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by Horizon-Digital-Engineering • Uncategorized
A lightweight MCP server demonstrating authentication and FF3 format-preserving encryption over digits.
Securely encrypt and decrypt digit-based sensitive data using format-preserving encryption.
Authenticate requests via shared secrets or JWTs in different modes including production.
A lightweight MCP server to prototype or learn about FF3 FPE and MCP authentication.
FPE Demo MCP is a simple, readable implementation of a Model Context Protocol server that provides format-preserving encryption (FF3) and multiple authentication modes. It supports both stdio and HTTP transports, making it suitable for local and web-based LLM integrations. The server normalizes input to digits and returns encrypted values with a clear prefix for easy identification, ideal for learning and prototyping encryption with LLMs.