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Topic: RC6 encryption algorithm

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	RC6 - Wikipedia, the free encyclopedia
		The algorithm was one of the five finalists, and was also submitted to the NESSIE and CRYPTREC projects.
		RC6 proper has a block size of 128 bits and supports key sizes of 128, 192 and 256 bits, but, like RC5, it can be parameterised to support a wide variety of word-lengths, key sizes and number of rounds.
		RC6 is very similar to RC5 in structure, using data-dependent rotations, modular addition and XOR operations; in fact, RC6 could be viewed as interweaving two parallel RC5 encryption processes.
	en.wikipedia.org /wiki/RC6_encryption_algorithm (204 words)

	RC6 encryption algorithm
		RC6 is a symmetric key[?] block cipher developed from the RC5.
		It was designed by Rivest, Sidney and Yin to meet the requirements of the AES competition.
		The algorithm was one of the finalists of the AES selection process, which finally picked Rijndael.
	www.ebroadcast.com.au /lookup/encyclopedia/rc/RC6_cipher.html (103 words)

	AES - the Advanced Encryption Standard
		RC6 is a parameterised family of encryption ciphers that essentially use the Feistel structure; 20 rounds were specified for the AES submission.
		The speed of the algorithm on a variety of platforms needed to be considered, and assessments were made of speed based on 128, 192 and 256 bit keys.
		Flexibility includes the ability of an algorithm to handle key and block sizes beyond the minimum that must be supported, to be implemented securely and efficiently in many different types of environments, to be implemented as a stream cipher or hashing algorithm, and to provide additional cryptographic services.
	www.cescomm.co.nz /about/aes.html (1365 words)

	RC5 encryption algorithm
		It has a variable block size (32, 64 or 128 bits), key size (0 to 2040) and number of rounds (0 to 255).
		RSA security[?] has a patent on the algorithm.
		Distributed.net has brute-forced messages encrypted with RC5 in 56 and 64 bit keys, and is currently working on finding a 72 bit key.
	www.ebroadcast.com.au /lookup/encyclopedia/rc/RC5_cipher.html (111 words)

	RC4 - Wikipedia, the free encyclopedia
		Because the algorithm is known, it is no longer a trade secret.
		RC4 generates a pseudorandom stream of bits (a "keystream") which, for encryption, is combined with the plaintext using XOR as with any Vernam cipher; decryption is performed the same way.
		The key-scheduling algorithm is used to initialise the permutation in the array "S".
	en.wikipedia.org /wiki/RC4 (1220 words)

	Encryption algorithms
		Encryption is the process of converting a plaintext message into ciphertext which can be decoded back into the original message.
		An encryption algorithm along with a key is used in the encryption and decryption of data.
		A symmetric encryption algorithm that processes the data a bit or a byte at a time with a key resulting in a randomized ciphertext or plaintext.
	www.networksorcery.com /enp/data/encryption.htm (692 words)

	Additional encryption modules for BestCrypt
		The algorithm is invented by Joan Daemen and Vincent Rijmen, and recently NIST selected the algorithm as an Advanced Encryption Standard (AES).
		The algorithm is developed by Xuejia Lai and James Massey, originally called PES in 1990, then authours strengthened the cipher and called it IDEA in 1992.
		The RC6 block cipher was designed by Ron Rivest in collaboration with Matt Robshaw, Ray Sidney, and Yiqun Lisa Yin from RSA Laboratories.
	www.jetico.com /plugins.htm (991 words)

	U2 encryption in an open technology world
		If your key to the encryption is secure, and the strength of the cipher used is strong (number of bits used to encrypt data), then the encrypted cipher data will not be easily read by eavesdroppers.
		A seed value is used in the encryption of a plaintext password to expand the number of possible resulting cipher texts from a given plaintext.
		The size of IV depends on the encryption algorithm and on the cryptographic protocol in use.
	www.ibm.com /developerworks/db2/library/techarticle/dm-0604kesic/?ca=drs- (3829 words)

	Tiny Encryption Algorithm - Wikipedia, the free encyclopedia
		In cryptography, the Tiny Encryption Algorithm (TEA) is a block cipher notable for its simplicity of description and implementation (typically a few lines of code).
		Following is an adaptation of the reference encryption and decryption routines in C, released into the public domain by David Wheeler and Roger Needham:
		A Cryptanalysis of the Tiny Encryption Algorithm, Masters thesis, The University of Alabama, Tuscaloosa, 2003.
	en.wikipedia.org /wiki/Tiny_Encryption_Algorithm (566 words)

	Encryption Algorithm
		An encryption algorithm is a mathematical procedure for performing encryption on data.
		Through the use of an algorithm, information is made into meaningless cipher text and requires the use of a key to transform the data back into its original form.
		Blowfish, AES RC4, RC5, and RC6 are examples of encryption algorithms.
	www.handybackup.net /backup_terms/encryption_algorithm.shtml (52 words)

