463 lines
20 KiB
C
463 lines
20 KiB
C
/*
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* Original file:
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* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
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* All rights reserved.
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*
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* Port to Contiki:
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* Authors: Andreas Dröscher <contiki@anticat.ch>
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* Hu Luo
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* Hossein Shafagh <shafagh@inf.ethz.ch>
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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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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \addtogroup cc2538-pka
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* @{
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*
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* \defgroup cc2538-bignum cc2538 BigNum math function driver
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*
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* Driver for the cc2538 BigNum math functions of the PKC engine
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* @{
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*
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* \file
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* Header file for the cc2538 BigNum driver
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*
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* bignum_subtract_start bignum_subtract_get_result (subtraction)
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* bignum_add_start bignum_add_get_result (addition)
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* bignum_mod_start bignum_mod_get_result (modulo)
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* bignum_exp_mod_start bignum_exp_mod_get_result (modular exponentiation operation)
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* bignum_inv_mod_start bignum_inv_mod_get_result (inverse modulo operation)
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* bignum_mul_start bignum_mul_get_result (multiplication)
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* bignum_divide_start bignum_divide_get_result (division)
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* bignum_cmp_start bignum_cmp_get_result (comparison)
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*/
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#ifndef BIGNUM_DRIVER_H_
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#define BIGNUM_DRIVER_H_
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#include "contiki.h"
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#include "dev/pka.h"
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#include <stdint.h>
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \brief Starts the big number modulus operation.
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*
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* \param number Pointer to the big number on which modulo operation
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* needs to be carried out.
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* \param number_size Size of the big number \sa number in 32-bit word.
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* \param modulus Pointer to the divisor.
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* \param modulus_size Size of the divisor \sa modulus.
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* \param result_vector Pointer to the result vector location
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* which will be set by this function.
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* \param process Process to be polled upon completion of the
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* operation, or \c NULL
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*
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* This function starts the modulo operation on the big num \sa number
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* using the divisor \sa modulus. The PKA RAM location where the result
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* will be available is stored in \sa result_vector.
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*
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* \retval PKA_STATUS_SUCCESS if successful in starting the operation.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* some other operation.
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*/
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uint8_t bignum_mod_start(const uint32_t *number,
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const uint8_t number_size,
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const uint32_t *modulus,
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const uint8_t modulus_size,
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uint32_t *result_vector,
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struct process *process);
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/** \brief Gets the result of the big number modulus operation.
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*
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* \param buffer Pointer to buffer where the result needs to
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* be stored.
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* \param buffer_size Size of the provided buffer in 32 bit size word.
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* \param result_vector Address of the result location which
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* was provided by the start function \sa PKABigNumModStart().
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*
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* This function gets the result of the big number modulus operation which was
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* previously started using the function \sa PKABigNumModStart().
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*
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* \retval PKA_STATUS_SUCCESS if successful.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* the operation.
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* \retval PKA_STATUS_RESULT_0 if the result is all zeroes.
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* \retval PKA_STATUS_BUF_UNDERFLOW if the \e size is less than the length
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* of the result.
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*/
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uint8_t bignum_mod_get_result(uint32_t *buffer,
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const uint8_t buffer_size,
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const uint32_t result_vector);
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/** \brief Starts the comparison of two big numbers.
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*
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* \param number1 Pointer to the first big number.
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* \param number2 Pointer to the second big number.
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* \param size Size of the big number in 32 bit size word.
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* \param process Process to be polled upon completion of the
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* operation, or \c NULL
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*
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* This function starts the comparison of two big numbers pointed by
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* \e number1 and \e number2.
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* Note this function expects the size of the two big numbers equal.
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*
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* \retval PKA_STATUS_SUCCESS if successful in starting the operation.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* some other operation.
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*/
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uint8_t bignum_cmp_start(const uint32_t *number1,
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const uint32_t *number2,
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uint8_t size,
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struct process *process);
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/** \brief Gets the result of the comparison operation of two big numbers.
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*
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* This function provides the results of the comparison of two big numbers
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* which was started using the \sa PKABigNumCmpStart().
