Add VerifySecure functionality for secure BLS signature aggregation - #1
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Implements secure signature aggregation with deterministic coefficients to prevent rogue public key attacks. Adds AggregateSignature::from_signatures_secure() and Signature::verify_secure() methods with full C++ bls-signatures compatibility. - Add secure_aggregation module with coefficient generation - Update AggregateSignature with secure aggregation support - Add verify_secure method to Signature - Include comprehensive compatibility tests with C++ implementation - Update error types for secure aggregation edge cases 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
…t.rs Fixes misleading test name and documentation that claimed C++ compatibility but actually only tested secure aggregation functionality. Changes: - Rename file to reflect actual purpose (secure aggregation testing) - Remove unused C++ test vector bytes - Remove misleading documentation about C++ compatibility - Clean up console output and debug artifacts - Rename test functions to be more descriptive - Focus tests on actual functionality being tested The file now properly tests: - Secure aggregation prevents rogue key attacks - Normal aggregation fails verify_secure (security feature) - Deterministic coefficient generation - Key order independence Real C++ compatibility testing is handled by true_cross_compatibility.rs. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
Applies consistent Rust formatting to the VerifySecure-related files only. Does not include formatting changes to unrelated existing files. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
- Extract all duplicate test vectors to module-level constants - Eliminate ~60 lines of repeated hardcoded test data - Remove inappropriate console output from tests - Use shared MESSAGE_HELLO constant across all tests - Improve maintainability and follow DRY principles 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
WalkthroughThis update introduces secure aggregation for BLS signatures to prevent rogue key attacks. It adds a new Changes
Sequence Diagram(s)sequenceDiagram
participant Signer1
participant Signer2
participant Attacker
participant SecureAggregation
participant Verifier
Signer1->>SecureAggregation: Provide public key, signature
Signer2->>SecureAggregation: Provide public key, signature
Attacker->>SecureAggregation: Provide rogue public key, signature
SecureAggregation->>SecureAggregation: Sort public keys deterministically
SecureAggregation->>SecureAggregation: Generate coefficients via hashing
SecureAggregation->>SecureAggregation: Aggregate signatures with coefficients
SecureAggregation->>Verifier: Send aggregated signature & sorted public keys
Verifier->>SecureAggregation: Verify using coefficients and aggregated key
SecureAggregation-->>Verifier: Verification result (success/failure)
Poem
Warning There were issues while running some tools. Please review the errors and either fix the tool's configuration or disable the tool if it's a critical failure. 🔧 Clippy (1.86.0)warning: failed to write cache, path: /usr/local/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/an/yh/anyhow, error: Permission denied (os error 13) Caused by: ✨ Finishing Touches
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Actionable comments posted: 0
🧹 Nitpick comments (6)
tests/cpp_integration_test.rs (2)
91-91: Add a comment explaining the MESSAGE_HELLO constant.For better readability, consider adding a comment explaining that this represents the string "hello" in UTF-8 bytes.
-const MESSAGE_HELLO: [u8; 5] = [0x68, 0x65, 0x6c, 0x6c, 0x6f]; +// "hello" in UTF-8 bytes +const MESSAGE_HELLO: [u8; 5] = [0x68, 0x65, 0x6c, 0x6c, 0x6f];
95-170: Consider refactoring duplicated test logic.The two test functions
test_cpp_rust_two_signersandtest_cpp_rust_three_signerscontain significant duplicated code. Consider extracting a helper function to reduce duplication and improve maintainability.Example refactoring:
fn verify_cpp_rust_compatibility( sk_bytes: &[&[u8]], pk_bytes: &[&[u8]], sig_bytes: &[&[u8]], ) { let mut sks = Vec::new(); let mut pks = Vec::new(); let mut sigs = Vec::new(); // Import keys and signatures for i in 0..sk_bytes.len() { let sk = SecretKey::<Bls12381G2Impl>::try_from(sk_bytes[i]).unwrap(); let pk = PublicKey::<Bls12381G2Impl>::try_from(pk_bytes[i]).unwrap(); let sig = signature_from_raw_bytes(sig_bytes[i]).unwrap(); // Verify that imported secret keys generate correct public keys assert_eq!(PublicKey::from(&sk), pk, "C++ sk{} should generate pk{}", i+1, i+1); // Verify C++ signatures in Rust assert!(sig.verify(&pk, &MESSAGE_HELLO).is_ok()); sks.push(sk); pks.push(pk); sigs.push(sig); } // Test secure aggregation let secure_agg = AggregateSignature::from_signatures_secure(&sigs, &pks).unwrap(); let final_sig = match secure_agg { AggregateSignature::Basic(sig) => Signature::Basic(sig), _ => panic!("Expected Basic scheme"), }; // Verify secure aggregation assert!(final_sig.verify_secure(&pks, &MESSAGE_HELLO).is_ok()); }src/secure_aggregation.rs (1)
71-75: Clarify the endianness conversion logic.The conditional endianness conversion could benefit from additional explanation about why it's only needed on little-endian systems.
