mirror of
https://github.com/cryb-to/cryb-to.git
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915 lines
24 KiB
C
915 lines
24 KiB
C
/*
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* Copyright (c) 2014-2017 Dag-Erling Smørgrav
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "cryb/impl.h"
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#include <sys/types.h>
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#include <stdint.h>
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#include <string.h>
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#include <unistd.h>
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#include <cryb/endian.h>
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#include <cryb/mpi.h>
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#include <cryb/test.h>
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#include "t_mpi.h"
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/***************************************************************************
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* Addition
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*/
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static struct t_add_case {
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const char *desc;
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uint8_t a[16];
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size_t amsb;
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int aneg:1;
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uint8_t b[16];
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size_t bmsb;
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int bneg:1;
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uint8_t e[16];
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size_t emsb;
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int eneg:1;
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} t_add_cases[] = {
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{
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"|0| + |0| == 0",
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{ }, 0, 0,
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{ }, 0, 0,
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{ }, 0, 0,
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},
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{
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"|0| + |1| == 1",
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{ }, 0, 0,
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{ 0x01 }, 1, 0,
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{ 0x01 }, 1, 0,
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},
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{
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"|1| + |0| == 1",
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{ 0x01 }, 1, 0,
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{ }, 0, 0,
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{ 0x01 }, 1, 0,
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},
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{
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"|1| + |1| == 2",
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{ 0x01 }, 1, 0,
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{ 0x01 }, 1, 0,
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{ 0x02 }, 2, 0,
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},
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{
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"|0| + |-1| == 1",
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{ }, 0, 0,
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{ 0x01 }, 1, 1,
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{ 0x01 }, 1, 0,
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},
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{
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"|-1| + |0| == 1",
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{ 0x01 }, 1, 1,
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{ }, 0, 0,
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{ 0x01 }, 1, 0,
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},
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{
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"|-1| + |-1| == 2",
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{ 0x01 }, 1, 1,
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{ 0x01 }, 1, 1,
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{ 0x02 }, 2, 0,
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},
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{
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"|0x20140901| + |0x19700101| == 0x39840a02",
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{ 0x20, 0x14, 0x09, 0x01 }, 30, 0,
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{ 0x19, 0x70, 0x01, 0x01 }, 29, 0,
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{ 0x39, 0x84, 0x0a, 0x02 }, 30, 0,
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},
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{
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"|-0x20140901| + |0x19700101| == 0x39840a02",
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{ 0x20, 0x14, 0x09, 0x01 }, 30, 1,
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{ 0x19, 0x70, 0x01, 0x01 }, 29, 0,
