/*

 *

 *    Copyright (c) 2022 Project CHIP Authors

 *

 *    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 "TestHarnessDACProvider.h"

#include <credentials/CHIPCert.h>

#include <credentials/CertificationDeclaration.h>

#include <credentials/examples/ExampleDACs.h>

#include <credentials/examples/ExamplePAI.h>

#include <crypto/CHIPCryptoPAL.h>

#include <json/json.h>

#include <lib/core/CHIPError.h>

#include <lib/support/BytesToHex.h>

#include <lib/support/Span.h>

#include <platform/CHIPDeviceConfig.h>

#include <algorithm>

#include <fstream>

#include <string>

//-> format_version = 1

//-> vendor_id = 0xFFF1/0xFFF2/0xFFF3

//-> product_id_array = [ 0x8000, 0x8001, 0x8002, 0x8003, 0x8004, 0x8005, 0x8006, 0x8007, 0x8008, 0x8009, 0x800A, 0x800B,

// 0x800C, 0x800D, 0x800E, 0x800F, 0x8010, 0x8011, 0x8012, 0x8013, 0x8014, 0x8015, 0x8016, 0x8017, 0x8018, 0x8019, 0x801A,

// 0x801B, 0x801C, 0x801D, 0x801E, 0x801F, 0x8020, 0x8021, 0x8022, 0x8023, 0x8024, 0x8025, 0x8026, 0x8027, 0x8028, 0x8029,

// 0x802A, 0x802B, 0x802C, 0x802D, 0x802E, 0x802F, 0x8030, 0x8031, 0x8032, 0x8033, 0x8034, 0x8035, 0x8036, 0x8037, 0x8038,

// 0x8039, 0x803A, 0x803B, 0x803C, 0x803D, 0x803E, 0x803F, 0x8040, 0x8041, 0x8042, 0x8043, 0x8044, 0x8045, 0x8046, 0x8047,

// 0x8048, 0x8049, 0x804A, 0x804B, 0x804C, 0x804D, 0x804E, 0x804F, 0x8050, 0x8051, 0x8052, 0x8053, 0x8054, 0x8055, 0x8056,

// 0x8057, 0x8058, 0x8059, 0x805A, 0x805B, 0x805C, 0x805D, 0x805E, 0x805F, 0x8060, 0x8061, 0x8062, 0x8063 ]

//-> device_type_id = 0x0016

//-> certificate_id = "CSA00000SWC00000-00"

//-> security_level = 0

//-> security_information = 0

//-> version_number = 1

//-> certification_type = 0

//-> dac_origin_vendor_id is not present

//-> dac_origin_product_id is not present

#if CHIP_DEVICE_CONFIG_DEVICE_VENDOR_ID == 0xFFF2

constexpr const uint8_t kCdForAllExamples[] = {

    0x30, 0x82, 0x02, 0x19, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x02, 0x0a, 0x30, 0x82,

    0x02, 0x06, 0x02, 0x01, 0x03, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30,

    0x82, 0x01, 0x70, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0xa0, 0x82, 0x01, 0x61, 0x04, 0x82, 0x01,

    0x5d, 0x15, 0x24, 0x00, 0x01, 0x25, 0x01, 0xf2, 0xff, 0x36, 0x02, 0x05, 0x00, 0x80, 0x05, 0x01, 0x80, 0x05, 0x02, 0x80, 0x05,

    0x03, 0x80, 0x05, 0x04, 0x80, 0x05, 0x05, 0x80, 0x05, 0x06, 0x80, 0x05, 0x07, 0x80, 0x05, 0x08, 0x80, 0x05, 0x09, 0x80, 0x05,

    0x0a, 0x80, 0x05, 0x0b, 0x80, 0x05, 0x0c, 0x80, 0x05, 0x0d, 0x80, 0x05, 0x0e, 0x80, 0x05, 0x0f, 0x80, 0x05, 0x10, 0x80, 0x05,

