genpark-jwt-hmac-sha256-token-attestation-skill
Enables agents to cryptographically attest and verify identity and execution state through RFC 7519 JWT HMAC-SHA256 signature checks, claims and expiration validation, constant-time secret comparison, SHA-256 Merkle inclusion proofs, Schnorr zero-knowledge identification, and sliding-window nonce replay protection. It runs as a zero-dependency Python MCP server over stdio, so it can be attached to Claude Desktop, Cursor, or Windsurf without external libraries.
Setup details
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