Review rev_03635ed640c4487fa50250741c464398

{
  "summary": "Reviewed the target x86-64 assembly implementation of `sha3_keccak4_f1600_alt`, which performs the Keccak-f1600 permutation for SHA3 on four parallel states. I found no concrete supply-chain indicators in this file: no install hooks, no network or exfiltration behavior, no credential access, no dynamic code loading, no obfuscation/deobfuscation pipeline, and no persistence or environment tampering.",
  "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/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sha3/sha3_keccak4_f1600_alt.S",
      "hash": "blake3:eabdcd06ed17ef1d3904164c18486552ea20c9a4694698bdc46b732f3643876d",
      "summary": "Reviewed the target x86-64 assembly implementation of `sha3_keccak4_f1600_alt`, which performs the Keccak-f1600 permutation for SHA3 on four parallel states. I found no concrete supply-chain indicators in this file: no install hooks, no network or exfiltration behavior, no credential access, no dynamic code loading, no obfuscation/deobfuscation pipeline, and no persistence or environment tampering.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}