Review rev_cdf459cc1cde417aaf7095416fc89ed7

{
  "summary": "Reviewed the ARM64 assembly implementation of `bignum_montsqr_p521_neon`, which is a hand-optimized Montgomery squaring routine for P-521 with register save/restore and a GNU stack note. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators in this file.",
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "medium"
  },
  "files": [
    {
      "path": "aws-lc/third_party/s2n-bignum/arm/p521/bignum_montsqr_p521_neon.S",
      "hash": "blake3:4ba84f05a9ec52a5c3877a605755ebfce2a2475201a19a92e0490642c6061f93",
      "summary": "Reviewed the ARM64 assembly implementation of `bignum_montsqr_p521_neon`, which is a hand-optimized Montgomery squaring routine for P-521 with register save/restore and a GNU stack note. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}