Review rev_a6c738a3437f4a71ae3e1313a1dcf34c

{
  "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/s2n-bignum-imported/arm/p521/unopt/bignum_mul_p521_base.S",
      "hash": "blake3:d9b9763ee2721c60742cedaa1515591a82fa191fb155830a47066879615f5ecc",
      "summary": "This ARM assembly implements modular multiplication for p521 and only performs register arithmetic, stack spill/restore, and writes the computed limbs to the caller-provided output buffer. I found no install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/p521/unopt/bignum_sqr_p521_base.S",
      "hash": "blake3:a33528ba4479968aa2470517c78b3dc0b53c7c0bbf0da32c78ffe6970a32e839",
      "summary": "The target file is a hand-written ARM64 assembly routine that computes a modular square in the P-521 field for AWS-LC/S2N bignum. I reviewed it for install-time execution, hidden subprocesses, network or exfiltration paths, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}