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{ 0x39, 0x84, 0x0a, 0x02 }, 30, 0,
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},
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{
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"|0x20140901| + |-0x19700101| == 0x39840a02",
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{ 0x20, 0x14, 0x09, 0x01 }, 30, 0,
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{ 0x19, 0x70, 0x01, 0x01 }, 29, 1,
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{ 0x39, 0x84, 0x0a, 0x02 }, 30, 0,
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},
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{
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"|-0x20140901| + |-0x19700101| == 0x39840a02",
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{ 0x20, 0x14, 0x09, 0x01 }, 30, 1,
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{ 0x19, 0x70, 0x01, 0x01 }, 29, 1,
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{ 0x39, 0x84, 0x0a, 0x02 }, 30, 0,
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},
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{
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"simple carry, "
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"|0xffffffff| + |0x01| == 0x0100000000",
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{ 0xff, 0xff, 0xff, 0xff }, 32, 0,
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{ 0x01 }, 1, 0,
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{ 0x01, 0x00, 0x00, 0x00, 0x00 }, 33, 0,
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},
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{
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"complex carry, "
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"|0x0100000000ffffffff| + |0x01| == 0x010000000100000000",
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{ 0x01, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff }, 64, 0,
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{ 0x01 }, 1, 0,
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{ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, 64, 0,
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},
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};
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static int
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t_mpi_add_tc(char **desc CRYB_UNUSED, void *arg)
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{
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struct t_add_case *tc = arg;
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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cryb_mpi x = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_load(&a, tc->a, (tc->amsb + 7) / 8);
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a.neg = tc->aneg;
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mpi_load(&b, tc->b, (tc->bmsb + 7) / 8);
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b.neg = tc->bneg;
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mpi_load(&e, tc->e, (tc->emsb + 7) / 8);
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e.neg = tc->eneg;
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ret &= t_compare_i(0, mpi_add_abs(&x, &a, &b));
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ret &= t_compare_mpi(&e, &x);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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mpi_destroy(&x);
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return (ret);
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}
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/*
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* All operands are different
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*/
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static int
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t_mpi_add(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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cryb_mpi x = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_set(&b, 0x20140901);
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mpi_set(&e, 0x19700101 + 0x20140901);
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ret &= t_compare_i(0, mpi_add_abs(&x, &a, &b));
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ret &= t_compare_mpi(&e, &x);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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mpi_destroy(&x);
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return (ret);
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}
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/*
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* As above, but first allocation will fail
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*/
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static int
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t_mpi_add_fail1(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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cryb_mpi x = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_load(&a, large_v, sizeof large_v);
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mpi_set(&b, 0x19700101);
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mpi_set(&x, 0x20140901);
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mpi_set(&e, 0x20140901);
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++t_malloc_fail;