    0x11, 0x80, 0x05, 0x12, 0x80, 0x05, 0x13, 0x80, 0x05, 0x14, 0x80, 0x05, 0x15, 0x80, 0x05, 0x16, 0x80, 0x05, 0x17, 0x80, 0x05,

    0x18, 0x80, 0x05, 0x19, 0x80, 0x05, 0x1a, 0x80, 0x05, 0x1b, 0x80, 0x05, 0x1c, 0x80, 0x05, 0x1d, 0x80, 0x05, 0x1e, 0x80, 0x05,

    0x1f, 0x80, 0x05, 0x20, 0x80, 0x05, 0x21, 0x80, 0x05, 0x22, 0x80, 0x05, 0x23, 0x80, 0x05, 0x24, 0x80, 0x05, 0x25, 0x80, 0x05,

    0x26, 0x80, 0x05, 0x27, 0x80, 0x05, 0x28, 0x80, 0x05, 0x29, 0x80, 0x05, 0x2a, 0x80, 0x05, 0x2b, 0x80, 0x05, 0x2c, 0x80, 0x05,

    0x2d, 0x80, 0x05, 0x2e, 0x80, 0x05, 0x2f, 0x80, 0x05, 0x30, 0x80, 0x05, 0x31, 0x80, 0x05, 0x32, 0x80, 0x05, 0x33, 0x80, 0x05,

    0x34, 0x80, 0x05, 0x35, 0x80, 0x05, 0x36, 0x80, 0x05, 0x37, 0x80, 0x05, 0x38, 0x80, 0x05, 0x39, 0x80, 0x05, 0x3a, 0x80, 0x05,

    0x3b, 0x80, 0x05, 0x3c, 0x80, 0x05, 0x3d, 0x80, 0x05, 0x3e, 0x80, 0x05, 0x3f, 0x80, 0x05, 0x40, 0x80, 0x05, 0x41, 0x80, 0x05,

    0x42, 0x80, 0x05, 0x43, 0x80, 0x05, 0x44, 0x80, 0x05, 0x45, 0x80, 0x05, 0x46, 0x80, 0x05, 0x47, 0x80, 0x05, 0x48, 0x80, 0x05,

    0x49, 0x80, 0x05, 0x4a, 0x80, 0x05, 0x4b, 0x80, 0x05, 0x4c, 0x80, 0x05, 0x4d, 0x80, 0x05, 0x4e, 0x80, 0x05, 0x4f, 0x80, 0x05,

    0x50, 0x80, 0x05, 0x51, 0x80, 0x05, 0x52, 0x80, 0x05, 0x53, 0x80, 0x05, 0x54, 0x80, 0x05, 0x55, 0x80, 0x05, 0x56, 0x80, 0x05,

    0x57, 0x80, 0x05, 0x58, 0x80, 0x05, 0x59, 0x80, 0x05, 0x5a, 0x80, 0x05, 0x5b, 0x80, 0x05, 0x5c, 0x80, 0x05, 0x5d, 0x80, 0x05,

    0x5e, 0x80, 0x05, 0x5f, 0x80, 0x05, 0x60, 0x80, 0x05, 0x61, 0x80, 0x05, 0x62, 0x80, 0x05, 0x63, 0x80, 0x18, 0x24, 0x03, 0x16,

    0x2c, 0x04, 0x13, 0x43, 0x53, 0x41, 0x30, 0x30, 0x30, 0x30, 0x30, 0x53, 0x57, 0x43, 0x30, 0x30, 0x30, 0x30, 0x30, 0x2d, 0x30,

    0x30, 0x24, 0x05, 0x00, 0x24, 0x06, 0x00, 0x24, 0x07, 0x01, 0x24, 0x08, 0x00, 0x18, 0x31, 0x7e, 0x30, 0x7c, 0x02, 0x01, 0x03,

    0x80, 0x14, 0x62, 0xfa, 0x82, 0x33, 0x59, 0xac, 0xfa, 0xa9, 0x96, 0x3e, 0x1c, 0xfa, 0x14, 0x0a, 0xdd, 0xf5, 0x04, 0xf3, 0x71,

