encoded NATS Seeds - private const byte PrefixByteSeed = 18 << 3; // Base32-encodes to 'S...' - - // PrefixBytePrivate is the version byte used for encoded NATS Private keys - private const byte PrefixBytePrivate = 15 << 3; // Base32-encodes to 'P...' - - // PrefixByteServer is the version byte used for encoded NATS Servers - private const byte PrefixByteServer = 13 << 3; // Base32-encodes to 'N...' - - // PrefixByteCluster is the version byte used for encoded NATS Clusters - private const byte PrefixByteCluster = 2 << 3; // Base32-encodes to 'C...' - - // PrefixByteOperator is the version byte used for encoded NATS Operators - private const byte PrefixByteOperator = 14 << 3; // Base32-encodes to 'O...' - - // PrefixByteAccount is the version byte used for encoded NATS Accounts - private const byte PrefixByteAccount = 0; // Base32-encodes to 'A...' - - // PrefixByteUser is the version byte used for encoded NATS Users - private const byte PrefixByteUser = 20 << 3; // Base32-encodes to 'U...' - - // PrefixByteUnknown is for unknown prefixes. - private const byte PrefixByteUknown = 23 << 3; // Base32-encodes to 'X...' - - /// - /// Decodes a base 32 encoded NKey into a nkey seed and verifies the checksum. - /// - /// Base 32 encoded NKey. - /// - public static byte[] Decode(string src) - { - var raw = Base32.Decode(src); - var crc = (ushort)(raw[raw.Length - 2] | raw[raw.Length - 1] << 8); - - // trim off the CRC16 - var len = raw.Length - 2; - var data = new byte[len]; - Buffer.BlockCopy(raw, 0, data, 0, len); - - if (crc != Crc16.Checksum(data)) - throw new NatsException("Invalid CRC"); - - return data; - } - - /// - /// Wipes a byte array. - /// - /// byte array to wipe - public static void Wipe(ref byte[] src) - { - CryptoBytes.Wipe(src); - } - - /// - /// Wipes a string. - /// - /// string to wipe - public static void Wipe(string src) - { - // best effort to wipe. - if (src != null && src.Length > 0) - src.Remove(0); - } - - /// - /// Creates an NKeyPair from a private seed String. - /// - /// - /// A NATS Ed25519 Keypair - public static NKeyPair FromSeed(string seed) - { - var userSeed = DecodeSeed(seed); - try - { - var kp = new NKeyPair(userSeed); - return kp; - } - finally - { - Wipe(ref userSeed); - } - } - - /// - /// Creates a private user seed String. - /// - /// A NATS Ed25519 User Seed - public static string CreateUserSeed() - { - return CreateSeed(PrefixByteUser); - } - - /// - /// Creates a private account seed String. - /// - /// A NATS Ed25519 Account Seed - public static string CreateAccountSeed() - { - return CreateSeed(PrefixByteAccount); - } - - /// - /// Creates a private operator seed String. - /// - /// A NATS Ed25519 Operator Seed - public static string CreateOperatorSeed() - { - return CreateSeed(PrefixByteOperator); - } - - /// - /// Returns a seed's public key. - /// - /// - /// A the public key corresponding to Seed - public static string PublicKeyFromSeed(string seed) - { - var s = NKeys.Decode(seed); - if ((s[0] & (31 << 3)) != PrefixByteSeed) - { - throw new NatsException("Not a seed"); - } - - // reconstruct prefix byte - var prefixByte = (byte)((s[0] & 7) << 5 | ((s[1] >> 3) & 31)); - var pubKey = Ed25519.PublicKeyFromSeed(DecodeSeed(s)); - return Encode(prefixByte, false, pubKey); - } - - internal static byte[] DecodeSeed(byte[] raw) - { - // Need to do the reverse here to get back to internal representation. - var b1 = (byte)(raw[0] & 248); // 248 = 11111000 - var b2 = (byte)((raw[0] & 7) << 5 | ((raw[1] & 248) >> 3)); // 7 = 00000111 - - try - { - if (b1 != PrefixByteSeed) - throw new NatsException("Invalid Seed."); - - if (!IsValidPublicPrefixByte(b2)) - throw new NatsException("Invalid Public Prefix Byte."); - - // Trim off the first two bytes - var data = new byte[raw.Length - 2]; - Buffer.BlockCopy(raw, 2, data, 0, data.Length); - return data; - } - catch (Exception) - { - throw; - } - finally - { - Wipe(ref raw); - } - } - - internal static byte[] DecodeSeed(string src) - { - return DecodeSeed(NKeys.Decode(src)); - } - - internal static string Encode(byte prefixbyte, bool seed, byte[] src) - { - if (!IsValidPublicPrefixByte(prefixbyte)) - throw new NatsException("Invalid prefix"); - - if (src.Length != 32) - throw new NatsException("Invalid seed size"); - - using var stream = new MemoryStream(); - - if (seed) - { - // In order to make this human printable for both bytes, we need to do a little - // bit manipulation to setup for base32 encoding which takes 5 bits at a time. - var b1 = (byte)(PrefixByteSeed | (prefixbyte >> 5)); - var b2 = (byte)((prefixbyte & 31) << 3); // 31 = 00011111 - - stream.WriteByte(b1); - stream.WriteByte(b2); - } - else - { - stream.WriteByte(prefixbyte); - } - - // write payload - stream.Write(src, 0, src.Length); - - // Calculate and write crc16 checksum - var checksum = BitConverter.GetBytes(Crc16.Checksum(stream.ToArray())); - stream.Write(checksum, 0, checksum.Length); - - return Base32.Encode(stream.ToArray()); - } - - private static bool IsValidPublicPrefixByte(byte prefixByte) - { - switch (prefixByte) - { - case PrefixByteServer: - case PrefixByteCluster: - case PrefixByteOperator: - case PrefixByteAccount: - case PrefixByteUser: - return true; - } - - return false; - } - - private static string CreateSeed(byte prefixbyte) - { - var rawSeed = new byte[32]; - - using (var rng = RandomNumberGenerator.Create()) - { - rng.GetBytes(rawSeed); - } - - return Encode(prefixbyte, true, rawSeed); - } -} - -internal static class Crc16 -{ - private static ushort[] crc16tab = new ushort[] - { - 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, - 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, - 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, - 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, - 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, - 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d, - 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, - 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc, - 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, - 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, - 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, - 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, - 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, - 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49, - 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, - 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78, - 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, - 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067, - 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, - 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, - 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, - 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, - 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, - 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634, - 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, - 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3, - 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, - 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, - 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, - 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, - 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, - 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0, - }; - - internal static ushort Checksum(byte[] data) - { - var crc = 0; - foreach (var b in data) - { - crc = ((crc << 8) & 0xffff) ^ crc16tab[(crc >> 8) ^ (ushort)b & 0x00FF]; - } - - return (ushort)crc; - } -} - -// Borrowed from: https://stackoverflow.com/a/7135008 -internal class Base32 -{ -#if NETSTANDARD2_0 - public static byte[] Decode(string input) => Decode(input.AsSpan()); -#endif - - public static byte[] Decode(ReadOnlySpan input) - { - if (input == null || input.Length == 0) - { - throw new ArgumentNullException(nameof(input)); - } - - // input = input.TrimEnd('='); //remove padding characters - var indexOf = input.IndexOf('='); - if (indexOf > 0) - input = input.Slice(0, indexOf); - - var byteCount = input.Length * 5 / 8; // this must be TRUNCATED - var returnArray = new byte[byteCount]; - - byte curByte = 0, bitsRemaining = 8; - int mask = 0, arrayIndex = 0; - - for (var index = 0; index < input.Length; index++) - { - var c = input[index]; - var cValue = CharToValue(c); - - if (bitsRemaining > 5) - { - mask = cValue << (bitsRemaining - 5); - curByte = (byte)(curByte | mask); - bitsRemaining -= 5; - } - else - { - mask = cValue >> (5 - bitsRemaining); - curByte = (byte)(curByte | mask); - returnArray[arrayIndex++] = curByte; - curByte = (byte)(cValue << (3 + bitsRemaining)); - bitsRemaining += 3; - } - } - - // if we didn't end with a full byte - if (arrayIndex != byteCount) - { - returnArray[arrayIndex] = curByte; - } - - return returnArray; - } - - public static string Encode(byte[] input) - { - if (input == null || input.Length == 0) - { - throw new ArgumentNullException("input"); - } - - var charCount = (int)Math.Ceiling(input.Length / 5d) * 8; - var returnArray = new char[charCount]; - - byte nextChar = 0, bitsRemaining = 5; - var arrayIndex = 0; - - foreach (var b in input) - { - nextChar = (byte)(nextChar | (b >> (8 - bitsRemaining))); - returnArray[arrayIndex++] = ValueToChar(nextChar); - - if (bitsRemaining < 4) - { - nextChar = (byte)((b >> (3 - bitsRemaining)) & 31); - returnArray[arrayIndex++] = ValueToChar(nextChar); - bitsRemaining += 5; - } - - bitsRemaining -= 3; - nextChar = (byte)((b << bitsRemaining) & 31); - } - - // if we didn't end with a full char - if (arrayIndex < charCount) - { - returnArray[arrayIndex++] = ValueToChar(nextChar); - - // NOTE: Base32 padding omitted - } - - return new string(returnArray, 0, arrayIndex); - } - - private static int CharToValue(char c) - { - var value = (int)c; - - // 65-90 == uppercase letters - if (value < 91 && value > 64) - return value - 65; - - // 50-55 == numbers 2-7 - if (value < 56 && value > 49) - return value - 24; - - // 97-122 == lowercase letters - if (value < 123 && value > 96) - return value - 97; - - throw new ArgumentException("Character is not a Base32 character.", "c"); - } - - private static char ValueToChar(byte b) - { - if (b < 26) - return (char)(b + 65); - if (b < 32) - return (char)(b + 24); - throw new ArgumentException("Byte is not a value Base32 value.", "b"); - } -} diff --git a/src/NATS.Client.Core/NaCl/CryptoBytes.cs b/src/NATS.Client.Core/NaCl/CryptoBytes.cs deleted file mode 100644 index ec731103a..000000000 --- a/src/NATS.Client.Core/NaCl/CryptoBytes.cs +++ /dev/null @@ -1,250 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - - -using System; -using System.Linq; -//using Numerics; -using System.Runtime.CompilerServices; - -namespace NATS.Client.Core.NaCl -{ - /// - /// Utility class for cryptography. - /// - internal static class CryptoBytes - { - /// - /// Comparison of two arrays. - /// - /// The runtime of this method does not depend on the contents of the arrays. Using constant time - /// prevents timing attacks that allow an attacker to learn if the arrays have a common prefix. - /// - /// It is important to use such a constant time comparison when verifying MACs. - /// - /// Byte array - /// Byte array - /// True if arrays are equal - public static bool ConstantTimeEquals(byte[] x, byte[] y) - { - // Contract.Requires(x != null && y != null); - if (x.Length != y.Length) - return false; - return InternalConstantTimeEquals(x, 0, y, 0, x.Length) != 0; - } - - /// - /// Comparison of two array segments. - /// - /// The runtime of this method does not depend on the contents of the arrays. Using constant time - /// prevents timing attacks that allow an attacker to learn if the arrays have a common prefix. - /// - /// It is important to use such a constant time comparison when verifying MACs. - /// - /// Byte array segment - /// Byte array segment - /// True if contents of x and y are equal - public static bool ConstantTimeEquals(ArraySegment x, ArraySegment y) - { - // Contract.Requires(x.Array != null && y.Array != null); - if (x.Array == null || y.Array == null) throw new ArgumentNullException(); - if (x.Count != y.Count) - return false; - return InternalConstantTimeEquals(x.Array, x.Offset, y.Array, y.Offset, x.Count) != 0; - } - - /// - /// Comparison of two byte sequences. - /// - /// The runtime of this method does not depend on the contents of the arrays. Using constant time - /// prevents timing attacks that allow an attacker to learn if the arrays have a common prefix. - /// - /// It is important to use such a constant time comparison when verifying MACs. - /// - /// Byte array - /// Offset of byte sequence in the x array - /// Byte array - /// Offset of byte sequence in the y array - /// Lengh of byte sequence - /// True if sequences are equal - public static bool ConstantTimeEquals(byte[] x, int xOffset, byte[] y, int yOffset, int length) - { - // Contract.Requires(x != null && y != null); - if (x == null || y == null) throw new ArgumentNullException(); - // Contract.Requires(xOffset >= 0 && yOffset >= 0 && length >= 0); - if (xOffset < 0 || yOffset < 0 || length < 0) throw new ArgumentException(); - // Contract.Requires(xOffset + length <= x.Length); - if (xOffset + length > x.Length) throw new ArgumentException(); - // Contract.Requires(yOffset + length <= y.Length); - if (yOffset + length > y.Length) throw new ArgumentException(); - - return InternalConstantTimeEquals(x, xOffset, y, yOffset, length) != 0; - } - - private static uint InternalConstantTimeEquals(byte[] x, int xOffset, byte[] y, int yOffset, int length) - { - int differentbits = 0; - for (int i = 0; i < length; i++) - differentbits |= x[xOffset + i] ^ y[yOffset + i]; - return (1 & (unchecked((uint)differentbits - 1) >> 8)); - } - - /// - /// Overwrites the contents of the array, wiping the previous content. - /// - /// Byte array - public static void Wipe(byte[] data) - { - // Contract.Requires(data != null); - if (data == null) throw new ArgumentNullException(); - InternalWipe(data, 0, data.Length); - } - - /// - /// Overwrites the contents of the array, wiping the previous content. - /// - /// Byte array - /// Index of byte sequence - /// Length of byte sequence - public static void Wipe(byte[] data, int offset, int length) - { - // Contract.Requires(data != null); - if (data == null) throw new ArgumentNullException(); - // Contract.Requires(offset >= 0 && length >= 0); - if (offset< 0 || length < 0) throw new ArgumentOutOfRangeException(); - // Contract.Requires(offset + length <= data.Length); - if (offset + length > data.Length) throw new ArgumentException(); - - InternalWipe(data, offset, length); - } - - /// - /// Overwrites the contents of the array segment, wiping the previous content. - /// - /// Byte array segment - public static void Wipe(ArraySegment data) - { - InternalWipe(data.Array, data.Offset, data.Count); - } - - // Secure wiping is hard - // * the GC can move around and copy memory - // Perhaps this can be avoided by using unmanaged memory or by fixing the position of the array in memory - // * Swap files and error dumps can contain secret information - // It seems possible to lock memory in RAM, no idea about error dumps - // * Compiler could optimize out the wiping if it knows that data won't be read back - // I hope this is enough, suppressing inlining - // but perhaps `RtlSecureZeroMemory` is needed - [MethodImpl(MethodImplOptions.NoInlining)] - internal static void InternalWipe(byte[] data, int offset, int count) - { - Array.Clear(data, offset, count); - } - - // shallow wipe of structs - [MethodImpl(MethodImplOptions.NoInlining)] - internal static void InternalWipe(ref T data) - where T : struct - { - data = default(T); - } - - /// - /// Constant-time conversion of the bytes array to an upper-case hex string. - /// Please see http://stackoverflow.com/a/14333437/445517 for the detailed explanation - /// - /// Byte array - /// Hex representation of byte array - public static string ToHexStringUpper(byte[] data) - { - if (data == null) - return null; - char[] c = new char[data.Length * 2]; - int b; - for (int i = 0; i < data.Length; i++) - { - b = data[i] >> 4; - c[i * 2] = (char)(55 + b + (((b - 10) >> 31) & -7)); - b = data[i] & 0xF; - c[i * 2 + 1] = (char)(55 + b + (((b - 10) >> 31) & -7)); - } - return new string(c); - } - - /// - /// Constant-time conversion of the bytes array to an lower-case hex string. - /// Please see http://stackoverflow.com/a/14333437/445517 for the detailed explanation. - /// - /// Byte array - /// Hex representation of byte array - public static string ToHexStringLower(byte[] data) - { - if (data == null) - return null; - char[] c = new char[data.Length * 2]; - int b; - for (int i = 0; i < data.Length; i++) - { - b = data[i] >> 4; - c[i * 2] = (char)(87 + b + (((b - 10) >> 31) & -39)); - b = data[i] & 0xF; - c[i * 2 + 1] = (char)(87 + b + (((b - 10) >> 31) & -39)); - } - return new string(c); - } - - /// - /// Converts the hex string to bytes. Case insensitive. - /// - /// Hex encoded byte sequence - /// Byte array - public static byte[] FromHexString(string hexString) - { - if (hexString == null) - return null; - if (hexString.Length % 2 != 0) - throw new FormatException("The hex string is invalid because it has an odd length"); - var result = new byte[hexString.Length / 2]; - for (int i = 0; i < result.Length; i++) - result[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16); - return result; - } - - /// - /// Encodes the bytes with the Base64 encoding. - /// More compact than hex, but it is case-sensitive and uses the special characters `+`, `/` and `=`. - /// - /// Byte array - /// Base 64 encoded data - public static string ToBase64String(byte[] data) - { - if (data == null) - return null; - return Convert.ToBase64String(data); - } - - /// - /// Decodes a Base64 encoded string back to bytes. - /// - /// Base 64 encoded data - /// Byte array - public static byte[] FromBase64String(string base64String) - { - if (base64String == null) - return null; - return Convert.FromBase64String(base64String); - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Ed25519.cs b/src/NATS.Client.Core/NaCl/Ed25519.cs deleted file mode 100644 index e3459c89a..000000000 --- a/src/NATS.Client.Core/NaCl/Ed25519.cs +++ /dev/null @@ -1,186 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; -using NATS.Client.Core.NaCl.Internal.Ed25519Ref10; - - -namespace NATS.Client.Core.NaCl -{ - internal static class Ed25519 - { - /// - /// Public Keys are 32 byte values. All possible values of this size a valid. - /// - public const int PublicKeySize = 32; - /// - /// Signatures are 64 byte values - /// - public const int SignatureSize = 64; - /// - /// Private key seeds are 32 byte arbitrary values. This is the form that should be generated and stored. - /// - public const int PrivateKeySeedSize = 32; - /// - /// A 64 byte expanded form of private key. This form is used internally to improve performance - /// - public const int ExpandedPrivateKeySize = 32 * 2; - - /// - /// Verify Ed25519 signature - /// - /// Signature bytes - /// Message - /// Public key - /// True if signature is valid, false if it's not - public static bool Verify(ArraySegment signature, ArraySegment message, ArraySegment publicKey) - { - // Contract.Requires(signature.Count == SignatureSize && publicKey.Count == PublicKeySize); - if (signature.Count != SignatureSize || publicKey.Count != PublicKeySize) throw new ArgumentException(); - - return Ed25519Operations.crypto_sign_verify(signature.Array, signature.Offset, message.Array, message.Offset, message.Count, publicKey.Array, publicKey.Offset); - } - - /// - /// Verify Ed25519 signature - /// - /// Signature bytes - /// Message - /// Public key - /// True if signature is valid, false if it's not - public static bool Verify(byte[] signature, byte[] message, byte[] publicKey) - { - // Contract.Requires(signature != null && message != null && publicKey != null); - if (signature == null || message == null || publicKey == null) throw new ArgumentException(); - // Contract.Requires(signature.Length == SignatureSize && publicKey.Length == PublicKeySize); - if (signature.Length != SignatureSize || publicKey.Length != PublicKeySize) throw new ArgumentException(); - - return Ed25519Operations.crypto_sign_verify(signature, 0, message, 0, message.Length, publicKey, 0); - } - - /// - /// Create new Ed25519 signature - /// - /// Buffer for signature - /// Message bytes - /// Expanded form of private key - public static void Sign(ArraySegment signature, ArraySegment message, ArraySegment expandedPrivateKey) - { - // Contract.Requires(signature.Array != null && message.Array != null && expandedPrivateKey.Array != null); - if (signature.Array == null || message.Array == null || expandedPrivateKey.Array == null) throw new ArgumentNullException(); - // Contract.Requires(expandedPrivateKey.Count == ExpandedPrivateKeySize); - if (expandedPrivateKey.Count != ExpandedPrivateKeySize) throw new ArgumentException(); - - Ed25519Operations.crypto_sign(signature.Array, signature.Offset, message.Array, message.Offset, message.Count, expandedPrivateKey.Array, expandedPrivateKey.Offset); - } - - /// - /// Create new Ed25519 signature - /// - /// Message bytes - /// Expanded form of private key - public static byte[] Sign(byte[] message, byte[] expandedPrivateKey) - { - // Contract.Requires(message != null && expandedPrivateKey != null); - if (message == null || expandedPrivateKey == null) throw new ArgumentNullException(); - // Contract.Requires(expandedPrivateKey.Length == ExpandedPrivateKeySize); - if (expandedPrivateKey.Length != ExpandedPrivateKeySize) throw new ArgumentException(); - - var signature = new byte[SignatureSize]; - Sign(new ArraySegment(signature), new ArraySegment(message), new ArraySegment(expandedPrivateKey)); - return signature; - } - - /// - /// Calculate public key from private key seed - /// - /// Private key seed value - /// - public static byte[] PublicKeyFromSeed(byte[] privateKeySeed) - { - // Contract.Requires(privateKeySeed != null); - if (privateKeySeed == null) throw new ArgumentNullException(); - // Contract.Requires(privateKeySeed.Length == PrivateKeySeedSize); - if (privateKeySeed.Length != PrivateKeySeedSize) throw new ArgumentException(); - - byte[] privateKey; - byte[] publicKey; - KeyPairFromSeed(out publicKey, out privateKey, privateKeySeed); - CryptoBytes.Wipe(privateKey); - return publicKey; - } - - /// - /// Calculate expanded form of private key from the key seed. - /// - /// Private key seed value - /// Expanded form of the private key - public static byte[] ExpandedPrivateKeyFromSeed(byte[] privateKeySeed) - { - // Contract.Requires(privateKeySeed != null); - if (privateKeySeed == null) throw new ArgumentNullException(); - // Contract.Requires(privateKeySeed.Length == PrivateKeySeedSize); - if (privateKeySeed.Length != PrivateKeySeedSize) throw new ArgumentException(); - - byte[] privateKey; - byte[] publicKey; - KeyPairFromSeed(out publicKey, out privateKey, privateKeySeed); - CryptoBytes.Wipe(publicKey); - return privateKey; - } - - /// - /// Calculate key pair from the key seed. - /// - /// Public key - /// Expanded form of the private key - /// Private key seed value - public static void KeyPairFromSeed(out byte[] publicKey, out byte[] expandedPrivateKey, byte[] privateKeySeed) - { - // Contract.Requires(privateKeySeed != null); - if (privateKeySeed == null) throw new ArgumentNullException(); - // Contract.Requires(privateKeySeed.Length == PrivateKeySeedSize); - if (privateKeySeed.Length != PrivateKeySeedSize) throw new ArgumentException(); - - var pk = new byte[PublicKeySize]; - var sk = new byte[ExpandedPrivateKeySize]; - - Ed25519Operations.crypto_sign_keypair(pk, 0, sk, 0, privateKeySeed, 0); - publicKey = pk; - expandedPrivateKey = sk; - } - - /// - /// Calculate key pair from the key seed. - /// - /// Public key - /// Expanded form of the private key - /// Private key seed value - public static void KeyPairFromSeed(ArraySegment publicKey, ArraySegment expandedPrivateKey, ArraySegment privateKeySeed) - { - // Contract.Requires(publicKey.Array != null && expandedPrivateKey.Array != null && privateKeySeed.Array != null); - if (publicKey.Array == null || expandedPrivateKey.Array == null || privateKeySeed.Array == null) throw new ArgumentNullException(); - // Contract.Requires(expandedPrivateKey.Count == ExpandedPrivateKeySize && privateKeySeed.Count == PrivateKeySeedSize); - if (expandedPrivateKey.Count != ExpandedPrivateKeySize || privateKeySeed.Count != PrivateKeySeedSize) throw new ArgumentException(); - // Contract.Requires(publicKey.Count == PublicKeySize); - if (publicKey.Count != PublicKeySize) throw new ArgumentException(); - - Ed25519Operations.crypto_sign_keypair( - publicKey.Array, publicKey.Offset, - expandedPrivateKey.Array, expandedPrivateKey.Offset, - privateKeySeed.Array, privateKeySeed.Offset); - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/FieldElement.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/FieldElement.cs deleted file mode 100644 index 58e94f787..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/FieldElement.cs +++ /dev/null @@ -1,41 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal struct FieldElement - { - internal int x0, x1, x2, x3, x4, x5, x6, x7, x8, x9; - - internal FieldElement(params int[] elements) - { - // Contract.Requires(elements.Length == 10); - if (elements.Length != 10) throw new ArgumentException(); - - x0 = elements[0]; - x1 = elements[1]; - x2 = elements[2]; - x3 = elements[3]; - x4 = elements[4]; - x5 = elements[5]; - x6 = elements[6]; - x7 = elements[7]; - x8 = elements[8]; - x9 = elements[9]; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/GroupElement.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/GroupElement.cs deleted file mode 100644 index 402a5bafd..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/GroupElement.cs +++ /dev/null @@ -1,78 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - /* - ge means group element. - - Here the group is the set of pairs (x,y) of field elements (see fe.h) - satisfying -x^2 + y^2 = 1 + d x^2y^2 - where d = -121665/121666. - - Representations: - ge_p2 (projective): (X:Y:Z) satisfying x=X/Z, y=Y/Z - ge_p3 (extended): (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT - ge_p1p1 (completed): ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T - ge_precomp (Duif): (y+x,y-x,2dxy) - */ - - internal struct GroupElementP2 - { - public FieldElement X; - public FieldElement Y; - public FieldElement Z; - } ; - - internal struct GroupElementP3 - { - public FieldElement X; - public FieldElement Y; - public FieldElement Z; - public FieldElement T; - } ; - - internal struct GroupElementP1P1 - { - public FieldElement X; - public FieldElement Y; - public FieldElement Z; - public FieldElement T; - } ; - - internal struct GroupElementPreComp - { - public FieldElement yplusx; - public FieldElement yminusx; - public FieldElement xy2d; - - public GroupElementPreComp(FieldElement yplusx, FieldElement yminusx, FieldElement xy2d) - { - this.yplusx = yplusx; - this.yminusx = yminusx; - this.xy2d = xy2d; - } - } ; - - internal struct GroupElementCached - { - public FieldElement YplusX; - public FieldElement YminusX; - public FieldElement Z; - public FieldElement T2d; - } ; -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/base.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/base.cs deleted file mode 100644 index 11a7f1733..