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ret &= t_compare_i(-1, mpi_add_abs(&x, &a, &b));
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--t_malloc_fail;
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ret &= t_compare_mpi(&e, &x);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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mpi_destroy(&x);
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return (ret);
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}
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/*
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* As above, but second allocation will fail
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*/
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static int
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t_mpi_add_fail2(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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cryb_mpi x = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_load(&b, large_v, sizeof large_v);
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mpi_set(&x, 0x20140901);
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mpi_set(&e, 0x20140901);
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++t_malloc_fail;
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ret &= t_compare_i(-1, mpi_add_abs(&x, &a, &b));
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--t_malloc_fail;
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ret &= t_compare_mpi(&e, &x);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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mpi_destroy(&x);
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return (ret);
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}
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/*
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* Target is the first operand
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*/
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static int
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t_mpi_add_b_to_a(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_set(&b, 0x20140901);
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mpi_set(&e, 0x19700101 + 0x20140901);
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ret &= t_compare_i(0, mpi_add_abs(&a, &a, &b));
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ret &= t_compare_mpi(&e, &a);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* As above, but allocation will fail
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*/
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static int
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t_mpi_add_b_to_a_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_load(&b, large_v, sizeof large_v);
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mpi_set(&e, 0x19700101);
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++t_malloc_fail;
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ret &= t_compare_i(-1, mpi_add_abs(&a, &a, &b));
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--t_malloc_fail;
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ret &= t_compare_mpi(&e, &a);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* Target is the first operand and both operands are equal
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*/
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static int
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t_mpi_add_b_to_a_equal(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_set(&b, 0x19700101);
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mpi_set(&e, 0x19700101 + 0x19700101);
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ret &= t_compare_i(0, mpi_add_abs(&a, &a, &b));
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ret &= t_compare_mpi(&e, &a);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* Target is the second operand
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*/
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static int
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t_mpi_add_a_to_b(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_set(&b, 0x20140901);
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mpi_set(&e, 0x19700101 + 0x20140901);
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ret &= t_compare_i(0, mpi_add_abs(&b, &a, &b));
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ret &= t_compare_mpi(&e, &b);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* As above, but allocation will fail
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*/
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static int
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t_mpi_add_a_to_b_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_load(&a, large_v, sizeof large_v);
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mpi_set(&b, 0x20140901);
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mpi_set(&e, 0x20140901);
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++t_malloc_fail;
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ret &= t_compare_i(-1, mpi_add_abs(&b, &a, &b));
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--t_malloc_fail;
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ret &= t_compare_mpi(&e, &b);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* Target is the second operand and both operands are equal
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*/
