Review rev_d0658b379ec74779bca9533bf3ef2b07

{
  "summary": "Reviewed `aws-lc/crypto/cipher_extra/e_aes_cbc_hmac_sha1.c`, which implements the AES-CBC-HMAC-SHA1 TLS cipher path and associated key/control handling. I checked for install hooks, network/exfiltration, credential or secret access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.\nReviewed `aws-lc/util/fipstools/integrity_tool/main.go`, a local ELF integrity utility that loads a file, extracts AWS-LC FIPS section hashes, optionally verifies them, and can dump section contents to temp files for inspection. I found no concrete malicious or supply-chain indicators in the target file: no install hooks, network or exfiltration behavior, credential or environment harvesting, dynamic code loading, obfuscation, or persistence/tampering logic.",
  "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/e_aes_cbc_hmac_sha1.c",
      "hash": "blake3:87488a028e2c56eaba1db7d36fe95a38598b231b49b333fd099c297a1cdd9737",
      "summary": "Reviewed `aws-lc/crypto/cipher_extra/e_aes_cbc_hmac_sha1.c`, which implements the AES-CBC-HMAC-SHA1 TLS cipher path and associated key/control handling. I checked for install hooks, network/exfiltration, credential or secret access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/util/fipstools/integrity_tool/main.go",
      "hash": "blake3:638d23c22053bae13ef917381d9707c0ca3abcc840a1730f0da25809a65a4acf",
      "summary": "Reviewed `aws-lc/util/fipstools/integrity_tool/main.go`, a local ELF integrity utility that loads a file, extracts AWS-LC FIPS section hashes, optionally verifies them, and can dump section contents to temp files for inspection. I found no concrete malicious or supply-chain indicators in the target file: no install hooks, network or exfiltration behavior, credential or environment harvesting, dynamic code loading, obfuscation, or persistence/tampering logic.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}