RSA Rust

RSA Rust is a command-line interface (CLI) tool for generating RSA key pairs and encrypting/decrypting messages using the RSA algorithm. This project is ongoing, and future updates will include support for larger numbers.

Table of Contents

• Installation
• Usage
• Commands
  • GenKeys
  • EncryptMessage
  • DecryptMessage
• License

Installation

To use this tool, you need to have Rust installed on your system. You can install Rust by following the instructions at rust-lang.org.

Clone this repository and build the project:

git clone https://github.com/yourusername/rsa_rust.git
cd rsa_rust
cargo build --release

Usage

Run the CLI tool with the desired command:

cargo run -- <COMMAND>

Commands

GenKeys

Generates an RSA key pair.

Usage:

cargo run -- gen-keys

EncryptMessage

Encrypts a message using a public key.

Usage:

cargo run -- encrypt-message <MESSAGE> <PUBLIC_KEY_FILE>

Example:

cargo run -- encrypt-message "Hello, World!" public_key.txt

DecryptMessage

Decrypts a message using a private key and prime numbers.

Usage:

cargo run -- decrypt-message <ENCODED_MESSAGE_FILE> <PRIVATE_KEY_FILE> <PRIME_FILE>

Example:

cargo run -- decrypt-message encoded.txt private_key.txt primes.txt

License

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

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File Descriptions

src/main.rs

The entry point for the CLI tool. It defines the SubCommand enum for the available commands and their arguments. The main function parses the command-line arguments and calls the appropriate functions in the rsa_algorithm module.

src/lib.rs

The main library file that implements the RSA key generation, encryption, and decryption functions. It defines the following functions:

• gen_keys: Generates RSA key pairs.
• encrpyt: Encrypts a message using a public key.
• decrpyt: Decrypts a message using a private key and primes.

src/encrypt.rs

Contains the implementation of the encrypt function, which encrypts a message using the RSA algorithm.

src/decrypt.rs

Contains the implementation of the decrpyt function, which decrypts a message using the RSA algorithm and the Chinese Remainder Theorem (CRT).

Notes

• Ensure that the public key, private key, and prime files are in the correct format for the encryption and decryption functions to work correctly.
• The encrpyt and decrpyt functions create encoded.txt and decoded.txt files respectively, which contain the encrypted and decrypted messages.

Feel free to contribute to this project by submitting issues or pull requests on the GitHub repository.