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/* test_wolfmath.c
*
* Copyright (C) 2006-2025 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL 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 3 of the License, or
* (at your option) any later version.
*
* wolfSSL 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#include <tests/unit.h>
#ifdef NO_INLINE
#include <wolfssl/wolfcrypt/misc.h>
#else
#define WOLFSSL_MISC_INCLUDED
#include <wolfcrypt/src/misc.c>
#endif
#include <wolfssl/wolfcrypt/wolfmath.h>
#include <wolfssl/wolfcrypt/types.h>
#include <tests/api/api.h>
#include <tests/api/test_wolfmath.h>
/*
* Testing mp_get_digit_count
*/
int test_mp_get_digit_count(void)
{
EXPECT_DECLS;
#if !defined(WOLFSSL_SP_MATH) && defined(WOLFSSL_PUBLIC_MP)
mp_int a;
XMEMSET(&a, 0, sizeof(mp_int));
ExpectIntEQ(mp_init(&a), 0);
ExpectIntEQ(mp_get_digit_count(NULL), 0);
ExpectIntEQ(mp_get_digit_count(&a), 0);
mp_clear(&a);
#endif
return EXPECT_RESULT();
} /* End test_get_digit_count */
/*
* Testing mp_get_digit
*/
int test_mp_get_digit(void)
{
EXPECT_DECLS;
#if defined(WOLFSSL_PUBLIC_MP)
mp_int a;
int n = 0;
XMEMSET(&a, 0, sizeof(mp_int));
ExpectIntEQ(mp_init(&a), MP_OKAY);
ExpectIntEQ(mp_get_digit(NULL, n), 0);
ExpectIntEQ(mp_get_digit(&a, n), 0);
mp_clear(&a);
#endif
return EXPECT_RESULT();
} /* End test_get_digit */
/*
* Testing mp_get_rand_digit
*/
int test_mp_get_rand_digit(void)
{
EXPECT_DECLS;
#if !defined(WC_NO_RNG) && defined(WOLFSSL_PUBLIC_MP)
WC_RNG rng;
mp_digit d;
XMEMSET(&rng, 0, sizeof(WC_RNG));
ExpectIntEQ(wc_InitRng(&rng), 0);
ExpectIntEQ(mp_get_rand_digit(&rng, &d), 0);
ExpectIntEQ(mp_get_rand_digit(NULL, NULL), WC_NO_ERR_TRACE(BAD_FUNC_ARG));
ExpectIntEQ(mp_get_rand_digit(NULL, &d), WC_NO_ERR_TRACE(BAD_FUNC_ARG));
ExpectIntEQ(mp_get_rand_digit(&rng, NULL), WC_NO_ERR_TRACE(BAD_FUNC_ARG));
DoExpectIntEQ(wc_FreeRng(&rng), 0);
#endif
return EXPECT_RESULT();
} /* End test_get_rand_digit */
/*
* Testing mp_cond_copy
*/
int test_mp_cond_copy(void)
{
EXPECT_DECLS;
#if (defined(HAVE_ECC) || defined(WOLFSSL_MP_COND_COPY)) && \
defined(WOLFSSL_PUBLIC_MP)
mp_int a;
mp_int b;
int copy = 0;
XMEMSET(&a, 0, sizeof(mp_int));
XMEMSET(&b, 0, sizeof(mp_int));
ExpectIntEQ(mp_init(&a), MP_OKAY);
ExpectIntEQ(mp_init(&b), MP_OKAY);
ExpectIntEQ(mp_cond_copy(NULL, copy, NULL), WC_NO_ERR_TRACE(BAD_FUNC_ARG));
ExpectIntEQ(mp_cond_copy(NULL, copy, &b), WC_NO_ERR_TRACE(BAD_FUNC_ARG));
ExpectIntEQ(mp_cond_copy(&a, copy, NULL), WC_NO_ERR_TRACE(BAD_FUNC_ARG));
ExpectIntEQ(mp_cond_copy(&a, copy, &b), 0);
mp_clear(&a);
mp_clear(&b);
#endif
return EXPECT_RESULT();
} /* End test_mp_cond_copy */
/*
* Testing mp_rand
*/
int test_mp_rand(void)
{
EXPECT_DECLS;
#if defined(WC_RSA_BLINDING) && defined(WOLFSSL_PUBLIC_MP)
mp_int a;
WC_RNG rng;
int digits = 1;
XMEMSET(&a, 0, sizeof(mp_int));
XMEMSET(&rng, 0, sizeof(WC_RNG));
ExpectIntEQ(mp_init(&a), MP_OKAY);
ExpectIntEQ(wc_InitRng(&rng), 0);
ExpectIntEQ(mp_rand(&a, digits, NULL), WC_NO_ERR_TRACE(MISSING_RNG_E));
ExpectIntEQ(mp_rand(NULL, digits, &rng), WC_NO_ERR_TRACE(BAD_FUNC_ARG));
ExpectIntEQ(mp_rand(&a, 0, &rng), WC_NO_ERR_TRACE(BAD_FUNC_ARG));
ExpectIntEQ(mp_rand(&a, digits, &rng), 0);
mp_clear(&a);
DoExpectIntEQ(wc_FreeRng(&rng), 0);
#endif
return EXPECT_RESULT();
} /* End test_mp_rand */
/*
* Testing wc_export_int
*/
int test_wc_export_int(void)
{
EXPECT_DECLS;
#if (defined(HAVE_ECC) || defined(WOLFSSL_EXPORT_INT)) && \
defined(WOLFSSL_PUBLIC_MP)
mp_int mp;
byte buf[32];
word32 keySz = (word32)sizeof(buf);
word32 len = (word32)sizeof(buf);
XMEMSET(&mp, 0, sizeof(mp_int));
ExpectIntEQ(mp_init(&mp), MP_OKAY);
ExpectIntEQ(mp_set(&mp, 1234), 0);
ExpectIntEQ(wc_export_int(NULL, buf, &len, keySz, WC_TYPE_UNSIGNED_BIN),
WC_NO_ERR_TRACE(BAD_FUNC_ARG));
len = sizeof(buf)-1;
ExpectIntEQ(wc_export_int(&mp, buf, &len, keySz, WC_TYPE_UNSIGNED_BIN),
WC_NO_ERR_TRACE(BUFFER_E));
len = sizeof(buf);
ExpectIntEQ(wc_export_int(&mp, buf, &len, keySz, WC_TYPE_UNSIGNED_BIN), 0);
len = 4; /* test input too small */
ExpectIntEQ(wc_export_int(&mp, buf, &len, 0, WC_TYPE_HEX_STR),
WC_NO_ERR_TRACE(BUFFER_E));
len = sizeof(buf);
ExpectIntEQ(wc_export_int(&mp, buf, &len, 0, WC_TYPE_HEX_STR), 0);
/* hex version of 1234 is 04D2 and should be 4 digits + 1 null */
ExpectIntEQ(len, 5);
mp_clear(&mp);
#endif
return EXPECT_RESULT();
} /* End test_wc_export_int */
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