Review rev_cfbb8e5710c944d9b90f1434f9de4696

{
  "summary": "Reviewed the x86-64 assembly in `bignum_inv_p521.S`, which implements a modular inverse routine for P-521 using only register/stack arithmetic and control flow. I checked for install hooks, syscalls, network or credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.",
  "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/p521/bignum_inv_p521.S",
      "hash": "blake3:c56d6a5666099331b5c4714ccdbd9ec8bd3db848a12c83bb99a2188ba8519406",
      "summary": "Reviewed the x86-64 assembly in `bignum_inv_p521.S`, which implements a modular inverse routine for P-521 using only register/stack arithmetic and control flow. I checked for install hooks, syscalls, network or credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}