Review rev_ba9dbf1d9e9640c5a9a7e8125c329e50

{
  "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/p256/bignum_montinv_p256.S",
      "hash": "blake3:a3e5846f2aa7b786c8ededb83eaf66ee67e311da07a8427398b7924ba028d1f0",
      "summary": "The target file is an x86-64 assembly implementation of Montgomery inversion for the P-256 field, consisting of arithmetic macros, register save/restore logic, and final reduction/copy-out steps. I checked for install-time hooks, subprocess execution, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, and persistence mechanisms, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}