Review rev_065aee7ddb564416a7aab2b7bf3f7c86

{
  "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_epdouble.S",
      "hash": "blake3:a52e17fe7580c804052668eb9d9db07f298cf7d1b131d87a8b60ac005d85db15",
      "summary": "Reviewed the x86-64 assembly implementation of `edwards25519_epdouble`, which performs in-place field arithmetic for Edwards25519 point doubling using local stack temporaries and register-preserving ABI glue. I found no concrete indicators of install-time execution, network or exfiltration logic, credential/secret access, dynamic code loading, obfuscation, persistence, or hidden subprocess behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/curve25519/edwards25519_epdouble_alt.S",
      "hash": "blake3:809216b488e79f37b69363ebd28dbc234a0b1135924b3c45c608102903371c95",
      "summary": "Reviewed `aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/curve25519/edwards25519_epdouble_alt.S`, which is a handwritten x86-64 assembly routine for edwards25519 point doubling plus its field-arithmetic macros. I found no concrete malicious or supply-chain indicators: there are no install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation/deobfuscation, persistence, or unrelated system-probing behavior in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}