Review rev_a93dfb807c6d479c8f4f14b6d649ece5

{
  "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/crypto/fipsmodule/sha/sha1-altivec.c",
      "hash": "blake3:95e6c77dcacbdb809a81b9a35df164fee54445fd593208009b359242df47bd64",
      "summary": "Reviewed the ppc64le-only Altivec SHA-1 block compression implementation in `aws-lc/crypto/fipsmodule/sha/sha1-altivec.c`. It is a straight hashing routine gated by `OPENSSL_PPC64LE`, and I found no concrete indicators of install-time execution, network exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/sha/sha1.c",
      "hash": "blake3:7870051efeca815c9b0f09424fd505364d05648b22dae021bd273c45e18552a4",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/sha/sha1.c`, which is a SHA-1 implementation with FIPS service-indicator bookkeeping and optional CPU-specific dispatch to internal hardware/AVX/NEON code paths. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration logic, credential harvesting, dynamic code loading, obfuscation, persistence changes, or unrelated system probing.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/sha/sha256.c",
      "hash": "blake3:f038e0677eb4ef4452d7f87c63b65ac01af46e29043625a824b7209cea447274",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/sha/sha256.c`, which implements SHA-224/SHA-256 initialization, state import/export, finalization, and block-processing with optional CPU-specific dispatch. I found no concrete malicious or supply-chain indicators in the target file: no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}