173 lines
8.2 KiB
C
173 lines
8.2 KiB
C
/*!
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\file main.c
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\brief PKCAU ECSDA verification
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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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/* ECC verify r */
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uint8_t ecc_verify_r[] = {0x3b, 0x66, 0x19, 0xa7, 0x0c, 0x3c, 0x7a, 0x12, 0xdc, 0xd1, 0x1a, 0x8f, 0xfa, 0x3c, 0x8f, 0xa0,
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0x37, 0x49, 0xde, 0x4c, 0x14, 0x89, 0xaf, 0xe9, 0xae, 0x7b, 0x75, 0x9b, 0x1b, 0xe4, 0x0f, 0xd5};
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/* ECC verify s */
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uint8_t ecc_verify_s[] = {0x84, 0xaa, 0x9a, 0x05, 0x0a, 0x7f, 0xea, 0xa2, 0x8d, 0x4c, 0xc0, 0x52, 0x33, 0x43, 0x12, 0xde,
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0xb4, 0x26, 0xda, 0x4e, 0x7a, 0x5a, 0xc5, 0x9a, 0xa7, 0xc8, 0x85, 0x05, 0xc2, 0x91, 0xd3, 0x94};
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/* ECC verify point x */
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uint8_t ecc_verify_x[] = {0x8c, 0x71, 0xd2, 0xd9, 0x73, 0x30, 0x14, 0xf4, 0x8d, 0xf0, 0x47, 0xc6, 0xa5, 0xf8, 0x6a, 0x62,
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0x58, 0x69, 0xa8, 0x67, 0xa3, 0x0a, 0xa3, 0xa0, 0xd8, 0x9f, 0x6a, 0x58, 0x53, 0x8d, 0x08, 0x80};
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/* ECC verify point y */
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uint8_t ecc_verify_y[] = {0x3e, 0x92, 0x50, 0x99, 0x13, 0xab, 0xf2, 0xbd, 0x97, 0x69, 0xdb, 0x0d, 0xe8, 0x5e, 0xf6, 0x32,
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0x9f, 0xaa, 0xea, 0xea, 0x9a, 0x01, 0x8a, 0x9a, 0x6e, 0x84, 0xd2, 0x8d, 0x62, 0xde, 0xcc, 0x94};
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/* hash */
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uint8_t ecc_verify_hash[] = {0x46, 0xf8, 0x9d, 0x29, 0xc8, 0x8b, 0x5d, 0x44, 0xda, 0x2b, 0x54, 0x73, 0x58, 0x25, 0xf1, 0xf6,
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0x1d, 0x6d, 0x9b, 0x39, 0x40, 0x46, 0x64, 0xa0 ,0x3a, 0x3d, 0x08, 0x5c, 0x45, 0xac, 0xa6, 0xfe};
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/* curve modulus p */
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static const uint8_t brainpoolp256r1_p[] = {0xa9, 0xfb, 0x57, 0xdb, 0xa1, 0xee, 0xa9, 0xbc, 0x3e, 0x66, 0x0a, 0x90, 0x9d, 0x83,
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0x8d, 0x72, 0x6e, 0x3b, 0xf6, 0x23, 0xd5, 0x26, 0x20, 0x28, 0x20, 0x13, 0x48, 0x1d,
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0x1f, 0x6e, 0x53, 0x77};
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/* coefficient a */
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static const uint8_t brainpoolp256r1_a[] = {0x7d, 0x5a, 0x09, 0x75, 0xfc, 0x2c, 0x30, 0x57, 0xee, 0xf6, 0x75, 0x30, 0x41, 0x7a,
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0xff, 0xe7, 0xfb, 0x80, 0x55, 0xc1, 0x26, 0xdc, 0x5c, 0x6c, 0xe9, 0x4a, 0x4b, 0x44,
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0xf3, 0x30, 0xb5, 0xd9};
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/* base point x */
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static const uint8_t brainpoolp256r1_gx[] = {0x8b, 0xd2, 0xae, 0xb9, 0xcb, 0x7e, 0x57, 0xcb, 0x2c, 0x4b, 0x48, 0x2f, 0xfc, 0x81,
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0xb7, 0xaf, 0xb9, 0xde, 0x27, 0xe1, 0xe3, 0xbd, 0x23, 0xc2, 0x3a, 0x44, 0x53, 0xbd,
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0x9a, 0xce, 0x32, 0x62};
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/* base point y */
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static const uint8_t brainpoolp256r1_gy[] = {0x54, 0x7e, 0xf8, 0x35, 0xc3, 0xda, 0xc4, 0xfd, 0x97, 0xf8, 0x46, 0x1a, 0x14, 0x61,
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0x1d, 0xc9, 0xc2, 0x77, 0x45, 0x13, 0x2d, 0xed, 0x8e, 0x54, 0x5c, 0x1d, 0x54, 0xc7,
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0x2f, 0x4, 0x69, 0x97};
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/* order n */
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static const uint8_t brainpoolp256r1_n[] = {0xa9, 0xfb, 0x57, 0xdb, 0xa1, 0xee, 0xa9, 0xbc, 0x3e, 0x66, 0x0a, 0x90, 0x9d, 0x83,
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0x8d, 0x71, 0x8c, 0x39, 0x7a, 0xa3, 0xb5, 0x61, 0xa6, 0xf7, 0x90, 0x1e, 0x0e, 0x82,
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0x97, 0x48, 0x56, 0xa7};
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/* configure parameters of ECDSA verification */
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void pkcau_ecdsa_verify_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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uint8_t verify_res = 0;
