/*
 *  Elliptic curves over GF(p): generic functions
 *
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may
 *  not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

#include "common.h"

#if defined(MBEDTLS_ECP_C)

#include "mbedtls/ctr_drbg.h"
#include "mbedtls/ecp.h"
#include "mbedtls/entropy.h"
#include "mbedtls/error.h"
#include "mbedtls/platform.h"
#include "test_utils.h"

#if defined(MBEDTLS_ECP_ALT)

#if defined(MBEDTLS_SELF_TEST)

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Woverride-init"
#pragma GCC diagnostic ignored "-Wvla"
#pragma GCC diagnostic ignored "-Wstack-usage="

/****************************************************************
 * Test vectors
 ****************************************************************/

static const struct
{
    mbedtls_ecp_group_id ecp_group_id;
    const unsigned char * sk;
    const size_t sk_len;
    const unsigned char * pk;
    const size_t pk_len;
    const unsigned char * sum;
} ecp_test_cases[] = {
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_SECP521R1,
      .sk           = (const unsigned char[]){ 0x01, 0xeb, 0x60, 0x88, 0x03, 0x15, 0x7b, 0x13, 0xb1, 0xc3, 0x5b, 0xa8, 0x7b, 0x09,
                                     0xa4, 0x2e, 0xa6, 0x0f, 0xc7, 0x06, 0x66, 0x55, 0x22, 0x57, 0x0c, 0x08, 0x5a, 0x50,
                                     0xa4, 0x44, 0x5f, 0xea, 0x85, 0xed, 0x7f, 0xf3, 0xcf, 0x0c, 0x01, 0xd9, 0x4a, 0x87,
                                     0x9e, 0xcc, 0xa4, 0x60, 0x1b, 0x3d, 0x08, 0xfb, 0x37, 0x8d, 0x51, 0x07, 0x76, 0xcc,
                                     0xf1, 0x32, 0x0d, 0x8d, 0x12, 0x41, 0x2b, 0xa4, 0x5d, 0x8d },
      .sk_len       = 66,
      .pk     = (const unsigned char[]){ 0x04, 0x00, 0xef, 0xa5, 0x11, 0x33, 0x8b, 0x71, 0xba, 0x23, 0x9a, 0x37, 0xed, 0xad, 0xfa,
                                     0xf6, 0x94, 0x3f, 0xac, 0x7e, 0x23, 0x63, 0x4f, 0xcd, 0xad, 0x45, 0x70, 0xa9, 0x0b, 0x26,
                                     0xee, 0x96, 0x4f, 0x7e, 0x46, 0xce, 0xa7, 0xe5, 0x1f, 0xa3, 0xcc, 0xa5, 0xe1, 0x64, 0x57,
                                     0x92, 0x1a, 0x29, 0xa4, 0x1a, 0x0c, 0x82, 0xd4, 0x40, 0x59, 0x20, 0x20, 0x99, 0x87, 0xf3,
                                     0x46, 0x04, 0x9e, 0x25, 0x1a, 0x6d, 0x21, 0x01, 0x2a, 0xd3, 0x86, 0x7a, 0x8c, 0xcc, 0xfa,
                                     0x68, 0x99, 0x1f, 0xc5, 0x60, 0x35, 0x7b, 0x34, 0x8f, 0xf1, 0xfd, 0xa3, 0x5a, 0xac, 0x9b,
                                     0x09, 0xdf, 0xa5, 0x44, 0x45, 0xd8, 0xc9, 0x49, 0xa9, 0x05, 0xa5, 0x45, 0xba, 0xfc, 0x3b,
                                     0xb4, 0xe0, 0xda, 0x9d, 0x67, 0x3d, 0xb4, 0x05, 0xa7, 0x39, 0x57, 0xa2, 0x7d, 0x12, 0x6f,
                                     0x5c, 0x34, 0xab, 0xc1, 0x8d, 0xef, 0xe0, 0xec, 0x9a, 0xed, 0xad, 0x1b, 0x71 },
      .pk_len = 133,
      .sum    = (const unsigned char[]){ 0x04, 0x01, 0x68, 0x45, 0x34, 0x25, 0x5b, 0xad, 0x67, 0x54, 0x6b, 0x7c, 0x45, 0xe7, 0x60,
                                      0x7b, 0xe7, 0x2f, 0xe4, 0x94, 0xf6, 0x28, 0x06, 0x74, 0x0d, 0x85, 0xe4, 0xba, 0xcb, 0xec,
                                      0x51, 0xed, 0x37, 0xda, 0xbb, 0xf0, 0xb5, 0xa9, 0x07, 0xe4, 0xca, 0xed, 0x79, 0xb1, 0x2d,
                                      0xce, 0xf8, 0x4d, 0x7a, 0xee, 0x85, 0x41, 0x48, 0xac, 0x16, 0x51, 0x20, 0x88, 0x1e, 0x49,
                                      0x03, 0xc5, 0x1f, 0x99, 0x3f, 0x8a, 0x7d, 0x00, 0x10, 0xe1, 0xb7, 0xf9, 0x28, 0x76, 0xe4,
                                      0xf5, 0x36, 0xc0, 0x57, 0xd5, 0xf9, 0xba, 0xab, 0x49, 0x32, 0xf9, 0x84, 0xa9, 0x53, 0x14,
                                      0x73, 0xfe, 0xfe, 0xf3, 0xe9, 0xa2, 0xf4, 0x0d, 0xa6, 0x3c, 0xd7, 0x3a, 0x3b, 0xfc, 0x30,
                                      0xaa, 0xff, 0x2c, 0x86, 0x7a, 0xa7, 0xf0, 0x0b, 0x83, 0xb7, 0x3a, 0x98, 0x52, 0xac, 0x66,
                                      0x0c, 0x4c, 0x4b, 0x49, 0x9f, 0xea, 0xfa, 0x2b, 0xa6, 0x32, 0xe4, 0x87, 0xbf } },
