Review rev_27872872259a46feb3c5988577d12ca3

{
  "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/p384/bignum_montmul_p384.S",
      "hash": "blake3:399b1fbd2a22b50329a4049baf28cbee7b5b77987c62f7e7e7e419986f7f5916",
      "summary": "Reviewed the ARM64 assembly implementation of `bignum_montmul_p384`, which performs constant-time P-384 Montgomery multiplication and register/spill management. I checked for install-time hooks, subprocess execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/arm/p384/bignum_montmul_p384_alt.S",
      "hash": "blake3:0027c2bea0bddbe5be13de72014831a5e5c44fb67f47f18b184da029aa70dedc",
      "summary": "`aws-lc/third_party/s2n-bignum/arm/p384/bignum_montmul_p384_alt.S` is a hand-written ARM64 assembly routine for P-384 Montgomery multiplication with final conditional reduction back into the field modulus. I reviewed it for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}