mirror of
https://github.com/vale981/arb
synced 2025-03-06 18:01:39 -05:00
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
|
/*=============================================================================
|
||
|
|
|
||
|
|
This file is part of ARB.
|
||
|
|
|
||
|
|
ARB 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.
|
||
|
|
|
||
|
|
ARB 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 ARB; if not, write to the Free Software
|
||
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
|
||
|
|
=============================================================================*/
|
||
|
|
/******************************************************************************
|
||
|
|
|
||
|
|
Copyright (C) 2016 Pascal Molin
|
||
|
|
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#include "dlog.h"
|
||
|
|
#include "padic.h"
|
||
|
|
|
||
|
|
ulong
|
||
|
|
dlog_modpe(const dlog_modpe_t t, ulong b)
|
||
|
|
{
|
||
|
|
ulong x;
|
||
|
|
x = dlog_precomp(t->modp, b % t->p);
|
||
|
|
/*b = b * n_powmod(t->a, -x, t->pe);*/
|
||
|
|
b = n_powmod(b, t->p - 1, t->pe);
|
||
|
|
x = x + (t->p-1) * dlog_1modpe(t->modpe, b);
|
||
|
|
return x;
|
||
|
|
}
|