- // The representation is now in big-endian format - // Convert to little-endian if that's what the field element expects + // The representation is now in big-endian format (as per C++ compatibility) + // BLS12-381 field elements expect little-endian format on little-endian systems, + // so we need to reverse the bytes. On big-endian systems, the format matches. #[cfg(target_endian = "little")] repr_bytes.reverse();tests/secure_aggregation_test.rs (3)
10-10: Consider using explicit imports instead of wildcard import.While wildcard imports are acceptable in tests, explicit imports improve code clarity and make it easier to track dependencies.
-use blsful::*; +use blsful::{ + AggregateSignature, PublicKey, SecretKey, Signature, SignatureSchemes, Bls12381G1Impl +};
12-139: Consider refactoring to reduce code duplication.The three test functions share significant code for key generation, signing, and signature extraction. Consider extracting helper functions to improve maintainability.
+fn create_test_keys(count: usize) -> (Vec<SecretKey<Bls12381G1Impl>>, Vec<PublicKey>) { + let mut secret_keys = Vec::new(); + let mut public_keys = Vec::new(); + + for i in 1..=count { + let sk = SecretKey::<Bls12381G1Impl>::from_hash(&[i as u8; 32]); + let pk = PublicKey::from(&sk); + secret_keys.push(sk); + public_keys.push(pk); + } + + (secret_keys, public_keys) +} + +fn sign_message(keys: &[SecretKey<Bls12381G1Impl>], message: &[u8]) -> Vec<Signature> { + keys.iter() + .map(|sk| sk.sign(SignatureSchemes::Basic, message).unwrap()) + .collect() +} + +fn extract_basic_signature(agg_sig: AggregateSignature) -> Signature { + match agg_sig { + AggregateSignature::Basic(sig) => Signature::Basic(sig), + _ => panic!("Expected Basic aggregate signature"), + } +}
12-139: Consider adding edge case tests for comprehensive coverage.The current tests cover the main scenarios well, but consider adding tests for edge cases to ensure robustness.
Potential additional test cases:
- Single signer secure aggregation
- Empty signature/key arrays (error handling)
- Mismatched signature and key counts
- Large number of signers (performance/scalability)
- Different message lengths
- Invalid signatures in the aggregation
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📒 Files selected for processing (13)
.gitignore(1 hunks)examples/verify_secure_example.rs(1 hunks)src/aggregate_signature.rs(1 hunks)src/elgamal_ciphertext.rs(2 hunks)src/error.rs(1 hunks)src/lib.rs(1 hunks)src/secure_aggregation.rs(1 hunks)src/signature.rs(1 hunks)tests/c_compatibility_coefficient_test.rs(1 hunks)tests/cpp_integration_test.rs(1 hunks)tests/secure_aggregation_test.rs(1 hunks)tests/signatures.rs(3 hunks)tests/utils.rs(1 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (3)
src/lib.rs (2)
src/aggregate_signature.rs (1)
secure_aggregation(174-174)src/signature.rs (3)
secure_aggregation(152-152)secure_aggregation(155-155)secure_aggregation(162-162)
tests/signatures.rs (4)
src/aggregate_signature.rs (3)
from_signatures(126-128)from(110-112)verify(185-194)src/multi_signature.rs (3)
from_signatures(147-149)from(112-114)verify(127-135)src/traits/sig_multi.rs (1)
from_signatures(7-13)src/multi_public_key.rs (3)
from(42-44)from(50-52)from_public_keys(79-83)
src/secure_aggregation.rs (7)
examples/verify_secure_example.rs (1)
PublicKey(35-35)src/aggregate_signature.rs (1)
from(110-112)src/signature.rs (2)
from(83-85)verify_secure(145-165)src/traits/sig_core.rs (1)
core_verify(120-146)src/error.rs (2)
from(39-41)from(45-47)src/elgamal_ciphertext.rs (1)
from(100-102)src/lib.rs (2)
from(143-148)from(280-285)
🔇 Additional comments (20)
.gitignore (1)
4-4: LGTM! Standard macOS development practice.Adding
.DS_Storeto.gitignoreis a standard practice to prevent macOS system files from being committed to version control.tests/utils.rs (1)
3-5: LGTM! Simplified lifetime annotations.Removing the explicit
'staticlifetime annotation is correct since string literals already have'staticlifetime by default. This simplifies the code without changing functionality.src/lib.rs (1)
40-40: LGTM! Correctly adds the secure aggregation module.The addition of
mod secure_aggregation;properly integrates the new secure aggregation functionality into the crate's module structure. This aligns with the PR's objective of adding secure BLS signature aggregation to prevent rogue key attacks.src/error.rs (1)
30-32: LGTM! Well-designed error variant for secure aggregation.The