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/base.cs +++ /dev/null @@ -1,1370 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class LookupTables - { - /* base[i][j] = (j+1)*256^i*B */ - //32*8 - internal static GroupElementPreComp[][] Base = new GroupElementPreComp[][] - { - new[]{ - new GroupElementPreComp( - new FieldElement( 25967493,-14356035,29566456,3660896,-12694345,4014787,27544626,-11754271,-6079156,2047605 ), - new FieldElement( -12545711,934262,-2722910,3049990,-727428,9406986,12720692,5043384,19500929,-15469378 ), - new FieldElement( -8738181,4489570,9688441,-14785194,10184609,-12363380,29287919,11864899,-24514362,-4438546 ) - ), - new GroupElementPreComp( - new FieldElement( -12815894,-12976347,-21581243,11784320,-25355658,-2750717,-11717903,-3814571,-358445,-10211303 ), - new FieldElement( -21703237,6903825,27185491,6451973,-29577724,-9554005,-15616551,11189268,-26829678,-5319081 ), - new FieldElement( 26966642,11152617,32442495,15396054,14353839,-12752335,-3128826,-9541118,-15472047,-4166697 ) - ), - new GroupElementPreComp( - new FieldElement( 15636291,-9688557,24204773,-7912398,616977,-16685262,27787600,-14772189,28944400,-1550024 ), - new FieldElement( 16568933,4717097,-11556148,-1102322,15682896,-11807043,16354577,-11775962,7689662,11199574 ), - new FieldElement( 30464156,-5976125,-11779434,-15670865,23220365,15915852,7512774,10017326,-17749093,-9920357 ) - ), - new GroupElementPreComp( - new FieldElement( -17036878,13921892,10945806,-6033431,27105052,-16084379,-28926210,15006023,3284568,-6276540 ), - new FieldElement( 23599295,-8306047,-11193664,-7687416,13236774,10506355,7464579,9656445,13059162,10374397 ), - new FieldElement( 7798556,16710257,3033922,2874086,28997861,2835604,32406664,-3839045,-641708,-101325 ) - ), - new GroupElementPreComp( - new FieldElement( 10861363,11473154,27284546,1981175,-30064349,12577861,32867885,14515107,-15438304,10819380 ), - new FieldElement( 4708026,6336745,20377586,9066809,-11272109,6594696,-25653668,12483688,-12668491,5581306 ), - new FieldElement( 19563160,16186464,-29386857,4097519,10237984,-4348115,28542350,13850243,-23678021,-15815942 ) - ), - new GroupElementPreComp( - new FieldElement( -15371964,-12862754,32573250,4720197,-26436522,5875511,-19188627,-15224819,-9818940,-12085777 ), - new FieldElement( -8549212,109983,15149363,2178705,22900618,4543417,3044240,-15689887,1762328,14866737 ), - new FieldElement( -18199695,-15951423,-10473290,1707278,-17185920,3916101,-28236412,3959421,27914454,4383652 ) - ), - new GroupElementPreComp( - new FieldElement( 5153746,9909285,1723747,-2777874,30523605,5516873,19480852,5230134,-23952439,-15175766 ), - new FieldElement( -30269007,-3463509,7665486,10083793,28475525,1649722,20654025,16520125,30598449,7715701 ), - new FieldElement( 28881845,14381568,9657904,3680757,-20181635,7843316,-31400660,1370708,29794553,-1409300 ) - ), - new GroupElementPreComp( - new FieldElement( 14499471,-2729599,-33191113,-4254652,28494862,14271267,30290735,10876454,-33154098,2381726 ), - new FieldElement( -7195431,-2655363,-14730155,462251,-27724326,3941372,-6236617,3696005,-32300832,15351955 ), - new FieldElement( 27431194,8222322,16448760,-3907995,-18707002,11938355,-32961401,-2970515,29551813,10109425 ) - ), - }, - new[]{ - new GroupElementPreComp( - new FieldElement( -13657040,-13155431,-31283750,11777098,21447386,6519384,-2378284,-1627556,10092783,-4764171 ), - new FieldElement( 27939166,14210322,4677035,16277044,-22964462,-12398139,-32508754,12005538,-17810127,12803510 ), - new FieldElement( 17228999,-15661624,-1233527,300140,-1224870,-11714777,30364213,-9038194,18016357,4397660 ) - ), - new GroupElementPreComp( - new FieldElement( -10958843,-7690207,4776341,-14954238,27850028,-15602212,-26619106,14544525,-17477504,982639 ), - new FieldElement( 29253598,15796703,-2863982,-9908884,10057023,3163536,7332899,-4120128,-21047696,9934963 ), - new FieldElement( 5793303,16271923,-24131614,-10116404,29188560,1206517,-14747930,4559895,-30123922,-10897950 ) - ), - new GroupElementPreComp( - new FieldElement( -27643952,-11493006,16282657,-11036493,28414021,-15012264,24191034,4541697,-13338309,5500568 ), - new FieldElement( 12650548,-1497113,9052871,11355358,-17680037,-8400164,-17430592,12264343,10874051,13524335 ), - new FieldElement( 25556948,-3045990,714651,2510400,23394682,-10415330,33119038,5080568,-22528059,5376628 ) - ), - new GroupElementPreComp( - new FieldElement( -26088264,-4011052,-17013699,-3537628,-6726793,1920897,-22321305,-9447443,4535768,1569007 ), - new FieldElement( -2255422,14606630,-21692440,-8039818,28430649,8775819,-30494562,3044290,31848280,12543772 ), - new FieldElement( -22028579,2943893,-31857513,6777306,13784462,-4292203,-27377195,-2062731,7718482,14474653 ) - ), - new GroupElementPreComp( - new FieldElement( 2385315,2454213,-22631320,46603,-4437935,-15680415,656965,-7236665,24316168,-5253567 ), - new FieldElement( 13741529,10911568,-33233417,-8603737,-20177830,-1033297,33040651,-13424532,-20729456,8321686 ), - new FieldElement( 21060490,-2212744,15712757,-4336099,1639040,10656336,23845965,-11874838,-9984458,608372 ) - ), - new GroupElementPreComp( - new FieldElement( -13672732,-15087586,-10889693,-7557059,-6036909,11305547,1123968,-6780577,27229399,23887 ), - new FieldElement( -23244140,-294205,-11744728,14712571,-29465699,-2029617,12797024,-6440308,-1633405,16678954 ), - new FieldElement( -29500620,4770662,-16054387,14001338,7830047,9564805,-1508144,-4795045,-17169265,4904953 ) - ), - new GroupElementPreComp( - new FieldElement( 24059557,14617003,19037157,-15039908,19766093,-14906429,5169211,16191880,2128236,-4326833 ), - new FieldElement( -16981152,4124966,-8540610,-10653797,30336522,-14105247,-29806336,916033,-6882542,-2986532 ), - new FieldElement( -22630907,12419372,-7134229,-7473371,-16478904,16739175,285431,2763829,15736322,4143876 ) - ), - new GroupElementPreComp( - new FieldElement( 2379352,11839345,-4110402,-5988665,11274298,794957,212801,-14594663,23527084,-16458268 ), - new FieldElement( 33431127,-11130478,-17838966,-15626900,8909499,8376530,-32625340,4087881,-15188911,-14416214 ), - new FieldElement( 1767683,7197987,-13205226,-2022635,-13091350,448826,5799055,4357868,-4774191,-16323038 ) - ), - }, - new[]{ - new GroupElementPreComp( - new FieldElement( 6721966,13833823,-23523388,-1551314,26354293,-11863321,23365147,-3949732,7390890,2759800 ), - 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new FieldElement( -13077387,1184228,23562814,-5970442,-20351244,-6348714,25764461,12243797,-20856566,11649658 ), - new FieldElement( -10031494,11262626,27384172,2271902,26947504,-15997771,39944,6114064,33514190,2333242 ) - ), - new GroupElementPreComp( - new FieldElement( -21433588,-12421821,8119782,7219913,-21830522,-9016134,-6679750,-12670638,24350578,-13450001 ), - new FieldElement( -4116307,-11271533,-23886186,4843615,-30088339,690623,-31536088,-10406836,8317860,12352766 ), - new FieldElement( 18200138,-14475911,-33087759,-2696619,-23702521,-9102511,-23552096,-2287550,20712163,6719373 ) - ), - new GroupElementPreComp( - new FieldElement( 26656208,6075253,-7858556,1886072,-28344043,4262326,11117530,-3763210,26224235,-3297458 ), - new FieldElement( -17168938,-14854097,-3395676,-16369877,-19954045,14050420,21728352,9493610,18620611,-16428628 ), - new FieldElement( -13323321,13325349,11432106,5964811,18609221,6062965,-5269471,-9725556,-30701573,-16479657 ) - ), - new GroupElementPreComp( - new FieldElement( -23860538,-11233159,26961357,1640861,-32413112,-16737940,12248509,-5240639,13735342,1934062 ), - new FieldElement( 25089769,6742589,17081145,-13406266,21909293,-16067981,-15136294,-3765346,-21277997,5473616 ), - new FieldElement( 31883677,-7961101,1083432,-11572403,22828471,13290673,-7125085,12469656,29111212,-5451014 ) - ), - new GroupElementPreComp( - new FieldElement( 24244947,-15050407,-26262976,2791540,-14997599,16666678,24367466,6388839,-10295587,452383 ), - new FieldElement( -25640782,-3417841,5217916,16224624,19987036,-4082269,-24236251,-5915248,15766062,8407814 ), - new FieldElement( -20406999,13990231,15495425,16395525,5377168,15166495,-8917023,-4388953,-8067909,2276718 ) - ), - new GroupElementPreComp( - new FieldElement( 30157918,12924066,-17712050,9245753,19895028,3368142,-23827587,5096219,22740376,-7303417 ), - new FieldElement( 2041139,-14256350,7783687,13876377,-25946985,-13352459,24051124,13742383,-15637599,13295222 ), - new FieldElement( 33338237,-8505733,12532113,7977527,9106186,-1715251,-17720195,-4612972,-4451357,-14669444 ) - ), - new GroupElementPreComp( - new FieldElement( -20045281,5454097,-14346548,6447146,28862071,1883651,-2469266,-4141880,7770569,9620597 ), - new FieldElement( 23208068,7979712,33071466,8149229,1758231,-10834995,30945528,-1694323,-33502340,-14767970 ), - new FieldElement( 1439958,-16270480,-1079989,-793782,4625402,10647766,-5043801,1220118,30494170,-11440799 ) - ), - new GroupElementPreComp( - new FieldElement( -5037580,-13028295,-2970559,-3061767,15640974,-6701666,-26739026,926050,-1684339,-13333647 ), - new FieldElement( 13908495,-3549272,30919928,-6273825,-21521863,7989039,9021034,9078865,3353509,4033511 ), - new FieldElement( -29663431,-15113610,32259991,-344482,24295849,-12912123,23161163,8839127,27485041,7356032 ) - ), - }, - new[]{ - new GroupElementPreComp( - new FieldElement( 9661027,705443,11980065,-5370154,-1628543,14661173,-6346142,2625015,28431036,-16771834 ), - new FieldElement( -23839233,-8311415,-25945511,7480958,-17681669,-8354183,-22545972,14150565,15970762,4099461 ), - new FieldElement( 29262576,16756590,26350592,-8793563,8529671,-11208050,13617293,-9937143,11465739,8317062 ) - ), - new GroupElementPreComp( - new FieldElement( -25493081,-6962928,32500200,-9419051,-23038724,-2302222,14898637,3848455,20969334,-5157516 ), - new FieldElement( -20384450,-14347713,-18336405,13884722,-33039454,2842114,-21610826,-3649888,11177095,14989547 ), - new FieldElement( -24496721,-11716016,16959896,2278463,12066309,10137771,13515641,2581286,-28487508,9930240 ) - ), - new GroupElementPreComp( - new FieldElement( -17751622,-2097826,16544300,-13009300,-15914807,-14949081,18345767,-13403753,16291481,-5314038 ), - new FieldElement( -33229194,2553288,32678213,9875984,8534129,6889387,-9676774,6957617,4368891,9788741 ), - new FieldElement( 16660756,7281060,-10830758,12911820,20108584,-8101676,-21722536,-8613148,16250552,-11111103 ) - ), - new GroupElementPreComp( - new FieldElement( -19765507,2390526,-16551031,14161980,1905286,6414907,4689584,10604807,-30190403,4782747 ), - new FieldElement( -1354539,14736941,-7367442,-13292886,7710542,-14155590,-9981571,4383045,22546403,437323 ), - new FieldElement( 31665577,-12180464,-16186830,1491339,-18368625,3294682,27343084,2786261,-30633590,-14097016 ) - ), - new GroupElementPreComp( - new FieldElement( -14467279,-683715,-33374107,7448552,19294360,14334329,-19690631,2355319,-19284671,-6114373 ), - new FieldElement( 15121312,-15796162,6377020,-6031361,-10798111,-12957845,18952177,15496498,-29380133,11754228 ), - new FieldElement( -2637277,-13483075,8488727,-14303896,12728761,-1622493,7141596,11724556,22761615,-10134141 ) - ), - new GroupElementPreComp( - new FieldElement( 16918416,11729663,-18083579,3022987,-31015732,-13339659,-28741185,-12227393,32851222,11717399 ), - new FieldElement( 11166634,7338049,-6722523,4531520,-29468672,-7302055,31474879,3483633,-1193175,-4030831 ), - new FieldElement( -185635,9921305,31456609,-13536438,-12013818,13348923,33142652,6546660,-19985279,-3948376 ) - ), - new GroupElementPreComp( - new FieldElement( -32460596,11266712,-11197107,-7899103,31703694,3855903,-8537131,-12833048,-30772034,-15486313 ), - new FieldElement( -18006477,12709068,3991746,-6479188,-21491523,-10550425,-31135347,-16049879,10928917,3011958 ), - new FieldElement( -6957757,-15594337,31696059,334240,29576716,14796075,-30831056,-12805180,18008031,10258577 ) - ), - new GroupElementPreComp( - new FieldElement( -22448644,15655569,7018479,-4410003,-30314266,-1201591,-1853465,1367120,25127874,6671743 ), - new FieldElement( 29701166,-14373934,-10878120,9279288,-17568,13127210,21382910,11042292,25838796,4642684 ), - new FieldElement( -20430234,14955537,-24126347,8124619,-5369288,-5990470,30468147,-13900640,18423289,4177476 ) - ) - } - }; - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/base2.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/base2.cs deleted file mode 100644 index 0d8a5bbe8..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/base2.cs +++ /dev/null @@ -1,65 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class LookupTables - { - internal static readonly GroupElementPreComp[] Base2 = new GroupElementPreComp[]{ - new GroupElementPreComp( - new FieldElement( 25967493,-14356035,29566456,3660896,-12694345,4014787,27544626,-11754271,-6079156,2047605 ), - new FieldElement( -12545711,934262,-2722910,3049990,-727428,9406986,12720692,5043384,19500929,-15469378 ), - new FieldElement( -8738181,4489570,9688441,-14785194,10184609,-12363380,29287919,11864899,-24514362,-4438546 ) - ), - new GroupElementPreComp( - new FieldElement( 15636291,-9688557,24204773,-7912398,616977,-16685262,27787600,-14772189,28944400,-1550024 ), - new FieldElement( 16568933,4717097,-11556148,-1102322,15682896,-11807043,16354577,-11775962,7689662,11199574 ), - new FieldElement( 30464156,-5976125,-11779434,-15670865,23220365,15915852,7512774,10017326,-17749093,-9920357 ) - ), - new GroupElementPreComp( - new FieldElement( 10861363,11473154,27284546,1981175,-30064349,12577861,32867885,14515107,-15438304,10819380 ), - new FieldElement( 4708026,6336745,20377586,9066809,-11272109,6594696,-25653668,12483688,-12668491,5581306 ), - new FieldElement( 19563160,16186464,-29386857,4097519,10237984,-4348115,28542350,13850243,-23678021,-15815942 ) - ), - new GroupElementPreComp( - new FieldElement( 5153746,9909285,1723747,-2777874,30523605,5516873,19480852,5230134,-23952439,-15175766 ), - new FieldElement( -30269007,-3463509,7665486,10083793,28475525,1649722,20654025,16520125,30598449,7715701 ), - new FieldElement( 28881845,14381568,9657904,3680757,-20181635,7843316,-31400660,1370708,29794553,-1409300 ) - ), - new GroupElementPreComp( - new FieldElement( -22518993,-6692182,14201702,-8745502,-23510406,8844726,18474211,-1361450,-13062696,13821877 ), - new FieldElement( -6455177,-7839871,3374702,-4740862,-27098617,-10571707,31655028,-7212327,18853322,-14220951 ), - new FieldElement( 4566830,-12963868,-28974889,-12240689,-7602672,-2830569,-8514358,-10431137,2207753,-3209784 ) - ), - new GroupElementPreComp( - new FieldElement( -25154831,-4185821,29681144,7868801,-6854661,-9423865,-12437364,-663000,-31111463,-16132436 ), - new FieldElement( 25576264,-2703214,7349804,-11814844,16472782,9300885,3844789,15725684,171356,6466918 ), - new FieldElement( 23103977,13316479,9739013,-16149481,817875,-15038942,8965339,-14088058,-30714912,16193877 ) - ), - new GroupElementPreComp( - new FieldElement( -33521811,3180713,-2394130,14003687,-16903474,-16270840,17238398,4729455,-18074513,9256800 ), - new FieldElement( -25182317,-4174131,32336398,5036987,-21236817,11360617,22616405,9761698,-19827198,630305 ), - new FieldElement( -13720693,2639453,-24237460,-7406481,9494427,-5774029,-6554551,-15960994,-2449256,-14291300 ) - ), - new GroupElementPreComp( - new FieldElement( -3151181,-5046075,9282714,6866145,-31907062,-863023,-18940575,15033784,25105118,-7894876 ), - new FieldElement( -24326370,15950226,-31801215,-14592823,-11662737,-5090925,1573892,-2625887,2198790,-15804619 ), - new FieldElement( -3099351,10324967,-2241613,7453183,-5446979,-2735503,-13812022,-16236442,-32461234,-12290683 ) - ) - }; - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/d.