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*
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* \retval PKA_STATUS_OPERATION_INPRG if the operation is in progress.
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* \retval PKA_STATUS_SUCCESS if the two big numbers are equal.
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* \retval PKA_STATUS_A_GR_B if the first number is greater than the second.
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* \retval PKA_STATUS_A_LT_B if the first number is less than the second.
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*/
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uint8_t bignum_cmp_get_result(void);
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/** \brief Starts the big number inverse modulo operation.
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*
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* \param number Pointer to the buffer containing the big number
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* (dividend).
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* \param number_size Size of the \e number in 32 bit word.
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* \param modulus Pointer to the buffer containing the modulus.
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* \param modulus_size Size of the modulus in 32 bit word.
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* \param result_vector Pointer to the result vector location
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* which will be set by this function.
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* \param process Process to be polled upon completion of the
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* operation, or \c NULL
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*
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* This function starts the the inverse modulo operation on \e number
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* using the divisor \e modulus.
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*
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* \retval PKA_STATUS_SUCCESS if successful in starting the operation.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* some other operation.
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*/
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uint8_t bignum_inv_mod_start(const uint32_t *number,
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const uint8_t number_size,
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const uint32_t *modulus,
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const uint8_t modulus_size,
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uint32_t *result_vector,
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struct process *process);
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/** \brief Gets the result of the big number inverse modulo operation.
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*
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* \param buffer Pointer to buffer where the result needs to be
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* stored.
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* \param buffer_size Size of the provided buffer in 32 bit size
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* word.
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* \param result_vector Address of the result location which
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* was provided by the start function \sa PKABigNumInvModStart().
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*
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* This function gets the result of the big number inverse modulo operation
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* previously started using the function \sa PKABigNumInvModStart().
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*
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* \retval PKA_STATUS_SUCCESS if the operation is successful.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy performing
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* the operation.
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* \retval PKA_STATUS_RESULT_0 if the result is all zeroes.
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* \retval PKA_STATUS_BUF_UNDERFLOW if the length of the provided buffer is less
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* then the result.
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*/
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uint8_t bignum_inv_mod_get_result(uint32_t *buffer,
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const uint8_t buffer_size,
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const uint32_t result_vector);
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/** \brief Starts the big number multiplication.
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*
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* \param multiplicand Pointer to the buffer containing the big
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* number multiplicand.
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* \param multiplicand_size Size of the multiplicand in 32-bit word.
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* \param multiplier Pointer to the buffer containing the big
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* number multiplier.
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* \param multiplier_size Size of the multiplier in 32-bit word.
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* \param result_vector Pointer to the result vector location
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* which will be set by this function.
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* \param process Process to be polled upon completion of the
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* operation, or \c NULL
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*
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* This function starts the multiplication of the two big numbers.
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*
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* \retval PKA_STATUS_SUCCESS if successful in starting the operation.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* some other operation.
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*/
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uint8_t bignum_mul_start(const uint32_t *multiplicand,
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const uint8_t multiplicand_size,
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const uint32_t *multiplier,
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const uint8_t multiplier_size,
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uint32_t *result_vector,
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struct process *process);
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/** \brief Gets the results of the big number multiplication.
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*
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* \param buffer Pointer to buffer where the result needs to be stored.
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* \param buffer_size Address of the variable containing the length of the
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* buffer. After the operation, the actual length of the resultant is
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* stored at this address.
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* \param result_vector Address of the result location which
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* was provided by the start function \sa PKABigNumMultiplyStart().
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*
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* This function gets the result of the multiplication of two big numbers
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* operation previously started using the function \sa
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* PKABigNumMultiplyStart().
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*
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* \retval PKA_STATUS_SUCCESS if the operation is successful.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy performing
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* the operation.
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* \retval PKA_STATUS_RESULT_0 if the result is all zeroes.
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* \retval PKA_STATUS_FAILURE if the operation is not successful.
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* \retval PKA_STATUS_BUF_UNDERFLOW if the length of the provided buffer is less
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* then the length of the result.
