Review rev_6f148320083b4bb78bb1d303391b6923

{
  "summary": "Reviewed aws-lc/crypto/trust_token/pmbtoken.c, which implements PMBTokens key derivation, blinding/unblinding, signing, verification, and token readout using elliptic-curve and hash-to-curve operations. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration paths, credential/secret harvesting, dynamic code loading, obfuscation/packing, or persistence/environment tampering behavior.",
  "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/trust_token/pmbtoken.c",
      "hash": "blake3:3bc228bc7fd7d8e365816ce61900560340073928498326c9ebf9256183ebad39",
      "summary": "Reviewed aws-lc/crypto/trust_token/pmbtoken.c, which implements PMBTokens key derivation, blinding/unblinding, signing, verification, and token readout using elliptic-curve and hash-to-curve operations. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration paths, credential/secret harvesting, dynamic code loading, obfuscation/packing, or persistence/environment tampering behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}