The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3!

Cryptography API for Python

gcrypter app-site & web-API

Official Bitcoin Luminary Repository

A compact API and implementation of abelian group algebra commonly used in asymmetric cryptography, fully written in C#.

Cryptothon is Encryption and Decryption app made with Python and Tkinter.

A simple Python library implementing cryptographic modes of operation