MCPS Crypto

Cryptographic primitives for MCPS protocol

MCPS (Model Context Protocol Secure) is "The HTTPS of MCP" - providing enterprise-grade security, encryption, and authentication for Model Context Protocol communications.

Overview

The mcps-crypto crate provides the cryptographic foundation for MCPS, including:

• 🔒 Modern Encryption - ChaCha20-Poly1305 authenticated encryption
• 🔑 Key Exchange - X25519 Elliptic Curve Diffie-Hellman
• 🛡️ Digital Signatures - Ed25519 signature verification
• 📊 Hashing - BLAKE3 high-performance cryptographic hash
• 🔐 Key Derivation - HKDF and PBKDF2 key derivation functions

Features

• Memory Safe: Pure Rust implementation with no C dependencies
• High Performance: Optimized for speed and security
• Constant Time: Timing-attack resistant implementations
• Well Tested: Comprehensive test suite and fuzzing
• Standards Compliant: Following RFC specifications

Quick Start

use mcps_crypto::{KeyPair, encrypt, decrypt};

fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Generate key pair
    let keypair = KeyPair::generate();
    
    // Encrypt message
    let message = b"Hello, secure world!";
    let encrypted = encrypt(message, &keypair.public_key())?;
    
    // Decrypt message
    let decrypted = decrypt(&encrypted, &keypair.private_key())?;
    assert_eq!(message, &decrypted[..]);
    
    println!("Encryption successful!");
    Ok(())
}

Cryptographic Primitives

This crate provides:

• Symmetric Encryption: ChaCha20-Poly1305 AEAD
• Asymmetric Encryption: X25519 key exchange
• Digital Signatures: Ed25519 signature scheme
• Hash Functions: BLAKE3 and SHA-256
• Key Derivation: HKDF-SHA256 and PBKDF2
• Random Generation: Cryptographically secure RNG

Documentation

• API Documentation
• MCPS Specification
• Cryptographic Design

Related Crates

• mcps-core - Core MCPS protocol implementation
• mcps-transport - MCPS transport layer
• mcps-protocol - Complete MCPS toolkit

License

Licensed under the Apache License, Version 2.0. See LICENSE for details.

Security

For security vulnerabilities, please see our Security Policy and report issues to security@kindly.dev.