Review rev_fb16ce559e7949fe9bb56714a63d18ea

{
  "summary": "Reviewed `aws-lc/crypto/dilithium/pqcrystals_dilithium_ref_common/polyvec.c`, which is a straightforward Dilithium polynomial-vector helper implementation for matrix expansion, NTT/INTT transforms, arithmetic, norm checks, decomposition, hints, and packing. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise patterns in this file.\nReviewed the target assembly routine `bignum_mul_p521` in `aws-lc/third_party/s2n-bignum/x86_att/p521/bignum_mul_p521.S`. It is a self-contained constant-time big-integer multiply-and-reduce implementation using only register/stack arithmetic and ABI save/restore, with no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden control-flow beyond the expected `ret`.\nI reviewed this Perl code generator for the MD5 x86_64 assembly and checked its build-time execution path, subprocess invocation, and emitted text for signs of hidden downloads, credential access, obfuscation, persistence, or exfiltration. It is a straightforward perlasm emitter that opens the local `x86_64-xlate.pl` helper and prints deterministic assembly; I found no concrete malicious or supply-chain indicators in this target file.",
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "medium"
  },
  "files": [
    {
      "path": "aws-lc/crypto/dilithium/pqcrystals_dilithium_ref_common/polyvec.c",
      "hash": "blake3:b201c08e43e71e571057d7e4d019a9f183b8443fbc196b4be662ec61fc660717",
      "summary": "Reviewed `aws-lc/crypto/dilithium/pqcrystals_dilithium_ref_common/polyvec.c`, which is a straightforward Dilithium polynomial-vector helper implementation for matrix expansion, NTT/INTT transforms, arithmetic, norm checks, decomposition, hints, and packing. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise patterns in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p521/bignum_mul_p521.S",
      "hash": "blake3:c93cff346a131679b3b93d4fdc21d0e62c6fc170d715dd094c7b02575493c630",
      "summary": "Reviewed the target assembly routine `bignum_mul_p521` in `aws-lc/third_party/s2n-bignum/x86_att/p521/bignum_mul_p521.S`. It is a self-contained constant-time big-integer multiply-and-reduce implementation using only register/stack arithmetic and ABI save/restore, with no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden control-flow beyond the expected `ret`.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/md5/asm/md5-x86_64.pl",
      "hash": "blake3:a35aead4727c2c41296fc1c498c3fdc4da9e1517123aa0de22171e310f2a3a5b",
      "summary": "I reviewed this Perl code generator for the MD5 x86_64 assembly and checked its build-time execution path, subprocess invocation, and emitted text for signs of hidden downloads, credential access, obfuscation, persistence, or exfiltration. It is a straightforward perlasm emitter that opens the local `x86_64-xlate.pl` helper and prints deterministic assembly; I found no concrete malicious or supply-chain indicators in this target file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}