 Entrust Dev-Net - http://www.entrust.com/pki/toolkits.htm A variety of tools to add PKI functionality to your application. |
 Emacs Cryptographic Library and Tools - http://web.mit.edu/thouis/www/ecrypto.html Includes code for IDEA, Blowfish, SHA-1, MD5, RC16 (RC4 extension), an initial implementation of DES and a few related toys. |
 Snapcrypt - Cryptography Algorithms - http://www.snapshield.com/Products_licensing_fs.html A library for the TMS320C54x DSP, includes algorithms for symmetric block ciphers, one-way hash functions, public key encryption and digital signature. |
 CTC - http://www.bifroest.demon.co.uk/ctc/ CTClib (PGP-interoperable ANSI C encryption software library) and CTCjava (Java crypto components and application). |
 The source code of the 128-bit PC1 cipher algorithm - http://membres.lycos.fr/pc1/ In C, Delphi, Java, Perl and Visual Basic. |
 Python Cryptography Toolkit - http://www.amk.ca/python/code/crypto A collection of cryptographic algorithms and protocols, implemented for use from Python. |
 Network Security Services - http://www.mozilla.org/projects/security/pki/nss/ Mozilla's NSS, is a set of libraries designed to support cross-platform development of security-enabled server applications. |
 RSA MD5 Visual C++ - http://www.langfine.com/rsa_md5.htm An implementation of the message digest algorithm. Includes a performance measurement facility. |
 FastCRC Library - http://www.slavasoft.com/fastcrc/ Optimized implementation of CRC32, CRC16 and CRC16C (CRC-CCITT) checksum algorithms. With examples in C/C++ and Visual Basic. |
 SlavaSoft QuickHash Library - http://www.slavasoft.com/quickhash/ Add hash (MD2, MD5, SHA-1, SHA-2, RIPEMD-160, PANAMA, TIGER), checksum (CRC32, ADLER32) and HMAC (HMAC-MD5, HMAC-SHA1, HMAC-SHA256, HMAC-SHA384, HMAC-SHA512, HMAC-RIPEMD160, HMAC-PANAMA, HMAC-TIGER) calculations to your Windows apps quickly and easily. C++, commercial. |
 Applied Cryptography Code - ftp://ftp.zedz.net/pub/crypto/applied-crypto/ The code from the Applied Cryptography disk, available outside the US. |
 RC-Crypt - http://www.ricksoft.co.uk/downloads/rccrypt/rccrypt.htm Implementation of RC5 (128) in C. |
 Botan - http://botan.randombit.net/ An open-source C++ crypto library that includes block and stream ciphers, hash functions, MACs, and public key algorithms, along with an easy to use filter-based interface. |
 OpenSSL - http://www.openssl.org/ 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. |
 Punkroy and the Cypher Project - http://Punkroy.DrQue.net/Programs.html Collection of programming examples on encryption including: file encryption, steganography in images and sound, data base record encryption, and password verification. All written in Pascal, all source code available. |
 SSL++ -- C++ Wrapper arround OpenSSL library - http://www.total-knowledge.com/progs/sslpp/ SSL++ is simple C++ library encapsulating OpenSSL functionality to make it simple and easily accessible to C++ programmers. |
 MD5 Homepage (unofficial) - http://userpages.umbc.edu/~mabzug1/cs/md5/md5.html Information and implementation in various languages. |
 JavaScript Encryption Program - http://home.versatel.nl/MAvanEverdingen/Code/ Open source JavaScript implementation of the MD5 hash and RC4, AES, CSR and RSA ciphers. |
 Cryptlib Encryption Toolkit - http://www.cs.auckland.ac.nz/~pgut001/cryptlib/ A powerful security toolkit which allows even inexperienced crypto programmers to easily add encryption and authentication services to their software. |
 libmcrypt - http://mcrypt.hellug.gr/#_libmcrypt Supports the following algorithms; BLOWFISH, TWOFISH, DES, TripleDES, 3-WAY, SAFER-sk64, SAFER-sk128, SAFER+, LOKI97, GOST, RC2, RC6, MARS, IDEA, RIJNDAEL-128 (AES), RIJNDAEL-192, RIJNDAEL-256, SERPENT, CAST-128, CAST-256, ARCFOUR and WAKE. ANSI C. |
 BSAFEeay - https://www.cypherpunks.to/bsafeeay/ A free, public domain implementation of RSA Data Security's BSAFE API, using the SSLeay crypto library. |
 SoftaCrypt - http://www.softabar.com/home/content/view/44/65/ Java based implementation libraries for encryption and hash algorithms. |
 Sysepub - http://teutoburgo.web44.net/java/sysepub.html An open-source Java cipher that combines one time pad with public and private keys. |
 Hidden Field Equations (HFE) in Java - http://www.christopher-wolf.de/hfe/ A free implementation of the public key cryptography system with source code and documentation. |
 QuartzLight in Java - http://www.christopher-wolf.de/ql/ Implements the public key signature system QuartzLight in Java where QuartzLight refers to a research version of the Quartz standard. |
 DevOTechS: Huge Integer Math and Encryption Library (HIME) - http://www.devotechs.com/ A dll for implementing public and secret key encryption using RSA, AES, SHA-256. Also contains functions for prime number generation, random number generation and huge integer operations. |