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Digital Signature & Hash Validation

Digital Signature & Hash Validation

Every tool, agent definition, and prompt flow should be cryptographically signed before being loaded into an MCP server. This prevents tampering, forgery, and supply chain poisoning. Key Mechanisms:
  • SHA-256 or SHA3-512 for file hashing
  • Ed25519 or RSA-4096 for digital signatures
  • JSON-LD signatures for metadata payloads
Technical Workflow: [Tool Authoring] –> Hash artifact –> Sign with private key –> Publish to registry | [MCP Server Boot] –> Verify signature using public key –> Accept or Reject Bonus: Implement version locking via tool_hashlock.json to prevent mid-flight updates.
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