Review rev_189008be298f489e9524f8f989faedfc

{
  "summary": "Reviewed `aws-lc/ssl/test/runner/prf.go`, which implements TLS PRF, HKDF label expansion, Finished-message hashing, and related key-derivation helpers. I checked for install-time hooks, hidden subprocess execution, network or exfiltration paths, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.\nReviewed `aws-lc/crypto/base64/base64.c`, which is a standard Base64 encode/decode implementation with constant-time character mapping for PEM handling. I checked for install hooks, hidden subprocess execution, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.",
  "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/ssl/test/runner/prf.go",
      "hash": "blake3:690daa9fe3794c3299bea8cab139a9da896894ccb7f07211f563a61d2b1e0d05",
      "summary": "Reviewed `aws-lc/ssl/test/runner/prf.go`, which implements TLS PRF, HKDF label expansion, Finished-message hashing, and related key-derivation helpers. I checked for install-time hooks, hidden subprocess execution, network or exfiltration paths, credential 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/crypto/base64/base64.c",
      "hash": "blake3:bfcfa1c7a84438627cc83818c38df48ddf1ca147c377bcc6a63f2b4e888c937e",
      "summary": "Reviewed `aws-lc/crypto/base64/base64.c`, which is a standard Base64 encode/decode implementation with constant-time character mapping for PEM handling. I checked for install hooks, hidden subprocess execution, network or exfiltration behavior, credential/secret access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}