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/d.cs deleted file mode 100644 index 16659d881..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/d.cs +++ /dev/null @@ -1,22 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class LookupTables - { - internal static FieldElement d = new FieldElement(-10913610, 13857413, -15372611, 6949391, 114729, -8787816, -6275908, -3247719, -18696448, -12055116); - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/d2.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/d2.cs deleted file mode 100644 index 636d7448d..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/d2.cs +++ /dev/null @@ -1,24 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class LookupTables - { - internal static FieldElement d2 = new FieldElement(-21827239, -5839606, -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199); - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_0.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_0.cs deleted file mode 100644 index 1452c8209..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_0.cs +++ /dev/null @@ -1,27 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - public static void fe_0(out FieldElement h) - { - h = default(FieldElement); - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_1.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_1.cs deleted file mode 100644 index f5ef191cb..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_1.cs +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - public static void fe_1(out FieldElement h) - { - h = default(FieldElement); - h.x0 = 1; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_add.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_add.cs deleted file mode 100644 index d40f12b9d..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_add.cs +++ /dev/null @@ -1,79 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - /* - h = f + g - Can overlap h with f or g. - - Preconditions: - |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. - |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. - - Postconditions: - |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. - */ - //void fe_add(fe h,const fe f,const fe g) - internal static void fe_add(out FieldElement h, ref FieldElement f, ref FieldElement g) - { - int f0 = f.x0; - int f1 = f.x1; - int f2 = f.x2; - int f3 = f.x3; - int f4 = f.x4; - int f5 = f.x5; - int f6 = f.x6; - int f7 = f.x7; - int f8 = f.x8; - int f9 = f.x9; - int g0 = g.x0; - int g1 = g.x1; - int g2 = g.x2; - int g3 = g.x3; - int g4 = g.x4; - int g5 = g.x5; - int g6 = g.x6; - int g7 = g.x7; - int g8 = g.x8; - int g9 = g.x9; - int h0 = f0 + g0; - int h1 = f1 + g1; - int h2 = f2 + g2; - int h3 = f3 + g3; - int h4 = f4 + g4; - int h5 = f5 + g5; - int h6 = f6 + g6; - int h7 = f7 + g7; - int h8 = f8 + g8; - int h9 = f9 + g9; - - h.x0 = h0; - h.x1 = h1; - h.x2 = h2; - h.x3 = h3; - h.x4 = h4; - h.x5 = h5; - h.x6 = h6; - h.x7 = h7; - h.x8 = h8; - h.x9 = h9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_cmov.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_cmov.cs deleted file mode 100644 index 5056691e1..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_cmov.cs +++ /dev/null @@ -1,86 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - /* - Replace (f,g) with (g,g) if b == 1; - replace (f,g) with (f,g) if b == 0. - - Preconditions: b in {0,1}. - */ - - //void fe_cmov(fe f,const fe g,unsigned int b) - internal static void fe_cmov(ref FieldElement f, ref FieldElement g, int b) - { - int f0 = f.x0; - int f1 = f.x1; - int f2 = f.x2; - int f3 = f.x3; - int f4 = f.x4; - int f5 = f.x5; - int f6 = f.x6; - int f7 = f.x7; - int f8 = f.x8; - int f9 = f.x9; - int g0 = g.x0; - int g1 = g.x1; - int g2 = g.x2; - int g3 = g.x3; - int g4 = g.x4; - int g5 = g.x5; - int g6 = g.x6; - int g7 = g.x7; - int g8 = g.x8; - int g9 = g.x9; - int x0 = f0 ^ g0; - int x1 = f1 ^ g1; - int x2 = f2 ^ g2; - int x3 = f3 ^ g3; - int x4 = f4 ^ g4; - int x5 = f5 ^ g5; - int x6 = f6 ^ g6; - int x7 = f7 ^ g7; - int x8 = f8 ^ g8; - int x9 = f9 ^ g9; - - b = -b; - x0 &= b; - x1 &= b; - x2 &= b; - x3 &= b; - x4 &= b; - x5 &= b; - x6 &= b; - x7 &= b; - x8 &= b; - x9 &= b; - f.x0 = f0 ^ x0; - f.x1 = f1 ^ x1; - f.x2 = f2 ^ x2; - f.x3 = f3 ^ x3; - f.x4 = f4 ^ x4; - f.x5 = f5 ^ x5; - f.x6 = f6 ^ x6; - f.x7 = f7 ^ x7; - f.x8 = f8 ^ x8; - f.x9 = f9 ^ x9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_cswap.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_cswap.cs deleted file mode 100644 index 7dc636c88..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_cswap.cs +++ /dev/null @@ -1,94 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - /* - Replace (f,g) with (g,f) if b == 1; - replace (f,g) with (f,g) if b == 0. - - Preconditions: b in {0,1}. - */ - public static void fe_cswap(ref FieldElement f, ref FieldElement g, uint b) - { - int f0 = f.x0; - int f1 = f.x1; - int f2 = f.x2; - int f3 = f.x3; - int f4 = f.x4; - int f5 = f.x5; - int f6 = f.x6; - int f7 = f.x7; - int f8 = f.x8; - int f9 = f.x9; - int g0 = g.x0; - int g1 = g.x1; - int g2 = g.x2; - int g3 = g.x3; - int g4 = g.x4; - int g5 = g.x5; - int g6 = g.x6; - int g7 = g.x7; - int g8 = g.x8; - int g9 = g.x9; - int x0 = f0 ^ g0; - int x1 = f1 ^ g1; - int x2 = f2 ^ g2; - int x3 = f3 ^ g3; - int x4 = f4 ^ g4; - int x5 = f5 ^ g5; - int x6 = f6 ^ g6; - int x7 = f7 ^ g7; - int x8 = f8 ^ g8; - int x9 = f9 ^ g9; - - int negb = unchecked((int)-b); - x0 &= negb; - x1 &= negb; - x2 &= negb; - x3 &= negb; - x4 &= negb; - x5 &= negb; - x6 &= negb; - x7 &= negb; - x8 &= negb; - x9 &= negb; - f.x0 = f0 ^ x0; - f.x1 = f1 ^ x1; - f.x2 = f2 ^ x2; - f.x3 = f3 ^ x3; - f.x4 = f4 ^ x4; - f.x5 = f5 ^ x5; - f.x6 = f6 ^ x6; - f.x7 = f7 ^ x7; - f.x8 = f8 ^ x8; - f.x9 = f9 ^ x9; - g.x0 = g0 ^ x0; - g.x1 = g1 ^ x1; - g.x2 = g2 ^ x2; - g.x3 = g3 ^ x3; - g.x4 = g4 ^ x4; - g.x5 = g5 ^ x5; - g.x6 = g6 ^ x6; - g.x7 = g7 ^ x7; - g.x8 = g8 ^ x8; - g.x9 = g9 ^ x9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_frombytes.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_frombytes.cs deleted file mode 100644 index 85d532ae7..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_frombytes.cs +++ /dev/null @@ -1,117 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - private static long load_3(byte[] data, int offset) - { - uint result; - result = data[offset + 0]; - result |= (uint)data[offset + 1] << 8; - result |= (uint)data[offset + 2] << 16; - return (long)(ulong)result; - } - - private static long load_4(byte[] data, int offset) - { - uint result; - result = data[offset + 0]; - result |= (uint)data[offset + 1] << 8; - result |= (uint)data[offset + 2] << 16; - result |= (uint)data[offset + 3] << 24; - return (long)(ulong)result; - } - - // Ignores top bit of h. - internal static void fe_frombytes(out FieldElement h, byte[] data, int offset) - { - var h0 = load_4(data, offset); - var h1 = load_3(data, offset + 4) << 6; - var h2 = load_3(data, offset + 7) << 5; - var h3 = load_3(data, offset + 10) << 3; - var h4 = load_3(data, offset + 13) << 2; - var h5 = load_4(data, offset + 16); - var h6 = load_3(data, offset + 20) << 7; - var h7 = load_3(data, offset + 23) << 5; - var h8 = load_3(data, offset + 26) << 4; - var h9 = (load_3(data, offset + 29) & 8388607) << 2; - - var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; - var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25; - var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25; - var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25; - var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25; - - var carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26; - var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26; - var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26; - var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26; - var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26; - - h.x0 = (int)h0; - h.x1 = (int)h1; - h.x2 = (int)h2; - h.x3 = (int)h3; - h.x4 = (int)h4; - h.x5 = (int)h5; - h.x6 = (int)h6; - h.x7 = (int)h7; - h.x8 = (int)h8; - h.x9 = (int)h9; - } - - // does NOT ignore top bit - internal static void fe_frombytes2(out FieldElement h, byte[] data, int offset) - { - var h0 = load_4(data, offset); - var h1 = load_3(data, offset + 4) << 6; - var h2 = load_3(data, offset + 7) << 5; - var h3 = load_3(data, offset + 10) << 3; - var h4 = load_3(data, offset + 13) << 2; - var h5 = load_4(data, offset + 16); - var h6 = load_3(data, offset + 20) << 7; - var h7 = load_3(data, offset + 23) << 5; - var h8 = load_3(data, offset + 26) << 4; - var h9 = load_3(data, offset + 29) << 2; - - var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; - var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25; - var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25; - var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25; - var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25; - - var carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26; - var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26; - var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26; - var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26; - var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26; - - h.x0 = (int)h0; - h.x1 = (int)h1; - h.x2 = (int)h2; - h.x3 = (int)h3; - h.x4 = (int)h4; - h.x5 = (int)h5; - h.x6 = (int)h6; - h.x7 = (int)h7; - h.x8 = (int)h8; - h.x9 = (int)h9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_invert.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_invert.cs deleted file mode 100644 index 96e131969..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_invert.cs +++ /dev/null @@ -1,143 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - internal static void fe_invert(out FieldElement result, ref FieldElement z) - { - FieldElement t0, t1, t2, t3; - int i; - - /* qhasm: z2 = z1^2^1 */ - /* asm 1: fe_sq(>z2=fe#1,z2=fe#1,>z2=fe#1); */ - /* asm 2: fe_sq(>z2=t0,z2=t0,>z2=t0); */ - fe_sq(out t0, ref z); //for (i = 1; i < 1; ++i) fe_sq(out t0, ref t0); - - /* qhasm: z8 = z2^2^2 */ - /* asm 1: fe_sq(>z8=fe#2,z8=fe#2,>z8=fe#2); */ - /* asm 2: fe_sq(>z8=t1,z8=t1,>z8=t1); */ - fe_sq(out t1, ref t0); for (i = 1; i < 2; ++i) fe_sq(out t1, ref t1); - - /* qhasm: z9 = z1*z8 */ - /* asm 1: fe_mul(>z9=fe#2,z9=t1,z11=fe#1,z11=t0,z22=fe#3,z22=fe#3,>z22=fe#3); */ - /* asm 2: fe_sq(>z22=t2,z22=t2,>z22=t2); */ - fe_sq(out t2, ref t0); //for (i = 1; i < 1; ++i) fe_sq(out t2, ref t2); - - /* qhasm: z_5_0 = z9*z22 */ - /* asm 1: fe_mul(>z_5_0=fe#2,z_5_0=t1,z_10_5=fe#3,z_10_5=fe#3,>z_10_5=fe#3); */ - /* asm 2: fe_sq(>z_10_5=t2,z_10_5=t2,>z_10_5=t2); */ - fe_sq(out t2, ref t1); for (i = 1; i < 5; ++i) fe_sq(out t2, ref t2); - - /* qhasm: z_10_0 = z_10_5*z_5_0 */ - /* asm 1: fe_mul(>z_10_0=fe#2,z_10_0=t1,z_20_10=fe#3,z_20_10=fe#3,>z_20_10=fe#3); */ - /* asm 2: fe_sq(>z_20_10=t2,z_20_10=t2,>z_20_10=t2); */ - fe_sq(out t2, ref t1); for (i = 1; i < 10; ++i) fe_sq(out t2, ref t2); - - /* qhasm: z_20_0 = z_20_10*z_10_0 */ - /* asm 1: fe_mul(>z_20_0=fe#3,z_20_0=t2,z_40_20=fe#4,z_40_20=fe#4,>z_40_20=fe#4); */ - /* asm 2: fe_sq(>z_40_20=t3,z_40_20=t3,>z_40_20=t3); */ - fe_sq(out t3, ref t2); for (i = 1; i < 20; ++i) fe_sq(out t3, ref t3); - - /* qhasm: z_40_0 = z_40_20*z_20_0 */ - /* asm 1: fe_mul(>z_40_0=fe#3,z_40_0=t2,z_50_10=fe#3,z_50_10=fe#3,>z_50_10=fe#3); */ - /* asm 2: fe_sq(>z_50_10=t2,z_50_10=t2,>z_50_10=t2); */ - fe_sq(out t2, ref t2); for (i = 1; i < 10; ++i) fe_sq(out t2, ref t2); - - /* qhasm: z_50_0 = z_50_10*z_10_0 */ - /* asm 1: fe_mul(>z_50_0=fe#2,z_50_0=t1,z_100_50=fe#3,z_100_50=fe#3,>z_100_50=fe#3); */ - /* asm 2: fe_sq(>z_100_50=t2,z_100_50=t2,>z_100_50=t2); */ - fe_sq(out t2, ref t1); for (i = 1; i < 50; ++i) fe_sq(out t2, ref t2); - - /* qhasm: z_100_0 = z_100_50*z_50_0 */ - /* asm 1: fe_mul(>z_100_0=fe#3,z_100_0=t2,z_200_100=fe#4,z_200_100=fe#4,>z_200_100=fe#4); */ - /* asm 2: fe_sq(>z_200_100=t3,z_200_100=t3,>z_200_100=t3); */ - fe_sq(out t3, ref t2); for (i = 1; i < 100; ++i) fe_sq(out t3, ref t3); - - /* qhasm: z_200_0 = z_200_100*z_100_0 */ - /* asm 1: fe_mul(>z_200_0=fe#3,z_200_0=t2,z_250_50=fe#3,z_250_50=fe#3,>z_250_50=fe#3); */ - /* asm 2: fe_sq(>z_250_50=t2,z_250_50=t2,>z_250_50=t2); */ - fe_sq(out t2, ref t2); for (i = 1; i < 50; ++i) fe_sq(out t2, ref t2); - - /* qhasm: z_250_0 = z_250_50*z_50_0 */ - /* asm 1: fe_mul(>z_250_0=fe#2,z_250_0=t1,z_255_5=fe#2,z_255_5=fe#2,>z_255_5=fe#2); */ - /* asm 2: fe_sq(>z_255_5=t1,z_255_5=t1,>z_255_5=t1); */ - fe_sq(out t1, ref t1); for (i = 1; i < 5; ++i) fe_sq(out t1, ref t1); - - /* qhasm: z_255_21 = z_255_5*z11 */ - /* asm 1: fe_mul(>z_255_21=fe#12,z_255_21=out,> 31) ^ 1); - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_mul.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_mul.cs deleted file mode 100644 index 0aadd8288..