Review rev_8ba5585304bd43c8af9f44d795a57133

{
  "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/bignum_sqr_p25519_alt.S",
      "hash": "blake3:20909508b5f84b216fc35ec68b6a96d1b9f44e224d8ee4c0c15239e398937a4f",
      "summary": "Reviewed this x86-64 assembly routine for Curve25519 field squaring modulo p25519. It performs only in-register arithmetic and ABI save/restore logic; I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/curve25519/bignum_sqrt_p25519.S",
      "hash": "blake3:448ce7d7e3c1754f3d074a25a5adaa726fda3441ba251ddd3e3f4545682a8596",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_sqrt_p25519`, which performs modular square-root and reduction arithmetic for Curve25519 using local stack temporaries and internal helper routines. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}