#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_BP512R1,
      .sk =
          (const unsigned char[]){ 0x64, 0x35, 0x05, 0x6c, 0x1d, 0x98, 0xc8, 0xe1, 0x30, 0x5e, 0xf4, 0x11, 0x2c, 0x05, 0x68, 0x98,
                                   0x31, 0xf4, 0xba, 0x16, 0xf4, 0x67, 0x9a, 0x78, 0x6a, 0x8f, 0x7c, 0x18, 0x36, 0xca, 0x3f, 0xd4,
                                   0xc1, 0x4a, 0x9b, 0xfd, 0x32, 0x70, 0x68, 0x76, 0xb1, 0xc8, 0x1d, 0x9a, 0xae, 0x8a, 0x24, 0x01,
                                   0xad, 0xf7, 0x45, 0x36, 0x18, 0x23, 0x9e, 0x3e, 0x1e, 0xf2, 0xfa, 0x03, 0x35, 0xd1, 0xad, 0x92 },
      .sk_len = 64,
      .pk     = (const unsigned char[]){ 0x04, 0x47, 0x6a, 0x9d, 0x4e, 0xb4, 0xb9, 0x1c, 0x82, 0x11, 0xa4, 0xff, 0x40, 0x60, 0xf1,
                                     0x34, 0xd8, 0x29, 0x26, 0xa8, 0xd8, 0xcc, 0x08, 0x38, 0x5d, 0xe4, 0x93, 0xc0, 0xfc, 0xb2,
                                     0xe5, 0x60, 0x39, 0x1f, 0x7c, 0x37, 0x60, 0x77, 0xc6, 0x1d, 0x4b, 0x4d, 0x3c, 0x61, 0xcf,
                                     0x6e, 0x38, 0x44, 0x37, 0x7c, 0x7f, 0x42, 0x7b, 0xbf, 0x8e, 0x45, 0x79, 0x53, 0x8a, 0x94,
                                     0x4d, 0xef, 0x08, 0xb0, 0x99, 0x92, 0xce, 0xa2, 0xa7, 0x87, 0xda, 0x2c, 0x92, 0x2a, 0x59,
                                     0x58, 0xc4, 0xa2, 0x05, 0x77, 0x8a, 0x31, 0x68, 0x36, 0xf4, 0x4d, 0x61, 0xb3, 0x27, 0x97,
                                     0xc5, 0x98, 0x24, 0xed, 0x6c, 0x28, 0x8c, 0xee, 0xd8, 0x2c, 0xc3, 0x90, 0xf1, 0x36, 0xc6,
                                     0x62, 0xca, 0x3c, 0xb9, 0xa4, 0x4f, 0x27, 0x92, 0x7f, 0x8b, 0x43, 0x36, 0x43, 0x04, 0x82,
                                     0xb7, 0x4b, 0x52, 0x9a, 0x02, 0xc9, 0x2a, 0x08, 0x36 },
      .pk_len = 129,
      .sum    = (const unsigned char[]){ 0x04, 0x1d, 0x10, 0xaa, 0xb7, 0x2b, 0x6b, 0x1c, 0x8e, 0xde, 0x85, 0x9b, 0xf3, 0x8c, 0xaf,
                                      0xbb, 0x86, 0xdd, 0xc9, 0x0b, 0xc0, 0xdc, 0x28, 0x1c, 0xf4, 0x1e, 0x81, 0x9d, 0x8a, 0x93,
                                      0x43, 0xcf, 0xf9, 0xfe, 0x30, 0xb2, 0x04, 0x50, 0x08, 0x96, 0x1c, 0x61, 0xc7, 0x5c, 0xea,
                                      0x28, 0xef, 0x9e, 0x9a, 0x34, 0xaf, 0x77, 0x2b, 0x89, 0x63, 0x6d, 0x81, 0x72, 0x6a, 0x72,
                                      0x3d, 0xca, 0x10, 0x1f, 0xfc, 0x9d, 0xe5, 0x89, 0xd7, 0x82, 0x46, 0xe2, 0x59, 0x88, 0xa8,
                                      0x4d, 0x2c, 0x91, 0x28, 0x5d, 0x40, 0x8d, 0xc0, 0xe9, 0x4f, 0xb1, 0x70, 0xcf, 0xf3, 0x05,
                                      0xb6, 0xb8, 0xf9, 0xd7, 0x24, 0x7e, 0xf5, 0x9d, 0x65, 0x4f, 0xb6, 0xb8, 0x7f, 0x44, 0xae,
                                      0x38, 0x21, 0xbc, 0x32, 0xef, 0x6f, 0xf7, 0x8a, 0xd5, 0xa5, 0xe7, 0xee, 0xa3, 0x76, 0xc5,
                                      0xee, 0x1f, 0x4f, 0x7c, 0xfc, 0x8e, 0x39, 0x7b, 0xe7 } },
#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_SECP384R1,
      .sk =
          (const unsigned char[]){ 0x35, 0x05, 0x64, 0x07, 0xb0, 0xfd, 0x3e, 0x09, 0xe3, 0x07, 0x41, 0xdc, 0x8a, 0xd3, 0xef, 0xc7,
                                   0xad, 0x29, 0xc5, 0x97, 0x8a, 0xbb, 0x15, 0x10, 0xac, 0xd2, 0x47, 0xac, 0xdc, 0xa7, 0x45, 0xf0,
                                   0x27, 0x17, 0x8f, 0x4a, 0x7a, 0xd1, 0xcc, 0xd2, 0x17, 0xc2, 0x22, 0x6a, 0x99, 0xf1, 0x8b, 0xc0 },
      .sk_len = 48,
      .pk     = (const unsigned char[]){ 0x04, 0xc8, 0x2d, 0xaa, 0x27, 0xd0, 0x91, 0x1f, 0x3d, 0x41, 0xf5, 0xe7, 0xa6, 0x46,
                                     0xae, 0xf8, 0xca, 0x74, 0x31, 0x63, 0xe2, 0x1f, 0x38, 0x25, 0x05, 0x5f, 0xa0, 0xfa,
                                     0x49, 0x51, 0x71, 0xea, 0x4f, 0xb6, 0x1a, 0xc3, 0xfd, 0xf3, 0x8e, 0x95, 0xe6, 0xfe,
                                     0x7b, 0xff, 0x65, 0x26, 0xd4, 0xf0, 0x8e, 0x06, 0x70, 0x03, 0x10, 0xba, 0xd8, 0x7c,
                                     0x54, 0x55, 0x23, 0x18, 0x57, 0x27, 0x6d, 0xe2, 0xc4, 0x4e, 0x30, 0xb7, 0x36, 0xdc,
