ask a question about DES

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From: Jason
Date: Sun, 21 Feb 1999 00:00

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HELLO.....
I read the writing "How to implment the DES"
There is a point that Ican understand....
"process the key
get a 64-bit key from the user(every 8th bit is considered a parity bit.
For a key to have correct parity,each byte should contain an odd number
of "1" bits.)"
I don't understand how DES can differentiate "ff"&"7f" when discared the
parity bit?
After discared parity bit,ff=1111111(in binary) 7f=1111111....right?

Please show me where is the different?Thank you

                                                                   JASON



Scorpio

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From: "Jason" <jason008@ms1.seeder.net>
Subject: ask a question about DES
Date: 1999/02/21
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