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static int
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t_mpi_add_a_to_b_equal(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_set(&b, 0x19700101);
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mpi_set(&e, 0x19700101 + 0x19700101);
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ret &= t_compare_i(0, mpi_add_abs(&b, &a, &b));
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ret &= t_compare_mpi(&e, &b);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* Target is both operands
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*/
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static int
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t_mpi_add_a_to_a(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_set(&e, 0x19700101 + 0x19700101);
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ret &= t_compare_i(0, mpi_add_abs(&a, &a, &a));
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ret &= t_compare_mpi(&e, &a);
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mpi_destroy(&a);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* As above, but allocation will fail
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*/
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static int
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t_mpi_add_a_to_a_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_load(&a, large_v, sizeof large_v);
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mpi_load(&e, large_v, sizeof large_v);
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++t_malloc_fail;
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ret &= t_compare_i(-1, mpi_add_abs(&a, &a, &a));
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--t_malloc_fail;
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ret &= t_compare_mpi(&e, &a);
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mpi_destroy(&a);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* Operands are the same
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*/
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static int
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t_mpi_add_a_and_a(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_set(&e, 0x19700101 + 0x19700101);
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ret &= t_compare_i(0, mpi_add_abs(&b, &a, &a));
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ret &= t_compare_mpi(&e, &b);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* As above, but allocation will fail
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*/
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static int
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t_mpi_add_a_and_a_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_load(&a, large_v, sizeof large_v);
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mpi_set(&b, 0x20140901);
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mpi_set(&e, 0x20140901);
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++t_malloc_fail;
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ret &= t_compare_i(-1, mpi_add_abs(&b, &a, &a));
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--t_malloc_fail;
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ret &= t_compare_mpi(&e, &b);
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mpi_destroy(&a);
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mpi_destroy(&b);
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return (ret);
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}
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/*
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* Target is the first operand, second operand is zero
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*/
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static int
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t_mpi_add_zero_to_a(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_set(&a, 0x19700101);
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mpi_zero(&b);
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mpi_copy(&e, &a);
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ret &= t_compare_i(0, mpi_add_abs(&a, &a, &b));
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ret &= t_compare_mpi(&e, &a);
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mpi_destroy(&a);
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mpi_destroy(&b);
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mpi_destroy(&e);
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return (ret);
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}
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/*
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* Target is the second operand, first operand is zero
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*/
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static int
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t_mpi_add_zero_to_b(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
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{
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cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
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int ret = 1;
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mpi_zero(&a);
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mpi_set(&b, 0x20140901);
|
||
mpi_copy(&e, &b);
|
||