                                     0x15, 0xb6, 0xdf, 0xaf, 0xb0, 0xe4, 0x78, 0xbb, 0xad, 0x1d, 0xf0, 0x50, 0x00, 0xbd,
                                     0x90, 0xfa, 0x4c, 0xb3, 0x3d, 0xbc, 0xf9, 0x54, 0xf6, 0x61, 0xaf, 0xcb, 0xfc },
      .pk_len = 97,
      .sum    = (const unsigned char[]){ 0x04, 0xf5, 0xf1, 0x09, 0xb7, 0x3d, 0x7e, 0x05, 0x13, 0xc7, 0x6a, 0x99, 0x17, 0xcf,
                                      0x3b, 0x5a, 0x5a, 0x04, 0x1a, 0x6e, 0xa4, 0x23, 0x9d, 0x47, 0xab, 0x04, 0x5e, 0xe4,
                                      0x83, 0xa3, 0x0b, 0xac, 0x16, 0x2d, 0x6e, 0x5d, 0x87, 0x23, 0xcd, 0xbc, 0x3b, 0xdb,
                                      0xb7, 0x21, 0xc1, 0x18, 0x19, 0x8d, 0x3b, 0x80, 0x6f, 0x93, 0xa6, 0xbd, 0xa0, 0x72,
                                      0x7d, 0x58, 0x90, 0xa4, 0x87, 0x8a, 0xe4, 0x6d, 0x1c, 0xf5, 0xeb, 0x3b, 0x8b, 0x38,
                                      0x97, 0x42, 0x33, 0x3c, 0x9e, 0x43, 0x4d, 0x63, 0x7a, 0x21, 0x9e, 0x02, 0x7a, 0x0d,
                                      0x19, 0x26, 0x45, 0xa8, 0x74, 0x29, 0x7c, 0x24, 0x8e, 0x71, 0x95, 0xcf, 0x9d } },
#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_BP384R1,
      .sk =
          (const unsigned char[]){ 0x50, 0xff, 0xbb, 0xab, 0x9c, 0x62, 0x8c, 0x3e, 0xc4, 0x1d, 0xb9, 0x00, 0x5e, 0x1a, 0xf0, 0x8d,
                                   0x64, 0x58, 0x44, 0x97, 0x2c, 0xf5, 0x2f, 0xcf, 0x7d, 0xb8, 0x36, 0xcc, 0x3a, 0x33, 0x46, 0x85,
                                   0x4c, 0xf5, 0x6f, 0x89, 0xfc, 0xd9, 0xc4, 0x98, 0xc5, 0x12, 0x8a, 0x59, 0xcb, 0xff, 0x91, 0xc7 },
      .sk_len = 48,
      .pk     = (const unsigned char[]){ 0x04, 0x3a, 0xef, 0x56, 0x8a, 0x8b, 0x51, 0x2b, 0xb7, 0x49, 0x3c, 0x92, 0xc4, 0x6a,
                                     0x12, 0xd5, 0x84, 0x2f, 0x53, 0x89, 0x8c, 0x38, 0x29, 0x3f, 0xe0, 0xbc, 0x94, 0x47,
                                     0x5e, 0xd1, 0x74, 0x04, 0x50, 0x31, 0x6a, 0x80, 0xc3, 0xe3, 0x69, 0x02, 0xac, 0xe7,
                                     0xcd, 0x21, 0x65, 0x6c, 0x1d, 0x8a, 0x1a, 0x74, 0xf8, 0x79, 0x88, 0x75, 0x42, 0xe1,
                                     0x7c, 0xb1, 0x7d, 0xa7, 0xf8, 0xda, 0x57, 0xdc, 0x00, 0x1f, 0xd6, 0x07, 0xa6, 0xc6,
                                     0x85, 0xc5, 0x8d, 0xc3, 0xaa, 0x4c, 0xd1, 0x4f, 0xf9, 0x65, 0xf0, 0x56, 0xce, 0x0f,
                                     0x48, 0x54, 0x9a, 0xf4, 0xe2, 0x15, 0x08, 0x05, 0x9e, 0xbc, 0xb8, 0x17, 0x03 },
      .pk_len = 97,
      .sum    = (const unsigned char[]){ 0x04, 0x7c, 0x9b, 0xab, 0x7c, 0x51, 0xc0, 0x36, 0x5c, 0xdd, 0x22, 0xf7, 0x10, 0xb7,
                                      0x39, 0x14, 0x50, 0xf9, 0xe1, 0x05, 0x09, 0x74, 0x5b, 0x1a, 0x5c, 0x21, 0xcc, 0x10,
                                      0xca, 0x9a, 0xf4, 0x3a, 0x72, 0x57, 0x43, 0xfb, 0x52, 0x9e, 0x6d, 0x20, 0x77, 0x4a,
                                      0xcd, 0x6a, 0xd8, 0xa1, 0x39, 0x94, 0x7e, 0x7e, 0x08, 0x49, 0x91, 0x98, 0x86, 0x76,
                                      0xb7, 0xca, 0xb8, 0xbe, 0x15, 0xd6, 0x50, 0x64, 0xb2, 0x0c, 0x07, 0x6c, 0x07, 0x0f,
                                      0x48, 0xd4, 0xd9, 0x95, 0x2f, 0xf0, 0xb0, 0x21, 0xd0, 0x39, 0xe0, 0x43, 0xbd, 0x40,
                                      0x0a, 0xa7, 0x8d, 0xaf, 0x4b, 0xc3, 0xff, 0xf6, 0x76, 0xd4, 0x19, 0x2f, 0x7f } },
#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_SECP256R1,
      .sk =
          (const unsigned char[]){ 0x3d, 0x1d, 0x83, 0xfa, 0xf6, 0xbb, 0x86, 0xe9, 0xf8, 0x9e, 0x45, 0x6a, 0xa8, 0x29, 0x6f, 0x52,
                                   0x04, 0x79, 0xff, 0xc4, 0x94, 0xd8, 0xe0, 0xe7, 0xcd, 0xe8, 0xe0, 0x83, 0xab, 0xcf, 0x63, 0x0b },
      .sk_len = 32,
      .pk     = (const unsigned char[]){ 0x04, 0xd3, 0x48, 0xb6, 0x80, 0x35, 0x49, 0x67, 0x97, 0xc9, 0x28, 0xc4, 0xfe,
                                     0xa6, 0x13, 0xe1, 0xb3, 0xee, 0x51, 0x95, 0xfd, 0x20, 0x7f, 0xe7, 0xdc, 0x7d,
                                     0xc0, 0x6b, 0x4e, 0xa6, 0x5d, 0x6f, 0x42, 0x61, 0xc4, 0xeb, 0x3b, 0x95, 0x5e,
