Review rev_2a3da2c05ade4361a214603dd21154a2

{
  "summary": "Reviewed `aws-lc/crypto/fipsmodule/cmac/cmac_test.cc`, which contains CMAC unit tests and known-answer test vector checks for AES and 3DES using local test fixtures. I found no concrete malicious or supply-chain indicators: there are no install hooks, network or exfiltration calls, credential/secret access, dynamic code loading, obfuscation/deobfuscation, or persistence behavior in this file.\nReviewed `aws-lc/crypto/bytestring/ber.c`, which implements BER-to-DER conversion and implicit ASN.1 string parsing with bounded recursion and EOC handling. I checked for install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload behavior, and found no concrete malicious or supply-chain indicators in this file.\nReviewed `aws-lc/include/openssl/hmac.h`, which is a public HMAC API header containing declarations, struct layout, and documentation for HMAC context handling and precomputed-key helpers. I checked for install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, and hidden execution paths, and found no concrete malicious or supply-chain indicators in this file.\nReviewed `aws-lc/ssl/custom_extensions.cc`, which implements registration, emission, and parsing of SSL custom extensions for client and server handshakes. I checked for install-time execution, hidden subprocesses, credential or environment harvesting, network exfiltration, dynamic code loading, obfuscation, and persistence/tampering behavior, 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/crypto/fipsmodule/cmac/cmac_test.cc",
      "hash": "blake3:b8c137bfe4aa4726a3a81ed6854c4272103bccba37057d6e12154847c3666e9b",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/cmac/cmac_test.cc`, which contains CMAC unit tests and known-answer test vector checks for AES and 3DES using local test fixtures. I found no concrete malicious or supply-chain indicators: there are no install hooks, network or exfiltration calls, credential/secret access, dynamic code loading, obfuscation/deobfuscation, or persistence behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/bytestring/ber.c",
      "hash": "blake3:156e1e6fdf315abbcb25b6ff5b0690f34e2fa8ed544b80d6aaa5bffea24798c0",
      "summary": "Reviewed `aws-lc/crypto/bytestring/ber.c`, which implements BER-to-DER conversion and implicit ASN.1 string parsing with bounded recursion and EOC handling. I checked for install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload behavior, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/include/openssl/hmac.h",
      "hash": "blake3:dbde5d2f74ba4907594d906720e5f48d86edbe14ea4ee86f4e0cf90c102cb1f0",
      "summary": "Reviewed `aws-lc/include/openssl/hmac.h`, which is a public HMAC API header containing declarations, struct layout, and documentation for HMAC context handling and precomputed-key helpers. I checked for install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, and hidden execution paths, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/ssl/custom_extensions.cc",
      "hash": "blake3:81658f36f327fb710e4ab286f375a55730650b4a4d0261f0492a2ea13fb3458d",
      "summary": "Reviewed `aws-lc/ssl/custom_extensions.cc`, which implements registration, emission, and parsing of SSL custom extensions for client and server handshakes. I checked for install-time execution, hidden subprocesses, credential or environment harvesting, network exfiltration, dynamic code loading, obfuscation, and persistence/tampering behavior, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}