Review rev_510fe295e6dd4782af838a83a117b5a7

{
  "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/curve25519/edwards25519_pdouble.S",
      "hash": "blake3:a80cea31facb7e37ebca5b95f8e7340141eba5f8e19fdad920c8806c6f9f1f88",
      "summary": "Reviewed the x86-64 assembly in `edwards25519_pdouble.S`, which implements deterministic edwards25519 point doubling with stack/register management and finite-field arithmetic only. I checked for install-time hooks, subprocess execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence/tampering, 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/curve25519/edwards25519_pdouble_alt.S",
      "hash": "blake3:c549af3967894341a908c84bc0b4bb49caeebde5281d19fd2c54555ae07abaaf",
      "summary": "This file is a hand-written x86-64 assembly routine for edwards25519 point doubling, built from fixed field-arithmetic macros and register saves/restores. I checked it for install hooks, subprocess or network activity, credential or environment access, dynamic code loading, obfuscation, persistence, and other payload-delivery behavior, and found no concrete malicious indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}