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_mul.cs +++ /dev/null @@ -1,278 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - /* - h = f * g - Can overlap h with f or g. - - Preconditions: - |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc. - |g| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc. - - Postconditions: - |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc. - */ - - /* - Notes on implementation strategy: - - Using schoolbook multiplication. - Karatsuba would save a little in some cost models. - - Most multiplications by 2 and 19 are 32-bit precomputations; - cheaper than 64-bit postcomputations. - - There is one remaining multiplication by 19 in the carry chain; - one *19 precomputation can be merged into this, - but the resulting data flow is considerably less clean. - - There are 12 carries below. - 10 of them are 2-way parallelizable and vectorizable. - Can get away with 11 carries, but then data flow is much deeper. - - With tighter constraints on inputs can squeeze carries into int32. - */ - - internal static void fe_mul(out FieldElement h, ref FieldElement f, ref FieldElement g) - { - int f0 = f.x0; - int f1 = f.x1; - int f2 = f.x2; - int f3 = f.x3; - int f4 = f.x4; - int f5 = f.x5; - int f6 = f.x6; - int f7 = f.x7; - int f8 = f.x8; - int f9 = f.x9; - int g0 = g.x0; - int g1 = g.x1; - int g2 = g.x2; - int g3 = g.x3; - int g4 = g.x4; - int g5 = g.x5; - int g6 = g.x6; - int g7 = g.x7; - int g8 = g.x8; - int g9 = g.x9; - - int g1_19 = 19 * g1; /* 1.959375*2^29 */ - int g2_19 = 19 * g2; /* 1.959375*2^30; still ok */ - int g3_19 = 19 * g3; - int g4_19 = 19 * g4; - int g5_19 = 19 * g5; - int g6_19 = 19 * g6; - int g7_19 = 19 * g7; - int g8_19 = 19 * g8; - int g9_19 = 19 * g9; - - int f1_2 = 2 * f1; - int f3_2 = 2 * f3; - int f5_2 = 2 * f5; - int f7_2 = 2 * f7; - int f9_2 = 2 * f9; - - long f0g0 = f0 * (long)g0; - long f0g1 = f0 * (long)g1; - long f0g2 = f0 * (long)g2; - long f0g3 = f0 * (long)g3; - long f0g4 = f0 * (long)g4; - long f0g5 = f0 * (long)g5; - long f0g6 = f0 * (long)g6; - long f0g7 = f0 * (long)g7; - long f0g8 = f0 * (long)g8; - long f0g9 = f0 * (long)g9; - long f1g0 = f1 * (long)g0; - long f1g1_2 = f1_2 * (long)g1; - long f1g2 = f1 * (long)g2; - long f1g3_2 = f1_2 * (long)g3; - long f1g4 = f1 * (long)g4; - long f1g5_2 = f1_2 * (long)g5; - long f1g6 = f1 * (long)g6; - long f1g7_2 = f1_2 * (long)g7; - long f1g8 = f1 * (long)g8; - long f1g9_38 = f1_2 * (long)g9_19; - long f2g0 = f2 * (long)g0; - long f2g1 = f2 * (long)g1; - long f2g2 = f2 * (long)g2; - long f2g3 = f2 * (long)g3; - long f2g4 = f2 * (long)g4; - long f2g5 = f2 * (long)g5; - long f2g6 = f2 * (long)g6; - long f2g7 = f2 * (long)g7; - long f2g8_19 = f2 * (long)g8_19; - long f2g9_19 = f2 * (long)g9_19; - long f3g0 = f3 * (long)g0; - long f3g1_2 = f3_2 * (long)g1; - long f3g2 = f3 * (long)g2; - long f3g3_2 = f3_2 * (long)g3; - long f3g4 = f3 * (long)g4; - long f3g5_2 = f3_2 * (long)g5; - long f3g6 = f3 * (long)g6; - long f3g7_38 = f3_2 * (long)g7_19; - long f3g8_19 = f3 * (long)g8_19; - long f3g9_38 = f3_2 * (long)g9_19; - long f4g0 = f4 * (long)g0; - long f4g1 = f4 * (long)g1; - long f4g2 = f4 * (long)g2; - long f4g3 = f4 * (long)g3; - long f4g4 = f4 * (long)g4; - long f4g5 = f4 * (long)g5; - long f4g6_19 = f4 * (long)g6_19; - long f4g7_19 = f4 * (long)g7_19; - long f4g8_19 = f4 * (long)g8_19; - long f4g9_19 = f4 * (long)g9_19; - long f5g0 = f5 * (long)g0; - long f5g1_2 = f5_2 * (long)g1; - long f5g2 = f5 * (long)g2; - long f5g3_2 = f5_2 * (long)g3; - long f5g4 = f5 * (long)g4; - long f5g5_38 = f5_2 * (long)g5_19; - long f5g6_19 = f5 * (long)g6_19; - long f5g7_38 = f5_2 * (long)g7_19; - long f5g8_19 = f5 * (long)g8_19; - long f5g9_38 = f5_2 * (long)g9_19; - long f6g0 = f6 * (long)g0; - long f6g1 = f6 * (long)g1; - long f6g2 = f6 * (long)g2; - long f6g3 = f6 * (long)g3; - long f6g4_19 = f6 * (long)g4_19; - long f6g5_19 = f6 * (long)g5_19; - long f6g6_19 = f6 * (long)g6_19; - long f6g7_19 = f6 * (long)g7_19; - long f6g8_19 = f6 * (long)g8_19; - long f6g9_19 = f6 * (long)g9_19; - long f7g0 = f7 * (long)g0; - long f7g1_2 = f7_2 * (long)g1; - long f7g2 = f7 * (long)g2; - long f7g3_38 = f7_2 * (long)g3_19; - long f7g4_19 = f7 * (long)g4_19; - long f7g5_38 = f7_2 * (long)g5_19; - long f7g6_19 = f7 * (long)g6_19; - long f7g7_38 = f7_2 * (long)g7_19; - long f7g8_19 = f7 * (long)g8_19; - long f7g9_38 = f7_2 * (long)g9_19; - long f8g0 = f8 * (long)g0; - long f8g1 = f8 * (long)g1; - long f8g2_19 = f8 * (long)g2_19; - long f8g3_19 = f8 * (long)g3_19; - long f8g4_19 = f8 * (long)g4_19; - long f8g5_19 = f8 * (long)g5_19; - long f8g6_19 = f8 * (long)g6_19; - long f8g7_19 = f8 * (long)g7_19; - long f8g8_19 = f8 * (long)g8_19; - long f8g9_19 = f8 * (long)g9_19; - long f9g0 = f9 * (long)g0; - long f9g1_38 = f9_2 * (long)g1_19; - long f9g2_19 = f9 * (long)g2_19; - long f9g3_38 = f9_2 * (long)g3_19; - long f9g4_19 = f9 * (long)g4_19; - long f9g5_38 = f9_2 * (long)g5_19; - long f9g6_19 = f9 * (long)g6_19; - long f9g7_38 = f9_2 * (long)g7_19; - long f9g8_19 = f9 * (long)g8_19; - long f9g9_38 = f9_2 * (long)g9_19; - - long h0 = f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38; - long h1 = f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19; - long h2 = f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38; - long h3 = f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19; - long h4 = f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38; - long h5 = f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19; - long h6 = f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38; - long h7 = f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19; - long h8 = f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38; - long h9 = f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0; - - long carry0; - long carry1; - long carry2; - long carry3; - long carry4; - long carry5; - long carry6; - long carry7; - long carry8; - long carry9; - - /* - |h0| <= (1.65*1.65*2^52*(1+19+19+19+19)+1.65*1.65*2^50*(38+38+38+38+38)) - i.e. |h0| <= 1.4*2^60; narrower ranges for h2, h4, h6, h8 - |h1| <= (1.65*1.65*2^51*(1+1+19+19+19+19+19+19+19+19)) - i.e. |h1| <= 1.7*2^59; narrower ranges for h3, h5, h7, h9 - */ - - carry0 = (h0 + (long)(1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26; - carry4 = (h4 + (long)(1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26; - /* |h0| <= 2^25 */ - /* |h4| <= 2^25 */ - /* |h1| <= 1.71*2^59 */ - /* |h5| <= 1.71*2^59 */ - - carry1 = (h1 + (long)(1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25; - carry5 = (h5 + (long)(1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25; - /* |h1| <= 2^24; from now on fits into int32 */ - /* |h5| <= 2^24; from now on fits into int32 */ - /* |h2| <= 1.41*2^60 */ - /* |h6| <= 1.41*2^60 */ - - carry2 = (h2 + (long)(1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26; - carry6 = (h6 + (long)(1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26; - /* |h2| <= 2^25; from now on fits into int32 unchanged */ - /* |h6| <= 2^25; from now on fits into int32 unchanged */ - /* |h3| <= 1.71*2^59 */ - /* |h7| <= 1.71*2^59 */ - - carry3 = (h3 + (long)(1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25; - carry7 = (h7 + (long)(1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25; - /* |h3| <= 2^24; from now on fits into int32 unchanged */ - /* |h7| <= 2^24; from now on fits into int32 unchanged */ - /* |h4| <= 1.72*2^34 */ - /* |h8| <= 1.41*2^60 */ - - carry4 = (h4 + (long)(1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26; - carry8 = (h8 + (long)(1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26; - /* |h4| <= 2^25; from now on fits into int32 unchanged */ - /* |h8| <= 2^25; from now on fits into int32 unchanged */ - /* |h5| <= 1.01*2^24 */ - /* |h9| <= 1.71*2^59 */ - - carry9 = (h9 + (long)(1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; - /* |h9| <= 2^24; from now on fits into int32 unchanged */ - /* |h0| <= 1.1*2^39 */ - - carry0 = (h0 + (long)(1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26; - /* |h0| <= 2^25; from now on fits into int32 unchanged */ - /* |h1| <= 1.01*2^24 */ - - h.x0 = (int)h0; - h.x1 = (int)h1; - h.x2 = (int)h2; - h.x3 = (int)h3; - h.x4 = (int)h4; - h.x5 = (int)h5; - h.x6 = (int)h6; - h.x7 = (int)h7; - h.x8 = (int)h8; - h.x9 = (int)h9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_mul121666.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_mul121666.cs deleted file mode 100644 index 83f9c9bec..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_mul121666.cs +++ /dev/null @@ -1,82 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - - /* - h = f * 121666 - Can overlap h with f. - - Preconditions: - |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. - - Postconditions: - |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. - */ - - public static void fe_mul121666(out FieldElement h, ref FieldElement f) - { - int f0 = f.x0; - int f1 = f.x1; - int f2 = f.x2; - int f3 = f.x3; - int f4 = f.x4; - int f5 = f.x5; - int f6 = f.x6; - int f7 = f.x7; - int f8 = f.x8; - int f9 = f.x9; - - var h0 = f0 * 121666L; - var h1 = f1 * 121666L; - var h2 = f2 * 121666L; - var h3 = f3 * 121666L; - var h4 = f4 * 121666L; - var h5 = f5 * 121666L; - var h6 = f6 * 121666L; - var h7 = f7 * 121666L; - var h8 = f8 * 121666L; - var h9 = f9 * 121666L; - - var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; - var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25; - var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25; - var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25; - var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25; - - var carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26; - var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26; - var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26; - var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26; - var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26; - - h.x0 = (int)h0; - h.x1 = (int)h1; - h.x2 = (int)h2; - h.x3 = (int)h3; - h.x4 = (int)h4; - h.x5 = (int)h5; - h.x6 = (int)h6; - h.x7 = (int)h7; - h.x8 = (int)h8; - h.x9 = (int)h9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_neg.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_neg.cs deleted file mode 100644 index 0ef7fc5a6..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_neg.cs +++ /dev/null @@ -1,66 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - /* - h = -f - - Preconditions: - |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. - - Postconditions: - |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. - */ - internal static void fe_neg(out FieldElement h, ref FieldElement f) - { - int f0 = f.x0; - int f1 = f.x1; - int f2 = f.x2; - int f3 = f.x3; - int f4 = f.x4; - int f5 = f.x5; - int f6 = f.x6; - int f7 = f.x7; - int f8 = f.x8; - int f9 = f.x9; - int h0 = -f0; - int h1 = -f1; - int h2 = -f2; - int h3 = -f3; - int h4 = -f4; - int h5 = -f5; - int h6 = -f6; - int h7 = -f7; - int h8 = -f8; - int h9 = -f9; - - h.x0 = h0; - h.x1 = h1; - h.x2 = h2; - h.x3 = h3; - h.x4 = h4; - h.x5 = h5; - h.x6 = h6; - h.x7 = h7; - h.x8 = h8; - h.x9 = h9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_pow22523.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_pow22523.cs deleted file mode 100644 index 6b9eae854..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_pow22523.cs +++ /dev/null @@ -1,140 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - internal static void fe_pow22523(out FieldElement result, ref FieldElement z) - { - FieldElement t0, t1, t2; - int i; - - /* qhasm: z2 = z1^2^1 */ - /* asm 1: fe_sq(>z2=fe#1,z2=fe#1,>z2=fe#1); */ - /* asm 2: fe_sq(>z2=t0,z2=t0,>z2=t0); */ - fe_sq(out t0, ref z); //for (i = 1; i < 1; ++i) fe_sq(out t0, ref t0); - - /* qhasm: z8 = z2^2^2 */ - /* asm 1: fe_sq(>z8=fe#2,z8=fe#2,>z8=fe#2); */ - /* asm 2: fe_sq(>z8=t1,z8=t1,>z8=t1); */ - fe_sq(out t1, ref t0); for (i = 1; i < 2; ++i) fe_sq(out t1, ref t1); - - /* qhasm: z9 = z1*z8 */ - /* asm 1: fe_mul(>z9=fe#2,z9=t1,z11=fe#1,z11=t0,z22=fe#1,z22=fe#1,>z22=fe#1); */ - /* asm 2: fe_sq(>z22=t0,z22=t0,>z22=t0); */ - fe_sq(out t0, ref t0); //for (i = 1; i < 1; ++i) fe_sq(out t0, ref t0); - - /* qhasm: z_5_0 = z9*z22 */ - /* asm 1: fe_mul(>z_5_0=fe#1,z_5_0=t0,z_10_5=fe#2,z_10_5=fe#2,>z_10_5=fe#2); */ - /* asm 2: fe_sq(>z_10_5=t1,z_10_5=t1,>z_10_5=t1); */ - fe_sq(out t1, ref t0); for (i = 1; i < 5; ++i) fe_sq(out t1, ref t1); - - /* qhasm: z_10_0 = z_10_5*z_5_0 */ - /* asm 1: fe_mul(>z_10_0=fe#1,z_10_0=t0,z_20_10=fe#2,z_20_10=fe#2,>z_20_10=fe#2); */ - /* asm 2: fe_sq(>z_20_10=t1,z_20_10=t1,>z_20_10=t1); */ - fe_sq(out t1, ref t0); for (i = 1; i < 10; ++i) fe_sq(out t1, ref t1); - - /* qhasm: z_20_0 = z_20_10*z_10_0 */ - /* asm 1: fe_mul(>z_20_0=fe#2,z_20_0=t1,z_40_20=fe#3,z_40_20=fe#3,>z_40_20=fe#3); */ - /* asm 2: fe_sq(>z_40_20=t2,z_40_20=t2,>z_40_20=t2); */ - fe_sq(out t2, ref t1); for (i = 1; i < 20; ++i) fe_sq(out t2, ref t2); - - /* qhasm: z_40_0 = z_40_20*z_20_0 */ - /* asm 1: fe_mul(>z_40_0=fe#2,z_40_0=t1,z_50_10=fe#2,z_50_10=fe#2,>z_50_10=fe#2); */ - /* asm 2: fe_sq(>z_50_10=t1,z_50_10=t1,>z_50_10=t1); */ - fe_sq(out t1, ref t1); for (i = 1; i < 10; ++i) fe_sq(out t1, ref t1); - - /* qhasm: z_50_0 = z_50_10*z_10_0 */ - /* asm 1: fe_mul(>z_50_0=fe#1,z_50_0=t0,z_100_50=fe#2,z_100_50=fe#2,>z_100_50=fe#2); */ - /* asm 2: fe_sq(>z_100_50=t1,z_100_50=t1,>z_100_50=t1); */ - fe_sq(out t1, ref t0); for (i = 1; i < 50; ++i) fe_sq(out t1, ref t1); - - /* qhasm: z_100_0 = z_100_50*z_50_0 */ - /* asm 1: fe_mul(>z_100_0=fe#2,z_100_0=t1,z_200_100=fe#3,z_200_100=fe#3,>z_200_100=fe#3); */ - /* asm 2: fe_sq(>z_200_100=t2,z_200_100=t2,>z_200_100=t2); */ - fe_sq(out t2, ref t1); for (i = 1; i < 100; ++i) fe_sq(out t2, ref t2); - - /* qhasm: z_200_0 = z_200_100*z_100_0 */ - /* asm 1: fe_mul(>z_200_0=fe#2,z_200_0=t1,z_250_50=fe#2,z_250_50=fe#2,>z_250_50=fe#2); */ - /* asm 2: fe_sq(>z_250_50=t1,z_250_50=t1,>z_250_50=t1); */ - fe_sq(out t1, ref t1); for (i = 1; i < 50; ++i) fe_sq(out t1, ref t1); - - /* qhasm: z_250_0 = z_250_50*z_50_0 */ - /* asm 1: fe_mul(>z_250_0=fe#1,z_250_0=t0,z_252_2=fe#1,z_252_2=fe#1,>z_252_2=fe#1); */ - /* asm 2: fe_sq(>z_252_2=t0,z_252_2=t0,>z_252_2=t0); */ - fe_sq(out t0, ref t0); for (i = 1; i < 2; ++i) fe_sq(out t0, ref t0); - - /* qhasm: z_252_3 = z_252_2*z1 */ - /* asm 1: fe_mul(>z_252_3=fe#12,z_252_3=out,> 26; h1 += carry0; h0 -= carry0 << 26; - var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26; - var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25; - var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25; - var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26; - var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26; - var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25; - var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25; - - carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26; - - var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26; - var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; - - carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26; - - h.x0 = (int)h0; - h.x1 = (int)h1; - h.x2 = (int)h2; - h.x3 = (int)h3; - h.x4 = (int)h4; - h.x5 = (int)h5; - h.x6 = (int)h6; - h.x7 = (int)h7; - h.x8 = (int)h8; - h.x9 = (int)h9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_sq2.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_sq2.cs deleted file mode 100644 index afb0ded7a..