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MD5 project is a simple example of using ComputeHash method to create MD5 hash value from a file given in argument. It's written in C#. Also available at http://code.google.com/p/md5-computation-program/
Koloboke aims to replace the standard Java collections and streams with more efficient implementations. The current version of Koloboke focuses on replacing java.util.HashSet and java.util.HashMap. It provides a complete set of primitive type implementations for each collection. Its able to avoid the expensive boxing/unboxing of primitives and saves memory for boxed primitive objects. It is the fastest and the most memory efficient library implementing hash maps and sets.
Rabbit and lot more cryptographic algorithms.
Bouncy Castle Crypto APIs is a lightweight cryptography API for Java and CSharp. It has provider for the Java Cryptography Extension and the Java Cryptography Architecture. It supports TLS, PKCS7, PKCS12, OpenPGP, S/MIME, OCSP, TSP, CMP, Extended Access Control, ASN and lot more.
pyhash is a python non-cryptographic hash library. It provide several common hash algorithms with C/C++ implementation for performance. pyhash support the following hash algorithms FNV (Fowler-Noll-Vo) hash, MurmurHash 1/2/3, lookup3, SuperFastHash.
Hypertable is based on Google's Bigtable Design, which is a proven scalable design that powers hundreds of Google services. Many of the current scalable NoSQL database offerings are based on a hash table design which means that the data they manage is not kept physically ordered. Hypertable keeps data physically sorted by a primary key and it is well suited for Analytics.
Development of this project has been moved to https://github.com/jessek/hashdeep. This site has been left for historical purposes ONLY. Please visit the GitHub site for current development. Computes the MD5, SHA-1, SHA-256, Tiger, or Whirlpool message digest for any number of files while optionally recursively digging through the directory structure. Can also match input files against lists of known hashes in a variety of formats.
The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.