ret &= t_compare_i(0, mpi_add_abs(&b, &a, &b));
|
||
ret &= t_compare_mpi(&e, &b);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
return (ret);
|
||
}
|
||
|
||
|
||
/***************************************************************************
|
||
* Subtraction
|
||
*/
|
||
|
||
static struct t_sub_case {
|
||
const char *desc;
|
||
uint8_t a[16];
|
||
size_t amsb;
|
||
int aneg:1;
|
||
uint8_t b[16];
|
||
size_t bmsb;
|
||
int bneg:1;
|
||
uint8_t e[16];
|
||
size_t emsb;
|
||
int eneg:1;
|
||
} t_sub_cases[] = {
|
||
{
|
||
"| |0| - |0| | == 0",
|
||
{ }, 0, 0,
|
||
{ }, 0, 0,
|
||
{ }, 0, 0,
|
||
},
|
||
{
|
||
"| |0| - |1| | == 1",
|
||
{ }, 0, 0,
|
||
{ 0x01 }, 1, 0,
|
||
{ 0x01 }, 1, 0,
|
||
},
|
||
{
|
||
"| |1| - |0| | == 1",
|
||
{ 0x01 }, 1, 0,
|
||
{ }, 0, 0,
|
||
{ 0x01 }, 1, 0,
|
||
},
|
||
{
|
||
"| |1| - |1| | == 0",
|
||
{ 0x01 }, 1, 0,
|
||
{ 0x01 }, 1, 0,
|
||
{ }, 0, 0,
|
||
},
|
||
{
|
||
"| |0| - |-1| | == 1",
|
||
{ }, 0, 0,
|
||
{ 0x01 }, 1, 1,
|
||
{ 0x01 }, 1, 0,
|
||
},
|
||
{
|
||
"| |-1| - |0| | == 1",
|
||
{ 0x01 }, 1, 1,
|
||
{ }, 0, 0,
|
||
{ 0x01 }, 1, 0,
|
||
},
|
||
{
|
||
"| |-1| - |-1| | == 0",
|
||
{ 0x01 }, 1, 1,
|
||
{ 0x01 }, 1, 1,
|
||
{ }, 0, 0,
|
||
},
|
||
{
|
||
"| |4| - |2| | == 2",
|
||
{ 0x04 }, 3, 0,
|
||
{ 0x02 }, 2, 0,
|
||
{ 0x02 }, 2, 0,
|
||
},
|
||
{
|
||
"| |2| - |4| | == 2",
|
||
{ 0x02 }, 2, 0,
|
||
{ 0x04 }, 3, 0,
|
||
{ 0x02 }, 2, 0,
|
||
},
|
||
{
|
||
"| |0x20140901| - |0x19700101| | == 0x6a40800",
|
||
{ 0x20, 0x14, 0x09, 0x01 }, 30, 0,
|
||
{ 0x19, 0x70, 0x01, 0x01 }, 29, 0,
|
||
{ 0x06, 0xa4, 0x08, 0x00 }, 27, 0,
|
||
},
|
||
{
|
||
"| |-0x20140901| - |0x19700101| | == 0x6a40800",
|
||
{ 0x20, 0x14, 0x09, 0x01 }, 30, 1,
|
||
{ 0x19, 0x70, 0x01, 0x01 }, 29, 0,
|
||
{ 0x06, 0xa4, 0x08, 0x00 }, 27, 0,
|
||
},
|
||
{
|
||
"| |0x20140901| - |-0x19700101| | == 0x6a40800",
|
||
{ 0x20, 0x14, 0x09, 0x01 }, 30, 0,
|
||
{ 0x19, 0x70, 0x01, 0x01 }, 29, 1,
|
||
{ 0x06, 0xa4, 0x08, 0x00 }, 27, 0,
|
||
},
|
||
{
|
||
"| |-0x20140901| - |-0x19700101| | == 0x6a40800",
|
||
{ 0x20, 0x14, 0x09, 0x01 }, 30, 1,
|
||
{ 0x19, 0x70, 0x01, 0x01 }, 29, 1,
|
||
{ 0x06, 0xa4, 0x08, 0x00 }, 27, 0,
|
||
},
|
||
{
|
||
"0x120140901 - 0x119700101 == 0x6a40800",
|
||
{ 0x01, 0x20, 0x14, 0x09, 0x01 }, 33, 0,
|
||
{ 0x01, 0x19, 0x70, 0x01, 0x01 }, 33, 0,
|
||
{ 0x06, 0xa4, 0x08, 0x00 }, 27, 0,
|
||
},
|
||
{
|
||
"0x119700101 - 0x120140901 == 0x6a40800",
|
||
{ 0x01, 0x19, 0x70, 0x01, 0x01 }, 33, 0,
|
||
{ 0x01, 0x20, 0x14, 0x09, 0x01 }, 33, 0,
|
||
{ 0x06, 0xa4, 0x08, 0x00 }, 27, 0,
|
||
},
|
||
{
|
||
"simple carry, "
|
||
"0x1000000000 - 0xfffffffff == 0x01",
|
||
{ 0x10, 0x00, 0x00, 0x00, 0x00 }, 37, 0,
|
||
{ 0x0f, 0xff, 0xff, 0xff, 0xff }, 36, 0,
|
||
{ 0x01 }, 1, 0,
|
||
},
|
||
{
|
||
"simple carry, "
|
||
"0x1000000000 - 0x01 == 0xfffffffff",
|
||
{ 0x10, 0x00, 0x00, 0x00, 0x00 }, 37, 0,
|
||
{ 0x01 }, 1, 0,
|
||
{ 0x0f, 0xff, 0xff, 0xff, 0xff }, 36, 0,
|
||
},
|
||
{
|
||
"complex carry, "
|
||
"0x010000000000000000 - 0xffffffffffffffff == 0x01",
|
||
{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 65, 0,
|
||
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }, 64, 0,
|
||
{ 0x01 }, 1, 0,
|
||
},
|
||
{
|
||
"complex carry, "
|
||
"0x010000000000000000 - 0x01 == 0xffffffffffffffff",
|
||
{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 65, 0,
|
||
{ 0x01 }, 1, 0,
|
||
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }, 64, 0,
|
||
},
|
||
};
|
||
|
||
static int
|
||
t_mpi_sub_tc(char **desc CRYB_UNUSED, void *arg)
|
||
{
|
||
struct t_sub_case *tc = arg;
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
cryb_mpi x = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_load(&a, tc->a, (tc->amsb + 7) / 8);
|
||
a.neg = tc->aneg;
|
||
mpi_load(&b, tc->b, (tc->bmsb + 7) / 8);
|
||
b.neg = tc->bneg;
|
||
mpi_load(&e, tc->e, (tc->emsb + 7) / 8);
|
||
e.neg = tc->eneg;
|
||
ret &= t_compare_i(0, mpi_sub_abs(&x, &a, &b));
|
||
ret &= t_compare_mpi(&e, &x);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
mpi_destroy(&x);
|
||
return (ret);
|
||
}
|
||
|
||
/*
|
||
* All operands are different
|
||
*/
|
||
static int
|
||
t_mpi_sub(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
cryb_mpi x = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_set(&a, 0x19700101);
|
||
mpi_set(&b, 0x20140901);
|
||
mpi_set(&e, 0x20140901 - 0x19700101);
|
||
ret &= t_compare_i(0, mpi_sub_abs(&x, &a, &b));
|
||
ret &= t_compare_mpi(&e, &x);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
mpi_destroy(&x);
|
||
return (ret);
|
||
}
|
||
|
||
/*
|
||
* As above, but allocation will fail
|
||
*/
|
||
static int
|
||
t_mpi_sub_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
cryb_mpi x = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_load(&a, small_v, sizeof small_v);
|
||
mpi_load(&b, large_v, sizeof large_v);
|
||
mpi_set(&x, 0x20140901);
|
||
mpi_set(&e, 0x20140901);
|
||
++t_malloc_fail;
|
||
ret &= t_compare_i(-1, mpi_sub_abs(&x, &a, &b));
|
||
--t_malloc_fail;
|
||
ret &= t_compare_mpi(&e, &x);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
mpi_destroy(&x);
|
||
return (ret);
|
||
}
|
||
|
||
|
||
/*
|
||
* Target is the first operand
|
||
*/
|
||
static int
|
||
t_mpi_sub_b_from_a(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_set(&a, 0x20140901);
|
||
mpi_set(&b, 0x19700101);
|
||
mpi_set(&e, 0x20140901 - 0x19700101);
|
||
ret &= t_compare_i(0, mpi_sub_abs(&a, &a, &b));
|
||
ret &= t_compare_mpi(&e, &a);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