    0x60, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48,

    0xce, 0x3d, 0x04, 0x03, 0x02, 0x04, 0x48, 0x30, 0x46, 0x02, 0x21, 0x00, 0x8d, 0xed, 0x3d, 0xdd, 0xbb, 0x6f, 0x3c, 0x6d, 0xca,

    0xc7, 0xb5, 0x75, 0x14, 0xc5, 0x8e, 0x69, 0x4a, 0xea, 0xd4, 0xc2, 0xc8, 0x2f, 0x9b, 0x46, 0x2b, 0x73, 0xeb, 0x00, 0x3a, 0x60,

    0x41, 0xf2, 0x02, 0x21, 0x00, 0xbd, 0x95, 0xe7, 0x9e, 0xe3, 0x8c, 0x07, 0x90, 0xd6, 0x9b, 0xaa, 0x45, 0x3b, 0xfc, 0x3c, 0x74,

    0x96, 0x6c, 0x79, 0x4f, 0x1c, 0x4d, 0xd7, 0x5d, 0x15, 0x03, 0x24, 0xd8, 0xa5, 0xca, 0x82, 0x3d

};

#elif CHIP_DEVICE_CONFIG_DEVICE_VENDOR_ID == 0xFFF3

constexpr const uint8_t kCdForAllExamples[] = {

    0x30, 0x82, 0x02, 0x17, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x02, 0x08, 0x30, 0x82,

    0x02, 0x04, 0x02, 0x01, 0x03, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30,

    0x82, 0x01, 0x70, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0xa0, 0x82, 0x01, 0x61, 0x04, 0x82, 0x01,

    0x5d, 0x15, 0x24, 0x00, 0x01, 0x25, 0x01, 0xf3, 0xff, 0x36, 0x02, 0x05, 0x00, 0x80, 0x05, 0x01, 0x80, 0x05, 0x02, 0x80, 0x05,

    0x03, 0x80, 0x05, 0x04, 0x80, 0x05, 0x05, 0x80, 0x05, 0x06, 0x80, 0x05, 0x07, 0x80, 0x05, 0x08, 0x80, 0x05, 0x09, 0x80, 0x05,

    0x0a, 0x80, 0x05, 0x0b, 0x80, 0x05, 0x0c, 0x80, 0x05, 0x0d, 0x80, 0x05, 0x0e, 0x80, 0x05, 0x0f, 0x80, 0x05, 0x10, 0x80, 0x05,

    0x11, 0x80, 0x05, 0x12, 0x80, 0x05, 0x13, 0x80, 0x05, 0x14, 0x80, 0x05, 0x15, 0x80, 0x05, 0x16, 0x80, 0x05, 0x17, 0x80, 0x05,

    0x18, 0x80, 0x05, 0x19, 0x80, 0x05, 0x1a, 0x80, 0x05, 0x1b, 0x80, 0x05, 0x1c, 0x80, 0x05, 0x1d, 0x80, 0x05, 0x1e, 0x80, 0x05,

    0x1f, 0x80, 0x05, 0x20, 0x80, 0x05, 0x21, 0x80, 0x05, 0x22, 0x80, 0x05, 0x23, 0x80, 0x05, 0x24, 0x80, 0x05, 0x25, 0x80, 0x05,

    0x26, 0x80, 0x05, 0x27, 0x80, 0x05, 0x28, 0x80, 0x05, 0x29, 0x80, 0x05, 0x2a, 0x80, 0x05, 0x2b, 0x80, 0x05, 0x2c, 0x80, 0x05,

    0x2d, 0x80, 0x05, 0x2e, 0x80, 0x05, 0x2f, 0x80, 0x05, 0x30, 0x80, 0x05, 0x31, 0x80, 0x05, 0x32, 0x80, 0x05, 0x33, 0x80, 0x05,