	FIRST ADVANCED ENCRYPTION STANDARD (AES) CANDIDATE CONFERENCE (Site not responding. Last check: 2007-11-02)
		Comments on the algorithms as viewed against the evaluation criteria are anticipated to be the subject of a majority of the public comments.
		Each submitter of a candidate algorithm accepted by NIST into the AES development process was invited to present a briefing on their submission and answer questions.
		He said that the algorithm is "forward-looking" in that it runs best on 64-bit architectures, but, conversely, it is "smartcard hostile," and, also, "doesnt favor Pentium." He claimed that the algorithm is fast, but cited the disadvantages of the code length, the dynamic storage size, and the slow primary key setup.
	www.ieee-security.org /Cipher/ConfReports/conf-rep-aes.html (5942 words)

	Strong Encryption Package, Mars Encryption
		The algorithm(s) is expected to be used by the U.S. Government and, on a voluntary basis, by the private sector.
		In addition, the algorithm(s) must implement symmetric key cryptography as a block cipher and (at a minimum) support block sizes of 128 bits and key sizes of 128, 192, and 256 bits.
		The AES finalist candidate algorithms are MARS, RC6, Rijndael, Serpent, and Twofish.
	www.tropsoft.com /strongenc/mars.htm (1266 words)

	Advanced Encryption Standard - a Whatis.com definition
		The Advanced Encryption Standard (AES) is an encryption algorithm for securing sensitive but unclassified material by U.S. Government agencies and, as a likely consequence, may eventually become the de facto encryption standard for commercial transactions in the private sector.
		The specification called for a symmetric algorithm (same key for encryption and decryption) using block encryption (see block cipher) of 128 bits in size, supporting key sizes of 128, 192 and 256 bits, as a minimum.
		The algorithm was required to be royalty-free for use worldwide and offer security of a sufficient level to protect data for the next 20 to 30 years.
	whatis.techtarget.com /gDefinition/0,294236,sid44_gci344759,00.html (526 words)

	CodeGuru Forums - I need some encryption algorithm
		usually, public key encryption is used to encrypt a temporary symmetric key, which was previously used to encrypt the data.
		I would much rather that people use strong encryption where it isn't strictly necessary than that people use weak/worthless encryption where security is a factor.
		Even if you had a good copy of bignum (that did things like zeroed all memory during destruction), and a flawless implementation of the RSA algorithm itself, it is still considered insecure to use the algorithm directly.
	www.codeguru.com /forum/showthread.php?p=1200998 (1271 words)

	RSA Security - 3.6.6 What are MD2, MD4, and MD5?
		While the structures of these algorithms are somewhat similar, the design of MD2 is quite different from that of MD4 and MD5.
		In recent work, Dobbertin (Fast Software Encryption, 1998) has shown that a reduced version of MD4 in which the third round of the compression function is not executed but everything else remains the same, is not one-way.
		The algorithm consists of four distinct rounds, which has a slightly different design from that of MD4.
	www.rsasecurity.com /rsalabs/node.asp?id=2253 (527 words)

	Dr. Dobb's \| The Twofish Encryption Algorithm \| July 22, 2001
		The Twofish encryption algorithm was designed to become the Advanced Encryption Standard (AES), the yet-to-be-determined standard encryption algorithm to replace DES.
		Almost all encryption algorithms have some kind of key-setup routine: a way to take the key and make the round subkeys that the algorithm uses.
		Square is a strong algorithm, and Rijndael seems to be a strong variant of it.
	ddj.com /article/printableArticle.jhtml?articleID=184410744&dept_url= (3994 words)

	robf.de: Next generation encryption algorithm
		Encryption algorithms from IBM, RSA Laboratories and cryptographers from Belgium, the U.S., the U.K., Israel and Norway have been chosen as finalists in a contest to find what will become the next-generation Advanced Encryption Standard (AES).
		The U.S. Department of Commerce's National Institute of Standards and Technology is holding the competition to find a replacement for the aging Data Encryption Standard (DES), which was adopted in 1977 by the U.S. government as its standard encryption algorithm and has since been widely used by software vendors, financial institutions and other businesses.
		The algorithms were tested in all sorts of uses from large computers to smart cards, according to NIST.
	www.robf.de /Blabla/english--Next_generation_encryption_algorithm.html (432 words)

	Strong Encryption Package, Serpent
		The algorithm uses twice as many rounds as are necessary to block all currently known shortcut attacks.
		This iteration of the algorithm was called Serpent 0 and used the original DES S-boxes.
		The detailed description of the actual algorithm is contained in the official Serpent paper submitted for the AES by the algorithm's designers.
	www.tropsoft.com /strongenc/serpent.htm (1124 words)

