Review rev_173b853a893d4233b982e9e95b7ffcae

{
  "summary": "Reviewed the x86-64 assembly routine `sm2_montjdouble_alt`, which implements SM2 point doubling in Montgomery-Jacobian coordinates using only register arithmetic, stack temporaries, and a normal function prologue/epilogue. I checked for install hooks, calls to external code, network/exfiltration, credential or environment access, dynamic code loading, obfuscation, and persistence, 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/x86_att/sm2/sm2_montjdouble_alt.S",
      "hash": "blake3:6bdf363cfeb98de4383e1dbd599027061c66e0799b39cb975e17596fc5d10cfb",
      "summary": "Reviewed the x86-64 assembly routine `sm2_montjdouble_alt`, which implements SM2 point doubling in Montgomery-Jacobian coordinates using only register arithmetic, stack temporaries, and a normal function prologue/epilogue. I checked for install hooks, calls to external code, network/exfiltration, credential or environment access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}