70cc374382
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@21047 ec53bebd-3082-4978-b11e-865c3cabbd6b
359 lines
6.7 KiB
C
359 lines
6.7 KiB
C
/*
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* Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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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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*
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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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*
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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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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef RCSID
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RCSID("$Id$");
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#endif
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#include <sys/types.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <bn.h>
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#include <rand.h>
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static int
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set_get(unsigned long num)
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{
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BIGNUM *bn;
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bn = BN_new();
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if (!BN_set_word(bn, num))
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return 1;
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if (BN_get_word(bn) != num)
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return 1;
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BN_free(bn);
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return 0;
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}
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#define CHECK(x) do { ret += x; } while(0)
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static int
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test_BN_set_get(void)
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{
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int ret = 0;
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CHECK(set_get(0));
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CHECK(set_get(1));
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CHECK(set_get(0xff));
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CHECK(set_get(0x1ff));
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CHECK(set_get(0xffff));
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CHECK(set_get(0xf000));
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CHECK(set_get(ULONG_MAX / 2));
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CHECK(set_get(ULONG_MAX - 1));
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return ret;
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}
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static int
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test_BN_bit(void)
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{
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BIGNUM *bn;
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int ret = 0;
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bn = BN_new();
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/* test setting and getting of "word" */
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if (!BN_set_word(bn, 1))
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return 1;
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if (!BN_is_bit_set(bn, 0))
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ret += 1;
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if (!BN_is_bit_set(bn, 0))
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ret += 1;
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if (!BN_set_word(bn, 2))
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return 1;
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if (!BN_is_bit_set(bn, 1))
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ret += 1;
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if (!BN_set_word(bn, 3))
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return 1;
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if (!BN_is_bit_set(bn, 0))
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ret += 1;
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if (!BN_is_bit_set(bn, 1))
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ret += 1;
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if (!BN_set_word(bn, 0x100))
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return 1;
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if (!BN_is_bit_set(bn, 8))
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ret += 1;
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if (!BN_set_word(bn, 0x1000))
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return 1;
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if (!BN_is_bit_set(bn, 12))
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ret += 1;
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/* test bitsetting */
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if (!BN_set_word(bn, 1))
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return 1;
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if (!BN_set_bit(bn, 1))
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return 1;
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if (BN_get_word(bn) != 3)
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return 1;
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if (!BN_clear_bit(bn, 0))
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return 1;
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if (BN_get_word(bn) != 2)
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return 1;
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/* test bitsetting past end of current end */
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BN_clear(bn);
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if (!BN_set_bit(bn, 12))
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return 1;
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if (BN_get_word(bn) != 0x1000)
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return 1;
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/* test bit and byte counting functions */
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if (BN_num_bits(bn) != 13)
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return 1;
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if (BN_num_bytes(bn) != 2)
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return 1;
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BN_free(bn);
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return ret;
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}
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struct ietest {
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char *data;
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size_t len;
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unsigned long num;
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} ietests[] = {
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{ "", 0, 0 },
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{ "\x01", 1, 1 },
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{ "\x02", 1, 2 },
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{ "\xf2", 1, 0xf2 },
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{ "\x01\x00", 2, 256 }
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};
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static int
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test_BN_import_export(void)
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{
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BIGNUM *bn;
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int ret = 0;
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int i;
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bn = BN_new();
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for (i = 0; i < sizeof(ietests)/sizeof(ietests[0]); i++) {
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size_t len;
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unsigned char *p;
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if (!BN_bin2bn((unsigned char*)ietests[i].data, ietests[i].len, bn))
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return 1;
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if (BN_get_word(bn) != ietests[i].num)
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return 1;
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len = BN_num_bytes(bn);
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if (len != ietests[i].len)
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return 1;
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p = malloc(len + 1);
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p[len] = 0xf4;
