Crate ruscrypt

RusCrypt - Lightning-fast cryptography toolkit

RusCrypt is a comprehensive cryptography library and CLI tool built with Rust, featuring:

• Classical ciphers: Caesar, Vigenère, Playfair, Rail Fence
• Stream ciphers: RC4
• Block ciphers: AES (128/192/256-bit), DES
• Asymmetric encryption: RSA, Diffie-Hellman key exchange
• Hash functions: MD5, SHA-1, SHA-256

Library Usage

use ruscrypt::classical::caesar;
use ruscrypt::hash::sha256;

// Caesar cipher encryption
let encrypted = caesar::encrypt("Hello World", 3).unwrap();
assert_eq!(encrypted, "Khoor Zruog");

// SHA-256 hashing
let hash = sha256::hash("password").unwrap();
println!("SHA-256: {}", hash);

CLI Usage

Install the binary:

cargo install ruscrypt

Use the CLI:

# Encrypt with Caesar cipher
ruscrypt encrypt --caesar

# Hash with SHA-256
ruscrypt hash --sha256

# Key exchange with Diffie-Hellman
ruscrypt exchange --dh

Security Warning

⚠️ Important: This library is designed for educational purposes and experimentation. Some algorithms (RC4, DES, MD5, SHA-1, classical ciphers) are not cryptographically secure for modern use. For production applications, use AES-256 and RSA with appropriate key sizes.

Features

• Zero dependencies for core crypto algorithms (implementations from scratch)
• Memory safe - leverages Rust’s ownership system
• Fast execution - optimized for performance
• Educational focus - clean, readable implementations
• CLI and library - use as a command-line tool or integrate into your project

Re-exports

pub use asym::*;

pub use block::*;

pub use classical::*;

pub use hash::*;

pub use stream::*;

Modules

asym

Asymmetric cryptography (RSA, Diffie-Hellman)

block

Block cipher implementations (AES, DES)

classical

Classical cipher implementations (Caesar, Vigenère, Playfair, Rail Fence)

cli

Command Line Interface Module

dispatcher

Command Dispatcher Module

hash

Cryptographic hash functions (MD5, SHA-1, SHA-256)

interactive

Interactive User Input Module

stream

Stream cipher implementations (RC4)

utils

Utility Functions for Cryptographic Operations

Constants

VERSION

Library version information

Functions

quick_example

Quick example demonstrating basic library usage

version

Get the current library version