Review rev_d47a84f9f3214c3e842945d8ce1d13e8

{
  "summary": "Reviewed the ARM assembly implementation of `bignum_sqr_p521`, which is a straight-line field-squaring routine for P-521 with register save/restore and final writes back to the output buffer. I checked for install-time hooks, network or exfiltration calls, credential access, dynamic code loading, obfuscation, and persistence behavior, 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/s2n-bignum-imported/arm/p521/bignum_sqr_p521.S",
      "hash": "blake3:67e7b2587e3bc908750c556f08d7d4e4309d17bd9aea2eb7e48ffc4e5be345f0",
      "summary": "Reviewed the ARM assembly implementation of `bignum_sqr_p521`, which is a straight-line field-squaring routine for P-521 with register save/restore and final writes back to the output buffer. I checked for install-time hooks, network or exfiltration calls, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}