    0x34, 0x80, 0x05, 0x35, 0x80, 0x05, 0x36, 0x80, 0x05, 0x37, 0x80, 0x05, 0x38, 0x80, 0x05, 0x39, 0x80, 0x05, 0x3a, 0x80, 0x05,

    0x3b, 0x80, 0x05, 0x3c, 0x80, 0x05, 0x3d, 0x80, 0x05, 0x3e, 0x80, 0x05, 0x3f, 0x80, 0x05, 0x40, 0x80, 0x05, 0x41, 0x80, 0x05,

    0x42, 0x80, 0x05, 0x43, 0x80, 0x05, 0x44, 0x80, 0x05, 0x45, 0x80, 0x05, 0x46, 0x80, 0x05, 0x47, 0x80, 0x05, 0x48, 0x80, 0x05,

    0x49, 0x80, 0x05, 0x4a, 0x80, 0x05, 0x4b, 0x80, 0x05, 0x4c, 0x80, 0x05, 0x4d, 0x80, 0x05, 0x4e, 0x80, 0x05, 0x4f, 0x80, 0x05,

    0x50, 0x80, 0x05, 0x51, 0x80, 0x05, 0x52, 0x80, 0x05, 0x53, 0x80, 0x05, 0x54, 0x80, 0x05, 0x55, 0x80, 0x05, 0x56, 0x80, 0x05,

    0x57, 0x80, 0x05, 0x58, 0x80, 0x05, 0x59, 0x80, 0x05, 0x5a, 0x80, 0x05, 0x5b, 0x80, 0x05, 0x5c, 0x80, 0x05, 0x5d, 0x80, 0x05,

    0x5e, 0x80, 0x05, 0x5f, 0x80, 0x05, 0x60, 0x80, 0x05, 0x61, 0x80, 0x05, 0x62, 0x80, 0x05, 0x63, 0x80, 0x18, 0x24, 0x03, 0x16,

    0x2c, 0x04, 0x13, 0x43, 0x53, 0x41, 0x30, 0x30, 0x30, 0x30, 0x30, 0x53, 0x57, 0x43, 0x30, 0x30, 0x30, 0x30, 0x30, 0x2d, 0x30,

    0x30, 0x24, 0x05, 0x00, 0x24, 0x06, 0x00, 0x24, 0x07, 0x01, 0x24, 0x08, 0x00, 0x18, 0x31, 0x7c, 0x30, 0x7a, 0x02, 0x01, 0x03,

    0x80, 0x14, 0x62, 0xfa, 0x82, 0x33, 0x59, 0xac, 0xfa, 0xa9, 0x96, 0x3e, 0x1c, 0xfa, 0x14, 0x0a, 0xdd, 0xf5, 0x04, 0xf3, 0x71,

    0x60, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48,

    0xce, 0x3d, 0x04, 0x03, 0x02, 0x04, 0x46, 0x30, 0x44, 0x02, 0x20, 0x1e, 0x14, 0xa8, 0xc6, 0x95, 0x1d, 0x50, 0x87, 0x94, 0x2f,

    0x58, 0x69, 0x38, 0x8a, 0xdc, 0x49, 0x50, 0x40, 0x63, 0x5d, 0xdf, 0xc7, 0x93, 0x8b, 0xf0, 0x8a, 0x49, 0xce, 0x8f, 0xe2, 0xf0,

    0x28, 0x02, 0x20, 0x50, 0x90, 0x96, 0x20, 0x3f, 0xab, 0xe2, 0x19, 0xf8, 0xec, 0xf0, 0xe6, 0x9b, 0xa7, 0x51, 0x79, 0x9c, 0x02,

    0x98, 0x96, 0xc7, 0xc9, 0xc8, 0x2d, 0x4b, 0xf5, 0x76, 0xd3, 0x8f, 0xbd, 0x36, 0x5b

};

#else  /* Fall back to the VID=0xFFF1 CD */

constexpr const uint8_t kCdForAllExamples[] = {

    0x30, 0x82, 0x02, 0x17, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x02, 0xa0, 0x82, 0x02, 0x08, 0x30, 0x82,

