Review rev_efbf21fc6f9d4597b8734c65f14191ee

{
  "summary": "Reviewed the ARM64 assembly implementation of `sha3_keccak4_f1600_alt`, which is a handwritten Keccak-f1600 permutation used for SHA3 batching. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/deobfuscation, persistence, and other hidden control transfers, 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/arm/sha3/sha3_keccak4_f1600_alt.S",
      "hash": "blake3:84f2f80231b39ff5c12d5afb5e97c0d92d03148ed69b2e5dcebe780e2538b1e5",
      "summary": "Reviewed the ARM64 assembly implementation of `sha3_keccak4_f1600_alt`, which is a handwritten Keccak-f1600 permutation used for SHA3 batching. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/deobfuscation, persistence, and other hidden control transfers, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}