Columbia crypto box

[Bill Frantz]

At 4:29 PM -0800 2/10/03, Steven M. Bellovin wrote:
>In message <v03110705ba6dec92ddb0@[192.168.1.5]>, Bill Frantz writes:
>
>>  * Fast key setup (Forget tossing the 256 bytes of key stream.
>>    The designers weren't crypto engineers.  Personally, I'd toss the
>>    first 1024.)
>
>...
>
>There may be a cryptographically sound reason to discard that much, but
>it's not without cost.

The reason I would discard so much is that when I did some statistics on
RC4 output, I kept getting distribution lumps out to about 1024.  They made
me worry about what someone who knew what were doing could do.

Cheers - Bill


-------------------------------------------------------------------------
Bill Frantz           | Due process for all    | Periwinkle -- Consulting
(408)356-8506         | used to be the Ameican | 16345 Englewood Ave.
frantz at pwpconsult.com | way.                   | Los Gatos, CA 95032, USA



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