1 C nettle, low-level cryptographics library
3 C Copyright (C) 2013 Niels Möller
5 C The nettle library is free software; you can redistribute it and/or modify
6 C it under the terms of the GNU Lesser General Public License as published by
7 C the Free Software Foundation; either version 2.1 of the License, or (at your
8 C option) any later version.
10 C The nettle library is distributed in the hope that it will be useful, but
11 C WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 C or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
13 C License for more details.
15 C You should have received a copy of the GNU Lesser General Public License
16 C along with the nettle library; see the file COPYING.LIB. If not, write to
17 C the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
20 .file "ecc-521-modp.asm"
36 PROLOGUE(nettle_ecc_521_modp)
43 C Read top 17 limbs, shift left 55 bits
108 C Top limbs are <U9, U8>. Keep low 9 bits of 8, and fold the
109 C top bits (at most 65 bits).
143 EPILOGUE(nettle_ecc_521_modp)