                                     0xea, 0x57, 0xe1, 0x21, 0xcc, 0x11, 0xd6, 0x79, 0x7c, 0x5f, 0xf7, 0x52, 0xea,
                                     0x17, 0x07, 0x81, 0xb5, 0x53, 0x7e, 0xbb, 0x4f, 0xba, 0xdd, 0xbf, 0xd4, 0x08 },
      .pk_len = 65,
      .sum    = (const unsigned char[]){ 0x04, 0xd4, 0x87, 0x27, 0x27, 0xbf, 0xaf, 0x6a, 0xea, 0xb7, 0x84, 0xa8, 0x1a,
                                      0xd8, 0x29, 0x9e, 0x2b, 0xa7, 0x87, 0x4f, 0xa9, 0xb5, 0x7a, 0x66, 0x5f, 0xbe,
                                      0x5c, 0xef, 0x83, 0x49, 0x89, 0xd1, 0x34, 0x46, 0x2a, 0x54, 0xe6, 0x92, 0x56,
                                      0xde, 0xcd, 0x44, 0xe9, 0x99, 0x2a, 0x80, 0xad, 0x78, 0xe6, 0x29, 0xcc, 0x77,
                                      0xdd, 0x1c, 0x93, 0x03, 0xe2, 0xe9, 0x99, 0x58, 0x86, 0x8f, 0xea, 0xac, 0x3d } },
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_SECP256K1,
      .sk =
          (const unsigned char[]){ 0x38, 0x4c, 0x12, 0x83, 0xf8, 0x4d, 0xba, 0x47, 0xcf, 0x6b, 0x71, 0xff, 0xc3, 0x7c, 0x8d, 0x08,
                                   0x65, 0xee, 0xed, 0x5b, 0x2b, 0x48, 0xf3, 0x79, 0xdf, 0x52, 0x53, 0xff, 0x10, 0xf9, 0x22, 0x7c },
      .sk_len = 32,
      .pk     = (const unsigned char[]){ 0x04, 0x73, 0x06, 0x4b, 0x4b, 0x3e, 0x38, 0x2f, 0xa0, 0x89, 0x1f, 0x61, 0xfc,
                                     0x85, 0xf9, 0x51, 0xbe, 0xe4, 0x3d, 0x2c, 0xe9, 0x3e, 0xb0, 0x79, 0x77, 0xaf,
                                     0x9f, 0xd7, 0xd9, 0x71, 0x68, 0x31, 0x22, 0xc4, 0x9a, 0x25, 0x0c, 0x81, 0x64,
                                     0x0a, 0xc7, 0xd5, 0x40, 0xb3, 0xe8, 0x9f, 0xb5, 0xb3, 0xc4, 0xc9, 0x6a, 0x13,
                                     0x3e, 0xf8, 0x3e, 0x8d, 0xa2, 0xfe, 0x1d, 0xd0, 0x47, 0x64, 0x88, 0x8e, 0x7a },
      .pk_len = 65,
      .sum    = (const unsigned char[]){ 0x04, 0x50, 0x81, 0x70, 0xde, 0x4b, 0x36, 0x41, 0xe8, 0x1a, 0x41, 0xf0, 0x5b,
                                      0x88, 0x1e, 0x4e, 0xed, 0xed, 0x46, 0x0c, 0xf3, 0xd5, 0xfb, 0xe6, 0x8a, 0x13,
                                      0xa1, 0xf5, 0x57, 0x69, 0x0a, 0x3d, 0x33, 0x0f, 0x6f, 0xb5, 0x99, 0x80, 0x58,
                                      0x12, 0xc2, 0x12, 0x62, 0xfc, 0xd2, 0x5b, 0x2e, 0xa2, 0x27, 0xe7, 0x99, 0xab,
                                      0x91, 0x51, 0x41, 0x0f, 0x06, 0x1e, 0x3d, 0xfd, 0x06, 0xa1, 0x8a, 0xc7, 0xf2 } },
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_BP256R1,
      .sk =
          (const unsigned char[]){ 0xa6, 0xb5, 0x48, 0x3f, 0x74, 0xd9, 0x94, 0x9f, 0x09, 0xcd, 0x56, 0x29, 0x19, 0xde, 0xfc, 0x41,
                                   0x3a, 0x83, 0xf1, 0x2a, 0xda, 0x4f, 0x5f, 0xf4, 0x8e, 0xb5, 0x20, 0x59, 0x11, 0x8e, 0xe6, 0x03 },
      .sk_len = 32,
      .pk     = (const unsigned char[]){ 0x04, 0x95, 0x44, 0xdb, 0xb4, 0xdc, 0x6f, 0x39, 0x23, 0xb1, 0x3b, 0x13, 0xb6,
                                     0xcc, 0xcc, 0xde, 0xfb, 0xc0, 0x10, 0xfa, 0x8a, 0x06, 0x30, 0xb9, 0x10, 0x22,
                                     0xc8, 0x84, 0x7c, 0xf3, 0xba, 0xbd, 0x3a, 0x67, 0xb4, 0x48, 0x68, 0x59, 0x54,
                                     0x68, 0xab, 0x2d, 0x2d, 0x6f, 0xa7, 0xbf, 0x61, 0x92, 0x2b, 0x07, 0xc0, 0x8c,
                                     0xb9, 0x3f, 0x88, 0x02, 0x09, 0xfe, 0xfa, 0x72, 0x87, 0x19, 0xaa, 0x19, 0xcc },
      .pk_len = 65,
      .sum    = (const unsigned char[]){ 0x04, 0x7d, 0x88, 0xb4, 0x73, 0xa0, 0x7d, 0x66, 0x5c, 0xc2, 0x9b, 0x7a, 0xbc,
                                      0x0c, 0xab, 0x04, 0xc9, 0x79, 0x3e, 0x9a, 0x4e, 0xd3, 0x27, 0x75, 0x1e, 0x4d,
                                      0x07, 0x7b, 0x5c, 0xbc, 0xce, 0x15, 0xdb, 0x01, 0xb3, 0xd0, 0xcd, 0x27, 0x1b,
                                      0xe1, 0x57, 0x58, 0x07, 0x88, 0xfd, 0xfd, 0x89, 0xd7, 0x71, 0xcf, 0xbb, 0xa2,
                                      0xcb, 0x03, 0xd4, 0x34, 0xb1, 0x9e, 0x34, 0x21, 0x31, 0x07, 0x51, 0x6a, 0x0e } },
