Review rev_7a577aff14134fc8929dbffef84d480d

{
  "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/decrepit/cast/cast_tables.c",
      "hash": "blake3:d127db0a7e5e0ff85f31eda78f7604d7392a4d18a6f40334a12b0cbc9c3d6002",
      "summary": "Reviewed `aws-lc/crypto/decrepit/cast/cast_tables.c`, which is a static CAST cipher lookup-table source file containing only constant `uint32_t` S-box arrays. I checked it for install-time hooks, subprocess launches, network or exfiltration code, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/decrepit/cast/cast_test.cc",
      "hash": "blake3:58c3a9db25f3c902a764583e6a259a724d87b2244db1be5663effa78f2ced348",
      "summary": "Reviewed `aws-lc/crypto/decrepit/cast/cast_test.cc`, which contains deterministic GoogleTest coverage for CAST5 ECB and CBC encryption/decryption against hard-coded test vectors. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload indicators; none are present in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/decrepit/cast/internal.h",
      "hash": "blake3:0fc0cbc155e7b96d5dc6a845fe625fdf1c3872847b9768448b3b778e0e61d46c",
      "summary": "`aws-lc/crypto/decrepit/cast/internal.h` is a small internal C header that only declares the CAST key structure, S-box tables, and encryption/decryption function prototypes. I checked it for install-time execution, subprocess spawning, network or exfiltration, credential access, dynamic code loading, obfuscation, and persistence mechanisms, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/decrepit/cfb/cfb.c",
      "hash": "blake3:da04c7e91cb2b84b240355af4cbf914327b02c4557ee2d266f4cb9e918a22a49",
      "summary": "Reviewed `aws-lc/crypto/decrepit/cfb/cfb.c`, which defines AES CFB1/CFB8/CFB128 EVP wrappers and local key/IV state handling for AES encryption/decryption. I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/decrepit/cfb/cfb_test.cc",
      "hash": "blake3:c10f8e51ab0d8465e7c0ecd962527f1dfa9e774b25bf73387b740fff8a826f12",
      "summary": "`aws-lc/crypto/decrepit/cfb/cfb_test.cc` is a gtest source file that exercises AES CFB1/CFB8/CFB128 encryption and decryption against fixed NIST test vectors. I checked the file for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence tampering and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}