Review rev_f3287c2e08604618a4dc51b50e224d75

{
  "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_decode_alt.S",
      "hash": "blake3:8c30d437c4a07e44677af71a5359c3b1e8ec52ec1e68eface4d1ed2d1459a371",
      "summary": "This file is handwritten x86-64 assembly that implements Edwards25519 compressed-point decoding and the supporting modular field multiply/square routines. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/curve25519/edwards25519_encode.S",
      "hash": "blake3:12d1972020dd6baae47b2c6b99e4a495312c6c57b1cd5bf30b7cf147a2a1b10c",
      "summary": "Reviewed the x86-64 assembly implementation of `edwards25519_encode`, which only reads the input point limbs, copies the `y` coordinate into the 32-byte output, and moves the low bit of `x` into the top bit of the encoding. I found no concrete supply-chain or malicious indicators in this file: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}