#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_SECP224R1,
      .sk           = (const unsigned char[]){ 0x34, 0xac, 0xe1, 0x1f, 0xfa, 0x5e, 0x25, 0xac, 0xee, 0x68, 0xa8, 0xc1, 0x47, 0x64,
                                     0xa2, 0xa4, 0x69, 0xd5, 0x2c, 0x99, 0x3c, 0x77, 0xf9, 0xc2, 0x38, 0x42, 0x79, 0x93 },
      .sk_len       = 28,
      .pk     = (const unsigned char[]){ 0x04, 0x37, 0x84, 0x05, 0x01, 0xf4, 0x98, 0x12, 0x37, 0x5e, 0xf7, 0x13, 0xcb, 0x29, 0x6a,
                                     0x43, 0xf4, 0x47, 0xd2, 0xe4, 0x14, 0x3c, 0x10, 0xef, 0x9c, 0x00, 0x59, 0xb6, 0x01, 0x69,
                                     0x71, 0x76, 0x46, 0x9e, 0x85, 0xa7, 0xc6, 0x39, 0x23, 0x59, 0xf7, 0xfd, 0x41, 0xfe, 0xa8,
                                     0x3e, 0x6b, 0x97, 0x68, 0xe4, 0x5b, 0x1d, 0xea, 0xcd, 0x85, 0x15, 0xa3 },
      .pk_len = 57,
      .sum    = (const unsigned char[]){ 0x04, 0x7d, 0x26, 0x1b, 0xf6, 0xb4, 0xa9, 0x45, 0xf8, 0x0f, 0x93, 0xef, 0x05, 0x43, 0x98,
                                      0x1b, 0x48, 0xf5, 0xea, 0x5c, 0x07, 0x7d, 0xe9, 0x42, 0xc6, 0x9a, 0x11, 0x27, 0x62, 0x00,
                                      0xef, 0x24, 0x13, 0x53, 0xe0, 0x6b, 0x9b, 0xf5, 0xdd, 0x76, 0xfe, 0xa9, 0xd0, 0x0e, 0xdc,
                                      0x1f, 0x3d, 0xec, 0x15, 0x36, 0x5e, 0x53, 0xe1, 0x30, 0xb7, 0x25, 0x26 } },
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_SECP224K1,
      .sk           = (const unsigned char[]){ 0xba, 0xc8, 0xa0, 0x42, 0xe1, 0x0c, 0xa2, 0xf3, 0xf0, 0x76, 0x04, 0x74, 0xb7, 0x1a,
                                     0x8f, 0x42, 0xc3, 0x25, 0xeb, 0x57, 0xcd, 0x8d, 0xb0, 0xf9, 0x73, 0x1a, 0x18, 0x26 },
      .sk_len       = 28,
      .pk     = (const unsigned char[]){ 0x04, 0x7f, 0x07, 0xbe, 0xb0, 0x26, 0xd8, 0x6c, 0xe4, 0x09, 0xe8, 0xa6, 0x21, 0x70, 0x37,
                                     0x52, 0xd6, 0x14, 0x58, 0x4c, 0x99, 0xc8, 0x62, 0x28, 0x6c, 0xeb, 0x3f, 0xf8, 0x30, 0xbb,
                                     0x82, 0x4c, 0x8a, 0x88, 0xb4, 0x7f, 0x14, 0x17, 0xd0, 0xf5, 0xba, 0xd0, 0x0f, 0xf6, 0xb8,
                                     0x8c, 0xbb, 0x11, 0x3e, 0x7d, 0x73, 0xc5, 0xf4, 0x4d, 0x22, 0x78, 0x0f },
      .pk_len = 57,
      .sum    = (const unsigned char[]){ 0x04, 0xb2, 0xbe, 0x4b, 0xc0, 0x62, 0xf2, 0xf6, 0x0e, 0x7f, 0x48, 0x25, 0x50, 0x81, 0xed,
                                      0xac, 0x14, 0xaa, 0x42, 0x5f, 0x0d, 0x12, 0x52, 0x6d, 0xe0, 0xbc, 0x08, 0x0b, 0x9f, 0xc9,
                                      0x82, 0x19, 0x07, 0xbf, 0x19, 0x1a, 0x1c, 0xdc, 0x75, 0xbc, 0xe4, 0x5d, 0xcb, 0x4b, 0x9f,
                                      0x2a, 0xbf, 0x1c, 0xd2, 0xa3, 0x63, 0x33, 0x3f, 0x32, 0xd0, 0xcf, 0x33 } },
#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_SECP192R1,
      .sk           = (const unsigned char[]){ 0x52, 0x9f, 0x95, 0xf5, 0x4e, 0x73, 0xb6, 0x75, 0x14, 0xcc, 0x92, 0x0c,
                                     0xcc, 0x07, 0x84, 0x06, 0x01, 0xf3, 0xde, 0x42, 0xad, 0x79, 0x6c, 0x82 },
      .sk_len       = 24,
      .pk           = (const unsigned char[]){ 0x04, 0x61, 0xe9, 0x8d, 0x7e, 0x8e, 0x40, 0x31, 0x20, 0x27, 0xfb, 0x3f, 0x45,
                                     0x4b, 0x65, 0x0e, 0xfc, 0x41, 0x56, 0x49, 0x20, 0xe6, 0x5c, 0xd4, 0xaa, 0x40,
                                     0xfe, 0xbc, 0x03, 0xc1, 0xfc, 0x0d, 0x5e, 0x4f, 0xe9, 0x55, 0x08, 0x8c, 0x90,
                                     0x04, 0xeb, 0xdc, 0x63, 0x89, 0xb2, 0x58, 0x28, 0xfa, 0x28 },
      .pk_len       = 49,
      .sum          = (const unsigned char[]){ 0x04, 0x0a, 0xe7, 0xc5, 0x9e, 0x3b, 0x36, 0xb9, 0x38, 0xdd, 0x75, 0x41, 0x7c,
                                      0x2d, 0x90, 0xaf, 0x2d, 0x62, 0xf5, 0x5a, 0x86, 0xfe, 0xa0, 0x5f, 0x22, 0xdb,
                                      0xf3, 0xba, 0x49, 0x47, 0x7d, 0x74, 0x59, 0x02, 0xb3, 0x6c, 0xf2, 0x1e, 0x18,
                                      0x5b, 0xea, 0x1a, 0xcb, 0xb0, 0x1d, 0x4b, 0x68, 0xec, 0xab

