Review rev_9501ae82bdd04fe9989288e28a0dffe5

{
  "summary": "Reviewed the ARM assembly implementation of `bignum_montsqr_p521`, which is a straight-line P-521 Montgomery squaring routine with register saves/restores and final writes only to the caller-provided output buffer. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation/deobfuscation, persistence, or hidden subprocess execution 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_montsqr_p521.S",
      "hash": "blake3:3c0395bb22c4c0f08a37a91420b48fbbfd239a95a8e0f3efc51e838dfcbe0655",
      "summary": "Reviewed the ARM assembly implementation of `bignum_montsqr_p521`, which is a straight-line P-521 Montgomery squaring routine with register saves/restores and final writes only to the caller-provided output buffer. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation/deobfuscation, persistence, or hidden subprocess execution in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}