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_sq2.cs +++ /dev/null @@ -1,169 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - /* -h = 2 * f * f -Can overlap h with f. - -Preconditions: - |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc. - -Postconditions: - |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc. -*/ - - /* - See fe_mul.c for discussion of implementation strategy. - */ - internal static void fe_sq2(out FieldElement h, ref FieldElement f) - { - int f0 = f.x0; - int f1 = f.x1; - int f2 = f.x2; - int f3 = f.x3; - int f4 = f.x4; - int f5 = f.x5; - int f6 = f.x6; - int f7 = f.x7; - int f8 = f.x8; - int f9 = f.x9; - - int f0_2 = 2 * f0; - int f1_2 = 2 * f1; - int f2_2 = 2 * f2; - int f3_2 = 2 * f3; - int f4_2 = 2 * f4; - int f5_2 = 2 * f5; - int f6_2 = 2 * f6; - int f7_2 = 2 * f7; - int f5_38 = 38 * f5; /* 1.959375*2^30 */ - int f6_19 = 19 * f6; /* 1.959375*2^30 */ - int f7_38 = 38 * f7; /* 1.959375*2^30 */ - int f8_19 = 19 * f8; /* 1.959375*2^30 */ - int f9_38 = 38 * f9; /* 1.959375*2^30 */ - - var f0f0 = f0 * (long)f0; - var f0f1_2 = f0_2 * (long)f1; - var f0f2_2 = f0_2 * (long)f2; - var f0f3_2 = f0_2 * (long)f3; - var f0f4_2 = f0_2 * (long)f4; - var f0f5_2 = f0_2 * (long)f5; - var f0f6_2 = f0_2 * (long)f6; - var f0f7_2 = f0_2 * (long)f7; - var f0f8_2 = f0_2 * (long)f8; - var f0f9_2 = f0_2 * (long)f9; - var f1f1_2 = f1_2 * (long)f1; - var f1f2_2 = f1_2 * (long)f2; - var f1f3_4 = f1_2 * (long)f3_2; - var f1f4_2 = f1_2 * (long)f4; - var f1f5_4 = f1_2 * (long)f5_2; - var f1f6_2 = f1_2 * (long)f6; - var f1f7_4 = f1_2 * (long)f7_2; - var f1f8_2 = f1_2 * (long)f8; - var f1f9_76 = f1_2 * (long)f9_38; - var f2f2 = f2 * (long)f2; - var f2f3_2 = f2_2 * (long)f3; - var f2f4_2 = f2_2 * (long)f4; - var f2f5_2 = f2_2 * (long)f5; - var f2f6_2 = f2_2 * (long)f6; - var f2f7_2 = f2_2 * (long)f7; - var f2f8_38 = f2_2 * (long)f8_19; - var f2f9_38 = f2 * (long)f9_38; - var f3f3_2 = f3_2 * (long)f3; - var f3f4_2 = f3_2 * (long)f4; - var f3f5_4 = f3_2 * (long)f5_2; - var f3f6_2 = f3_2 * (long)f6; - var f3f7_76 = f3_2 * (long)f7_38; - var f3f8_38 = f3_2 * (long)f8_19; - var f3f9_76 = f3_2 * (long)f9_38; - var f4f4 = f4 * (long)f4; - var f4f5_2 = f4_2 * (long)f5; - var f4f6_38 = f4_2 * (long)f6_19; - var f4f7_38 = f4 * (long)f7_38; - var f4f8_38 = f4_2 * (long)f8_19; - var f4f9_38 = f4 * (long)f9_38; - var f5f5_38 = f5 * (long)f5_38; - var f5f6_38 = f5_2 * (long)f6_19; - var f5f7_76 = f5_2 * (long)f7_38; - var f5f8_38 = f5_2 * (long)f8_19; - var f5f9_76 = f5_2 * (long)f9_38; - var f6f6_19 = f6 * (long)f6_19; - var f6f7_38 = f6 * (long)f7_38; - var f6f8_38 = f6_2 * (long)f8_19; - var f6f9_38 = f6 * (long)f9_38; - var f7f7_38 = f7 * (long)f7_38; - var f7f8_38 = f7_2 * (long)f8_19; - var f7f9_76 = f7_2 * (long)f9_38; - var f8f8_19 = f8 * (long)f8_19; - var f8f9_38 = f8 * (long)f9_38; - var f9f9_38 = f9 * (long)f9_38; - - var h0 = f0f0 + f1f9_76 + f2f8_38 + f3f7_76 + f4f6_38 + f5f5_38; - var h1 = f0f1_2 + f2f9_38 + f3f8_38 + f4f7_38 + f5f6_38; - var h2 = f0f2_2 + f1f1_2 + f3f9_76 + f4f8_38 + f5f7_76 + f6f6_19; - var h3 = f0f3_2 + f1f2_2 + f4f9_38 + f5f8_38 + f6f7_38; - var h4 = f0f4_2 + f1f3_4 + f2f2 + f5f9_76 + f6f8_38 + f7f7_38; - var h5 = f0f5_2 + f1f4_2 + f2f3_2 + f6f9_38 + f7f8_38; - var h6 = f0f6_2 + f1f5_4 + f2f4_2 + f3f3_2 + f7f9_76 + f8f8_19; - var h7 = f0f7_2 + f1f6_2 + f2f5_2 + f3f4_2 + f8f9_38; - var h8 = f0f8_2 + f1f7_4 + f2f6_2 + f3f5_4 + f4f4 + f9f9_38; - var h9 = f0f9_2 + f1f8_2 + f2f7_2 + f3f6_2 + f4f5_2; - - h0 += h0; - h1 += h1; - h2 += h2; - h3 += h3; - h4 += h4; - h5 += h5; - h6 += h6; - h7 += h7; - h8 += h8; - h9 += h9; - - var carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26; - var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26; - var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25; - var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25; - var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26; - var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26; - var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25; - var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25; - - carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26; - - var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26; - var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25; - - carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26; - - h.x0 = (int)h0; - h.x1 = (int)h1; - h.x2 = (int)h2; - h.x3 = (int)h3; - h.x4 = (int)h4; - h.x5 = (int)h5; - h.x6 = (int)h6; - h.x7 = (int)h7; - h.x8 = (int)h8; - h.x9 = (int)h9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_sub.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_sub.cs deleted file mode 100644 index 76d4d39ed..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_sub.cs +++ /dev/null @@ -1,81 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - /* - h = f - g - Can overlap h with f or g. - - Preconditions: - |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. - |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. - - Postconditions: - |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. - */ - - internal static void fe_sub(out FieldElement h, ref FieldElement f, ref FieldElement g) - { - int f0 = f.x0; - int f1 = f.x1; - int f2 = f.x2; - int f3 = f.x3; - int f4 = f.x4; - int f5 = f.x5; - int f6 = f.x6; - int f7 = f.x7; - int f8 = f.x8; - int f9 = f.x9; - - int g0 = g.x0; - int g1 = g.x1; - int g2 = g.x2; - int g3 = g.x3; - int g4 = g.x4; - int g5 = g.x5; - int g6 = g.x6; - int g7 = g.x7; - int g8 = g.x8; - int g9 = g.x9; - - int h0 = f0 - g0; - int h1 = f1 - g1; - int h2 = f2 - g2; - int h3 = f3 - g3; - int h4 = f4 - g4; - int h5 = f5 - g5; - int h6 = f6 - g6; - int h7 = f7 - g7; - int h8 = f8 - g8; - int h9 = f9 - g9; - - h.x0 = h0; - h.x1 = h1; - h.x2 = h2; - h.x3 = h3; - h.x4 = h4; - h.x5 = h5; - h.x6 = h6; - h.x7 = h7; - h.x8 = h8; - h.x9 = h9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_tobytes.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_tobytes.cs deleted file mode 100644 index 9d0982403..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/fe_tobytes.cs +++ /dev/null @@ -1,160 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class FieldOperations - { - /* - Preconditions: - |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. - - Write p=2^255-19; q=floor(h/p). - Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))). - - Proof: - Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4. - Also have |h-2^230 h9|<2^231 so |19 2^(-255)(h-2^230 h9)|<1/4. - - Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9). - Then 0> 0); - s[offset + 1] = (byte) (h0 >> 8); - s[offset + 2] = (byte) (h0 >> 16); - s[offset + 3] = (byte) ((h0 >> 24) | (h1 << 2)); - s[offset + 4] = (byte) (h1 >> 6); - s[offset + 5] = (byte) (h1 >> 14); - s[offset + 6] = (byte) ((h1 >> 22) | (h2 << 3)); - s[offset + 7] = (byte) (h2 >> 5); - s[offset + 8] = (byte) (h2 >> 13); - s[offset + 9] = (byte) ((h2 >> 21) | (h3 << 5)); - s[offset + 10] = (byte) (h3 >> 3); - s[offset + 11] = (byte) (h3 >> 11); - s[offset + 12] = (byte) ((h3 >> 19) | (h4 << 6)); - s[offset + 13] = (byte) (h4 >> 2); - s[offset + 14] = (byte) (h4 >> 10); - s[offset + 15] = (byte) (h4 >> 18); - s[offset + 16] = (byte) (h5 >> 0); - s[offset + 17] = (byte) (h5 >> 8); - s[offset + 18] = (byte) (h5 >> 16); - s[offset + 19] = (byte) ((h5 >> 24) | (h6 << 1)); - s[offset + 20] = (byte) (h6 >> 7); - s[offset + 21] = (byte) (h6 >> 15); - s[offset + 22] = (byte) ((h6 >> 23) | (h7 << 3)); - s[offset + 23] = (byte) (h7 >> 5); - s[offset + 24] = (byte) (h7 >> 13); - s[offset + 25] = (byte) ((h7 >> 21) | (h8 << 4)); - s[offset + 26] = (byte) (h8 >> 4); - s[offset + 27] = (byte) (h8 >> 12); - s[offset + 28] = (byte) ((h8 >> 20) | (h9 << 6)); - s[offset + 29] = (byte) (h9 >> 2); - s[offset + 30] = (byte) (h9 >> 10); - s[offset + 31] = (byte) (h9 >> 18); - } - } - - internal static void fe_reduce(out FieldElement hr, ref FieldElement h) - { - int h0 = h.x0; - int h1 = h.x1; - int h2 = h.x2; - int h3 = h.x3; - int h4 = h.x4; - int h5 = h.x5; - int h6 = h.x6; - int h7 = h.x7; - int h8 = h.x8; - int h9 = h.x9; - - int q; - - q = (19 * h9 + (1 << 24)) >> 25; - q = (h0 + q) >> 26; - q = (h1 + q) >> 25; - q = (h2 + q) >> 26; - q = (h3 + q) >> 25; - q = (h4 + q) >> 26; - q = (h5 + q) >> 25; - q = (h6 + q) >> 26; - q = (h7 + q) >> 25; - q = (h8 + q) >> 26; - q = (h9 + q) >> 25; - - /* Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20. */ - h0 += 19 * q; - /* Goal: Output h-2^255 q, which is between 0 and 2^255-20. */ - - var carry0 = h0 >> 26; h1 += carry0; h0 -= carry0 << 26; - var carry1 = h1 >> 25; h2 += carry1; h1 -= carry1 << 25; - var carry2 = h2 >> 26; h3 += carry2; h2 -= carry2 << 26; - var carry3 = h3 >> 25; h4 += carry3; h3 -= carry3 << 25; - var carry4 = h4 >> 26; h5 += carry4; h4 -= carry4 << 26; - var carry5 = h5 >> 25; h6 += carry5; h5 -= carry5 << 25; - var carry6 = h6 >> 26; h7 += carry6; h6 -= carry6 << 26; - var carry7 = h7 >> 25; h8 += carry7; h7 -= carry7 << 25; - var carry8 = h8 >> 26; h9 += carry8; h8 -= carry8 << 26; - var carry9 = h9 >> 25; h9 -= carry9 << 25; - /* h10 = carry9 */ - - hr.x0 = h0; - hr.x1 = h1; - hr.x2 = h2; - hr.x3 = h3; - hr.x4 = h4; - hr.x5 = h5; - hr.x6 = h6; - hr.x7 = h7; - hr.x8 = h8; - hr.x9 = h9; - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_add.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_add.cs deleted file mode 100644 index 106f7fa6d..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_add.cs +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class GroupOperations - { - /* - r = p + q - */ - - internal static void ge_add(out GroupElementP1P1 r, ref GroupElementP3 p, ref GroupElementCached q) - { - FieldElement t0; - - /* qhasm: YpX1 = Y1+X1 */ - /* asm 1: fe_add(>YpX1=fe#1,YpX1=r.X,YmX1=fe#2,YmX1=r.Y,A=fe#3,A=r.Z,B=fe#2,B=r.Y,C=fe#4,C=r.T,ZZ=fe#1,ZZ=r.X,D=fe#5,D=t0,X3=fe#1,X3=r.X,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,T3=fe#4,T3=r.T,> 3] >> (i & 7))); - - for (int i = 0; i < 256; ++i) - { - if (r[i] != 0) - { - for (int b = 1; b <= 6 && (i + b) < 256; ++b) - { - if (r[i + b] != 0) - { - if (r[i] + (r[i + b] << b) <= 15) - { - r[i] += (sbyte)(r[i + b] << b); r[i + b] = 0; - } - else if (r[i] - (r[i + b] << b) >= -15) - { - r[i] -= (sbyte)(r[i + b] << b); - for (int k = i + b; k < 256; ++k) - { - if (r[k] == 0) - { - r[k] = 1; - break; - } - r[k] = 0; - } - } - else - break; - } - } - } - } - } - - /* - r = a * A + b * B - where a = a[0]+256*a[1]+...+256^31 a[31]. - and b = b[0]+256*b[1]+...+256^31 b[31]. - B is the Ed25519 base point (x,4/5) with x positive. - */ - - public static void ge_double_scalarmult_vartime(out GroupElementP2 r, byte[] a, ref GroupElementP3 A, byte[] b) - { - GroupElementPreComp[] Bi = LookupTables.Base2; - // todo: Perhaps remove these allocations? - sbyte[] aslide = new sbyte[256]; - sbyte[] bslide = new sbyte[256]; - GroupElementCached[] Ai = new GroupElementCached[8]; /* A,3A,5A,7A,9A,11A,13A,15A */ - GroupElementP1P1 t; - GroupElementP3 u; - GroupElementP3 A2; - int i; - - slide(aslide, a); - slide(bslide, b); - - ge_p3_to_cached(out Ai[0], ref A); - ge_p3_dbl(out t, ref A); ge_p1p1_to_p3(out A2, ref t); - ge_add(out t, ref A2, ref Ai[0]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[1], ref u); - ge_add(out t, ref A2, ref Ai[1]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[2], ref u); - ge_add(out t, ref A2, ref Ai[2]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[3], ref u); - ge_add(out t, ref A2, ref Ai[3]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[4], ref u); - ge_add(out t, ref A2, ref Ai[4]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[5], ref u); - ge_add(out t, ref A2, ref Ai[5]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[6], ref u); - ge_add(out t, ref A2, ref Ai[6]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[7], ref u); - - ge_p2_0(out r); - - for (i = 255; i >= 0; --i) - { - if ((aslide[i] != 0) || (bslide[i] != 0)) break; - } - - for (; i >= 0; --i) - { - ge_p2_dbl(out t, ref r); - - if (aslide[i] > 0) - { - ge_p1p1_to_p3(out u, ref t); - ge_add(out t, ref u, ref Ai[aslide[i] / 2]); - } - else if (aslide[i] < 0) - { - ge_p1p1_to_p3(out u, ref t); - ge_sub(out t, ref u, ref Ai[(-aslide[i]) / 2]); - } - - if (bslide[i] > 0) - { - ge_p1p1_to_p3(out u, ref t); - ge_madd(out t, ref u, ref Bi[bslide[i] / 2]); - } - else if (bslide[i] < 0) - { - ge_p1p1_to_p3(out u, ref t); - ge_msub(out t, ref u, ref Bi[(-bslide[i]) / 2]); - } - - ge_p1p1_to_p2(out r, ref t); - } - } - - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_frombytes.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_frombytes.cs deleted file mode 100644 index 17ec876fd..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_frombytes.cs +++ /dev/null @@ -1,65 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class GroupOperations - { - public static int ge_frombytes_negate_vartime(out GroupElementP3 h, byte[] data, int offset) - { - FieldElement u, v, v3, vxx, check; - - FieldOperations.fe_frombytes(out h.Y, data, offset); - FieldOperations.fe_1(out h.Z); - FieldOperations.fe_sq(out u, ref h.Y); - FieldOperations.fe_mul(out v, ref u, ref LookupTables.d); - FieldOperations.fe_sub(out u, ref u, ref h.Z); /* u = y^2-1 */ - FieldOperations.fe_add(out v, ref v, ref h.Z); /* v = dy^2+1 */ - - FieldOperations.fe_sq(out v3, ref v); - FieldOperations.fe_mul(out v3, ref v3, ref v); /* v3 = v^3 */ - FieldOperations.fe_sq(out h.X, ref v3); - FieldOperations.fe_mul(out h.X, ref h.X, ref v); - FieldOperations.fe_mul(out h.X, ref h.X, ref u); /* x = uv^7 */ - - FieldOperations.fe_pow22523(out h.X, ref h.X); /* x = (uv^7)^((q-5)/8) */ - FieldOperations.fe_mul(out h.X, ref h.X, ref v3); - FieldOperations.fe_mul(out h.X, ref h.X, ref u); /* x = uv^3(uv^7)^((q-5)/8) */ - - FieldOperations.fe_sq(out vxx, ref h.X); - FieldOperations.fe_mul(out vxx, ref vxx, ref v); - FieldOperations.fe_sub(out check, ref vxx, ref u); /* vx^2-u */ - if (FieldOperations.fe_isnonzero(ref check) != 0) - { - FieldOperations.fe_add(out check, ref vxx, ref u); /* vx^2+u */ - if (FieldOperations.fe_isnonzero(ref check) != 0) - { - h = default(GroupElementP3); - return -1; - } - FieldOperations.fe_mul(out h.X, ref h.X, ref LookupTables.sqrtm1); - } - - if (FieldOperations.fe_isnegative(ref h.X) == (data[offset + 31] >> 7)) - FieldOperations.fe_neg(out h.X, ref h.X); - - FieldOperations.fe_mul(out h.T, ref h.X, ref h.Y); - return 0; - } - - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_madd.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_madd.cs deleted file mode 100644 index b9dcc2421..