Review rev_58af8298bf2642b4be1f343105676bb6

{
  "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/fastmul/bignum_ksqr_32_64.S",
      "hash": "blake3:1bbae119f450aab1f9d7495b368efdb1eb0649caff4c6f98a951a52e6eb5a4bb",
      "summary": "Reviewed `aws-lc/third_party/s2n-bignum/arm/fastmul/bignum_ksqr_32_64.S`, which is straight AArch64 big-number squaring code with register save/restore and arithmetic-only buffer manipulation. I found no concrete malicious or supply-chain indicators: there are no install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation/packing, or persistence/environment-tampering behavior in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}