og_rsa

Implementation of the original RSA algorithm in Rust.

MADE FOR LEARNING AND FUN. SHOULD NOT BE USED IN PRODUCTION.

og_rsa is pretty much a direct implementation of the original RSA paper, hence the name.

Usage

I am using Cargo as my build system. Clone this repository and run a cargo build.

NOTE: og_rsa can currently handle only small(< ~128 byte) files.

Key generation

The first step is to generate a public/private key pair using ./rsa generate. This will generate a pair of files: key (private key) and key.pub (public key).

Encryption

./rsa encrypt -k key.pub -f a-test-file.txt

This will generate a file with the same name as the one being encrypted but with .enc appended. In the above example the file generated will be a-test-file.txt.enc.

Decryption

./rsa encrypt -k key.pub -f a-test-file.txt.enc

This will generate a file with the same name as the one being decrypted but with .dec appended. In the above example the file generated will be a-test-file.txt.enc.dec.

./rsa

RSA Encryption Algorithm 0.1
Rohit Sarkar
RSA implementation in Rust

USAGE:
    rsa [SUBCOMMAND]

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

SUBCOMMANDS:
    decrypt     Decrypts a file encrypted with the RSA algorithm
    encrypt     Encrypts a plain text file using the RSA algorithm
    generate    Generates a pair of public and private keys (key and key.pub)
    help        Prints this message or the help of the given subcommand(s)

TODO

• Add support for arbitrary sized files.
• Tests
• Padding
• Make things configurable (number of bits in the key, key file name, public key suffix etc.)
• Better error handling