A Deque is a queue type data structure that allows efficient insertion and deletion from both ends of the queue. This implementation wrapps the standard C++ structure of the same name.

An implementation of the Diffie Hellman key exchange protocol

Ruby C extension to access temperature and humidity reading taken by the DHT-XX type sensors, see (http://www.adafruit.com/products/385)

The Diff Match and Patch libraries offer robust algorithms to perform the operations required for synchronizing plain text.

DiffSet contains a collection of data structures optimized to perform partial set subtractions

Ruby native extension for base32 encoding and decoding.

BLAKE2b is a cryptographic hash function faster than MD5, SHA-1, SHA-2, and SHA-3 for 64-bit systems.

With marshalling of digest objects, it is possible to compute the digests over several executions by storing the marshalled object on file or database, this is handy for computing digests for large files that comes in parts.

A KangarooTwelve library that utilizes the XKCP package and can be optionally optimized during compile-time based on a target. It produces implementation classes that work on top of Digest::Base and conform with how Digest classes work.

Digest::SipHash is a class of message digest use algorithm SipHash.

Digest::StringBuffer is a class that subset of Digest::Instance.

Native implementation of Dijkstra algorithm for finding the shortest path between two vertices in a large, sparse graphs. Underlying algorithm is implemented in C using a priority queue. Edges are represented using linked lists rather than an adjacency matrix to reduce memory footprint when operating on very large graphs where the average number of edges between nodes is relatively small (e.g. < 1/10 the number of nodes). See https://en.wikipedia.org/wiki/Dijkstra's_algorithm for additional information.

To calculate the directory size

Efficient test generation strategies

Implements the DataObjects API for Derby

Implements the DataObjects API for H2

Implements the DataObjects API for Hsqldb

Provides JDBC support for usage in DO drivers for JRuby

Implements the DataObjects API for OpenEdge

Implements the DataObjects API for Microsoft SQL Server