v / thirdparty / mbedtls / library / bignum_core_invasive.h
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1/**


2 * \file bignum_core_invasive.h


3 *


4 * \brief Function declarations for invasive functions of bignum core.


5 */


6/**


7 *  Copyright The Mbed TLS Contributors


8 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later


9 */


10


11#ifndef MBEDTLS_BIGNUM_CORE_INVASIVE_H


12#define MBEDTLS_BIGNUM_CORE_INVASIVE_H


13


14#include "bignum_core.h"


15


16#if defined(MBEDTLS_TEST_HOOKS)


17


18#if !defined(MBEDTLS_THREADING_C)


19


20extern void (*mbedtls_safe_codepath_hook)(void);


21extern void (*mbedtls_unsafe_codepath_hook)(void);


22


23#endif /* !MBEDTLS_THREADING_C */


24


25/** Divide X by 2 mod N in place, assuming N is odd.


26 *


27 * \param[in,out] X     The value to divide by 2 mod \p N.


28 * \param[in]     N     The modulus. Must be odd.


29 * \param[in]     limbs The number of limbs in \p X and \p N.


30 */


31MBEDTLS_STATIC_TESTABLE


32void mbedtls_mpi_core_div2_mod_odd(mbedtls_mpi_uint *X,


33                                   const mbedtls_mpi_uint *N,


34                                   size_t limbs);


35


36#endif /* MBEDTLS_TEST_HOOKS */


37


38#endif /* MBEDTLS_BIGNUM_CORE_INVASIVE_H */


39