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BN_bn2bin(bn, p);
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if (p[len] != 0xf4)
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return 1;
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if (memcmp(p, ietests[i].data, ietests[i].len) != 0)
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return 1;
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free(p);
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}
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BN_free(bn);
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return ret;
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}
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static int
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test_BN_uadd(void)
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{
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BIGNUM *a, *b, *c;
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char *p;
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a = BN_new();
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b = BN_new();
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c = BN_new();
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BN_set_word(a, 1);
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BN_set_word(b, 2);
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BN_uadd(c, a, b);
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if (BN_get_word(c) != 3)
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return 1;
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BN_uadd(c, b, a);
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if (BN_get_word(c) != 3)
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return 1;
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BN_set_word(b, 0xff);
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BN_uadd(c, a, b);
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if (BN_get_word(c) != 0x100)
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return 1;
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BN_uadd(c, b, a);
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if (BN_get_word(c) != 0x100)
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return 1;
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BN_set_word(a, 0xff);
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BN_uadd(c, a, b);
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if (BN_get_word(c) != 0x1fe)
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return 1;
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BN_uadd(c, b, a);
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if (BN_get_word(c) != 0x1fe)
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return 1;
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BN_free(a);
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BN_free(b);
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BN_hex2bn(&a, "50212A3B611D46642C825A16A354CE0FD4D85DD2");
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BN_hex2bn(&b, "84B6C7E8D28ACA1614954DA");
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BN_uadd(c, b, a);
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p = BN_bn2hex(c);
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if (strcmp(p, "50212A3B611D466434CDC695307D7AB13621B2AC") != 0) {
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free(p);
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return 1;
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}
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free(p);
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BN_uadd(c, a, b);
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p = BN_bn2hex(c);
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if (strcmp(p, "50212A3B611D466434CDC695307D7AB13621B2AC") != 0) {
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free(p);
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return 1;
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}
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free(p);
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BN_free(a);
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BN_free(b);
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BN_free(c);
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return 0;
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}
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static int
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test_BN_cmp(void)
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{
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BIGNUM *a, *b;
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a = BN_new();
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b = BN_new();
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if (!BN_set_word(a, 1))
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return 1;
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if (!BN_set_word(b, 1))
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return 1;
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if (BN_cmp(a, b) != 0)
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return 1;
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if (BN_cmp(b, a) != 0)
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return 1;
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if (!BN_set_word(b, 2))
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return 1;
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if (BN_cmp(a, b) >= 0)
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return 1;
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if (BN_cmp(b, a) <= 0)
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return 1;
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BN_set_negative(b, 1);
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if (BN_cmp(a, b) <= 0)
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return 1;
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if (BN_cmp(b, a) >= 0)
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return 1;
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BN_free(a);
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BN_free(b);
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BN_hex2bn(&a, "50212A3B611D46642C825A16A354CE0FD4D85DD1");
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BN_hex2bn(&b, "50212A3B611D46642C825A16A354CE0FD4D85DD2");
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if (BN_cmp(a, b) >= 0)
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return 1;
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if (BN_cmp(b, a) <= 0)
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return 1;
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BN_set_negative(b, 1);
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if (BN_cmp(a, b) <= 0)
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return 1;
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if (BN_cmp(b, a) >= 0)
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return 1;
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BN_free(a);
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BN_free(b);
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return 0;
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}
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static int
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test_BN_rand(void)
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{
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BIGNUM *bn;
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if (RAND_status() != 1)
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return 0;
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bn = BN_new();
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if (bn == NULL)
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return 1;
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if (!BN_rand(bn, 1024, 0, 0))
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return 1;
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BN_free(bn);
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return 0;
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}
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int
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main(int argc, char **argv)
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{
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int ret = 0;
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ret += test_BN_set_get();
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ret += test_BN_bit();
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ret += test_BN_import_export();
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ret += test_BN_uadd();
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ret += test_BN_cmp();
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ret += test_BN_rand();
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return ret;
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}
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