pqc/external/flint-2.4.3/fmpz_factor/profile/p-factor_pp1.c
2014-05-24 23:16:06 +02:00

81 lines
2.0 KiB
C

/*=============================================================================
This file is part of FLINT.
FLINT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FLINT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright 2012 William Hart
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "profiler.h"
#include "flint.h"
#include "fmpz.h"
#include "fmpz_factor.h"
int main(void)
{
fmpz_t n, p;
ulong c;
ulong B1;
fmpz_init(n);
fmpz_init(p);
FLINT_TEST_INIT(state);
while(1)
{
flint_printf("Enter number to be factored: "); fflush(stdout);
if (!fmpz_read(n))
{
flint_printf("Read failed\n");
abort();
}
flint_printf("Enter B1: "); fflush(stdout);
if (!flint_scanf("%wu", &B1))
{
flint_printf("Read failed\n");
abort();
}
do
{
c = n_randlimb(state);
} while (c <= UWORD(2));
if (fmpz_factor_pp1(p, n, B1, B1/100, c))
{
flint_printf("Factor: ");
fmpz_print(p);
flint_printf("\n");
} else
flint_printf("Factor not found!\n");
} while(1);
flint_randclear(state);
fmpz_clear(n);
fmpz_clear(p);
return 0;
}