mirror of
https://github.com/clearml/dropbear
synced 2025-06-26 18:17:32 +00:00
3b2639b9b5
--HG-- branch : libtommath-orig extra : convert_revision : 29392f1198b77a2021e78879c1489e84c9e98ef4
32 lines
1.2 KiB
C
32 lines
1.2 KiB
C
/* LibTomMath, multiple-precision integer library -- Tom St Denis
|
|
*
|
|
* LibTomMath is a library that provides multiple-precision
|
|
* integer arithmetic as well as number theoretic functionality.
|
|
*
|
|
* The library was designed directly after the MPI library by
|
|
* Michael Fromberger but has been written from scratch with
|
|
* additional optimizations in place.
|
|
*
|
|
* The library is free for all purposes without any express
|
|
* guarantee it works.
|
|
*
|
|
* Tom St Denis, tomstdenis@iahu.ca, http://math.libtomcrypt.org
|
|
*/
|
|
#include <tommath.h>
|
|
|
|
/* Known optimal configurations
|
|
|
|
CPU /Compiler /MUL CUTOFF/SQR CUTOFF
|
|
-------------------------------------------------------------
|
|
Intel P4 /GCC v3.2 / 70/ 108
|
|
AMD Athlon XP /GCC v3.2 / 109/ 127
|
|
|
|
*/
|
|
|
|
/* configured for a AMD XP Thoroughbred core with etc/tune.c */
|
|
int KARATSUBA_MUL_CUTOFF = 109, /* Min. number of digits before Karatsuba multiplication is used. */
|
|
KARATSUBA_SQR_CUTOFF = 127, /* Min. number of digits before Karatsuba squaring is used. */
|
|
|
|
TOOM_MUL_CUTOFF = 350, /* no optimal values of these are known yet so set em high */
|
|
TOOM_SQR_CUTOFF = 400;
|