Rivest ciphers: Difference between revisions
imported>Sandy Harris (New page: Ron Rivest, an MIT professor and one of the founders of RSA Security, has devised a number of ciphers for that company, either alone or with collaborators. These designs ar...) |
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[[Ron Rivest]], an [[MIT]] professor and one of the founders of [[RSA Security]], has devised a number of [[cipher]]s for that company, either alone or with collaborators. These designs are designated as '''RC'''n''. Officially, "RC" stands for '''Rivest Cipher'''; it may also be taken as "Ron's Code". | [[Ron Rivest]], an [[MIT]] professor and one of the founders of [[RSA Security]], has devised a number of [[cipher]]s for that company, either alone or with collaborators. These designs are designated as '''RC'''''n''. Officially, "RC" stands for '''Rivest Cipher'''; it may also be taken as "Ron's Code". | ||
== RC2 == | == RC2 == | ||
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There is an RFC giving an RC5 specification for Internet use; see [[Block_cipher/External_Links#RFCs_for_block_ciphers | external links]]. | There is an RFC giving an RC5 specification for Internet use; see [[Block_cipher/External_Links#RFCs_for_block_ciphers | external links]]. | ||
Its descendant RC6, also using data-dependent rotations, was an AES finalist. RSA | Its descendant RC6, also using data-dependent rotations, was an AES finalist. RSA Security have a page describing both ciphers; see [[Block_cipher/External_Links#Homepages_for_block_ciphers | external links]]. | ||
Revision as of 21:28, 23 July 2009
Ron Rivest, an MIT professor and one of the founders of RSA Security, has devised a number of ciphers for that company, either alone or with collaborators. These designs are designated as RCn. Officially, "RC" stands for Rivest Cipher; it may also be taken as "Ron's Code".
RC2
RC4
RC4 is a very widely deployed stream cipher.
RC5
RC5 is a block cipher with 64-bit blocks, one of the DES generation of block ciphers. It was the first well-known cipher to make extensive use of data-dependent rotations to achieve nonlinearity. It is a Feistel cipher.
There is an RFC giving an RC5 specification for Internet use; see external links.
Its descendant RC6, also using data-dependent rotations, was an AES finalist. RSA Security have a page describing both ciphers; see external links.