bcrypt() is a sophisticated and secure hash algorithm designed by The OpenBSD project for hashing passwords. bcrypt-ruby provides a simple, humane wrapper for safely handling passwords.

This is a Ruby interface to Berkeley DB 1.85 and 1.86.

Native implementation of Benchmark with much better performance.

Bencode encoder/decoder

A fast Gherkin lexer/parser based on the Ragel State Machine Compiler.

Bestliner is a Ruby wrapper around bestline, a C library for interactive pseudoteletypewriter command sessions using ANSI Standard X3.64 control sequences. Bestliner supports Emacs-style editing shortcuts, a searchable history, completion and hint support via callbacks and UTF-8 editing.

It provides a math module for multiple-precision arithmetic.

Gadgets for bioinformatics

A fast FASTA/FASTQ parser based on kseq.h by Heng Li

A fast C-based Bitset. It supports the standard set operations as well as operations you may expect on bit arrays. (popcount, for instance)

Fast (native) bitwise operations for Ruby, in addition to the ones provided by the standard library

Utility methods for manipulating bits within Integer.

这是一个验证码生成器。基于rucaptcha。本人只是将他的源码拉下来。为我的网站进行适配。因为我不使用sesion.id

A bluetooth library for ruby

Binding of caller: obtain a caller's binding.

BoneKit is a hardware interface toolkit for the beaglebone. It enables access from ruby to hardware features such as: Digital I/O, Interrupts, ADC, PWM, I2C and SPI.

This is a Ruby gem to calculate statistical properties of various distributions by using boost::math::distributions.

Boot large ruby/rails apps faster

instantiates other instances of NilClass

Draws terminal ascii boxes, and boxes within boxes