InvalidCoefficienterror variant appropriately handles the edge case of zero coefficient generation during secure aggregation. The descriptive error message and comment about it being "extremely rare" are appropriate for this cryptographic context.tests/signatures.rs (7)
110-110: LGTM! Stylistic improvement in function calls.Changing from slice references to direct array passing is a valid stylistic improvement. Both approaches work since the functions accept generic parameters bounded by
AsRef<[Signature<C>]>.
115-115: LGTM! Consistent array usage pattern.The change maintains consistency with the updated calling convention used throughout the test file.
119-119: LGTM! Consistent array usage pattern.The change maintains consistency with the updated calling convention used throughout the test file.
126-126: LGTM! Consistent array usage pattern.The change maintains consistency with the updated calling convention used throughout the test file.
146-146: LGTM! Consistent array usage pattern.The change maintains consistency with the updated calling convention used throughout the test file.
154-154: LGTM! Consistent array usage pattern.The change maintains consistency with the updated calling convention used throughout the test file.
169-169: LGTM! Consistent array usage pattern.The change maintains consistency with the updated calling convention used throughout the test file.
src/signature.rs (1)
144-165: Excellent implementation of secure signature verification!The
verify_securemethod provides a robust solution against rogue key attacks by:
- Properly dispatching to scheme-specific secure verification functions
- Following the established pattern of the existing
verifymethod- Accepting multiple public keys for multi-signer verification
- Integrating seamlessly with the new
secure_aggregationmoduleThis is a critical security enhancement that complements the existing verification capabilities.
src/elgamal_ciphertext.rs (2)
50-50: Good lifetime simplification.Removing the explicit lifetime parameter on
selfimproves code clarity while maintaining the same functionality. The compiler can infer the lifetime automatically.
66-66: Consistent lifetime simplification.This change matches the pattern applied elsewhere in the trait implementations, maintaining consistency and improving readability.
tests/c_compatibility_coefficient_test.rs (1)
8-75: Comprehensive test for secure aggregation coefficients.This test effectively validates the key security properties:
- Uses seeded RNG for reproducible results
- Tests order independence by verifying both forward and reverse key orders
- Confirms that secure aggregation passes
verify_secure- Validates that normal aggregation fails
verify_secure(important security check)- Provides clear debug output for troubleshooting
The test thoroughly covers the critical aspects of secure aggregation and coefficient generation.
src/aggregate_signature.rs (1)
130-182: Excellent implementation of secure signature aggregation.The
from_signatures_securemethod provides robust protection against rogue key attacks with:
- Comprehensive input validation (array lengths, empty inputs, scheme consistency)
- Clear error messages for debugging
- Proper integration with the
secure_aggregationmodule- Well-structured documentation explaining the security benefits
- Consistent API design following the existing
from_signaturespatternThe method's thorough input validation and error handling make it both secure and user-friendly.
examples/verify_secure_example.rs (1)
1-89: Excellent educational example demonstrating secure verification.This example effectively:
- Demonstrates the rogue key attack vulnerability with clear mathematical explanation
- Shows how
verify_secureprevents the attack through deterministic coefficients- Tests key order independence to validate consistent behavior
- Provides comprehensive explanations of the security mechanisms
- Includes implementation guidance on when to use secure vs standard verification
The example serves as both a practical demonstration and educational resource for understanding BLS signature security. The step-by-step breakdown of the attack and prevention makes it particularly valuable for developers.
tests/secure_aggregation_test.rs (3)
12-62: Excellent test coverage for secure aggregation security properties.This test effectively validates the core security feature - that secure aggregation prevents rogue key attacks while normal aggregation fails secure verification. The test structure is logical and the assertions properly verify the expected behavior.