      } },
#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_SECP192K1,
      .sk           = (const unsigned char[]){ 0xf2, 0x58, 0xcf, 0xba, 0xb6, 0xb0, 0xb4, 0x03, 0x9e, 0xb2, 0x74, 0xfc,
                                     0x70, 0xfc, 0x99, 0x0c, 0xcc, 0xed, 0xf4, 0x5f, 0x32, 0x72, 0x22, 0x94 },
      .sk_len       = 24,
      .pk           = (const unsigned char[]){ 0x04, 0xac, 0xe4, 0x74, 0xd8, 0x67, 0x26, 0x60, 0xff, 0x35, 0x10, 0x74, 0xa1,
                                     0x4e, 0x46, 0xed, 0x2b, 0x94, 0x10, 0x13, 0x01, 0x51, 0x8f, 0xe7, 0xf1, 0xe8,
                                     0x3d, 0x4a, 0x32, 0x87, 0xe7, 0x4f, 0x39, 0x87, 0xa5, 0x86, 0xef, 0xd1, 0xc8,
                                     0x12, 0xc8, 0x9b, 0xcd, 0xc6, 0x3d, 0x8d, 0x7a, 0x1b, 0x70 },
      .pk_len       = 49,
      .sum          = (const unsigned char[]){ 0x04, 0x7c, 0xe5, 0xe9, 0x57, 0x0c, 0x36, 0x88, 0x8f, 0xaf, 0xe5, 0x4a, 0xac,
                                      0xf2, 0x2d, 0xf9, 0xba, 0xf9, 0xb5, 0xa2, 0x64, 0xa2, 0x0b, 0x9f, 0x69, 0xfb,
                                      0xc7, 0xe1, 0x88, 0xd1, 0xf5, 0x56, 0x6c, 0x6b, 0xc7, 0x64, 0x94, 0xd4, 0x86,
                                      0xf3, 0x6a, 0xe3, 0x5d, 0x33, 0xda, 0x48, 0x62, 0x18, 0x33 } },
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
#ifdef MBEDTLS_ECP_DP_CURVE25519_ENABLED
    { .ecp_group_id = MBEDTLS_ECP_DP_CURVE25519,
      .sk =
          (const unsigned char[]){ 0x60, 0xc6, 0x2b, 0x85, 0x21, 0x87, 0xf7, 0xd5, 0xdb, 0x8a, 0xa0, 0x3c, 0xe1, 0x73, 0x66, 0xe6,
                                   0xcf, 0x57, 0xcd, 0xa2, 0x5a, 0xd0, 0xb1, 0xb8, 0xdd, 0xf1, 0x2f, 0x6e, 0x5f, 0xcd, 0x50, 0x30 },
      .sk_len = 32,
      .pk =
          (const unsigned char[]){ 0x36, 0xce, 0xe3, 0x98, 0x09, 0xe1, 0x72, 0xca, 0xcd, 0x26, 0x79, 0xa9, 0xbf, 0xc4, 0xda, 0xd9,
                                   0x65, 0x4a, 0x53, 0x23, 0xf4, 0x02, 0x75, 0x7c, 0xe2, 0xc6, 0x4a, 0x7c, 0x1c, 0xd2, 0xf6, 0x4d },
      .pk_len = 32,
      .sum    = NULL },
#endif
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
    { .ecp_group_id = MBEDTLS_ECP_DP_CURVE448,
      .sk           = (const unsigned char[]){ 0xf5, 0x73, 0x0e, 0x50, 0xb2, 0xd3, 0x3b, 0x01, 0x28, 0x29, 0xa0, 0xa1, 0x43, 0x92,
                                     0x2f, 0x05, 0x40, 0xc3, 0x5f, 0xcf, 0xc1, 0x53, 0x49, 0xc2, 0x0c, 0xf4, 0x49, 0x99,
                                     0xdb, 0xb9, 0x64, 0x10, 0x25, 0x18, 0x82, 0x24, 0x2c, 0xdf, 0x25, 0xb6, 0xac, 0xb1,
                                     0xe6, 0x11, 0x26, 0xa9, 0x96, 0x16, 0x16, 0x6c, 0x7b, 0xdd, 0x7c, 0x55, 0x5f, 0xf0 },
      .sk_len       = 56,
      .pk           = (const unsigned char[]){ 0x4f, 0xf4, 0xd0, 0x42, 0x1a, 0xa6, 0xfc, 0x2d, 0xba, 0x7b, 0x45, 0x9e, 0xed, 0xd0,
                                     0xf1, 0x8c, 0xec, 0xeb, 0xae, 0x29, 0x27, 0x9f, 0xc7, 0xe8, 0x8a, 0xc7, 0xeb, 0x3c,
                                     0x18, 0xb8, 0x7f, 0x66, 0x2f, 0x8b, 0x0d, 0x68, 0xe8, 0x2e, 0x60, 0x91, 0x27, 0xa2,
                                     0x8c, 0x91, 0x2c, 0xf4, 0xa1, 0x58, 0x74, 0xc9, 0x40, 0xfe, 0x50, 0x06, 0x1b, 0xe7 },
      .pk_len       = 56,
      .sum          = NULL },
#endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */
};

