lib-crypto

Overview

lib-crypto provides quantum-resistant cryptographic primitives and operations for secure communications, digital signatures, key management, and privacy-preserving protocols. Built with production-ready implementations of NIST-standardized post-quantum algorithms.

Core Features

• Post-Quantum Cryptography: CRYSTALS-Dilithium signatures and CRYSTALS-Kyber key encapsulation
• Classical Compatibility: Ed25519 signatures and Curve25519 operations
• Symmetric Encryption: ChaCha20-Poly1305 AEAD
• Cryptographic Hashing: BLAKE3 and SHA-3 family
• Advanced Signatures: Ring signatures for anonymity and multi-signatures for shared control
• Secure Memory: Automatic zeroization of sensitive data
• Zero-Knowledge Integration: Trait interfaces for ZK proof systems

Quick Start

use lib_crypto::KeyPair;

// Generate quantum-resistant keypair
let keypair = KeyPair::generate()?;

// Sign and verify
let message = b"Hello, post-quantum world!";
let signature = keypair.sign(message)?;
assert!(keypair.verify(&signature, message)?);

// Encrypt and decrypt
let plaintext = b"Secret message";
let ciphertext = keypair.encrypt(plaintext, b"metadata")?;
let decrypted = keypair.decrypt(&ciphertext, b"metadata")?;

Architecture

src/
├── types/           # Core cryptographic types
├── keypair/         # Key generation and operations
├── post_quantum/    # CRYSTALS-Dilithium & Kyber
├── classical/       # Ed25519 & Curve25519
├── symmetric/       # Symmetric encryption
├── hashing/         # Cryptographic hashing
├── advanced/        # Ring & multi-signatures
├── random/          # Secure randomness
├── verification/    # Signature verification
└── zk_integration/  # Zero-knowledge interfaces

Building

cargo build --release
cargo test
cargo bench

Security

This library implements NIST-standardized post-quantum cryptographic algorithms designed to resist both classical and quantum computer attacks. All implementations include proper memory management and side-channel protections.

Documentation

Comprehensive documentation and usage examples will be provided in the upcoming crypto documentation package.