On 4 September 2013 15:49, Perry E. Metzger <[email protected]> wrote:
> On Wed, 4 Sep 2013 10:37:12 -0400 "Perry E. Metzger" > <[email protected]> wrote: > > Phil Karn described a construction for turning any hash function > > into the core of a Feistel cipher in 1991. So far as I can tell, > > such ciphers are actually quite secure, though impractically slow. > > > > Pointers to his original sci.crypt posting would be appreciated, I > > wasn't able to find it with a quick search. > > Answering my own question > > > https://groups.google.com/forum/#!original/sci.crypt/tTWR2qIII0s/iDvT3ptY5CEJ > > Note that Karn's construction need not use any particular hash > function -- he's more or less simply describing how to use a hash > function of any sort as the heart of a Feistel cipher. > His claim is that it is actually faster than DES, not impractically slow.
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