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