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_madd.cs +++ /dev/null @@ -1,84 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class GroupOperations - { - /* - r = p + q - */ - public static void ge_madd(out GroupElementP1P1 r, ref GroupElementP3 p, ref GroupElementPreComp q) - { - FieldElement t0; - - /* qhasm: YpX1 = Y1+X1 */ - /* asm 1: fe_add(>YpX1=fe#1,YpX1=r.X,YmX1=fe#2,YmX1=r.Y,A=fe#3,A=r.Z,B=fe#2,B=r.Y,C=fe#4,C=r.T,D=fe#5,D=t0,X3=fe#1,X3=r.X,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,T3=fe#4,T3=r.T,YpX1=fe#1,YpX1=r.X,YmX1=fe#2,YmX1=r.Y,A=fe#3,A=r.Z,B=fe#2,B=r.Y,C=fe#4,C=r.T,D=fe#5,D=t0,X3=fe#1,X3=r.X,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,T3=fe#4,T3=r.T,XX=fe#1,XX=r.X,YY=fe#3,YY=r.Z,B=fe#4,B=r.T,A=fe#2,A=r.Y,AA=fe#5,AA=t0,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,X3=fe#1,X3=r.X,T3=fe#4,T3=r.T,>= 31; /* 1: yes; 0: no */ - return (byte)y; - } - - static byte negative(sbyte b) - { - var x = unchecked((ulong)b); /* 18446744073709551361..18446744073709551615: yes; 0..255: no */ - x >>= 63; /* 1: yes; 0: no */ - return (byte)x; - } - - static void cmov(ref GroupElementPreComp t, ref GroupElementPreComp u, byte b) - { - FieldOperations.fe_cmov(ref t.yplusx, ref u.yplusx, b); - FieldOperations.fe_cmov(ref t.yminusx, ref u.yminusx, b); - FieldOperations.fe_cmov(ref t.xy2d, ref u.xy2d, b); - } - - static void select(out GroupElementPreComp t, int pos, sbyte b) - { - GroupElementPreComp minust; - var bnegative = negative(b); - var babs = (byte)(b - (((-bnegative) & b) << 1)); - - ge_precomp_0(out t); - var table = LookupTables.Base[pos]; - cmov(ref t, ref table[0], equal(babs, 1)); - cmov(ref t, ref table[1], equal(babs, 2)); - cmov(ref t, ref table[2], equal(babs, 3)); - cmov(ref t, ref table[3], equal(babs, 4)); - cmov(ref t, ref table[4], equal(babs, 5)); - cmov(ref t, ref table[5], equal(babs, 6)); - cmov(ref t, ref table[6], equal(babs, 7)); - cmov(ref t, ref table[7], equal(babs, 8)); - minust.yplusx = t.yminusx; - minust.yminusx = t.yplusx; - FieldOperations.fe_neg(out minust.xy2d, ref t.xy2d); - cmov(ref t, ref minust, bnegative); - } - - /* - h = a * B - where a = a[0]+256*a[1]+...+256^31 a[31] - B is the Ed25519 base point (x,4/5) with x positive. - - Preconditions: - a[31] <= 127 - */ - - public static void ge_scalarmult_base(out GroupElementP3 h, byte[] a, int offset) - { - // todo: Perhaps remove this allocation - var e = new sbyte[64]; - sbyte carry; - - GroupElementP1P1 r; - GroupElementP2 s; - GroupElementPreComp t; - - for (int i = 0; i < 32; ++i) - { - e[2 * i + 0] = (sbyte)((a[offset + i] >> 0) & 15); - e[2 * i + 1] = (sbyte)((a[offset + i] >> 4) & 15); - } - /* each e[i] is between 0 and 15 */ - /* e[63] is between 0 and 7 */ - - carry = 0; - for (int i = 0; i < 63; ++i) - { - e[i] += carry; - carry = (sbyte)(e[i] + 8); - carry >>= 4; - e[i] -= (sbyte)(carry << 4); - } - e[63] += carry; - /* each e[i] is between -8 and 8 */ - - ge_p3_0(out h); - for (int i = 1; i < 64; i += 2) - { - select(out t, i / 2, e[i]); - ge_madd(out r, ref h, ref t); ge_p1p1_to_p3(out h, ref r); - } - - ge_p3_dbl(out r, ref h); ge_p1p1_to_p2(out s, ref r); - ge_p2_dbl(out r, ref s); ge_p1p1_to_p2(out s, ref r); - ge_p2_dbl(out r, ref s); ge_p1p1_to_p2(out s, ref r); - ge_p2_dbl(out r, ref s); ge_p1p1_to_p3(out h, ref r); - - for (int i = 0; i < 64; i += 2) - { - select(out t, i / 2, e[i]); - ge_madd(out r, ref h, ref t); ge_p1p1_to_p3(out h, ref r); - } - } - - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_sub.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_sub.cs deleted file mode 100644 index 9ea943414..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/ge_sub.cs +++ /dev/null @@ -1,89 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class GroupOperations - { - /* - r = p - q - */ - - public static void ge_sub(out GroupElementP1P1 r, ref GroupElementP3 p, ref GroupElementCached q) - { - FieldElement t0; - - /* qhasm: YpX1 = Y1+X1 */ - /* asm 1: fe_add(>YpX1=fe#1,YpX1=r.X,YmX1=fe#2,YmX1=r.Y,A=fe#3,A=r.Z,B=fe#2,B=r.Y,C=fe#4,C=r.T,ZZ=fe#1,ZZ=r.X,D=fe#5,D=t0,X3=fe#1,X3=r.X,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,T3=fe#4,T3=r.T,> 5); - long a2 = 2097151 & (load_3(a, 5) >> 2); - long a3 = 2097151 & (load_4(a, 7) >> 7); - long a4 = 2097151 & (load_4(a, 10) >> 4); - long a5 = 2097151 & (load_3(a, 13) >> 1); - long a6 = 2097151 & (load_4(a, 15) >> 6); - long a7 = 2097151 & (load_3(a, 18) >> 3); - long a8 = 2097151 & load_3(a, 21); - long a9 = 2097151 & (load_4(a, 23) >> 5); - long a10 = 2097151 & (load_3(a, 26) >> 2); - long a11 = (load_4(a, 28) >> 7); - long b0 = 2097151 & load_3(b, 0); - long b1 = 2097151 & (load_4(b, 2) >> 5); - long b2 = 2097151 & (load_3(b, 5) >> 2); - long b3 = 2097151 & (load_4(b, 7) >> 7); - long b4 = 2097151 & (load_4(b, 10) >> 4); - long b5 = 2097151 & (load_3(b, 13) >> 1); - long b6 = 2097151 & (load_4(b, 15) >> 6); - long b7 = 2097151 & (load_3(b, 18) >> 3); - long b8 = 2097151 & load_3(b, 21); - long b9 = 2097151 & (load_4(b, 23) >> 5); - long b10 = 2097151 & (load_3(b, 26) >> 2); - long b11 = (load_4(b, 28) >> 7); - long c0 = 2097151 & load_3(c, 0); - long c1 = 2097151 & (load_4(c, 2) >> 5); - long c2 = 2097151 & (load_3(c, 5) >> 2); - long c3 = 2097151 & (load_4(c, 7) >> 7); - long c4 = 2097151 & (load_4(c, 10) >> 4); - long c5 = 2097151 & (load_3(c, 13) >> 1); - long c6 = 2097151 & (load_4(c, 15) >> 6); - long c7 = 2097151 & (load_3(c, 18) >> 3); - long c8 = 2097151 & load_3(c, 21); - long c9 = 2097151 & (load_4(c, 23) >> 5); - long c10 = 2097151 & (load_3(c, 26) >> 2); - long c11 = (load_4(c, 28) >> 7); - long s0; - long s1; - long s2; - long s3; - long s4; - long s5; - long s6; - long s7; - long s8; - long s9; - long s10; - long s11; - long s12; - long s13; - long s14; - long s15; - long s16; - long s17; - long s18; - long s19; - long s20; - long s21; - long s22; - long s23; - long carry0; - long carry1; - long carry2; - long carry3; - long carry4; - long carry5; - long carry6; - long carry7; - long carry8; - long carry9; - long carry10; - long carry11; - long carry12; - long carry13; - long carry14; - long carry15; - long carry16; - long carry17; - long carry18; - long carry19; - long carry20; - long carry21; - long carry22; - - s0 = c0 + a0 * b0; - s1 = c1 + a0 * b1 + a1 * b0; - s2 = c2 + a0 * b2 + a1 * b1 + a2 * b0; - s3 = c3 + a0 * b3 + a1 * b2 + a2 * b1 + a3 * b0; - s4 = c4 + a0 * b4 + a1 * b3 + a2 * b2 + a3 * b1 + a4 * b0; - s5 = c5 + a0 * b5 + a1 * b4 + a2 * b3 + a3 * b2 + a4 * b1 + a5 * b0; - s6 = c6 + a0 * b6 + a1 * b5 + a2 * b4 + a3 * b3 + a4 * b2 + a5 * b1 + a6 * b0; - s7 = c7 + a0 * b7 + a1 * b6 + a2 * b5 + a3 * b4 + a4 * b3 + a5 * b2 + a6 * b1 + a7 * b0; - s8 = c8 + a0 * b8 + a1 * b7 + a2 * b6 + a3 * b5 + a4 * b4 + a5 * b3 + a6 * b2 + a7 * b1 + a8 * b0; - s9 = c9 + a0 * b9 + a1 * b8 + a2 * b7 + a3 * b6 + a4 * b5 + a5 * b4 + a6 * b3 + a7 * b2 + a8 * b1 + a9 * b0; - s10 = c10 + a0 * b10 + a1 * b9 + a2 * b8 + a3 * b7 + a4 * b6 + a5 * b5 + a6 * b4 + a7 * b3 + a8 * b2 + a9 * b1 + a10 * b0; - s11 = c11 + a0 * b11 + a1 * b10 + a2 * b9 + a3 * b8 + a4 * b7 + a5 * b6 + a6 * b5 + a7 * b4 + a8 * b3 + a9 * b2 + a10 * b1 + a11 * b0; - s12 = a1 * b11 + a2 * b10 + a3 * b9 + a4 * b8 + a5 * b7 + a6 * b6 + a7 * b5 + a8 * b4 + a9 * b3 + a10 * b2 + a11 * b1; - s13 = a2 * b11 + a3 * b10 + a4 * b9 + a5 * b8 + a6 * b7 + a7 * b6 + a8 * b5 + a9 * b4 + a10 * b3 + a11 * b2; - s14 = a3 * b11 + a4 * b10 + a5 * b9 + a6 * b8 + a7 * b7 + a8 * b6 + a9 * b5 + a10 * b4 + a11 * b3; - s15 = a4 * b11 + a5 * b10 + a6 * b9 + a7 * b8 + a8 * b7 + a9 * b6 + a10 * b5 + a11 * b4; - s16 = a5 * b11 + a6 * b10 + a7 * b9 + a8 * b8 + a9 * b7 + a10 * b6 + a11 * b5; - s17 = a6 * b11 + a7 * b10 + a8 * b9 + a9 * b8 + a10 * b7 + a11 * b6; - s18 = a7 * b11 + a8 * b10 + a9 * b9 + a10 * b8 + a11 * b7; - s19 = a8 * b11 + a9 * b10 + a10 * b9 + a11 * b8; - s20 = a9 * b11 + a10 * b10 + a11 * b9; - s21 = a10 * b11 + a11 * b10; - s22 = a11 * b11; - s23 = 0; - - carry0 = (s0 + (1 << 20)) >> 21; s1 += carry0; s0 -= carry0 << 21; - carry2 = (s2 + (1 << 20)) >> 21; s3 += carry2; s2 -= carry2 << 21; - carry4 = (s4 + (1 << 20)) >> 21; s5 += carry4; s4 -= carry4 << 21; - carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21; - carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21; - carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21; - carry12 = (s12 + (1 << 20)) >> 21; s13 += carry12; s12 -= carry12 << 21; - carry14 = (s14 + (1 << 20)) >> 21; s15 += carry14; s14 -= carry14 << 21; - carry16 = (s16 + (1 << 20)) >> 21; s17 += carry16; s16 -= carry16 << 21; - carry18 = (s18 + (1 << 20)) >> 21; s19 += carry18; s18 -= carry18 << 21; - carry20 = (s20 + (1 << 20)) >> 21; s21 += carry20; s20 -= carry20 << 21; - carry22 = (s22 + (1 << 20)) >> 21; s23 += carry22; s22 -= carry22 << 21; - - carry1 = (s1 + (1 << 20)) >> 21; s2 += carry1; s1 -= carry1 << 21; - carry3 = (s3 + (1 << 20)) >> 21; s4 += carry3; s3 -= carry3 << 21; - carry5 = (s5 + (1 << 20)) >> 21; s6 += carry5; s5 -= carry5 << 21; - carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21; - carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21; - carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21; - carry13 = (s13 + (1 << 20)) >> 21; s14 += carry13; s13 -= carry13 << 21; - carry15 = (s15 + (1 << 20)) >> 21; s16 += carry15; s15 -= carry15 << 21; - carry17 = (s17 + (1 << 20)) >> 21; s18 += carry17; s17 -= carry17 << 21; - carry19 = (s19 + (1 << 20)) >> 21; s20 += carry19; s19 -= carry19 << 21; - carry21 = (s21 + (1 << 20)) >> 21; s22 += carry21; s21 -= carry21 << 21; - - s11 += s23 * 666643; - s12 += s23 * 470296; - s13 += s23 * 654183; - s14 -= s23 * 997805; - s15 += s23 * 136657; - s16 -= s23 * 683901; - s23 = 0; - - s10 += s22 * 666643; - s11 += s22 * 470296; - s12 += s22 * 654183; - s13 -= s22 * 997805; - s14 += s22 * 136657; - s15 -= s22 * 683901; - s22 = 0; - - s9 += s21 * 666643; - s10 += s21 * 470296; - s11 += s21 * 654183; - s12 -= s21 * 997805; - s13 += s21 * 136657; - s14 -= s21 * 683901; - s21 = 0; - - s8 += s20 * 666643; - s9 += s20 * 470296; - s10 += s20 * 654183; - s11 -= s20 * 997805; - s12 += s20 * 136657; - s13 -= s20 * 683901; - s20 = 0; - - s7 += s19 * 666643; - s8 += s19 * 470296; - s9 += s19 * 654183; - s10 -= s19 * 997805; - s11 += s19 * 136657; - s12 -= s19 * 683901; - s19 = 0; - - s6 += s18 * 666643; - s7 += s18 * 470296; - s8 += s18 * 654183; - s9 -= s18 * 997805; - s10 += s18 * 136657; - s11 -= s18 * 683901; - s18 = 0; - - carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21; - carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21; - carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21; - carry12 = (s12 + (1 << 20)) >> 21; s13 += carry12; s12 -= carry12 << 21; - carry14 = (s14 + (1 << 20)) >> 21; s15 += carry14; s14 -= carry14 << 21; - carry16 = (s16 + (1 << 20)) >> 21; s17 += carry16; s16 -= carry16 << 21; - - carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21; - carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21; - carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21; - carry13 = (s13 + (1 << 20)) >> 21; s14 += carry13; s13 -= carry13 << 21; - carry15 = (s15 + (1 << 20)) >> 21; s16 += carry15; s15 -= carry15 << 21; - - s5 += s17 * 666643; - s6 += s17 * 470296; - s7 += s17 * 654183; - s8 -= s17 * 997805; - s9 += s17 * 136657; - s10 -= s17 * 683901; - s17 = 0; - - s4 += s16 * 666643; - s5 += s16 * 470296; - s6 += s16 * 654183; - s7 -= s16 * 997805; - s8 += s16 * 136657; - s9 -= s16 * 683901; - s16 = 0; - - s3 += s15 * 666643; - s4 += s15 * 470296; - s5 += s15 * 654183; - s6 -= s15 * 997805; - s7 += s15 * 136657; - s8 -= s15 * 683901; - s15 = 0; - - s2 += s14 * 666643; - s3 += s14 * 470296; - s4 += s14 * 654183; - s5 -= s14 * 997805; - s6 += s14 * 136657; - s7 -= s14 * 683901; - s14 = 0; - - s1 += s13 * 666643; - s2 += s13 * 470296; - s3 += s13 * 654183; - s4 -= s13 * 997805; - s5 += s13 * 136657; - s6 -= s13 * 683901; - s13 = 0; - - s0 += s12 * 666643; - s1 += s12 * 470296; - s2 += s12 * 654183; - s3 -= s12 * 997805; - s4 += s12 * 136657; - s5 -= s12 * 683901; - s12 = 0; - - carry0 = (s0 + (1 << 20)) >> 21; s1 += carry0; s0 -= carry0 << 21; - carry2 = (s2 + (1 << 20)) >> 21; s3 += carry2; s2 -= carry2 << 21; - carry4 = (s4 + (1 << 20)) >> 21; s5 += carry4; s4 -= carry4 << 21; - carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21; - carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21; - carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21; - - carry1 = (s1 + (1 << 20)) >> 21; s2 += carry1; s1 -= carry1 << 21; - carry3 = (s3 + (1 << 20)) >> 21; s4 += carry3; s3 -= carry3 << 21; - carry5 = (s5 + (1 << 20)) >> 21; s6 += carry5; s5 -= carry5 << 21; - carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21; - carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21; - carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21; - - s0 += s12 * 666643; - s1 += s12 * 470296; - s2 += s12 * 654183; - s3 -= s12 * 997805; - s4 += s12 * 136657; - s5 -= s12 * 683901; - s12 = 0; - - carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; - carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; - carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; - carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; - carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; - carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; - carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; - carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; - carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; - carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; - carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; - carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21; - - s0 += s12 * 666643; - s1 += s12 * 470296; - s2 += s12 * 654183; - s3 -= s12 * 997805; - s4 += s12 * 136657; - s5 -= s12 * 683901; - s12 = 0; - - carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; - carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; - carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; - carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; - carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; - carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; - carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; - carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; - carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; - carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; - carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; - - unchecked - { - s[0] = (byte)(s0 >> 0); - s[1] = (byte)(s0 >> 8); - s[2] = (byte)((s0 >> 16) | (s1 << 5)); - s[3] = (byte)(s1 >> 3); - s[4] = (byte)(s1 >> 11); - s[5] = (byte)((s1 >> 19) | (s2 << 2)); - s[6] = (byte)(s2 >> 6); - s[7] = (byte)((s2 >> 14) | (s3 << 7)); - s[8] = (byte)(s3 >> 1); - s[9] = (byte)(s3 >> 9); - s[10] = (byte)((s3 >> 17) | (s4 << 4)); - s[11] = (byte)(s4 >> 4); - s[12] = (byte)(s4 >> 12); - s[13] = (byte)((s4 >> 20) | (s5 << 1)); - s[14] = (byte)(s5 >> 7); - s[15] = (byte)((s5 >> 15) | (s6 << 6)); - s[16] = (byte)(s6 >> 2); - s[17] = (byte)(s6 >> 10); - s[18] = (byte)((s6 >> 18) | (s7 << 3)); - s[19] = (byte)(s7 >> 5); - s[20] = (byte)(s7 >> 13); - s[21] = (byte)(s8 >> 0); - s[22] = (byte)(s8 >> 8); - s[23] = (byte)((s8 >> 16) | (s9 << 5)); - s[24] = (byte)(s9 >> 3); - s[25] = (byte)(s9 >> 11); - s[26] = (byte)((s9 >> 19) | (s10 << 2)); - s[27] = (byte)(s10 >> 6); - s[28] = (byte)((s10 >> 14) | (s11 << 7)); - s[29] = (byte)(s11 >> 1); - s[30] = (byte)(s11 >> 9); - s[31] = (byte)(s11 >> 17); - } - } - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/sc_reduce.