Technology and Trends
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From: wee...@cs.purdue.EDU (Stephen A. Weeber)
Newsgroups: sci.crypt
Subject: Need PD big integer package.
Message-ID: <15238@ector.cs.purdue.edu>
Date: 11 Jul 91 03:05:59 GMT
Reply-To: wee...@ector.cs.purdue.edu (Stephen A. Weeber)
Organization: Department of Computer Science, Purdue University
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I'm doing some crypto work which will involve some large integers.
I can save myself a few days work if someone knows of a public domain
large integer math package.  The package needs to be portable among
different flavors of UNIX/hardware.

Any pointers would be appreciated.

Thanks

Steve

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=           Steve Weeber         |   InterNet: wee...@cs.purdue.edu       =
=         Purdue University      |                                        =
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From: p...@sage.cgd.ucar.edu (Philip Zimmermann)
Newsgroups: sci.crypt
Subject: Re: Need PD big integer package.
Message-ID: <12214@ncar.ucar.edu>
Date: 17 Jul 91 23:44:26 GMT
References: <15238@ector.cs.purdue.edu> <1991Jul11.114343.1661@cs.cornell.edu>
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Organization: Climate and Global Dynamics Division/NCAR, Boulder, CO
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I think you will find the multiprecision math package you need in the file 
PGP10SRC.ZIP and PGP10.ZIP, which is the Pretty Good Privacy public
key encryption program.  This has C source code that does integers up to about
1000 bits (and it can be extended beyond that).  It's pretty fast, too.
It was distributed over the net in early June, and there are news items
on it in sci.crypt.
--Philip Zimmermann