Review rev_c53f7ff37e0c4b2986e253047e49d042

{
  "summary": "Reviewed aws-lc/crypto/cipher_extra/tls_cbc.c, which contains constant-time TLS CBC padding removal and HMAC record-digest helpers for SHA-1/SHA-256/SHA-384. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence mechanisms.",
  "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/cipher_extra/tls_cbc.c",
      "hash": "blake3:d6044edc2f1ba431199115fe0ff1460662ca6b4da64172923617d46835087aef",
      "summary": "Reviewed aws-lc/crypto/cipher_extra/tls_cbc.c, which contains constant-time TLS CBC padding removal and HMAC record-digest helpers for SHA-1/SHA-256/SHA-384. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence mechanisms.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}