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/sc_reduce.cs deleted file mode 100644 index 24eef9298..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/sc_reduce.cs +++ /dev/null @@ -1,279 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static partial class ScalarOperations - { - /* - Input: - s[0]+256*s[1]+...+256^63*s[63] = s - - Output: - s[0]+256*s[1]+...+256^31*s[31] = s mod l - where l = 2^252 + 27742317777372353535851937790883648493. - Overwrites s in place. - */ - - public static void sc_reduce(byte[] s) - { - long s0 = 2097151 & load_3(s, 0); - long s1 = 2097151 & (load_4(s, 2) >> 5); - long s2 = 2097151 & (load_3(s, 5) >> 2); - long s3 = 2097151 & (load_4(s, 7) >> 7); - long s4 = 2097151 & (load_4(s, 10) >> 4); - long s5 = 2097151 & (load_3(s, 13) >> 1); - long s6 = 2097151 & (load_4(s, 15) >> 6); - long s7 = 2097151 & (load_3(s, 18) >> 3); - long s8 = 2097151 & load_3(s, 21); - long s9 = 2097151 & (load_4(s, 23) >> 5); - long s10 = 2097151 & (load_3(s, 26) >> 2); - long s11 = 2097151 & (load_4(s, 28) >> 7); - long s12 = 2097151 & (load_4(s, 31) >> 4); - long s13 = 2097151 & (load_3(s, 34) >> 1); - long s14 = 2097151 & (load_4(s, 36) >> 6); - long s15 = 2097151 & (load_3(s, 39) >> 3); - long s16 = 2097151 & load_3(s, 42); - long s17 = 2097151 & (load_4(s, 44) >> 5); - long s18 = 2097151 & (load_3(s, 47) >> 2); - long s19 = 2097151 & (load_4(s, 49) >> 7); - long s20 = 2097151 & (load_4(s, 52) >> 4); - long s21 = 2097151 & (load_3(s, 55) >> 1); - long s22 = 2097151 & (load_4(s, 57) >> 6); - long s23 = (load_4(s, 60) >> 3); - - long carry0; - long carry1; - long carry2; - long carry3; - long carry4; - long carry5; - long carry6; - long carry7; - long carry8; - long carry9; - long carry10; - long carry11; - long carry12; - long carry13; - long carry14; - long carry15; - long carry16; - - s11 += s23 * 666643; - s12 += s23 * 470296; - s13 += s23 * 654183; - s14 -= s23 * 997805; - s15 += s23 * 136657; - s16 -= s23 * 683901; - s23 = 0; - - s10 += s22 * 666643; - s11 += s22 * 470296; - s12 += s22 * 654183; - s13 -= s22 * 997805; - s14 += s22 * 136657; - s15 -= s22 * 683901; - s22 = 0; - - s9 += s21 * 666643; - s10 += s21 * 470296; - s11 += s21 * 654183; - s12 -= s21 * 997805; - s13 += s21 * 136657; - s14 -= s21 * 683901; - s21 = 0; - - s8 += s20 * 666643; - s9 += s20 * 470296; - s10 += s20 * 654183; - s11 -= s20 * 997805; - s12 += s20 * 136657; - s13 -= s20 * 683901; - s20 = 0; - - s7 += s19 * 666643; - s8 += s19 * 470296; - s9 += s19 * 654183; - s10 -= s19 * 997805; - s11 += s19 * 136657; - s12 -= s19 * 683901; - s19 = 0; - - s6 += s18 * 666643; - s7 += s18 * 470296; - s8 += s18 * 654183; - s9 -= s18 * 997805; - s10 += s18 * 136657; - s11 -= s18 * 683901; - s18 = 0; - - carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21; - carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21; - carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21; - carry12 = (s12 + (1 << 20)) >> 21; s13 += carry12; s12 -= carry12 << 21; - carry14 = (s14 + (1 << 20)) >> 21; s15 += carry14; s14 -= carry14 << 21; - carry16 = (s16 + (1 << 20)) >> 21; s17 += carry16; s16 -= carry16 << 21; - - carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21; - carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21; - carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21; - carry13 = (s13 + (1 << 20)) >> 21; s14 += carry13; s13 -= carry13 << 21; - carry15 = (s15 + (1 << 20)) >> 21; s16 += carry15; s15 -= carry15 << 21; - - s5 += s17 * 666643; - s6 += s17 * 470296; - s7 += s17 * 654183; - s8 -= s17 * 997805; - s9 += s17 * 136657; - s10 -= s17 * 683901; - s17 = 0; - - s4 += s16 * 666643; - s5 += s16 * 470296; - s6 += s16 * 654183; - s7 -= s16 * 997805; - s8 += s16 * 136657; - s9 -= s16 * 683901; - s16 = 0; - - s3 += s15 * 666643; - s4 += s15 * 470296; - s5 += s15 * 654183; - s6 -= s15 * 997805; - s7 += s15 * 136657; - s8 -= s15 * 683901; - s15 = 0; - - s2 += s14 * 666643; - s3 += s14 * 470296; - s4 += s14 * 654183; - s5 -= s14 * 997805; - s6 += s14 * 136657; - s7 -= s14 * 683901; - s14 = 0; - - s1 += s13 * 666643; - s2 += s13 * 470296; - s3 += s13 * 654183; - s4 -= s13 * 997805; - s5 += s13 * 136657; - s6 -= s13 * 683901; - s13 = 0; - - s0 += s12 * 666643; - s1 += s12 * 470296; - s2 += s12 * 654183; - s3 -= s12 * 997805; - s4 += s12 * 136657; - s5 -= s12 * 683901; - s12 = 0; - - carry0 = (s0 + (1 << 20)) >> 21; s1 += carry0; s0 -= carry0 << 21; - carry2 = (s2 + (1 << 20)) >> 21; s3 += carry2; s2 -= carry2 << 21; - carry4 = (s4 + (1 << 20)) >> 21; s5 += carry4; s4 -= carry4 << 21; - carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21; - carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21; - carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21; - - carry1 = (s1 + (1 << 20)) >> 21; s2 += carry1; s1 -= carry1 << 21; - carry3 = (s3 + (1 << 20)) >> 21; s4 += carry3; s3 -= carry3 << 21; - carry5 = (s5 + (1 << 20)) >> 21; s6 += carry5; s5 -= carry5 << 21; - carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21; - carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21; - carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21; - - s0 += s12 * 666643; - s1 += s12 * 470296; - s2 += s12 * 654183; - s3 -= s12 * 997805; - s4 += s12 * 136657; - s5 -= s12 * 683901; - s12 = 0; - - carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; - carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; - carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; - carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; - carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; - carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; - carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; - carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; - carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; - carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; - carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; - carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21; - - s0 += s12 * 666643; - s1 += s12 * 470296; - s2 += s12 * 654183; - s3 -= s12 * 997805; - s4 += s12 * 136657; - s5 -= s12 * 683901; - s12 = 0; - - carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21; - carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21; - carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21; - carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21; - carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21; - carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21; - carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21; - carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21; - carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21; - carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21; - carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21; - - unchecked - { - s[0] = (byte)(s0 >> 0); - s[1] = (byte)(s0 >> 8); - s[2] = (byte)((s0 >> 16) | (s1 << 5)); - s[3] = (byte)(s1 >> 3); - s[4] = (byte)(s1 >> 11); - s[5] = (byte)((s1 >> 19) | (s2 << 2)); - s[6] = (byte)(s2 >> 6); - s[7] = (byte)((s2 >> 14) | (s3 << 7)); - s[8] = (byte)(s3 >> 1); - s[9] = (byte)(s3 >> 9); - s[10] = (byte)((s3 >> 17) | (s4 << 4)); - s[11] = (byte)(s4 >> 4); - s[12] = (byte)(s4 >> 12); - s[13] = (byte)((s4 >> 20) | (s5 << 1)); - s[14] = (byte)(s5 >> 7); - s[15] = (byte)((s5 >> 15) | (s6 << 6)); - s[16] = (byte)(s6 >> 2); - s[17] = (byte)(s6 >> 10); - s[18] = (byte)((s6 >> 18) | (s7 << 3)); - s[19] = (byte)(s7 >> 5); - s[20] = (byte)(s7 >> 13); - s[21] = (byte)(s8 >> 0); - s[22] = (byte)(s8 >> 8); - s[23] = (byte)((s8 >> 16) | (s9 << 5)); - s[24] = (byte)(s9 >> 3); - s[25] = (byte)(s9 >> 11); - s[26] = (byte)((s9 >> 19) | (s10 << 2)); - s[27] = (byte)(s10 >> 6); - s[28] = (byte)((s10 >> 14) | (s11 << 7)); - s[29] = (byte)(s11 >> 1); - s[30] = (byte)(s11 >> 9); - s[31] = (byte)(s11 >> 17); - } - } - - } -} diff --git a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/scalarmult.cs b/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/scalarmult.cs deleted file mode 100644 index 0eb525a3b..000000000 --- a/src/NATS.Client.Core/NaCl/Internal/Ed25519Ref10/scalarmult.cs +++ /dev/null @@ -1,168 +0,0 @@ -// Copyright 2019 The NATS Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Borrowed from https://github.com/CryptoManiac/Ed25519 - -using System; - -namespace NATS.Client.Core.NaCl.Internal.Ed25519Ref10 -{ - internal static class MontgomeryOperations - { - public static void scalarmult( - byte[] q, int qoffset, - byte[] n, int noffset, - byte[] p, int poffset) - { - FieldElement p0, q0; - FieldOperations.fe_frombytes2(out p0, p, poffset); - scalarmult(out q0, n, noffset, ref p0); - FieldOperations.fe_tobytes(q, qoffset, ref q0); - } - - internal static void scalarmult( - out FieldElement q, - byte[] n, int noffset, - ref FieldElement p) - { - byte[] e = new byte[32];//ToDo: remove allocation - FieldElement x1, x2, x3; - FieldElement z2, z3; - FieldElement tmp0, tmp1; - - for (int i = 0; i < 32; ++i) - e[i] = n[noffset + i]; - ScalarOperations.sc_clamp(e, 0); - x1 = p; - FieldOperations.fe_1(out x2); - FieldOperations.fe_0(out z2); - x3 = x1; - FieldOperations.fe_1(out z3); - - uint swap = 0; - for (int pos = 254; pos >= 0; --pos) - { - uint b = (uint)(e[pos / 8] >> (pos & 7)); - b &= 1; - swap ^= b; - FieldOperations.fe_cswap(ref x2, ref x3, swap); - FieldOperations.fe_cswap(ref z2, ref z3, swap); - swap = b; - - /* qhasm: enter ladder */ - - /* qhasm: D = X3-Z3 */ - /* asm 1: fe_sub(>D=fe#5,D=tmp0,B=fe#6,B=tmp1,A=fe#1,A=x2,C=fe#2,C=z2,DA=fe#4,DA=z3,CB=fe#2,CB=z2,BB=fe#5,BB=tmp0,AA=fe#6,AA=tmp1,t0=fe#3,t0=x3,t1=fe#2,t1=z2,X4=fe#1,X4=x2,E=fe#6,E=tmp1,t2=fe#2,t2=z2,t3=fe#4,t3=z3,X5=fe#3,X5=x3,t4=fe#5,t4=tmp0,Z5=fe#4,x1,Z5=z3,x1,Z4=fe#2,Z4=z2, - /// Allocation and initialization of the new SHA-512 object. - /// - public Sha512() - { - _sha512Inner = SHA512.Create(); - } - - private readonly SHA512 _sha512Inner; - - /// - /// Performs an initialization of internal SHA-512 state. - /// - public void Init() - { - _sha512Inner.Initialize(); - } - - /// - /// Updates internal state with data from the provided array. - /// - /// Array of bytes - /// Offset of byte sequence - /// Sequence length - public void Update(byte[] data, int index, int length) - { - _sha512Inner.TransformBlock(data, index, length, null, 0); - } - - /// - /// Finalizes SHA-512 hashing. - /// - /// Hash bytes - public byte[] FinalizeHash() - { - _ = _sha512Inner.TransformFinalBlock(Array.Empty(), 0, 0); - return _sha512Inner.Hash!; - } - - /// - /// Calculates SHA-512 hash value for the given bytes array. - /// - /// Data bytes array - /// Offset of byte sequence - /// Sequence length - /// Hash bytes - public static byte[] Hash(byte[] data, int index, int length) - { -#if NETSTANDARD - ArgumentNullExceptionEx.ThrowIfNull(data, nameof(data)); - using var sha512 = SHA512.Create(); - return sha512.ComputeHash(data, index, length); -#else - ArgumentNullException.ThrowIfNull(data); - ReadOnlySpan dataSpan = data; - return SHA512.HashData(dataSpan.Slice(index, length)); -#endif - } - - /// - public void Dispose() => _sha512Inner?.Dispose(); - } -} diff --git a/tests/NATS.Client.CoreUnit.Tests/NKeyTests.cs b/tests/NATS.Client.CoreUnit.Tests/NKeyTests.cs index 1393022ea..b743c467d 100644 --- a/tests/NATS.Client.CoreUnit.Tests/NKeyTests.cs +++ b/tests/NATS.Client.CoreUnit.Tests/NKeyTests.cs @@ -1,5 +1,5 @@ using System.Text; -using NATS.Client.Core.NaCl; +using NATS.NKeys; namespace NATS.Client.Core.Tests; @@ -9,33 +9,19 @@ public class NKeyTests public void NKey_Seed_And_Sign() { const string seed = "SUAAVWRZG6M5FA5VRRGWSCIHKTOJC7EWNIT4JV3FTOIPO4OBFR5WA7X5TE"; + const string expectedPublicKey = "UALQSMXRSAA7ZXIGDDJBJ2JOYJVQIWM3LQVDM5KYIPG4EP3FAGJ47BOJ"; const string expectedSignedResult = "49C5CC75BAA40FAFFD1B8FD9FE5B008A781EC4FF6C7DE18B64C7457B80BDA2A1B2DB556DCA02F8989469088D0D08A0BC3A07E05765CE6EA141F199C2F9EC5D03"; - const string expectedPublicKey = "170932F19001FCDD0618D214E92EC26B04599B5C2A36755843CDC23F650193CF"; var dataToSign = "Hello World"u8; - var nKey = NKeys.FromSeed(seed); + using var kp = KeyPair.FromSeed(seed.AsSpan()); // Sanity check public key - var actualPublicKey = ToHexString(nKey.PublicKey); - Assert.Equal(expectedPublicKey, actualPublicKey); + Assert.Equal(expectedPublicKey, kp.GetPublicKey()); // Sign and verify - var signedData = nKey.Sign(dataToSign.ToArray()); - var actual = ToHexString(signedData); - - Assert.Equal(expectedSignedResult, actual); - } - - [Fact] - public void Sha512_Hash() - { - var dataToHash = "Can I Haz Hash please?"u8; - const string ExpectedHash = "B8B57504AD522AC43AF52CB86BB10D315840C7D1B80BDF3A2524654F7C2C3B07C601ADD320E9F870A6FA8DA3003CFA1BE330133D0ABED7CE49F9251D2BB97421"; - - var dataArray = dataToHash.ToArray(); - var actual = ToHexString(Sha512.Hash(dataArray, 0, dataArray.Length)); - - Assert.Equal(ExpectedHash, actual); + var signature = new byte[64]; + kp.Sign(dataToSign.ToArray(), signature); + Assert.Equal(expectedSignedResult, ToHexString(signature)); } private static string ToHexString(byte[] bytes)