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The '''RC algorithms''' are a set of [[symmetric-key encryption algorithm]]s invented by [[Ron Rivest]]. The "RC" may stand for either '''Rivest's cipher''' or, more informally, '''Ron's code'''.<ref>https://www.pcmag.com/encyclopedia_term/0,1237,t=RC+algorithms&i=50212,00.asp {{Dead link|date=February 2022}}</ref> Despite the similarity in their names, the algorithms are for the most part unrelated. There have been six RC algorithms so far:

*RC1 was never published.
*[[RC2]] was a 64-bit [[block cipher]] developed in 1987.
*RC3 was broken before ever being used.
*[[RC4]] is a [[stream cipher]].
*[[RC5]] is a 32/64/128-bit block cipher developed in 1994.
*[[RC6]], a 128-bit block cipher based heavily on RC5, was an [[AES process|AES finalist]] developed in 1997.

==References==
{{reflist}}

{{DEFAULTSORT:Rc Algorithm}}
[[Category:Cryptographic algorithms]]

RC algorithm - Revision history

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