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*/
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uint8_t bignum_mul_get_result(uint32_t *buffer,
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uint32_t *buffer_size,
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const uint32_t result_vector);
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/** \brief Starts the addition of two big number.
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*
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* \param number1 Pointer to the buffer containing the first big mumber.
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* \param number1_size Size of the first big number in 32-bit word.
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* \param number2 Pointer to the buffer containing the second big number.
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* \param number2_size Size of the second big number in 32-bit word.
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* \param result_vector Pointer to the result vector location
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* which will be set by this function.
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* \param process Process to be polled upon completion of the
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* operation, or \c NULL
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*
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* This function starts the addition of the two big numbers.
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*
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* \retval PKA_STATUS_SUCCESS if successful in starting the operation.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* some other operation.
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*/
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uint8_t bignum_add_start(const uint32_t *number1,
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const uint8_t number1_size,
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const uint32_t *number2,
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const uint8_t number2_size,
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uint32_t *result_vector,
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struct process *process);
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/** \brief Gets the result of the addition operation on two big number.
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*
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* \param buffer Pointer to buffer where the result
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* needs to be stored.
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* \param buffer_size Address of the variable containing the length of
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* the buffer. After the operation the actual length of the
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* resultant is stored at this address.
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* \param result_vector Address of the result location which
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* was provided by the start function \sa PKABigNumAddStart().
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*
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* This function gets the result of the addition operation on two big numbers,
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* previously started using the function \sa PKABigNumAddStart().
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*
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* \retval PKA_STATUS_SUCCESS if the operation is successful.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy performing
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* the operation.
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* \retval PKA_STATUS_RESULT_0 if the result is all zeroes.
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* \retval PKA_STATUS_FAILURE if the operation is not successful.
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* \retval PKA_STATUS_BUF_UNDERFLOW if the length of the provided buffer is less
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* then the length of the result.
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*/
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uint8_t bignum_add_get_result(uint32_t *buffer,
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uint32_t *buffer_size,
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const uint32_t result_vector);
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/** \brief Starts the substract of two big number.
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*
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* \param number1 Pointer to the buffer containing the first big mumber.
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* \param number1_size Size of the first big number in 32-bit word.
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* \param number2 Pointer to the buffer containing the second big number.
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* \param number2_size Size of the second big number in 32-bit word.
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* \param result_vector Pointer to the result vector location
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* which will be set by this function.
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* \param process Process to be polled upon completion of the
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* operation, or \c NULL
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*
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* This function starts the substraction of the two big numbers.
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*
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* \retval PKA_STATUS_SUCCESS if successful in starting the operation.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* some other operation.
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*/
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uint8_t bignum_subtract_start(const uint32_t *number1,
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const uint8_t number1_size,
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const uint32_t *number2,
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const uint8_t number2_size,
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uint32_t *result_vector,
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struct process *process);
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/** \brief Gets the result of big number subtract.
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*
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* \param buffer Pointer to store the result of subtraction.
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* \param buffer_size Address of the variable containing the length of the
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* buffer. After the operation, the actual length of the resultant is
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* stored at this address.
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* \param result_vector Address of the result location which
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* was provided by the start function PKABigNumSubtractStart().
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*
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* This function gets the result of PKABigNumSubtractStart().
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*
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* \retval PKA_STATUS_SUCCESS if the operation is successful.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy performing
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* the operation.
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* \retval PKA_STATUS_RESULT_0 if the result is all zeroes.
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* \retval PKA_STATUS_FAILURE if the operation is not successful.
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*/
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uint8_t bignum_subtract_get_result(uint32_t *buffer,
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uint32_t *buffer_size,
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const uint32_t result_vector);
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/** \brief Starts the big number moduluar Exponentiation operation.
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*
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* \param number Pointer to the Exponent on which moduluar Exponentiation operation
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* needs to be carried out.
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* \param number_size Size of the the Exponent number number in 32-bit word.
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* \param modulus Pointer to the divisor.
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* \param modulus_size Size of the divisor modulus.
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* \param base Pointer to the Base.
