cryptography

OpenSSL RSA and AES cryptography, RSA signing and verification & more.

Getting Started

These instructions will get you a copy of the project up and running on your local machine.

Prerequisites

This project is intended for Linux operating systems. You need OpenSSL library to be installed on your machine. Type this command in your terminal:

openssl version

If you see something similar to this: OpenSSL 1.1.1g 21 Apr 2020, it means that you have OpenSSL installed. Otherwise checkout OpenSSL for details about installation process.

Installing

You need a copy of source code. Clone the repository using git:

git clone https://github.com/m3sserschmitt/cryptography.git

OR

Download the .zip file and extract it.

Change the directory to newly downloaded source code:

cd /path/to/local/repository

Run cmake to create Makefiles:

cmake -B./build.

cd build

Now library can be compiled using make:

make all

Last command will compile both static and shared library.

Also you can checkout ./tests/main.cc file for some examples on basic encryption & decryption with AES or RSA, RSA signing & verification and base64 encoding & decoding. You need to install the library on you system in order to compile this.

You can install the library on your system using debian packages available into last release.

Authors

• Romulus-Emanuel Ruja <[email protected]>

License

This project is licensed under the MIT License. Feel free to copy, modify and distribute it - see the LICENSE file for details.

Disclaimer

This code is just a proof of concept of using OpenSSL for basic cryptography.

Changelog

• New in version v6.0.1 (October 2021):

  • Bugs fixed

• New in version v6.0.0 (August 2021):

  • Library reorganized into CRYPTO namespace.
  • No backward compatible.

• New in version v5.0.1 (July 2021):

  • Added function for RSA keys generation.
  • Added function for RSA keys initialization from PEM files.
  • Added documentation into source code.

• New in version v5.0.0 (March 2021):

  • All code was rewritten.
  • AES, RSA (encrypt, decrypt, sign, verify) and base64 available.
  • Not backward compatible.

• New in version v4.0.5 (November 2020):

  • Code refactoring and bugs fixed.
  • This release it's not backward compatible with previous releases.