Science

Science, engineering, and mathematics — biology, chemistry, physics, astronomy, earth sciences, social sciences, and technology research. A curated gateway to academic and professional scientific resources.

57129 resources

Science/Math/Applications/Communication_Theory/Cryptography/Algorithms/Ciphers

Back

Ciphers resources

Serpent Block Cipher Homepage

Describes the 128-bit block cipher designed to replace DES. It was a finalist in the AES competition.

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.

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. Source code is not available here.

ISAAC - a fast cryptographic random number generator

A stream cipher developed by Robert Jenkins. It was inspired by RC4.

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.

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.

CS2 Block Cipher

This PDF document describes to CS2 block cipher developed by Tom St Denis. CS2 is based on the CS cipher developed by Serge Vaudenay and takes advantage of work St Denis has done on the pseudo-Hadamard transform. Source code is not included, but test vectors are.

HC-256 Stream Cipher

HC-256 is a stream cipher developed by Hongjun Wu at the Institute for Infocomm Research in Singapore. It uses a very large state data set which it updates and reads from pseudo-randomly. It seems similar in basic design to SN3 and also borrows some ideas from SHA-256. C source code is included in this PDF document.

Noekeon block cipher

A block cipher with a block length and a key length of 128 bits.

Camellia

Information about the block cipher jointly developed by NTT and Mitsubishi Electric in Japan in 2000. C source code is also provided.

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.

Zodiac Killer Ciphers

The Zodiac Killer terrorized the San Francisco Bay area in the 1960s and 70s and claimed to have killed over 30 people. This site discusses the unsolved cipher messages linked with the killings.