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block cipher
block cipher A cipher in which a fixed-length block of data is encrypted, or decrypted, at each iteration of the algorithm: each block is input, encrypted, and output, with no memory (to retain message-dependent information) between blocks (compare stream cipher). Nevertheless, it is possible to use a block cipher as a component within a more complex system that effects a stream cipher. See also cryptography.
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JOHN DAINTITH. "block cipher." A Dictionary of Computing. 2004. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. JOHN DAINTITH. "block cipher." A Dictionary of Computing. 2004. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O11-blockcipher.html JOHN DAINTITH. "block cipher." A Dictionary of Computing. 2004. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O11-blockcipher.html |
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block cipher
block cipher An ALGORITHM used in symmetric key encryption which transforms a block of data each time the algorithm is applied. One of the most best-known block cipher algorithms is the DATA ENCRYPTION STANDARD developed by the US government.
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Cite this article
DARREL INCE. "block cipher." A Dictionary of the Internet. 2001. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. DARREL INCE. "block cipher." A Dictionary of the Internet. 2001. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O12-blockcipher.html DARREL INCE. "block cipher." A Dictionary of the Internet. 2001. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O12-blockcipher.html |
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