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Date: Tue, 15 Sep 1998 13:03:47 -0700
To: Khan Khalid M <kmk2@mundania.eng.wayne.edu>
From: Jamie Lawrence <jal@ThirdAge.com>
Subject: Re: Request please...
Cc: questions@FreeBSD.ORG
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crypt (assuming that's what you're using) uses modified
DES to create a hash of the password and a "salt" - a
semi-random value that ensures that the encrypted value
is unique, or at least very hard to duplicate.

If you're really interested, I suggest Applied Cryptography,
by Bruce Schneier (http://www.counterpane.com/). Crypto is
difficult stuff.

-j

At 03:33 PM 9/15/98 -0400, you wrote:
>
>Hello,
>
>I am tring to learn how the encryption system works...
>I gave a passwd of "aabbcc" and wrote the passwd cryption 
>and then changed it to something else and back again. Then two 
>crypt of the same password was drifferent. I am tring find how 
>does the system check the passwd for user loging on to the system, 
>when encryption are drifferent. Or does it more then one encrypt 
>system ????
>
>So where can i find some reading info .. so that i can find 
>how this is working. And also where can i get the code for 
>passwd.c
>
>-Thanks
>-Khalid Khan
> student@wayne-state-un
>
>
>
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