[feat] add keccak circuit tests against Known Answer Test vectors

.github/workflows/ci.yml

@@ -40,6 +40,7 @@ jobs:
         working-directory: "hashes/zkevm"
         run: |
           cargo test packed_multi_keccak_prover::k_14
+          cargo t test_vanilla_keccak_kat_vectors
 
   lint:
     name: Lint

hashes/zkevm/src/keccak/vanilla/tests.rs

@@ -21,6 +21,7 @@ use crate::halo2_proofs::{
 use halo2_base::{
     halo2_proofs::halo2curves::ff::FromUniformBytes, utils::value_to_option, SKIP_FIRST_PASS,
 };
+use hex::FromHex;
 use rand_core::OsRng;
 use sha3::{Digest, Keccak256};
 use test_case::test_case;
@@ -291,3 +292,33 @@ fn packed_multi_keccak_prover(k: u32, rows_per_round: usize) {
     >(&verifier_params, pk.get_vk(), strategy, &[&[]], &mut verifier_transcript)
     .expect("failed to verify bench circuit");
 }
+
+// Keccak Known Answer Test (KAT) vectors from https://keccak.team/obsolete/KeccakKAT-3.zip.
+// Only selecting a small subset for now (add more later)
+// KAT includes inputs at the bit level; we only include the ones that are bytes
+#[test]
+fn test_vanilla_keccak_kat_vectors() {
+    let _ = env_logger::builder().is_test(true).try_init();
+
+    // input, output, Len in bits
+    let test_vectors = vec![
+            ("", "C5D2460186F7233C927E7DB2DCC703C0E500B653CA82273B7BFAD8045D85A470"), // ShortMsgKAT_256 Len = 0
+            ("CC", "EEAD6DBFC7340A56CAEDC044696A168870549A6A7F6F56961E84A54BD9970B8A"), // ShortMsgKAT_256 Len = 8
+            ("B55C10EAE0EC684C16D13463F29291BF26C82E2FA0422A99C71DB4AF14DD9C7F33EDA52FD73D017CC0F2DBE734D831F0D820D06D5F89DACC485739144F8CFD4799223B1AFF9031A105CB6A029BA71E6E5867D85A554991C38DF3C9EF8C1E1E9A7630BE61CAABCA69280C399C1FB7A12D12AEFC", "0347901965D3635005E75A1095695CCA050BC9ED2D440C0372A31B348514A889"), // ShortMsgKAT_256 Len = 920
+            ("2EDC282FFB90B97118DD03AAA03B145F363905E3CBD2D50ECD692B37BF000185C651D3E9726C690D3773EC1E48510E42B17742B0B0377E7DE6B8F55E00A8A4DB4740CEE6DB0830529DD19617501DC1E9359AA3BCF147E0A76B3AB70C4984C13E339E6806BB35E683AF8527093670859F3D8A0FC7D493BCBA6BB12B5F65E71E705CA5D6C948D66ED3D730B26DB395B3447737C26FAD089AA0AD0E306CB28BF0ACF106F89AF3745F0EC72D534968CCA543CD2CA50C94B1456743254E358C1317C07A07BF2B0ECA438A709367FAFC89A57239028FC5FECFD53B8EF958EF10EE0608B7F5CB9923AD97058EC067700CC746C127A61EE3", "DD1D2A92B3F3F3902F064365838E1F5F3468730C343E2974E7A9ECFCD84AA6DB"), // ShortMsgKAT_256 Len = 1952,
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ongMsgKAT_256 Len = 2048
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ongMsgKAT_256 Len = 16664
+            ("7ADC0B6693E61C269F278E6944A5A2D8300981E40022F839AC644387BFAC9086650085C2CDC585FEA47B9D2E52D65A2B29A7DC370401EF5D60DD0D21F9E2B90FAE919319B14B8C5565B0423CEFB827D5F1203302A9D01523498A4DB10374", "4CC2AFF141987F4C2E683FA2DE30042BACDCD06087D7A7B014996E9CFEAA58CE"), // ShortMsgKAT_256 Len = 752
+        ];
+
+    let mut inputs = vec![];
+    for (input, output) in test_vectors {
+        let input = Vec::from_hex(input).unwrap();
+        let output = Vec::from_hex(output).unwrap();
+        // test against native sha3 implementation because that's what we will test circuit against
+        let native_out = Keccak256::digest(&input);
+        assert_eq!(&output[..], &native_out[..]);
+        inputs.push(input);
+    }
+    verify::<Fr>(KeccakConfigParams { k: 12, rows_per_round: 5 }, inputs, true);
+}