Review rev_50f4d03ade9040968b810adcab5d7e6b

{
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "high"
  },
  "files": [
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sha3/sha3_keccak4_f1600_alt.S",
      "hash": "blake3:eabdcd06ed17ef1d3904164c18486552ea20c9a4694698bdc46b732f3643876d",
      "summary": "The target file is a hand-written x86-64/AVX2 assembly implementation of the Keccak-f1600 permutation used by SHA3/SHAKE, with ABI shims and stack/register management only. I checked it for install-time execution, network or credential access, hidden downloads or dynamic code loading, obfuscation, persistence, and other supply-chain behaviors, and found no concrete malicious indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sha3/sha3_keccak_f1600.S",
      "hash": "blake3:f6f9ae219e571078978e86c113bae777d2b8ac00d208bc281ddd6fa7b8ff1f5a",
      "summary": "The target file is a hand-written x86-64 assembly implementation of the Keccak-f1600 permutation used by SHA3/SHAKE, with ABI setup, round processing, and state writes only. I checked for install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload behavior, and found no concrete malicious indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}