1. RC6 Home at RSA - Block cipher proposed by RSA as an AES candidate. 2. AES Algorithm (Rijndael) Information - This is NIST's home page for the Rijndael block cipher, now the Advanced Encryption Standard (AES). It has links to the specification and source code. 3. Anubis Block Cipher web site - Describes the 128-bit variable-length key NESSIE candidate. The C source code is available here. 4. BMGL: Synchronous Key-stream Generator - Describes the BMGL stream cipher developed by Johan Hastad of the Royal Inst. of Technology and Mats Naslund of Ericsson Research in Sweden. BMGL, like Snow2, uses features of the Rijndael cipher. This is a PDF file. Source code is not available here. 5. Caesar Shift Cipher - Shift Cipher description and examples. 6. Camellia Home Page - Documents the Camellia block cipher jointly developed by NTT and Mitsubishi Electric in Japan in 2000. C source code is also provided. 7. CAST 128 Block Cipher - A text-file specification for CAST-128, a freely available 128-bit block cipher. 8. Cryptofile - Open source cryptography info including AES cipher code, public domain source for rijndael, hash cracking and general notes on the Linux crypto loopback file system. 9. CSpears Ciphers Homepage - Contains cipher source code and technical explanations for SEAL, Skipjack and other well known ciphers. 10. FastFlex : A Secure Cryptographic Function - Sourceforge project for FastFlex, a suite of hash functions and stream ciphers. Links to documentation and source code. 11. German Enigma Cipher - Description and examples of the enigma cipher. 12. Helix Stream Cipher - This PDF document describes the Helix stream cipher, devised by Niels Ferguson, Doug Whiting, Bruce Schneier, John Kelsey, Stefan Lucks, and Tadayoshi Kohno. The cipher produces a MAC for every plaintext it encrypts. Source code is not included in this document, but Qualcomm Australia has implemented Helix in C. 13. Hiji Bij Bij - Describes a stream cipher devised by Palash Sarkar and the Cryptology Research Group at the India Statistical Institute. Like many new stream ciphers, it has two parts to its state, one part updated linearly and one part updated non-linearly. The linear part is implemented as cellular automata. The cipher can run in a self-synchronizing mode. The C source code is in this postscript document. 14. IBM's MARS Block Cipher. NEW! - The company's AES proposal using 128 bit blocks. Contains descriptions, pseudocode and test vectors. 15. ISAAC - a fast cryptographic random number generator - A stream cipher developed by Robert Jenkins. It was inspired by RC4. 16. JavaScript DES Implementation - The Data Encryption Standard, supporting ECB and CBC modes. Also has a function for Triple DES. Includes an explanation of how the program works and source code. 17. Khazad Block Cipher web site - Describes the 64-bit block cipher, 128-bit key NESSIE finalist. 18. Konton2: A Stream Cipher - Konton2 is a stream cipher which does not resemble RC4 and does not use shift registers. The C source code for Konton2 is provided. 19. Noekeon block cipher NEW! - A block cipher with a block length and a key length of 128 bits. 20. QUALCOMM Australia's Home Page - Has information about QUALCOMM Australia's ciphers. In particular, links are provided to a "design paper" and source code for the "t class" of SOBER stream ciphers. 21. Rabbit Stream Cipher - The Rabbit stream cipher was developed by CRYPTICO A/S in Denmark. It runs in synchronous mode, uses a 128-bit key, and 513 bits of state data. This PDF file includes C source code for Rabbit. 22. Rail Fence Cipher - Description and examples of rail fence ciphers. 23. Scream: A Software Efficient Stream Cipher - Describes the Scream stream cipher developed at IBM by Shai Halevi, Don Coppersmith, and Charanjit Jutla. Scream is based on SEAL. This is a .pdf file. Source code is not available here. 24. Serpent Block Cipher Homepage - Describes the 128-bit block cipher designed to replace DES. It was a finalist in the AES competition. 25. SN3 Stream Cipher - SN3 is a stream cipher designed by Simeon Maltchev. Somewhat like ISAAC, it uses three constantly evolving blocks of state data which update each other. The C source code for SN3 is also provided. 26. TEA - a Tiny Encryption Algorithm - TEA is a very small, efficient algorithm offering a moderate level of security 27. The Blowfish Encryption Algorithm - A freely available symmetric block cipher designed by Bruce Schneier as a drop-in replacement for DES or IDEA. Allows variable-length keys up to 448 bits. 28. The CARACACHS Stream Cipher - Contains source code in C for this stream cipher which uses 160 to 2048-bit keys. Short keys are fast on 32-bit processors. 29. The Mugi Stream Cipher - Describes the MUGI stream cipher developed at Hitachi. MUGI is similar to, and based on, Panama. The link here is to the English home page of the MUGI site. Source code is not available at this site. 30. The Snow Stream Cipher - Describes the Snow stream cipher: both Snow 1.0 submitted to the NESSIE project and Snow 2.0. Snow is the work of Patrik Ekdahl and Thomas Johansson of the I.T. Dept. at Lund Univ., Sweden. The C source code for Snow is also provided. 31. Twofish - A freely available 128-bit block cipher designed by Counterpane Systems (Bruce Schneier et al.). 32. VMPC function and stream cipher - Describes the VMPC one-way function and a stream cipher based on it, designed by Bartosz Zoltak. Pseudo code and test-vectors are available here. The algorithm is similar to RC4 and VERY simple.

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