diff options
Diffstat (limited to 'include/linux/mpi.h')
| -rw-r--r-- | include/linux/mpi.h | 42 |
1 files changed, 27 insertions, 15 deletions
diff --git a/include/linux/mpi.h b/include/linux/mpi.h index 7cd1473c64a4..47be46f36435 100644 --- a/include/linux/mpi.h +++ b/include/linux/mpi.h @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* mpi.h - Multi Precision Integers * Copyright (C) 1994, 1996, 1998, 1999, * 2000, 2001 Free Software Foundation, Inc. * * This file is part of GNUPG. * - * GNUPG 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. - * - * GNUPG 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 this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - * * Note: This code is heavily based on the GNU MP Library. * Actually it's the same code with only minor changes in the * way the data is stored; this is to support the abstraction @@ -59,6 +46,8 @@ MPI mpi_alloc(unsigned nlimbs); void mpi_free(MPI a); int mpi_resize(MPI a, unsigned nlimbs); +MPI mpi_copy(MPI a); + /*-- mpicoder.c --*/ MPI mpi_read_raw_data(const void *xbuffer, size_t nbytes); MPI mpi_read_from_buffer(const void *buffer, unsigned *ret_nread); @@ -69,6 +58,9 @@ int mpi_read_buffer(MPI a, uint8_t *buf, unsigned buf_len, unsigned *nbytes, int mpi_write_to_sgl(MPI a, struct scatterlist *sg, unsigned nbytes, int *sign); +/*-- mpi-mod.c --*/ +int mpi_mod(MPI rem, MPI dividend, MPI divisor); + /*-- mpi-pow.c --*/ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod); @@ -76,16 +68,36 @@ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod); int mpi_cmp_ui(MPI u, ulong v); int mpi_cmp(MPI u, MPI v); +/*-- mpi-sub-ui.c --*/ +int mpi_sub_ui(MPI w, MPI u, unsigned long vval); + /*-- mpi-bit.c --*/ void mpi_normalize(MPI a); unsigned mpi_get_nbits(MPI a); +int mpi_test_bit(MPI a, unsigned int n); +int mpi_set_bit(MPI a, unsigned int n); +int mpi_rshift(MPI x, MPI a, unsigned int n); + +/*-- mpi-add.c --*/ +int mpi_add(MPI w, MPI u, MPI v); +int mpi_sub(MPI w, MPI u, MPI v); +int mpi_addm(MPI w, MPI u, MPI v, MPI m); +int mpi_subm(MPI w, MPI u, MPI v, MPI m); + +/*-- mpi-mul.c --*/ +int mpi_mul(MPI w, MPI u, MPI v); +int mpi_mulm(MPI w, MPI u, MPI v, MPI m); + +/*-- mpi-div.c --*/ +int mpi_tdiv_r(MPI rem, MPI num, MPI den); +int mpi_fdiv_r(MPI rem, MPI dividend, MPI divisor); /* inline functions */ /** * mpi_get_size() - returns max size required to store the number * - * @a: A multi precision integer for which we want to allocate a bufer + * @a: A multi precision integer for which we want to allocate a buffer * * Return: size required to store the number */ |