Crypto MCP Server

A comprehensive Model Context Protocol (MCP) server that provides all known cryptographic tools and operations. This server implements real cryptographic functions without simulations, using industry-standard libraries for security and performance.

Features

Hashing Algorithms

• MD5, SHA-1, SHA-256, SHA-384, SHA-512
• SHA-3 (224, 256, 384, 512 bits)
• Blake2 (blake2b, blake2s)
• RIPEMD-160
• HMAC with SHA-256, SHA-384, SHA-512

Symmetric Encryption

• AES encryption/decryption with multiple modes (CBC, ECB, CFB, OFB, CTR)
• ChaCha20-Poly1305 authenticated encryption
• DES and Triple DES (3DES) encryption/decryption
• Blowfish, Twofish, Serpent, Camellia encryption/decryption
• CAST5, IDEA, RC2, RC4 encryption/decryption
• SM4 (Chinese standard), ARIA (Korean standard), SEED (Korean standard)
• Kuznyechik (Russian standard), Magma (Russian standard)
• Configurable padding (PKCS7, none)

Asymmetric Encryption (RSA)

• Key pair generation
• Encryption/decryption
• Digital signatures (PKCS1, PSS padding)
• Signature verification

Elliptic Curve Cryptography (ECC)

• Key pair generation (secp256r1, secp384r1, secp521r1, secp224r1, brainpoolP256r1, brainpoolP384r1, brainpoolP512r1)
• ECDSA signing and verification

Edwards-curve Digital Signature Algorithm (EdDSA)

• Ed25519 key pair generation, signing, and verification

X25519 Key Exchange

• Key pair generation
• Shared secret derivation

secp256k1 (Bitcoin/Ethereum compatible)

• Key pair generation, signing, and verification

Additional Hash Functions

• SHAKE128, SHAKE256 (extendable output functions)
• Whirlpool hash function

Additional Block Ciphers

• Blowfish encryption/decryption
• Camellia encryption/decryption

Key Derivation Functions

• PBKDF2 with configurable parameters
• HKDF (HMAC-based Key Derivation Function)
• scrypt with configurable cost parameters
• bcrypt with salt rounds
• Argon2 (Argon2i, Argon2d, Argon2id)
• Balloon hashing

Message Authentication Codes (MAC)

• HMAC with SHA-256, SHA-384, SHA-512
• CMAC (Cipher-based Message Authentication Code)
• Poly1305
• GMAC (Galois Message Authentication Code)
• SipHash
• UMAC, VMAC
• SM3 MAC

Diffie-Hellman Key Exchange

• Key pair generation
• Shared secret computation

Random Number Generation

• Cryptographically secure random bytes

Certificate Generation

• Self-signed X.509 certificates

Installation

1. Install Node.js 18 or higher
2. Clone this repository
3. Run npm install
4. Run npm run build

Usage

The server communicates via stdio and can be used with any MCP-compatible client.

With VS Code (GitHub Copilot)

The server is automatically configured in .vscode/mcp.json for use with VS Code.

Manual Usage

npm run build
npm start

Security Note

This server provides powerful cryptographic tools. Use responsibly and ensure proper key management and security practices in your applications.

License

MIT