RSA Encryption System

This project implements a basic RSA encryption system in Rust. It demonstrates the generation of RSA keys, encrypting and decrypting messages, and ensuring that the encrypted data can be safely converted to and from a string format using base64 encoding.

Getting Started

Install the CLI directly from crates.io:

cargo install cryptrsa

Build the project

You can also build from source by cloning the repository:

git clone https://github.com/neuralsorcerer/cryptrsa

cd cryptrsa

cargo build

Generating keys

cryptrsa gen --bits 2048 --out mykeys.json --public-out mypublic.json

You can also omit the --message flag to be prompted for input.

Encrypting a message

cryptrsa encrypt --key mypublic.json --message "hello"

Decrypting a message

cryptrsa decrypt --key mykeys.json --ciphertext <base64>

Signing a message

cryptrsa sign --key mykeys.json --message "hello" --hash

Verifying a signature

cryptrsa verify --key mypublic.json --message "hello" --signature <base64> --hash

Commands like encrypt, decrypt, sign, and verify also support --in-file and --out-file to read from or write to a file instead of STDIN or STDOUT.

Computing a public key fingerprint

cryptrsa fingerprint --key mypublic.json

License

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