Review rev_4818510dd2684d82abf0f95164548724

{
  "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": "blake3:932ace84e155bf1406e70265cd7c1fd243c6422207d48c80ecb66c578a7d2971",
      "summary": "Reviewed `aws-lc/crypto/decrepit/cast/cast_tables.c`, which is a static set of CAST cipher S-box lookup tables and includes no executable logic beyond constant data definitions. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain indicators and found none.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/decrepit/cast/cast_test.cc",
      "hash": "blake3:fbdc5f2a33b319d53d8c807341359dbaf68c31401d56f945282da39585baf5bb",
      "summary": "Reviewed `aws-lc/crypto/decrepit/cast/cast_test.cc`, which is a deterministic GoogleTest file covering CAST5 ECB and CBC encryption/decryption against fixed test vectors. I checked for install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload behavior, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/decrepit/cast/internal.h",
      "hash": "blake3:eb93a686b283fc7d0a6cd5018cae1048e1443bdda16b380538c43201e0a9e550",
      "summary": "Reviewed the CAST internal header, which only declares the CAST key struct, lookup tables, constants, and encryption/decryption function prototypes. I checked for install-time execution, network or 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/crypto/decrepit/cfb/cfb.c",
      "hash": "blake3:42c1a1a004171a418847c54a4304c00dfbf707c87a7c8287d6ee93c3ab28f6d2",
      "summary": "`aws-lc/crypto/decrepit/cfb/cfb.c` is a straightforward AES CFB-mode implementation that initializes AES keys and dispatches to the standard CFB1/CFB8/CFB128 encrypt/decrypt routines. I checked for install-time execution, subprocess spawning, 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"
    },
    {
      "path": "aws-lc/crypto/decrepit/cfb/cfb_test.cc",
      "hash": "blake3:de30ac72a8b4d75ab0e4cc7ee73c586a5d27388560a79bc5f32d573ad6b81fb1",
      "summary": "Reviewed aws-lc/crypto/decrepit/cfb/cfb_test.cc, which is a deterministic GoogleTest suite of NIST AES CFB test vectors and encrypt/decrypt round-trip checks. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, or other supply-chain compromise in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}