Re: choosing passwords (was: Re: Crypt should be based on MD5)

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Article #477

#477

From: Larry Engholm
Date: Thu, 23 Jul 1992 06:28

13 lines
1157 bytes

In article <1992Jul19.213045.7286@tpki.toppoint.de> freitag@tpki.toppoint.de (Claus Schoenleber) writes regarding the ISBN checksum:

	       / 10         \
	      /  __          \
   c = 11 -  (   \   a  * i   )  mod 11
	      \  /_   i      /
	       \ i=2        /

   >If c = 10, then take letter 'X' instead.

So what if the sum mod 11 is 0, and therefor c=11?  Is 'Y' used?

This algorithm implies that c can't be 0.  (Maybe 0 is used for 11).

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Message-ID: <ENGHOLM.92Jul23012833@nodule.lmo.dec.com>

Path: arc1-ca.pugleaf.net!sparky!uunet!decwrl!deccrl!news.crl.dec.com!news!nntpd.lkg.dec.com!nntpd.lkg.dec.com!engholm

References: <1992Jul12.093017.20528@nntp.uoregon.edu> <NL3uNB2w165w@elrond.toppoint.de> <1992Jul19.213045.7286@tpki.toppoint.de>

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Newsgroups: sci.crypt,comp.security.misc
Path: arc1-ca.pugleaf.net!sparky!uunet!decwrl!deccrl!news.crl.dec.com!news!nntpd.lkg.dec.com!nntpd.lkg.dec.com!engholm
From: engholm@nodule.lmo.dec.com (Larry Engholm)
Subject: Re: choosing passwords (was: Re: Crypt should be based on MD5)
In-Reply-To: freitag@tpki.toppoint.de's message of Sun, 19 Jul 1992 21:30:45 GMT
Message-ID: <ENGHOLM.92Jul23012833@nodule.lmo.dec.com>
Sender: usenet@nntpd.lkg.dec.com (USENET News System)
Organization: Digital Equipment Corp, Marlboro, MA
References: <1992Jul12.093017.20528@nntp.uoregon.edu>
 <NL3uNB2w165w@elrond.toppoint.de>
 <1992Jul19.213045.7286@tpki.toppoint.de>
Date: Thu, 23 Jul 1992 06:28:33 GMT
Lines: 13

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