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mcp-cryptography

mcp-cryptography

Local
github.com/daedalusSecurity0Updated 27w ago
Repository

About mcp-cryptography

mcp-cryptography is an MCP server that makes common cryptographic operations available to MCP clients. Its tools cover key generation, encryption, signatures, hashing, key derivation, certificates, and random data.

Key features

  1. 01Symmetric and RSA key generation
  2. 02Fernet and AES encryption
  3. 03RSA encryption and signatures
  4. 04SHA hashing and HMAC
  5. 05PBKDF2 and scrypt derivation
  6. 06X.509 certificate and random data tools

Use cases

  1. 01Generate keys for application workflows
  2. 02Encrypt or decrypt data with Fernet or AES
  3. 03Create and verify RSA signatures or HMACs
  4. 04Derive keys and inspect X.509 certificates

MCP support

Exposes cryptography tools to MCP clients, including key generation, encryption, signing, hashing, key derivation, certificate handling, and random data generation.

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config
{
  "mcpServers": {
    "daedalus-mcp-cryptography": {
      "command": "uvx",
      "args": [
        "mcp-cryptography"
      ]
    }
  }
}
Run commanduvx mcp-cryptography

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages
pypimcp-cryptography0.1.1

Tools

22

Saved tool list · updated 2w ago

This tool takes no parameters.

Details

From the project README

mcp-cryptography

MCP server exposing cryptography library functionality.

PyPI Python Ruff

mcp-name: io.github.daedalus/mcp-cryptography

Install

pip install mcp-cryptography

Usage

from mcp_cryptography import mcp

# Run the MCP server
if __name__ == "__main__":
    mcp.run()

Available Tools

The server provides the following cryptographic tools:

Key Generation
  • generate_symmetric_key - Generate a Fernet symmetric key
  • generate_rsa_key - Generate an RSA key pair
  • generate_x25519_key - Generate an X25519 key pair
Symmetric Encryption
  • fernet_encrypt / fernet_decrypt - Fernet encryption
  • aes_encrypt / aes_decrypt - AES encryption (CBC/GCM modes)
Asymmetric Encryption
  • rsa_encrypt / rsa_decrypt - RSA OAEP encryption
  • rsa_sign / rsa_verify - RSA digital signatures
Hashing
  • hash_sha256 - SHA-256 hash
  • hash_sha512 - SHA-512 hash
  • hash_sha1 - SHA-1 hash
HMAC
  • hmac_sign - Generate HMAC
  • hmac_verify - Verify HMAC
Key Derivation
  • pbkdf2_derive - PBKDF2 key derivation
  • scrypt_derive - Scrypt key derivation
X.509 Certificates
  • generate_self_signed_cert - Generate self-signed certificate
  • parse_certificate - Parse X.509 certificate
Utilities
  • generate_random_bytes - Generate random bytes
  • generate_random_base64 - Generate random base64 bytes

Development

git clone https://github.com/daedalus/mcp-cryptography.git
cd mcp-cryptography
pip install -e ".[test]"

# run tests
pytest

# format
ruff format src/ tests/

# lint
ruff check src/ tests/

# type check
mcp_cryptography src/

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