Review rev_9389912b3cf14e8f9aa2cb9642b719e9

{
  "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/p521/bignum_triple_p521.S",
      "hash": "blake3:a844d499fdc3fd2bc6c5710ace45310d02902f000e32e30b5b0f32ef4bf27ffc",
      "summary": "This file is a standalone x86-64 assembly implementation of `bignum_triple_p521`, performing constant-time 3*x mod p_521 arithmetic with ABI shims and register saves/restores. I checked for install hooks, network/exfiltration, 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/s2n-bignum-imported/x86_att/p521/bignum_triple_p521_alt.S",
      "hash": "blake3:22c8c5fb61d343b3378be43ea6034d4704c34e4b0b5bdb51d257c2b1bf30c6fd",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_triple_p521_alt`, which performs an in-place-style modular triple of a 521-bit field element with ABI-specific register setup and carry handling. I checked for install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}