[comp.unix.wizards] Arbitrary precision math

gilgalad@dip.eecs.umich.edu (Ralph Seguin) (06/12/90)

Hi.  Anybody know where I can pick up the source to dc?  What about
arbitrary precision math routines?  What about RSA cyphering routines?
I received a reply saying that I should get APML (arbitrary precision
math library).  I checked several locations, but was unable to find it.
Anybody got an idea where I can find any of this?

 
			Thanks, Ralph

 
gilgalad@dip.eecs.umich.edu       gilgalad@zip.eecs.umich.edu
gilgalad@caen.engin.umich.edu     Ralph_Seguin@ub.cc.umich.edu
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smb@ulysses.att.com (Steven Bellovin) (06/12/90)

In article <2598@zipeecs.umich.edu>, gilgalad@dip.eecs.umich.edu (Ralph Seguin) writes:
> Hi.  Anybody know where I can pick up the source to dc?
> What about RSA cyphering routines?

Last time you posted this query, I pointed out that bc was developed
by AT&T, and is covered by AT&T's license agreements.  Guess what --
the same is true for dc.  I also pointed out that RSA is covered by
a U.S. patent.

At any rate, if you're looking for just the multiple precision arithmetic
stuff, the following was posted to sci.crypt (to which I referred you)
a couple of weeks ago:

Kevin Coombes's "arith", ftp.math.lsa.umich.edu: pub/kevin/arith.tar.Z
Henri Cohen's "pari", math.ucla.edu: pub/pari
J Vuillemin et al's "bignum", email to librarian@decprl.dec.com

Pari is copyrighted, but freely redistributable unmodified and in
its entirety.  Airth is copyrighted and covered by the GNU ``copyleft''.
I don't have a copy of bignum, and don't know the restrictions on it,
if any.