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From: cchute@mahlon.mayo.edu (Christopher G. Chute, MD)
Newsgroups: comp.misc
Subject: Check digit references/algorithms sought.
Message-ID: <1188@nic.MR.NET>
Date: 2 Mar 89 18:39:52 GMT
Sender: news@nic.MR.NET
Reply-To: cchute@mahlon.mayo.edu ()
Organization: Mayo Clinic, Rochester, MN
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I am interested in evaluations of the properties of check digits for valid-
ating an identification number, such as the ubiquitous modulus 11 on a
the the sum of products for each digit in a number and a series of
constants.  In particular, I am interested in the properties of very
large modulus results and their ability to detect digit permutation
and other number entry errors.

The computer literature is indexed in ways that are mysterious to a
simple country doc like me, I can only find reference to things written
in the 60's and early 70's.  I would appreciate any references (or
algorithms) that folks might know about with respect to check digit
properties.  Thanks.

Cheers,
Chris Chute, MD                Voice:    (507)284-5506
Mayo Clinic, Section of        FAX:      (507)284-5760 
Medical Information Resources  Internet: chute@mayo.EDU 
Rochester, MN 55905            UUCP:     chute@medinf.UUCP
Cheers,
Chris Chute, MD                Voice:    (507)284-5506
Mayo Clinic, Section of        FAX:      (507)284-5760 
Medical Information Resources  Internet: chute@mayo.EDU