Review rev_1c333e0674614f328caa03698774ca53

{
  "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/x86_att/p384/bignum_montmul_p384.S",
      "hash": "blake3:5e16861b313f568db19ac1ee371bf64b2a202254d41ab474a8bae17f47531765",
      "summary": "The file is a hand-written x86-64 assembly implementation of P-384 Montgomery multiplication with Windows/Linux ABI handling, register save/restore, and constant-time field arithmetic. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_montmul_p384_alt.S",
      "hash": "blake3:1467a9c808ebbf6674715522e2f39d0d8ffe5f1b118fa761793815d7e78e395e",
      "summary": "Reviewed `aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_montmul_p384_alt.S`, which is a straight x86-64 assembly implementation of P-384 Montgomery multiplication and final conditional subtraction. I checked for install-time hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behaviors, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_montsqr_p384.S",
      "hash": "blake3:13dc7a0e3dea3218cb8cb4cf2e38e8c388d22afaf16fbf735839c649e49c63f1",
      "summary": "The target file is hand-written x86-64 assembly for `bignum_montsqr_p384`, implementing P-384 Montgomery squaring with ABI shims, register saves/restores, and a final conditional reduction. I checked it for install-time hooks, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, persistence tampering, and other supply-chain indicators, and found none.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}