Yubikey integration - Includes Prototypes for low-level Yubikey OTP functions witten by Simon Josefsson <simon@josefsson.org>. Copyright (c) 2006, 2007, 2008, 2009 Yubico AB All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitt...

Z80-Ruby is a Ruby binding for the Zilog Z80 CPU emulator (https://github.com/redcode/Z80). It is ideal for analysis, hacking, testing and debugging. All from the comfort of Ruby.

A fast and very smart autolinking library that acts as a drop-in replacement for Rails `auto_link` This is now a significant departure from the base gem.

Use steganography to hide and encrypt data inside JPG, PNG, and BMP files.

Ruby wrapper for Facebook Zstandard library

A Zlib drop-in replacement implementing Zstandard compression algorithm

Ruby binding for @drewcsillag twofish implementation

A ZRE library for Ruby. This is a Ruby (MRI) binding for the Zyre library for reliable group messaging over local area networks, an implementation of the ZeroMQ Realtime Exchange protocol.