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cryptography Last modified: Tuesday, March 16, 2004
The art of protecting information by transforming it (encrypting it) into an unreadable format, called cipher text. Only those who possess a secret key can decipher (or decrypt) the message into plain text. Encrypted messages can sometimes be broken by cryptanalysis, also called codebreaking, although modern cryptography techniques are virtually unbreakable. As the Internet and other forms of electronic communication become more prevalent, electronic security is becoming increasingly important. Cryptography is used to protect e-mail messages, credit card information, and corporate data. One of the most popular cryptography systems used on the Internet is Pretty Good Privacy because it's effective and free. Cryptography systems can be broadly classified into symmetric-key systems that use a single key that both the sender and recipient have, and public-key systems that use two keys, a public key known to everyone and a private key that only the recipient of messages uses. Sponsored listings e-Signature: DocuSign - Eliminate Paper-Based Contracts. Cost-Savings up to 80% with eSign! AT&T Tech Support 360 - Save Time and Money for your Small Business with 24/7 AT&T Tech Support. AT&T Digital Media Solutions - Stream your content to the TV, Web, & computer with AT&T's Solutions.		Related Categories Digital Rights Management (DRM) Encryption Related Terms AES CISSP Clipper chip cryptanalysis DES key escrow Pretty Good Privacy public-key encryption security snake oil steganography symmetric-key cryptography TCB Shopping cryptography Products Compare Products,Prices and Stores Shop by Category: Books 84 Model Matches Magazine and Newspaper Subscriptions 2 Model Matches
Cryptography and Security Resources  Excellent collection of links to cryptography and security pages. This site is maintained by Professor Ronald Rivest, creator of the MD5 message-digest algorithm. Cryptography for encryption, digital signatures and authentication  Contains links to information on cryptography, a tutorial on public key encryption for secrecy and a discussion of the debate regarding government control of cryptography. NIST computer security resource clearinghouse  National Institute of Standards and Technology's computer security resource clearinghouse. It contains information on numerous security topics, as well as alerts about viruses and other security threats. RSA Data Security home page  Site of RSA Data Security Inc, creators of the RSA encryption technology used in Netscape Navigator, Quicken, Lotus Notes, and hundreds of other products. SSH - Cryptography A-Z  This page lists international sources of cryptographic software, information on cryptographic methods, algorithms, and protocols. Materials cover encryption, decryption, cryptanalysis, steganography (hiding information), software, tools, information, and assessments about cryptographic methods. The Clinton Administration's statement on commercial encryption policy  Describes a proposed framework that would encourage the use of strong encryption in commerce and private communications while protecting the public safety and national security. Also contains a section on the U.S. Cryptography Policy. (July 1996) Cryptography Timeline This site covers the historical development of cryptography from 1900 BC to the present. Much of the material is taken from book entitled, "The Codebreakers", written by David Kahn. Cryptography.com Contains information about cryptography research and commercial products. Look here for information (including photos) about the clipper chip and the clipper key escrow system. EPIC's cryptography policy page Electronic Privacy Information Center (EPIC) cryptography site. There are links to news and documents, policies, and resources related to cryptography and the clipper chip. International Association for Cryptologic Research (IACR) site Contains information on upcoming IACR conferences and workshops, publications, and membership information. Quadralay Cryptography Archive Contains links to information on the Clipper chip, computer security issues, encryption policy resources, information liberation organizations, and the Macintosh Cryptography Interface Project. The International Association for Cryptologic Research (IACR) This site hosts the research activities of the International Association for Cryptologic Research (IACR). Yahoo!'s cryptography page Yahoo!'s directory of cryptography links. Basic Cryptanalysis The contents of a U.S. Army field document detailing basic cryptanalysis. Cryptography FAQs Provides links to several USENET FAQs focusing on cryptography. Differential Cryptanalysis Cryptanalysis resources, including tutorials, papers and case studies. DRM Watch Analysis of digital rights management technology. Encryption Policy Resource page An issues-oriented site containing information United States encryption export restrictions, with links to articles, legislation, events, initiatives, and policies.