return (ret);
|
||
}
|
||
|
||
/*
|
||
* As above, but allocation will fail
|
||
*/
|
||
static int
|
||
t_mpi_sub_b_from_a_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_set(&a, 0x19700101);
|
||
mpi_load(&b, large_v, sizeof large_v);
|
||
mpi_set(&e, 0x19700101);
|
||
++t_malloc_fail;
|
||
ret &= t_compare_i(-1, mpi_sub_abs(&a, &a, &b));
|
||
--t_malloc_fail;
|
||
ret &= t_compare_mpi(&e, &a);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
return (ret);
|
||
}
|
||
|
||
/*
|
||
* Target is the second operand
|
||
*/
|
||
static int
|
||
t_mpi_sub_a_from_b(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_set(&a, 0x19700101);
|
||
mpi_set(&b, 0x20140901);
|
||
mpi_set(&e, 0x20140901 - 0x19700101);
|
||
ret &= t_compare_i(0, mpi_sub_abs(&b, &a, &b));
|
||
ret &= t_compare_mpi(&e, &b);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
return (ret);
|
||
}
|
||
|
||
/*
|
||
* As above, but allocation will fail
|
||
*/
|
||
static int
|
||
t_mpi_sub_a_from_b_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_load(&a, large_v, sizeof large_v);
|
||
mpi_set(&b, 0x20140901);
|
||
mpi_set(&e, 0x20140901);
|
||
++t_malloc_fail;
|
||
ret &= t_compare_i(-1, mpi_sub_abs(&b, &a, &b));
|
||
--t_malloc_fail;
|
||
ret &= t_compare_mpi(&e, &b);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
return (ret);
|
||
}
|
||
|
||
/*
|
||
* Target is both operands
|
||
*/
|
||
static int
|
||
t_mpi_sub_a_from_a(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_set(&a, 0x19700101);
|
||
mpi_set(&e, 0);
|
||
ret &= t_compare_i(0, mpi_sub_abs(&a, &a, &a));
|
||
ret &= t_compare_mpi(&e, &a);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&e);
|
||
return (ret);
|
||
}
|
||
|
||
/*
|
||
* Target is the first operand, second operand is zero
|
||
*/
|
||
static int
|
||
t_mpi_sub_zero_from_a(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_set(&a, 0x20140901);
|
||
mpi_set(&e, 0x20140901);
|
||
ret &= t_compare_i(0, mpi_sub_abs(&a, &a, &b));
|
||
ret &= t_compare_mpi(&e, &a);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&e);
|
||
return (ret);
|
||
}
|
||
|
||
/*
|
||
* Target is the second operand, first operand is zero
|
||
*/
|
||
static int
|
||
t_mpi_sub_b_from_zero(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_set(&b, 0x20140901);
|
||
mpi_set(&e, 0x20140901);
|
||
ret &= t_compare_i(0, mpi_sub_abs(&b, &a, &b));
|
||
ret &= t_compare_mpi(&e, &b);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
return (ret);
|
||
}
|
||
|
||
/*
|
||
* Target is negative
|
||
*/
|
||
static int
|
||
t_mpi_sub_neg_target(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
|
||
{
|
||
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
|
||
cryb_mpi x = CRYB_MPI_ZERO;
|
||
int ret = 1;
|
||
|
||
mpi_set(&a, 0x20140901);
|
||
mpi_set(&b, 0x19700101);
|
||
mpi_set(&e, 0x20140901 - 0x19700101);
|
||
mpi_set(&x, -1);
|
||
ret &= t_compare_i(0, mpi_sub_abs(&x, &a, &b));
|
||
ret &= t_compare_mpi(&e, &x);
|
||
mpi_destroy(&a);
|
||
mpi_destroy(&b);
|
||
mpi_destroy(&e);
|
||
mpi_destroy(&x);
|
||
return (ret);
|
||
}
|
||
|
||
|
||
/***************************************************************************
|
||
* Boilerplate
|
||
*/
|
||
|
||
static int
|
||
t_prepare(int argc, char *argv[])
|
||
{
|
||
unsigned int i;
|
||
|
||
(void)argc;
|
||
(void)argv;
|
||
|
||
t_mpi_prepare();
|
||
|
||
/* addition */
|
||
for (i = 0; i < sizeof t_add_cases / sizeof t_add_cases[0]; ++i)
|
||
t_add_test(t_mpi_add_tc, &t_add_cases[i],
|
||
"%s", t_add_cases[i].desc);
|
||
t_add_test(t_mpi_add, NULL, "x = a + b");
|
||
t_add_test(t_mpi_add_fail1, NULL, "x = a + b (failure 1)");
|
||
t_add_test(t_mpi_add_fail2, NULL, "x = a + b (failure 2)");
|
||
t_add_test(t_mpi_add_b_to_a, NULL, "a = a + b");
|
||
t_add_test(t_mpi_add_b_to_a_fail, NULL, "a = a + b (failure)");
|
||
t_add_test(t_mpi_add_b_to_a_equal, NULL, "a = a + b (a == b)");
|
||
t_add_test(t_mpi_add_a_to_b, NULL, "b = a + b");
|
||
t_add_test(t_mpi_add_a_to_b_fail, NULL, "b = a + b (failure)");
|
||
t_add_test(t_mpi_add_a_to_b_equal, NULL, "b = a + b (a == b)");
|
||
t_add_test(t_mpi_add_a_to_a, NULL, "a = a + a");
|
||
t_add_test(t_mpi_add_a_to_a_fail, NULL, "a = a + a (failure)");
|
||
t_add_test(t_mpi_add_a_and_a, NULL, "b = a + a");
|
||
t_add_test(t_mpi_add_a_and_a_fail, NULL, "b = a + a (failure)");
|
||
t_add_test(t_mpi_add_zero_to_a, NULL, "a = a + 0");
|
||
t_add_test(t_mpi_add_zero_to_b, NULL, "b = 0 + b");
|
||
|
||
/* subtraction */
|
||
for (i = 0; i < sizeof t_sub_cases / sizeof t_sub_cases[0]; ++i)
|
||
t_add_test(t_mpi_sub_tc, &t_sub_cases[i],
|
||
"%s", t_sub_cases[i].desc);
|
||
t_add_test(t_mpi_sub, NULL, "x = a - b");
|
||
t_add_test(t_mpi_sub_fail, NULL, "x = a - b (failure)");
|
||
t_add_test(t_mpi_sub_b_from_a, NULL, "a = a - b");
|
||
t_add_test(t_mpi_sub_b_from_a_fail, NULL, "a = a - b (failure)");
|
||
t_add_test(t_mpi_sub_a_from_b, NULL, "b = a - b");
|
||
t_add_test(t_mpi_sub_a_from_b_fail, NULL, "b = a - b (failure)");
|
||
t_add_test(t_mpi_sub_a_from_a, NULL, "a = a - a");
|
||
t_add_test(t_mpi_sub_b_from_zero, NULL, "b = 0 - b");
|
||
t_add_test(t_mpi_sub_zero_from_a, NULL, "a = a - z");
|
||
t_add_test(t_mpi_sub_neg_target, NULL, "x = a - b (x initially < 0)");
|
||
|
||
return (0);
|
||
}
|
||
|
||
static void
|
||
t_cleanup(void)
|
||
{
|
||
|
||
t_mpi_cleanup();
|
||
}
|
||
|
||
int
|
||
main(int argc, char *argv[])
|
||
{
|
||
|
||
t_main(t_prepare, t_cleanup, argc, argv);
|
||
}
|