/****************************************************************
 * Dummy variable to skip mbedtls_ecp_self_test sw functionality
 ****************************************************************/
const int __ecp_alt_b91_skip_internal_self_tests = 1;

/****************************************************************
 * Public functions declaration
 ****************************************************************/

int ecp_alt_b91_backend_test(int verbose)
{
    int result = 0;
    if (verbose)
        mbedtls_printf("test started\n");

    mbedtls_ctr_drbg_context ctr_drbg;
    mbedtls_entropy_context entropy;

    mbedtls_ctr_drbg_init(&ctr_drbg);
    mbedtls_entropy_init(&entropy);

    if ((result = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy, NULL, 0)) == 0)
    {

        for (size_t i = 0; result == 0 && i < sizeof(ecp_test_cases) / sizeof(ecp_test_cases[0]); i++)
        {

            const mbedtls_ecp_curve_info * ecp_curve_info = mbedtls_ecp_curve_info_from_grp_id(ecp_test_cases[i].ecp_group_id);
            if (verbose)
                mbedtls_printf("\tcurve: %s\n", ecp_curve_info->name);

            mbedtls_ecp_group ecp_group;
            mbedtls_mpi sk;
            mbedtls_ecp_point pk;
            mbedtls_ecp_point pk_ref;
            mbedtls_ecp_point sum;
            mbedtls_ecp_point sum_ref;

            mbedtls_ecp_group_init(&ecp_group);
            mbedtls_mpi_init(&sk);
            mbedtls_ecp_point_init(&pk);
            mbedtls_ecp_point_init(&pk_ref);
            mbedtls_ecp_point_init(&sum);
            mbedtls_ecp_point_init(&sum_ref);