    0x02, 0x04, 0x02, 0x01, 0x03, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30,

    0x82, 0x01, 0x70, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0xa0, 0x82, 0x01, 0x61, 0x04, 0x82, 0x01,

    0x5d, 0x15, 0x24, 0x00, 0x01, 0x25, 0x01, 0xf1, 0xff, 0x36, 0x02, 0x05, 0x00, 0x80, 0x05, 0x01, 0x80, 0x05, 0x02, 0x80, 0x05,

    0x03, 0x80, 0x05, 0x04, 0x80, 0x05, 0x05, 0x80, 0x05, 0x06, 0x80, 0x05, 0x07, 0x80, 0x05, 0x08, 0x80, 0x05, 0x09, 0x80, 0x05,

    0x0a, 0x80, 0x05, 0x0b, 0x80, 0x05, 0x0c, 0x80, 0x05, 0x0d, 0x80, 0x05, 0x0e, 0x80, 0x05, 0x0f, 0x80, 0x05, 0x10, 0x80, 0x05,

    0x11, 0x80, 0x05, 0x12, 0x80, 0x05, 0x13, 0x80, 0x05, 0x14, 0x80, 0x05, 0x15, 0x80, 0x05, 0x16, 0x80, 0x05, 0x17, 0x80, 0x05,

    0x18, 0x80, 0x05, 0x19, 0x80, 0x05, 0x1a, 0x80, 0x05, 0x1b, 0x80, 0x05, 0x1c, 0x80, 0x05, 0x1d, 0x80, 0x05, 0x1e, 0x80, 0x05,

    0x1f, 0x80, 0x05, 0x20, 0x80, 0x05, 0x21, 0x80, 0x05, 0x22, 0x80, 0x05, 0x23, 0x80, 0x05, 0x24, 0x80, 0x05, 0x25, 0x80, 0x05,

    0x26, 0x80, 0x05, 0x27, 0x80, 0x05, 0x28, 0x80, 0x05, 0x29, 0x80, 0x05, 0x2a, 0x80, 0x05, 0x2b, 0x80, 0x05, 0x2c, 0x80, 0x05,

    0x2d, 0x80, 0x05, 0x2e, 0x80, 0x05, 0x2f, 0x80, 0x05, 0x30, 0x80, 0x05, 0x31, 0x80, 0x05, 0x32, 0x80, 0x05, 0x33, 0x80, 0x05,

    0x34, 0x80, 0x05, 0x35, 0x80, 0x05, 0x36, 0x80, 0x05, 0x37, 0x80, 0x05, 0x38, 0x80, 0x05, 0x39, 0x80, 0x05, 0x3a, 0x80, 0x05,

    0x3b, 0x80, 0x05, 0x3c, 0x80, 0x05, 0x3d, 0x80, 0x05, 0x3e, 0x80, 0x05, 0x3f, 0x80, 0x05, 0x40, 0x80, 0x05, 0x41, 0x80, 0x05,

    0x42, 0x80, 0x05, 0x43, 0x80, 0x05, 0x44, 0x80, 0x05, 0x45, 0x80, 0x05, 0x46, 0x80, 0x05, 0x47, 0x80, 0x05, 0x48, 0x80, 0x05,

    0x49, 0x80, 0x05, 0x4a, 0x80, 0x05, 0x4b, 0x80, 0x05, 0x4c, 0x80, 0x05, 0x4d, 0x80, 0x05, 0x4e, 0x80, 0x05, 0x4f, 0x80, 0x05,

    0x50, 0x80, 0x05, 0x51, 0x80, 0x05, 0x52, 0x80, 0x05, 0x53, 0x80, 0x05, 0x54, 0x80, 0x05, 0x55, 0x80, 0x05, 0x56, 0x80, 0x05,

