CurvyStreamCrypt

Overview

CurvyStreamCrypt is a hybrid encryption system that combines my BLAKE3-based StreamCrypt stream cipher with elliptic curve cryptography (ECC) using the brainpoolP256r1 curve. Designed for end-to-end encryption, it provides a secure and efficient method for encrypting and decrypting messages.

Features

• Utilizes BLAKE3 for fast and secure key derivation in the stream cipher component.
• Employs elliptic curve cryptography (ECC) on the brainpoolP256r1 curve for generating private and public keys, ensuring robust asymmetric encryption.
• Offers point compression and key derivation functionalities, enhancing efficiency in key storage and exchange.
• Designed for secure end-to-end encryption, making it suitable for confidential communications.

Requirements

• Python 3.6 or above
• NumMaster
• TinyEC
• NumPy
• blake3

Installation

To use CurvyStreamCrypt, ensure you have Python installed on your system. Then, install the required Python packages using pip:

pip install nummaster tinyec numpy blake3

Usage

Key Generation

Generate a private key and its corresponding public key:

from CurvyStreamCrypt import create_private_key, create_public_key

privKey = create_private_key()
pubKey = create_public_key(privKey)

Encrypting a Message

Encrypt a message using the public key:

encrypted_msg = encrypt(b'Your message here', pubKey)

Decrypting a Message

Decrypt the message using the private key:

decrypted_msg = decrypt(encrypted_msg, privKey)

Example

Here's a quick example demonstrating how to encrypt and decrypt a message:

privKey = create_private_key()
pubKey = create_public_key(privKey)

emsg = encrypt(b'Hello, World!', pubKey)
print(f'Encrypted Message: {emsg}')

dmsg = decrypt(emsg, privKey)
print(f'Decrypted Message: {dmsg}')

Security Notes

• Always keep your private keys secure and never share them.
• Ensure secure storage and handling of all cryptographic material.