Review rev_169002a4065f470fa1bcac5b9a6a12c3

{
  "summary": "Reviewed `aws-lc/crypto/x509/by_file.c`, which implements certificate and CRL loading from local files and the default certificate path/environment. I checked for install hooks, subprocesses, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.\nReviewed `aws-lc/ssl/d1_lib.cc`, which implements DTLS timer setup, timeout handling, and retransmission/MTU backoff logic. I checked for install-time hooks, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.\nReviewed the ARM64 assembly routine in `aws-lc/third_party/s2n-bignum/arm/p384/bignum_montsqr_p384_alt.S`; it is a straight Montgomery squaring implementation for P-384 with register saves/restores, arithmetic only, and no concrete signs of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior.\nReviewed this C++ CMAC test file, which exercises AES-CMAC and 3DES-CMAC against RFC 4493, Wycheproof, and CAVP vectors using local test fixtures. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise in this target 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/crypto/x509/by_file.c",
      "hash": "blake3:4e957d86bc9d4ba94a6011b58700d7941eef2ec8b70a28b102c742c6016971e1",
      "summary": "Reviewed `aws-lc/crypto/x509/by_file.c`, which implements certificate and CRL loading from local files and the default certificate path/environment. I checked for install hooks, subprocesses, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/ssl/d1_lib.cc",
      "hash": "blake3:02deae8a7b84d611032e8ce16032a13cc77a1fad3fa9677eeb67368c2dfb091d",
      "summary": "Reviewed `aws-lc/ssl/d1_lib.cc`, which implements DTLS timer setup, timeout handling, and retransmission/MTU backoff logic. I checked for install-time hooks, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/arm/p384/bignum_montsqr_p384_alt.S",
      "hash": "blake3:afb1c14c2a8adf8291ef7682396c03f1c6ce1afd1d692861ddc1c31afe418f66",
      "summary": "Reviewed the ARM64 assembly routine in `aws-lc/third_party/s2n-bignum/arm/p384/bignum_montsqr_p384_alt.S`; it is a straight Montgomery squaring implementation for P-384 with register saves/restores, arithmetic only, and no concrete signs of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/cmac/cmac_test.cc",
      "hash": "blake3:5d3284e01d39d6eefd25d54de90d7c97cab796f48d106b696a67e4ac4ff18e36",
      "summary": "Reviewed this C++ CMAC test file, which exercises AES-CMAC and 3DES-CMAC against RFC 4493, Wycheproof, and CAVP vectors using local test fixtures. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise in this target file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}