    0x57, 0x80, 0x05, 0x58, 0x80, 0x05, 0x59, 0x80, 0x05, 0x5a, 0x80, 0x05, 0x5b, 0x80, 0x05, 0x5c, 0x80, 0x05, 0x5d, 0x80, 0x05,

    0x5e, 0x80, 0x05, 0x5f, 0x80, 0x05, 0x60, 0x80, 0x05, 0x61, 0x80, 0x05, 0x62, 0x80, 0x05, 0x63, 0x80, 0x18, 0x24, 0x03, 0x16,

    0x2c, 0x04, 0x13, 0x43, 0x53, 0x41, 0x30, 0x30, 0x30, 0x30, 0x30, 0x53, 0x57, 0x43, 0x30, 0x30, 0x30, 0x30, 0x30, 0x2d, 0x30,

    0x30, 0x24, 0x05, 0x00, 0x24, 0x06, 0x00, 0x24, 0x07, 0x01, 0x24, 0x08, 0x00, 0x18, 0x31, 0x7c, 0x30, 0x7a, 0x02, 0x01, 0x03,

    0x80, 0x14, 0xfe, 0x34, 0x3f, 0x95, 0x99, 0x47, 0x76, 0x3b, 0x61, 0xee, 0x45, 0x39, 0x13, 0x13, 0x38, 0x49, 0x4f, 0xe6, 0x7d,

    0x8e, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48,

    0xce, 0x3d, 0x04, 0x03, 0x02, 0x04, 0x46, 0x30, 0x44, 0x02, 0x20, 0x4a, 0x12, 0xf8, 0xd4, 0x2f, 0x90, 0x23, 0x5c, 0x05, 0xa7,

    0x71, 0x21, 0xcb, 0xeb, 0xae, 0x15, 0xd5, 0x90, 0x14, 0x65, 0x58, 0xe9, 0xc9, 0xb4, 0x7a, 0x1a, 0x38, 0xf7, 0xa3, 0x6a, 0x7d,

    0xc5, 0x02, 0x20, 0x20, 0xa4, 0x74, 0x28, 0x97, 0xc3, 0x0a, 0xed, 0xa0, 0xa5, 0x6b, 0x36, 0xe1, 0x4e, 0xbb, 0xc8, 0x5b, 0xbd,

    0xb7, 0x44, 0x93, 0xf9, 0x93, 0x58, 0x1e, 0xb0, 0x44, 0x4e, 0xd6, 0xca, 0x94, 0x0b

};

#endif // CHIP_DEVICE_CONFIG_DEVICE_VENDOR_ID

namespace chip {

namespace Credentials {

namespace Examples {

namespace {

CHIP_ERROR ReadJsonString(const Json::Value & value, CharSpan & out)

{

    const char * begin;

    const char * end;

    VerifyOrReturnError(value.getString(&begin, &end), CHIP_ERROR_INVALID_ARGUMENT);

    out = CharSpan(begin, static_cast<size_t>(end - begin));

    return CHIP_NO_ERROR;

}

bool ReadValue(Json::Value jsonValue)

{

    const std::string value = jsonValue.asString();

    if (strcmp(value.c_str(), "true") == 0)

    {

        return true;

    }

    return false;

}

ByteSpan GetProfileDocument(DeviceAttestationCertProfile profile, ByteSpan legacy, ByteSpan pqc44, ByteSpan pqc65)

{

    switch (profile)

    {

    case DeviceAttestationCertProfile::kEcdsaMatterLegacy:

        return legacy;

    case DeviceAttestationCertProfile::kMlDsa44:

        return pqc44;

    case DeviceAttestationCertProfile::kMlDsa65:

        return pqc65;

    case DeviceAttestationCertProfile::kUnknownEnumValue:

        return ByteSpan();

    }

    return ByteSpan();

}

BitMask<DeviceAttestationCertProfileBitmap> BuildProfileSupport(ByteSpan legacy, ByteSpan pqc44, ByteSpan pqc65)

{

    using SupportMask = BitMask<DeviceAttestationCertProfileBitmap>;

