143 lines
5.6 KiB
C
143 lines
5.6 KiB
C
/*!
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\file main.c
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\brief PKCAU ECSDA sign
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\version 2021-10-30, V1.0.0, firmware for GD32W51x
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*/
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/*
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Copyright (c) 2021, GigaDevice Semiconductor Inc.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, 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 OF THE POSSIBILITY
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OF SUCH DAMAGE.
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*/
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#include "gd32w51x.h"
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#include <string.h>
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#include <stdio.h>
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#include "gd32w515p_eval.h"
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#define DATA_SIZE 14
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/* private key d */
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uint8_t d[DATA_SIZE] = {0x59,0xdb,0xa3,0x8d,0x4e,0xc6,0x0b,0x20,0x05,0xde,0xf5,0x20,0x49,0x59};
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/* integer d */
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uint8_t k[DATA_SIZE] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x05};
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/* hash value */
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uint8_t hash[DATA_SIZE] = {0x22,0xa3,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x4e,0xc6,0x0b,0x20};
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/* expected r */
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uint8_t expected_r[DATA_SIZE] = {0x31,0x8f,0xa3,0xef,0xf4,0x42,0x67,0x72,0x50,0xc0,0xd6,0x32,0xbc,0xf9};
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/* expected s */
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uint8_t expected_s[DATA_SIZE] = {0x21,0xef,0x85,0x13,0xc5,0xa2,0x8f,0x3d,0x1f,0xbd,0x27,0x7a,0x14,0xde};
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/* result r */
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uint8_t r[DATA_SIZE] = {0};
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/* result s */
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uint8_t s[DATA_SIZE] = {0};
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/* elliptic curve parameters */
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uint8_t secp112r2_p[] = {0xdb,0x7c,0x2a,0xbf,0x62,0xe3,0x5e,0x66,0x80,0x76,0xbe,0xad,0x20,0x8b};
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uint8_t secp112r2_a[] = {0x61,0x27,0xc2,0x4c,0x05,0xf3,0x8a,0x0a,0xaa,0xf6,0x5c,0x0e,0xf0,0x2c};
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uint8_t secp112r2_b[] = {0x51,0xde,0xf1,0x81,0x5d,0xb5,0xed,0x74,0xfc,0xc3,0x4c,0x85,0xd7,0x90};
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uint8_t secp112r2_gx[] = {0x4b,0xa3,0x0a,0xb5,0xe8,0x92,0xb4,0xe1,0x64,0x9d,0xd0,0x92,0x86,0x43};
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uint8_t secp112r2_gy[] = {0xad,0xcd,0x46,0xf5,0x88,0x2e,0x37,0x47,0xde,0xf3,0x6e,0x95,0x6e,0x97};
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uint8_t secp112r2_n[] = {0x36,0xdf,0x0a,0xaf,0xd8,0xb8,0xd7,0x59,0x7c,0xa1,0x05,0x20,0xd0,0x4b};
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/* ECC curve parameter structure */
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pkcau_ec_group_parameter_struct pkcau_curve_group;
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/* configure parameters of ECDSA sign */
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void pkcau_ecdsa_sign_config(void);
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/*!
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\brief main function
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\param[in] none
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\param[out] none
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\retval none
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*/
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int main(void)
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{
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/* initialize LED1 and LED2 */
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gd_eval_led_init(LED1);
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gd_eval_led_init(LED2);
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/* turn off LED1 and LED2 */
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gd_eval_led_off(LED1);
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gd_eval_led_off(LED2);
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/* enable PKCAU clock */
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rcu_periph_clock_enable(RCU_PKCAU);
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/* reset PKCAU */
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pkcau_deinit();
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/* enable PKCAU */
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pkcau_enable();
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/* wait for PKCAU busy flag to reset */
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while(RESET != pkcau_flag_get(PKCAU_FLAG_BUSY));
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/* configure ECDSA sign operation */
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pkcau_ecdsa_sign_config();
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/* wait for PKCAU operation completed */
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while(SET != pkcau_flag_get(PKCAU_FLAG_END));
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/* read results from RAM address */
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pkcau_memread(0x700, r, pkcau_curve_group.modulus_p_len);
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pkcau_memread(0x754, s, pkcau_curve_group.modulus_p_len);
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/* clear end flag */
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pkcau_flag_clear(PKCAU_FLAG_END);
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/* if success, LED1 is on */
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if(memcmp(r, expected_r, DATA_SIZE) || memcmp(s, expected_s, DATA_SIZE)){
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gd_eval_led_on(LED2);
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}else{
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gd_eval_led_on(LED1);
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}
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while(1){
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}
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}
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/*!
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\brief configure parameters of ECDSA sign
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\param[in] none
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\param[out] none
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\retval none
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*/
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void pkcau_ecdsa_sign_config(void)
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{
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pkcau_hash_parameter_struct pkcau_hash_parameter;
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/* initialize the ECC curve parameter and hash parameter structure */
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pkcau_ec_group_struct_para_init(&pkcau_curve_group);
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pkcau_hash_struct_para_init(&pkcau_hash_parameter);
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/* initialize the input ECC curve parameter */
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pkcau_curve_group.modulus_p = secp112r2_p;
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pkcau_curve_group.coff_a = secp112r2_a;
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pkcau_curve_group.a_sign = 0;
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pkcau_curve_group.base_point_x = secp112r2_gx;
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pkcau_curve_group.base_point_y = secp112r2_gy;
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pkcau_curve_group.order_n = secp112r2_n,
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pkcau_curve_group.modulus_p_len = sizeof(secp112r2_p);
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pkcau_curve_group.order_n_len = sizeof(secp112r2_n);
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/* initialize the input hash parameter */
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pkcau_hash_parameter.hash_z = hash;
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pkcau_hash_parameter.hash_z_len = DATA_SIZE;
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/* execute ECDSA sign operation */
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pkcau_ecdsa_sign_operation(d, k, &pkcau_hash_parameter, &pkcau_curve_group);
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}
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