64-104: Good test for key order independence.This test correctly verifies that the internal sorting of keys for coefficient generation works as expected, ensuring deterministic behavior regardless of input order.
106-139: Deterministic behavior test is well-implemented.The test properly validates that secure aggregation produces consistent results for identical inputs, which is crucial for the deterministic coefficient generation feature.
Performance improvements: - Create hash_public_keys_with_sorted() that returns both sorted keys and coefficients - Eliminate duplicate O(n log n) sorting in aggregate_secure() and verify_secure_with_dst() - Reduce key serialization overhead during comparisons - Maintain exact C++ compatibility and all existing functionality The optimization targets the actual performance bottleneck (sorting the same keys multiple times) without adding unnecessary complexity or changing the cryptographic behavior. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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Actionable comments posted: 1
🧹 Nitpick comments (2)
src/secure_aggregation.rs (2)
20-26: Consider removing the dead code annotation.The
hash_public_keysfunction is marked as#[allow(dead_code)]but could be useful for API completeness. Consider either removing the annotation if it's used elsewhere or removing the function entirely if it's truly unnecessary.-#[allow(dead_code)] -fn hash_public_keys<C: BlsSignatureImpl>( - public_keys: &[PublicKey<C>], -) -> BlsResult<Vec<<<C as Pairing>::PublicKey as Group>::Scalar>> { - let (_, coefficients) = hash_public_keys_with_sorted(public_keys)?; - Ok(coefficients) -}
126-135: Optimize index mapping to avoid O(n²) complexity.The current approach uses nested iteration to find index mappings, which results in O(n²) complexity for large key sets. This can be optimized using a HashMap.
- // Create index mapping from original to sorted order - let mut sorted_indices = Vec::with_capacity(sorted_keys.len()); - for sorted_key in &sorted_keys { - let sorted_bytes = sorted_key.0.to_bytes(); - let idx = public_keys - .iter() - .position(|k| k.0.to_bytes().as_ref() == sorted_bytes.as_ref()) - .ok_or_else(|| BlsError::InvalidInputs("Key mismatch".to_string()))?; - sorted_indices.push(idx); - } + // Create index mapping from original to sorted order using HashMap for O(n) complexity + use std::collections::HashMap; + let key_to_index: HashMap<Vec<u8>, usize> = public_keys + .iter() + .enumerate() + .map(|(i, k)| (k.0.to_bytes().as_ref().to_vec(), i)) + .collect(); + + let mut sorted_indices = Vec::with_capacity(sorted_keys.len()); + for sorted_key in &sorted_keys { + let sorted_bytes = sorted_key.0.to_bytes().as_ref().to_vec(); + let idx = key_to_index.get(&sorted_bytes) + .ok_or_else(|| BlsError::InvalidInputs("Key mismatch".to_string()))?; + sorted_indices.push(*idx); + }
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🔇 Additional comments (7)
src/secure_aggregation.rs (7)
1-8: Module structure and imports look good.The module documentation clearly explains the purpose and the imports are appropriate for the functionality.
147-173: Verification logic is well-structured and secure.The verification function correctly handles the empty case, generates deterministic coefficients, and performs proper aggregation before verification. The approach prevents rogue key attacks by ensuring each public key is weighted by a unique coefficient.
175-205: Scheme-specific verification functions provide good API design.The separate verification functions for Basic, Message Augmentation, and Proof of Possession schemes provide a clean API while reusing the core verification logic.
212-258: Comprehensive test coverage for basic functionality.The test effectively verifies deterministic behavior, order independence, and proper error handling. The test structure is well-organized and covers key scenarios.
281-320: Excellent test for rogue key attack prevention.This test demonstrates the security benefit of the implementation by showing how a rogue key attack would fail with secure aggregation. The test setup clearly illustrates the attack scenario and validates the protection mechanism.