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* \param base_size Size of the divisor base.
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* \param result_vector Pointer to the result vector location
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* which will be set by this function.
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* \param process Process to be polled upon completion of the
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* operation, or \c NULL
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*
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* This function starts the moduluar Exponentiation operation on the base num base
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* using the Exponent number and the Modulus num modulus. The PKA RAM location where the result
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* will be available is stored in \sa result_vector.
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* IMPORTANT = Modulus and Based should have buffers of the same length!
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*
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* \retval PKA_STATUS_SUCCESS if successful in starting the operation.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* some other operation.
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*/
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uint8_t bignum_exp_mod_start(const uint32_t *number,
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const uint8_t number_size,
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const uint32_t *modulus,
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const uint8_t modulus_size,
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const uint32_t *base,
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const uint8_t base_size,
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uint32_t *result_vector,
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struct process *process);
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/** \brief Gets the result of the big number modulus operation result.
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*
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* \param buffer Pointer to buffer where the result needs to
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* be stored.
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* \param buffer_size Size of the provided buffer in 32 bit size word.
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* \param result_vector Address of the result location which
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* was provided by the start function \sa PKABigNumExpModStart().
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*
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* This function gets the result of the big number modulus operation which was
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* previously started using the function \sa PKABigNumExpModStart().
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*
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* \retval PKA_STATUS_SUCCESS if successful.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* the operation.
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* \retval PKA_STATUS_RESULT_0 if the result is all zeroes.
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* \retval PKA_STATUS_BUF_UNDERFLOW if the \e size is less than the length
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* of the result.
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*
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* \note
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* - 0 < number_size <= Max_Len
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* - 1 < modulus_size <=Max_Len
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* - modulus must be odd and modulus > 232
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* - base < modulus
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*/
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uint8_t bignum_exp_mod_get_result(uint32_t *buffer,
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const uint8_t buffer_size,
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const uint32_t result_vector);
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/** \brief Starts the big number Divide.
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*
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* \param dividend Pointer to the buffer containing the big
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* number dividend.
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* \param dividend_size Size of the dividend in 32-bit word.
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* \param divisor Pointer to the buffer containing the big
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* number divisor.
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* \param divisor_size Size of the divisor in 32-bit word.
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* \param result_vector Pointer to the result vector location
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* which will be set by this function.
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* \param process Process to be polled upon completion of the
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* operation, or \c NULL
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*
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* This function starts the divide of the two big numbers.
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*
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* \retval PKA_STATUS_SUCCESS if successful in starting the operation.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy doing
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* some other operation.
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*/
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uint8_t bignum_divide_start(const uint32_t *dividend,
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const uint8_t dividend_size,
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const uint32_t *divisor,
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const uint8_t divisor_size,
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uint32_t *result_vector,
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struct process *process);
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/** \brief Gets the results of the big number Divide.
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*
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* \param buffer Pointer to buffer where the result needs to be stored.
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* \param buffer_size Address of the variable containing the length of the
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* buffer. After the operation, the actual length of the resultant is
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* stored at this address.
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* \param result_vector Address of the result location which
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* was provided by the start function \sa PKABigNumMultiplyStart().
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*
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* This function gets the result of the Divide of two big numbers
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* operation previously started using the function \sa
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* PKABigNumDivideStart().
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*
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* \retval PKA_STATUS_SUCCESS if the operation is successful.
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* \retval PKA_STATUS_OPERATION_INPRG if the PKA hw module is busy performing
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* the operation.
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* \retval PKA_STATUS_RESULT_0 if the result is all zeroes.
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* \retval PKA_STATUS_FAILURE if the operation is not successful.
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* \retval PKA_STATUS_BUF_UNDERFLOW if the length of the provided buffer is less
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* then the length of the result.
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*/
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uint8_t bignum_divide_get_result(uint32_t *buffer,
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uint32_t *buffer_size,
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const uint32_t result_vector);
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/** @} */
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#endif /* BIGNUM_DRIVER_H_ */
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/**
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* @}
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* @}
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*/
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