Gourt > Science > Math > Applications > Communication Theory > Cryptography > Algorithms > Ciphers
In cryptography, encryption is the process of obscuring information to make it unreadable without special knowledge. While encryption has been used to protect communications for centuries, only organizations and individuals with an extraordinary need for secrecy had made use of it. In the mid-1970s, strong encryption emerged from the sole preserve of secretive government agencies into the public domain, and is now employed in protecting widely-used systems, such as Internet e-commerce, mobile telephone networks and bank automatic teller machines.
Encryption can be used to ensure secrecy, but other techniques are still needed to make communications secure, particularly to verify the integrity and authenticity of a message; for example, a message authentication code (MAC) or digital signatures. Another consideration is protection against traffic analysis.
Encryption or software code obfuscation is also used in software copy protection against reverse engineering, unauthorized application analysis, cracks and software piracy used in different encryption or obfuscating software
More on [ Encryption ]
Differential Equations with Maple, 3rd Edition
Brian R. Hunt, Ronald L. Lipsman, John E. Osborn, Jonathan M. Rosenberg Mon, 29 Sep 2008 04:00:00 -0000
Read More...
Computational Intelligence and Feature Selection: Rough and Fuzzy Approaches
Richard Jensen, Qiang Shen Mon, 29 Sep 2008 04:00:00 -0000
Computational Intelligence and Feature Selection provides a high level audience with both the background and fundamental ideas behind feature selection with an emphasis on those techniques based on rough and fuzzy sets, including their hybridizations. It introduces set theory, fuzzy set theory, rough set theory, and fuzzy-rough set theory, and illustrates the power and efficacy of the feature selection described through the use of real-world applications Read More...
Statistical Methods in e-Commerce Research
Wolfgang Jank, Galit Shmueli Mon, 29 Sep 2008 04:00:00 -0000
This groundbreaking book introduces the application of statistical methodologies to e-Commerce data With the expanding presence of technology in today's economic market, the use of the Internet for buying, selling, and investing is growing more popular and public in nature. Statistical Methods in e-Commerce Research is the first book of its kind to focus on the statistical models and methods that are essential in order to analyze information from Read More...
Fundamentals of Quality Control and Improvement, Student Solutions Manual, 3rd Edition
Amit Mitra Mon, 22 Sep 2008 04:00:00 -0000
Incorporating modern ideas, methods, and philosophies of quality management, Fundamentals of Quality Control and Improvement, Third Edition presents a quantitative approach to management-oriented techniques and enforces the integration of statistical concepts into quality assurance methods. Utilizing a sound theoretical foundation and illustrating procedural techniques through real-world examples, Read More...
Handbook of Mathematical Relations in Particulate Materials Processing
Randall M. German Tue, 16 Sep 2008 04:00:00 -0000
Handbook of Mathematical Relations in Particulate Materials Processing goes beyond the traditional barriers of only one material class by covering the major areas in ceramics, cemented carbides, powder metallurgy, and particulate materials. Suited for quick reference with stand alone definitions. It is the perfect complement to existing textbooks since it will simply cut to the key relations. Read More...
Multivariate Methods in Chromatography: A Practical Guide
Tibor Cserhati Tue, 09 Sep 2008 04:00:00 -0000
A comprehensive, compilation and evaluation of the newest results in the field of enumerate evaluation of chromatographic data Aimed at the practicing professional, researchers and advanced students working in this area Special emphasis on practical applications While the principles of chromatography and multivariate mathematical-statistical methods are discussed separately, the book focuses on their interconnection. Read More...
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.
Anubis Block Cipher web site - Describes the 128-bit variable-length key NESSIE candidate. The C source code is available here.
Meta Description: [ The Anubis Block Cipher Home Page ]
500
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.
Caesar Shift Cipher - Shift Cipher description and examples.
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.
CAST 128 Block Cipher - A text-file specification for CAST-128, a freely available 128-bit block cipher.
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.
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.
CSpears Ciphers Homepage - Contains cipher source code and technical explanations for SEAL, Skipjack and other well known ciphers.
FastFlex : A Secure Cryptographic Function - Sourceforge project for FastFlex, a suite of hash functions and stream ciphers. Links to documentation and source code.
German Enigma Cipher - Descripton and examples of the enigma cipher.
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.
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.
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.
IBM's MARS Block Cipher. - The company's AES proposal using 128 bit blocks. Contains descriptions, pseudocode and test vectors.
ISAAC - a fast cryptographic random number generator - A stream cipher developed by Robert Jenkins. It was inspired by RC4.
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.
Khazad Block Cipher web site - Describes the 64-bit block cipher, 128-bit key NESSIE finalist.
Meta Description: [ The Khazad Block Cipher Home Page ]
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.
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.
Rail Fence Cipher - Description and examples of rail fence ciphers.
RC6 Home at RSA - Block cipher proposed by RSA as an AES candidate.
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.
Serpent Block Cipher Homepage - Describes the 128-bit block cipher designed to replace DES. It was a finalist in the AES competition.
Sosemanuk Stream Cipher - Sosemanuk borrows features of the Snow stream cipher and the Serpent block cipher. The C source code for the cipher is available from the Ecrypt site.
TEA - a Tiny Encryption Algorithm - TEA is a very small, efficient algorithm offering a moderate level of security
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.
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.
Meta Description: [ The CARACACHS crypto cipher with 256-bit keys ]
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.
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.
Twofish - A freely available 128-bit block cipher designed by Counterpane Systems (Bruce Schneier et al.).
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.
Meta Description: [ encryption ]
| Teknyc (Rock Steady Crew), $7 Crew, Groundscatter, Knu Funk, Labratz, Jakarta Breakin, Radikal Forze & Floor Techniques ... | |
| Next Video | |
