Acrónimos: RC-2
Ver:
· Criptografía de clave secreta
· http://en.wikipedia.org/wiki/RC2
Algoritmo de
cifra creado por Ron Rivest, coautor del RSA.
Cifra por
bloques de 64 bits con una clave de tamaño variable (8 a 128 bits).
A series of
encryption algorithms published by RSA Security; all developed by cryptography
pioneer Ron Rivest. (Rivest Cipher 2, or Ron's Code 2 = RC2) All of them are
important commercial implementations of symmetric key cryptography where the
entity that encrypts and the entity that decrypts both must know the same key.
RC2 was developed
as a replacement for DES (Data Encryption Standard) and has been in widespread
use in a number of commercial software packages, for SSL and S/MIME
implementations, and others. It has had an historical advantage over its
competitor, DES, in that, until the laws were liberalized in 2000, along with
RC4, it had special export status. In order to be exported a relatively short
key length, a weak implementation of 40 bits had to be used. E-mail and web
browser interoperability across country borders was a driving factor.
http://www.rsasecurity.com/glossary/
Block cipher
designed by Ron Rivest in 1987. "RC" stands for "Ron's
Code" or "Rivest Cipher"; other ciphers designed by Rivest
include RC4, RC5 and RC6.
RC2 is a 64-bit
block cipher with a variable size key. Its 18 rounds are arranged as a
source-heavy Feistel network, with 16 rounds of one type (MIXING) punctuated by
two rounds of another type (MASHING). A MIXING round consists of four
applications of the MIX transformation.
http://en.wikipedia.org/wiki/RC2
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