	EBN - Deciphering the Advanced Encryption Standard (Site not responding. Last check: 2007-11-02)
		Another consideration was the cost of changing keys--most encryption algorithms must do some preprocessing on a key before it can start encrypting and decrypting.
		RC6 is a simple algorithm with an adequate security margin.
		Twofish uses an innovative approach that uses half of its encryption key to modify how the encryption algorithm operates, and this subalgorithm uses the other half of the key as its own encryption key.
	www.itarchitect.com /shared/printableArticle.jhtml?articleID=8703053 (3337 words)

	Cryptographic Algorithms: Block and Stream Ciphers, Hash Algorithms. Kremlin Encrypt Security Software: Encrypt and ...
		CMEA is the encryption algorithm developed by the Telecommunications Industry Association to encrypt digital cellular phone data.
		GOST is a cryptographic algorithm from Russia that appears to be the Russian analog to DES both politically and technologically.
		Tiger is a new hash algorithm by Ross Anderson and Eli Biham.
	www.kremlinencrypt.com /crypto/algorithms.html (3164 words)

	RSA Security - Press Release - RSA's RC6 Algorithm Named As Finalist For New Federal Crypto Standard
		Designed by MIT professor and RSA Data Security co-founder Ronald Rivest in conjunction with RSA Laboratories, RC6 is now among a group of five candidate algorithms that NIST will examine more closely over the next 12 to 18 months to replace the current Data Encryption Standard (DES) which is now more than 20 years old.
		The focus of the NIST process will now shift to the inner workings of the algorithms to deeply study how they operate in order to judge their security, as well as their suitability for hardware implementation and other issues.
		With its 128-bit or higher key size, RC6 offers a considerably higher level of security than the current DES algorithm, which has been routinely cracked in ever shorter times as demonstrated by RSA's recent DES Challenge competitions.
	www.rsasecurity.com /press_release.asp?doc_id=504&id=1034 (489 words)

	Encryption
		Super File Encryption is a program for encrypting and protecting your data--good for offices that need to keep important documents secure.
		The Krickit Encryption Key is an access management and file encryption solution that effectively controls who uses your computer and ensures that the information on the system stays private.
		DbEncrypt for Microsoft SQL Server provides you a database encryption solution including a variety of encryption algorithms to pick from, templates to build your own encryption procedures from, as well as a point-and-click user interface for installing and managing the encryption.
	www.isaserver.org /software/W2K/Encryption (812 words)

	Smart Computing Article - Encryption Tools (Site not responding. Last check: 2007-11-02)
		When using public-key encryption, which is also known as asymmetric encryption, your computer encrypts a message with the recipient's public key (or a code) so that only the recipient's private key will unscramble the code.
		This type of encryption is a little less secure because the sender and the recipient use the same key to encrypt and decrypt messages.
		He says having a basic knowledge of algorithms and encryption should be plenty to allow a consumer to adequately use a good encryption tool product.
	www.smartcomputing.com /editorial/article.asp?article=articles/archive/g0908/46g08/46g08.asp&guid=hin9khea (2074 words)

	Advanced Encryption Standard - crypto for the next century (Site not responding. Last check: 2007-11-02)
		It is the selection of the Advanced Encryption Standard, a successor to the venerable Data Encryption Standard encryption algorithm, which was developed by IBM in the 1970s.
		Although the strength of the algorithm, and its resistance to attack, is the primary selection criteria, speed and portability are also critical.
		While it may seem odd that the algorithm of the future needs to run on the hardware of the past, the vision is that this encryption needs to work on nontraditional devices, such as smart cards, where the resources are still predicted to be modest for a while.
	www.networkworld.com /newsletters/sec/0927sec1.html (1205 words)

	RSA Security - RC6® Block Cipher
		As part of the effort to find the successor to DES, RSA Laboratories submitted RC6 as a candidate for the Advanced Encryption Standard (AES).
		RC6 entered the final round as one of five algorithms, but the Belgian algorithm Rijndael was eventually selected for the AES.
		To promote RC6 further, RSA Laboratories has submitted the algorithm to the NESSIE project, the NP 18033 project (via the Swedish ISO/IEC JTC 1/SC 27 member body), and the Information-technology Promotion Agency in Japan.
	www.rsasecurity.com /rsalabs/node.asp?id=2512 (250 words)

	Mcrypt
		Block algorithms are implemented in modes: CFB, CBC, CTR, ECB, OFB (8 bit and n bit, where n is the size of the algorithm's block length).
		For a brief description of the algorithms and the modes look at the mcrypt manpage (this may be out of date).
		It's purpose was to assist in the development of mcrypt by providing a uniform interface to access several different encryption algorithms, so that the main program is independent of the encryption algorithms and the modes used.
	mcrypt.hellug.gr (671 words)

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