322-341: Good edge case testing for empty inputs.The test properly handles the edge case of empty public key arrays and validates both success and failure scenarios.
343-383: Thorough multi-signature scenario testing.The test covers a realistic multi-signature scenario with multiple signers and validates proper aggregation, verification, and error conditions.
| // Create a field element representation | ||
| let mut repr = | ||
| <<<C as Pairing>::PublicKey as Group>::Scalar as PrimeField>::Repr::default(); | ||
| let repr_bytes = repr.as_mut(); | ||
|
|
||
| // Copy the hash into the representation | ||
| // For BLS12-381, the scalar field is ~255 bits, stored in 32 bytes | ||
| // The hash is 32 bytes, so it fits directly | ||
| if repr_bytes.len() >= 32 { | ||
| // Copy hash to the least significant bytes (big-endian interpretation) | ||
| let offset = repr_bytes.len() - 32; | ||
| repr_bytes[offset..].copy_from_slice(&hash); | ||
| // Zero out any higher bytes | ||
| for byte in &mut repr_bytes[..offset] { | ||
| *byte = 0; | ||
| } | ||
| } else { | ||
| // This shouldn't happen for BLS12-381, but handle it gracefully | ||
| return Err(BlsError::InvalidInputs( | ||
| "Field representation too small".to_string(), | ||
| )); | ||
| } | ||
|
|
||
| // The representation is now in big-endian format | ||
| // Convert to little-endian if that's what the field element expects | ||
| #[cfg(target_endian = "little")] | ||
| repr_bytes.reverse(); |
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🛠️ Refactor suggestion
Endianness handling may not be robust across all platforms.
The conditional compilation for endianness using #[cfg(target_endian = "little")] assumes the target platform's endianness determines the field representation format. However, the field representation format should be determined by the cryptographic library's implementation, not the platform.
Consider using a more robust approach that checks the actual field representation format:
- // The representation is now in big-endian format
- // Convert to little-endian if that's what the field element expects
- #[cfg(target_endian = "little")]
- repr_bytes.reverse();
+ // Check if we need to reverse bytes based on the field's expected format
+ // This should be determined by the cryptographic library's representation
+ // Most BLS12-381 implementations use little-endian representation
+ repr_bytes.reverse();📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // Create a field element representation | |
| let mut repr = | |
| <<<C as Pairing>::PublicKey as Group>::Scalar as PrimeField>::Repr::default(); | |
| let repr_bytes = repr.as_mut(); | |
| // Copy the hash into the representation | |
| // For BLS12-381, the scalar field is ~255 bits, stored in 32 bytes | |
| // The hash is 32 bytes, so it fits directly | |
| if repr_bytes.len() >= 32 { | |
| // Copy hash to the least significant bytes (big-endian interpretation) | |
| let offset = repr_bytes.len() - 32; | |
| repr_bytes[offset..].copy_from_slice(&hash); | |
| // Zero out any higher bytes | |
| for byte in &mut repr_bytes[..offset] { | |
| *byte = 0; | |
| } | |
| } else { | |
| // This shouldn't happen for BLS12-381, but handle it gracefully | |
| return Err(BlsError::InvalidInputs( | |
| "Field representation too small".to_string(), | |
| )); | |
| } | |
| // The representation is now in big-endian format | |
| // Convert to little-endian if that's what the field element expects | |
| #[cfg(target_endian = "little")] | |
| repr_bytes.reverse(); | |
| // Check if we need to reverse bytes based on the field's expected format | |
| // This should be determined by the cryptographic library's representation | |
| // Most BLS12-381 implementations use little-endian representation | |
| repr_bytes.reverse(); |
🤖 Prompt for AI Agents
In src/secure_aggregation.rs lines 62 to 88, the current code reverses the byte
order based on the platform's endianness using #[cfg(target_endian = "little")],
which is incorrect because the field representation format depends on the
cryptographic library, not the platform. To fix this, remove the platform-based
conditional reversal and instead use the cryptographic library's documented
methods or constants to determine the correct byte order for the field
representation, ensuring the hash bytes are copied and interpreted correctly
according to the library's expected endianness.