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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 verification operation */
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pkcau_ecdsa_verify_config();
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/* wait for PKCAU operation completed */
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while(SET != pkcau_flag_get(PKCAU_INT_FLAG_END));
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/* read results from RAM address */
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pkcau_memread(0x5B0, &verify_res, 1);
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/* clear end flag */
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pkcau_flag_clear(PKCAU_INT_FLAG_END);
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/* if success, verification valid */
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if(!verify_res){
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gd_eval_led_on(LED1);
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}else{
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gd_eval_led_on(LED2);
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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 verification
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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_verify_config(void)
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{
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/* ECC curve parameter structure */
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pkcau_ec_group_parameter_struct pkcau_curve_group;
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/* hash parameter structure */
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pkcau_hash_parameter_struct pkcau_hash_parameter;
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/* signature parameter structure */
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pkcau_signature_parameter_struct pkcau_signature_parameter;
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/* point parameter structure */
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pkcau_point_parameter_struct pkcau_point_parameter;
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/* initialize the ECC curve parameter, hash parameter, point parameter and signature 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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pkcau_point_struct_para_init(&pkcau_point_parameter);
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pkcau_signature_struct_para_init(&pkcau_signature_parameter);
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/* initialize the input ECC signature parameters */
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pkcau_signature_parameter.sign_r = (uint8_t *)ecc_verify_r;
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pkcau_signature_parameter.sign_s = (uint8_t *)ecc_verify_s;
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/* initialize the input point parameters */
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pkcau_point_parameter.point_x = ecc_verify_x;
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pkcau_point_parameter.point_y = ecc_verify_y;
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/* initialize the input ECC curve parameters */
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pkcau_curve_group.modulus_p = (uint8_t *)brainpoolp256r1_p;
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pkcau_curve_group.coff_a = (uint8_t *)brainpoolp256r1_a;
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pkcau_curve_group.a_sign = 0;
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pkcau_curve_group.base_point_x = (uint8_t *)brainpoolp256r1_gx;
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pkcau_curve_group.base_point_y = (uint8_t *)brainpoolp256r1_gy;
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pkcau_curve_group.order_n = (uint8_t *)brainpoolp256r1_n,
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pkcau_curve_group.modulus_p_len = sizeof(brainpoolp256r1_p);
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pkcau_curve_group.order_n_len = sizeof(brainpoolp256r1_n);
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/* initialize the input hash parameters */
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pkcau_hash_parameter.hash_z = (uint8_t *)ecc_verify_hash;
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pkcau_hash_parameter.hash_z_len = sizeof(ecc_verify_hash);
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/* execute ECDSA verification operation */
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pkcau_ecdsa_verification_operation(&pkcau_point_parameter, &pkcau_hash_parameter, &pkcau_signature_parameter, &pkcau_curve_group);
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}
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