Review rev_69d409192d344061beb1c3aca5c902d8

{
  "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/cipher_extra/derive_key.c",
      "hash": "blake3:8d693041fb4105d33a30ab1ea9c2c72f3bd551ae8fc855aa0d36fb4c9d5f4c17",
      "summary": "Reviewed `aws-lc/crypto/cipher_extra/derive_key.c`, which contains the `EVP_BytesToKey` key-derivation routine that hashes input bytes with an optional salt and derives key/IV material. I checked this file for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload execution, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/cipher_extra/e_aes_cbc_hmac_sha1.c",
      "hash": "blake3:e9168479a4d67649c006895c859d2330520c91633418ac09a0249c8e444ebaac",
      "summary": "This file implements the AES-CBC-HMAC-SHA1 TLS stitched cipher path, including key setup, encrypt/decrypt processing, and TLS AAD handling. I reviewed it for install-time hooks, network or exfiltration behavior, 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/cipher_extra/e_aes_cbc_hmac_sha256.c",
      "hash": "blake3:19617611addd16c8d2e5635d4d30c0178b5f7b25e3ed0ae38b44970934d240a0",
      "summary": "Reviewed `aws-lc/crypto/cipher_extra/e_aes_cbc_hmac_sha256.c`, which implements the AES-CBC-HMAC-SHA256 stitched TLS cipher path for encrypt/decrypt and its control handling. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration calls, credential/secret harvesting, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/cipher_extra/e_aesctrhmac.c",
      "hash": "blake3:425b87ba88d30cd69a4eb387392ded0ecb99119009152c2bcac5e5999b681e01",
      "summary": "Reviewed `aws-lc/crypto/cipher_extra/e_aesctrhmac.c`, which implements AES-CTR plus HMAC-SHA256 AEAD setup, seal/open paths, and tag calculation. I checked for install hooks, subprocess execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and unrelated probing; none were present in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}