I-D ACTION:draft-baldwin-rc5-00.txt

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       Title     : The RC5, RC5-CBC, RC5-CBC-Pad, and RC5-CTS Algorithms   
       Author(s) : R. Baldwin, R. Rivest
       Filename  : draft-baldwin-rc5-00.txt
       Pages     : 36
       Date      : 03/21/1996

This document defines four ciphers with enough detail to ensure 
interoperability between different implementations.  The first cipher is 
the raw RC5 block cipher.  The RC5 cipher takes a fixed size input block 
and produces a fixed sized output block using a transformation that depends
on a key.  The second cipher, RC5-CBC, is the Cipher Block Chaining (CBC) 
mode for RC5.  It can process messages whose length is a multiple of the 
RC5 block size.  The third cipher, RC5-CBC-Pad, handles plaintext of any 
length, though the ciphertext will be longer than the plaintext by at most 
the size of a single RC5 block.  The RC5-CTS cipher is the Cipher Text 
Stealing mode of RC5, which handles plaintext of any length and the 
ciphertext length matches the plaintext length.                            

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