Review rev_7caa76dc749f4b39b81bf7607286a331

{
  "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/arm/curve25519/bignum_neg_p25519.S",
      "hash": "blake3:634b84b3dbc8a8d41860f221a346f997cf6233c6e24c345574d4c0ae3a0c20ef",
      "summary": "Reviewed the ARM assembly implementation of `bignum_neg_p25519`, which performs a fixed arithmetic negation modulo the Curve25519 prime using register operations and conditional selects. I checked for install-time hooks, network or exfiltration behavior, credential or environment access, dynamic code loading, obfuscation, and persistence mechanisms, and found none in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}