ecc-size.c 1.47 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
/* ecc-size.c

   Copyright (C) 2013 Niels Möller

   This file is part of GNU Nettle.

   GNU Nettle is free software: you can redistribute it and/or
   modify it under the terms of either:

     * the GNU Lesser General Public License as published by the Free
       Software Foundation; either version 3 of the License, or (at your
       option) any later version.

   or

     * 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.

   or both in parallel, as here.

   GNU Nettle 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 copies of the GNU General Public License and
   the GNU Lesser General Public License along with this program.  If
   not, see http://www.gnu.org/licenses/.
*/
Niels Möller's avatar
Niels Möller committed
31

32
/* Development of Nettle's ECC support was funded by the .SE Internet Fund. */
Niels Möller's avatar
Niels Möller committed
33 34 35 36 37 38 39 40

#if HAVE_CONFIG_H
# include "config.h"
#endif

#include "ecc.h"
#include "ecc-internal.h"

Niels Möller's avatar
Niels Möller committed
41 42 43
unsigned
ecc_bit_size (const struct ecc_curve *ecc)
{
44
  return ecc->p.bit_size;
Niels Möller's avatar
Niels Möller committed
45 46
}

Niels Möller's avatar
Niels Möller committed
47 48 49
mp_size_t
ecc_size (const struct ecc_curve *ecc)
{
50
  return ecc->p.size;
Niels Möller's avatar
Niels Möller committed
51 52 53 54 55
}

mp_size_t
ecc_size_a (const struct ecc_curve *ecc)
{
56
  return 2*ecc->p.size;
Niels Möller's avatar
Niels Möller committed
57 58 59 60 61
}

mp_size_t
ecc_size_j (const struct ecc_curve *ecc)
{
62
  return 3*ecc->p.size;
Niels Möller's avatar
Niels Möller committed
63
}