big ints & elliptic curves
Paul Rubin
phr-n2002a at nightsong.com
Fri Apr 12 19:11:11 EDT 2002
"John" <none at none.com> writes:
> Is there any good library for multi-precision arithmetics in Python? Also
> looking for elliptic curve implementations.
Python already includes a long int type (implemented in C) whose performance
isn't so bad. For more speed you can use gmpy.
Using either the built-in arithmetic or gmpy to implement elliptic curve
arithmetic in GF(p) should give acceptable results. For GF(2**N),
http://sourceforge.net/projects/cryptkit/
includes a Python port of Mike Rosing's package.
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