Remove platform-dependent endianness conversion that incorrectly used #[cfg(target_endian = "little")] to determine byte order. The field representation endianness should be determined by the cryptographic library specification, not the platform endianness. This fixes cross-platform compatibility and ensures deterministic coefficient generation across all platforms while maintaining C++ bls-signatures library compatibility. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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Actionable comments posted: 0
🧹 Nitpick comments (1)
src/secure_aggregation.rs (1)
126-135: Index mapping has O(n²) complexity that could be optimized.The current approach performs a linear search for each sorted key to find its original index. This results in O(n²) complexity for large key sets.
Consider optimizing the index mapping by creating it during the sorting process:
- // Create index mapping from original to sorted order - let mut sorted_indices = Vec::with_capacity(sorted_keys.len()); - for sorted_key in &sorted_keys { - let sorted_bytes = sorted_key.0.to_bytes(); - let idx = public_keys - .iter() - .position(|k| k.0.to_bytes().as_ref() == sorted_bytes.as_ref()) - .ok_or_else(|| BlsError::InvalidInputs("Key mismatch".to_string()))?; - sorted_indices.push(idx); - } + // Create index mapping during sorting for O(n log n) complexity + let mut indexed_keys: Vec<(usize, &PublicKey<C>)> = public_keys.iter().enumerate().collect(); + indexed_keys.sort_by(|a, b| a.1.0.to_bytes().as_ref().cmp(b.1.0.to_bytes().as_ref())); + let sorted_indices: Vec<usize> = indexed_keys.iter().map(|(idx, _)| *idx).collect(); + let sorted_keys: Vec<PublicKey<C>> = indexed_keys.iter().map(|(_, pk)| **pk).collect();Note: This would require adjusting the
hash_public_keys_with_sortedfunction signature to work with this optimization.
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🔇 Additional comments (7)
src/secure_aggregation.rs (7)
1-8: Module structure and imports look good.The module documentation clearly explains the purpose and the imports are appropriate for the functionality.
62-83: Coefficient generation logic handles field representation correctly.The code properly handles the field representation by:
- Checking if the representation is large enough (≥32 bytes)
- Copying the hash to the least significant bytes for big-endian interpretation
- Zeroing out higher bytes when the representation is larger than the hash
This approach correctly implements the C++ compatibility requirement for big-endian integer interpretation.
85-89: Endianness fix addresses the previous review concern.The removal of platform-dependent endianness conversion is the correct approach, as noted in the past review comments. The field representation format should be determined by the cryptographic library, not the platform.
97-100: Zero coefficient check is appropriate for security.Checking for zero coefficients is important for security, as zero coefficients would break the secure aggregation properties. The probability of this occurring is extremely low with SHA-256, but the check is still valuable.
146-173: Verification function implements secure aggregation correctly.The verification logic properly:
- Handles empty key arrays by checking for identity signature
- Generates the same deterministic coefficients used in aggregation
- Aggregates public keys with coefficients before verification
- Uses the appropriate DST for each signature scheme
This correctly implements the secure verification to prevent rogue key attacks.
280-320: Rogue key attack test demonstrates the security protection.This test case excellently demonstrates how the secure aggregation prevents rogue key attacks by showing that an attacker cannot create a malicious key that would allow them to forge signatures in the naive aggregation scenario.
207-383: Test coverage is comprehensive and well-structured.The test suite covers all critical scenarios:
- Basic verification functionality
- Deterministic coefficient generation
- Rogue key attack protection
- Empty key handling
- Multi-signature aggregation
- Key order independence
This provides excellent confidence in the implementation's correctness and security.
2 participants
Summary
Key Features
Files Added/Modified
src/secure_aggregation.rs- Core VerifySecure implementation with coefficient generationsrc/signature.rs- Addedverify_secure()method for secure signature verificationsrc/aggregate_signature.rs- Addedfrom_signatures_secure()method for secure aggregationexamples/verify_secure_example.rs- Complete usage example demonstrating the functionalitytests/secure_aggregation_test.rs- Functional tests for secure aggregation behaviortests/cpp_integration_test.rs- Cross-compatibility tests with C++ test vectorstests/c_compatibility_coefficient_test.rs- Coefficient generation validation testsTest Plan
🤖 Generated with Claude Code
Summary by CodeRabbit
New Features
Bug Fixes
Tests
Style
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.gitignoreto exclude.DS_Storefiles.