mind-paillier-voting-sdk

mind-paillier-voting-sdk is a TypeScript library designed for secure and privacy-preserving voting systems. The package leverages Fully Homomorphic Encryption (FHE) and Zero-Knowledge (ZK) proofs to generate keys, encrypt votes, and verify proofs, ensuring the confidentiality and integrity of the voting process.

Features

• Key Generation: Easily generate public and private FHE keys.
• Serialization Utilities: Serialize and deserialize keys for storage or transmission.
• Encryption & Decryption: Encrypt numbers (votes) and decrypt aggregated results.
• Zero-Knowledge Proofs: Create and verify ZK proofs to ensure vote validity.

Installation

Install the package via npm:

npm install mind-paillier-voting-sdk

API Overview

Key Generation

• generateKeyPair(bitLength): Asynchronously generates a pair of FHE keys (public and private).

Key Serialization

• serializePublicKey(publicKey): Serializes the public key to a string.
• deserializePublicKey(serializedKey): Converts a serialized public key string back to its object form.
• serializePrivateKey(privateKey): Serializes the private key.
• deserializePrivateKey(serializedKey, publicKey): Deserializes the private key with reference to the public key.

Voting Operations

• Voter(bits, publicKey): Creates a new voter instance. The bits parameter defines the number range.
• encryptNumber(number): Encrypts a vote and returns a set of proofs.
• Verifier(publicKey): Creates a new verifier instance.
• verifyNumber(proofs, proofValidTimeInMinutes): Verifies the ZK proofs to ensure the vote's validity.

Usage

For sample usage and example code, please refer to the examples/demo.ts file in this repository.

License

This project is licensed under the MIT License. See the LICENSE file for details.