Review rev_5af631ae722b42459abc0cbb8c8b0077

{
  "summary": "Reviewed the ASN.1 object and string helper implementation in `aws-lc/crypto/asn1/asn1_lib.c`, including tag/length parsing, ASN.1 object encoding, and `ASN1_STRING` allocation/copy/compare paths. No concrete malicious or supply-chain indicators were found in this file: I did not see install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence/tampering logic.\nReviewed `aws-lc/crypto/x509/by_dir.c`, which implements OpenSSL-style certificate and CRL directory lookup by reading the default cert-dir environment setting, scanning hashed filenames on disk, and loading matching cert/CRL files into the X509 store. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential harvesting, dynamic code loading, obfuscation, or persistence tampering 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/asn1/asn1_lib.c",
      "hash": "blake3:7cb4a00ff5305603d9e9b48a165e0c3ae8d3ec021f6cd0cd8cc47730f54516db",
      "summary": "Reviewed the ASN.1 object and string helper implementation in `aws-lc/crypto/asn1/asn1_lib.c`, including tag/length parsing, ASN.1 object encoding, and `ASN1_STRING` allocation/copy/compare paths. No concrete malicious or supply-chain indicators were found in this file: I did not see install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence/tampering logic.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/x509/by_dir.c",
      "hash": "blake3:96e54ff44b69f1dab59deeefa5816b2d35a09596d3315e0e61f31c9ab50d6770",
      "summary": "Reviewed `aws-lc/crypto/x509/by_dir.c`, which implements OpenSSL-style certificate and CRL directory lookup by reading the default cert-dir environment setting, scanning hashed filenames on disk, and loading matching cert/CRL files into the X509 store. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential harvesting, dynamic code loading, obfuscation, or persistence tampering in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}