            do
            {
                if ((result = mbedtls_ecp_group_load(&ecp_group, ecp_test_cases[i].ecp_group_id)) != 0)
                {
                    if (verbose)
                        mbedtls_printf("mbedtls_ecp_group_load failed\n");
                    break;
                }

                if ((result = mbedtls_mpi_read_binary(&sk, ecp_test_cases[i].sk, ecp_test_cases[i].sk_len)) != 0)
                {
                    if (verbose)
                        mbedtls_printf("mbedtls_mpi_read_binary (secret key) failed\n");
                    break;
                }

                if ((result = mbedtls_ecp_check_privkey(&ecp_group, &sk)) != 0)
                {
                    if (verbose)
                        mbedtls_printf("mbedtls_ecp_check_privkey failed\n");
                    break;
                }

                if ((result = mbedtls_ecp_mul(&ecp_group, &pk, &sk, &ecp_group.G, mbedtls_ctr_drbg_random, &ctr_drbg)) != 0)
                {
                    if (verbose)
                        mbedtls_printf("mbedtls_ecp_mul failed\n");
                    break;
                }

                if ((result = mbedtls_ecp_point_read_binary(&ecp_group, &pk_ref, ecp_test_cases[i].pk, ecp_test_cases[i].pk_len)) !=
                    0)
                {
                    if (verbose)
                        mbedtls_printf("mbedtls_ecp_point_read_binary (reference public key) failed\n");
                    break;
                }

                if ((result = mbedtls_ecp_point_cmp(&pk, &pk_ref)) != 0)
                {
                    if (verbose)
                    {
                        mbedtls_printf("mbedtls_ecp_point_cmp (public key) failed\n");
                        mbedtls_printbuf("sk    :", ecp_test_cases[i].sk, ecp_test_cases[i].sk_len);
                        mbedtls_printbuf("pk ref:", ecp_test_cases[i].pk, ecp_test_cases[i].pk_len);
                        unsigned char buf[ecp_test_cases[i].pk_len];
                        size_t buf_len;
                        if (mbedtls_ecp_point_write_binary(&ecp_group, &pk, MBEDTLS_ECP_PF_UNCOMPRESSED, &buf_len, buf,
                                                           sizeof(buf)) == 0)
                            mbedtls_printbuf("pk    :", buf, buf_len);
                    }
                    break;
                }

                if ((result = mbedtls_ecp_check_pubkey(&ecp_group, &pk)) != 0)
                {
                    if (verbose)
                        mbedtls_printf("mbedtls_ecp_check_pubkey failed\n");
                    break;
                }

                if (mbedtls_ecp_get_type(&ecp_group) != MBEDTLS_ECP_TYPE_SHORT_WEIERSTRASS)
                    continue;

                if ((result = mbedtls_ecp_muladd(&ecp_group, &sum, &sk, &ecp_group.G, &sk, &pk)) != 0)
                {
                    if (verbose)
                        mbedtls_printf("mbedtls_ecp_muladd failed\n");
                    break;
                }

                if ((result =
                         mbedtls_ecp_point_read_binary(&ecp_group, &sum_ref, ecp_test_cases[i].sum, ecp_test_cases[i].pk_len)) != 0)
                {
                    if (verbose)
                        mbedtls_printf("mbedtls_ecp_point_read_binary (reference sum) failed\n");
                    break;
                }

                if ((result = mbedtls_ecp_point_cmp(&sum, &sum_ref)) != 0)
                {
                    if (verbose)
                    {
                        mbedtls_printf("mbedtls_ecp_point_cmp (sum) failed\n");
                        mbedtls_printbuf("sk     :", ecp_test_cases[i].sk, ecp_test_cases[i].sk_len);
                        mbedtls_printbuf("pk ref :", ecp_test_cases[i].pk, ecp_test_cases[i].pk_len);
                        mbedtls_printbuf("sum ref:", ecp_test_cases[i].pk, ecp_test_cases[i].pk_len);
                        unsigned char buf[ecp_test_cases[i].pk_len];
                        size_t buf_len;
                        if (mbedtls_ecp_point_write_binary(&ecp_group, &sum, MBEDTLS_ECP_PF_UNCOMPRESSED, &buf_len, buf,
                                                           sizeof(buf)) == 0)
                            mbedtls_printbuf("sum    :", buf, buf_len);
                    }
                    break;
                }

            } while (0);

            mbedtls_ecp_point_free(&sum_ref);
            mbedtls_ecp_point_free(&sum);
            mbedtls_ecp_point_free(&pk_ref);
            mbedtls_ecp_point_free(&pk);
            mbedtls_mpi_free(&sk);
            mbedtls_ecp_group_free(&ecp_group);
        }
    }
    else /* mbedtls_ctr_drbg_seed failed */
    {
        if (verbose)
            mbedtls_printf("random failed\n");
    }

    mbedtls_ctr_drbg_free(&ctr_drbg);
    mbedtls_entropy_free(&entropy);

    if (verbose)
    {
        if (result == 0)
            mbedtls_printf("test successfully finished\n");
        else
        {
            char buf[512];
            mbedtls_strerror(result, buf, sizeof(buf));
            mbedtls_printf("test failed: %s\n", buf);
        }
    }
    return result;
}

#pragma GCC diagnostic pop

#endif /* MBEDTLS_SELF_TEST */

#endif /* MBEDTLS_ECP_ALT */

#endif /* MBEDTLS_ECP_C */