From: (Ross Anderson)
Newsgroups: sci.crypt

Subject: Re: Variable Size Block Ciphers
Date: 21 Aug 1995 11:32:21 GMT
Organization: U of Cambridge Computer Lab, UK
Lines: 13
Message-ID: <419qs5$>
References: <>
NNTP-Posting-Host: (Terry Ritter) writes:

>  For some time now I have been working with some apparently new
>  ciphering structures which I call "Variable Size Block Ciphers."
>  As the name suggests, these constructs can be made to cipher blocks
>  of essentially arbitrary size (typically in byte-size steps),
>  *without* changing the number of layers or "rounds" in the cipher.

Two such ciphers appeared in 1993 - WAKE by David Wheeler and a 
proposal from Burt Kaliski and Matt Robshaw. They are both in `Fast
Software Encryption', Springer LNCS 809