    SupportMask support(0);

    if (!legacy.empty())

    {

        support = SupportMask(

            support.Raw() | static_cast<SupportMask::IntegerType>(DeviceAttestationCertProfileBitmap::kSupportsEcdsaMatterLegacy));

    }

    if (!pqc44.empty())

    {

        support = SupportMask(support.Raw() |

                              static_cast<SupportMask::IntegerType>(DeviceAttestationCertProfileBitmap::kSupportsMlDsa44));

    }

    if (!pqc65.empty())

    {

        support = SupportMask(support.Raw() |

                              static_cast<SupportMask::IntegerType>(DeviceAttestationCertProfileBitmap::kSupportsMlDsa65));

    }

    return support;

}

CHIP_ERROR CopyDocumentSegment(ByteSpan document, size_t offset, MutableByteSpan & outBuffer, size_t & outDocumentSize)

{

    VerifyOrReturnError(offset < document.size(), CHIP_ERROR_INVALID_ARGUMENT);

    const size_t segmentSize = std::min(outBuffer.size(), document.size() - offset);

    outDocumentSize          = document.size();

    return CopySpanToMutableSpan(document.SubSpan(offset, segmentSize), outBuffer);

}

} // namespace

TestHarnessDACProvider::TestHarnessDACProvider()

{

    TestHarnessDACProviderData data;

    Init(data);

}

void TestHarnessDACProvider::Init(const char * filepath)

{

    std::ifstream json(filepath, std::ifstream::binary);

    if (!json)

    {

        ChipLogError(AppServer, "Error opening json file: %s", StringOrNullMarker(filepath));

        return;

    }

    // Preserve the file-based API while sharing JSON parsing with in-memory callers.

    CHIP_ERROR err = Init(json);

    if (err != CHIP_NO_ERROR)

    {

        ChipLogError(AppServer, "Error parsing json file: %s: %" CHIP_ERROR_FORMAT, StringOrNullMarker(filepath), err.Format());

    }

}

CHIP_ERROR TestHarnessDACProvider::Init(std::istream & json)

{

    Json::Reader reader;

    Json::Value root;

    VerifyOrReturnError(reader.parse(json, root) && root.isObject(), CHIP_ERROR_INVALID_ARGUMENT);

    TestHarnessDACProviderData data;

    auto readPaiProfile = [](const Json::Value & value, DeviceAttestationCertProfile & outProfile) -> CHIP_ERROR {

        VerifyOrReturnError(value.isIntegral() && value.isUInt(), CHIP_ERROR_INVALID_ARGUMENT);

        const auto raw = value.asUInt();

        VerifyOrReturnError(raw == static_cast<unsigned>(DeviceAttestationCertProfile::kEcdsaMatterLegacy) ||

                                raw == static_cast<unsigned>(DeviceAttestationCertProfile::kMlDsa44) ||

                                raw == static_cast<unsigned>(DeviceAttestationCertProfile::kMlDsa65),

                            CHIP_ERROR_INVALID_ARGUMENT);

        outProfile = static_cast<DeviceAttestationCertProfile>(raw);

        return CHIP_NO_ERROR;

    };

    if (root.isMember("pai_profile_ml_dsa_44"))

    {

        ReturnErrorOnFailure(readPaiProfile(root["pai_profile_ml_dsa_44"], data.paiProfileMlDsa44));

    }

    if (root.isMember("pai_profile_ml_dsa_65"))

    {

        ReturnErrorOnFailure(readPaiProfile(root["pai_profile_ml_dsa_65"], data.paiProfileMlDsa65));

    }

    struct HexField

    {

        const char * key;

        size_t maxSize;

        Optional<ByteSpan> & destination;

        CharSpan hex;

    };

    HexField fields[] = {

        { "dac_cert", kMaxDERCertLength, data.dacCert },

        { "dac_private_key", Crypto::kP256_PrivateKey_Length, data.dacPrivateKey },

        { "dac_public_key", Crypto::kP256_PublicKey_Length, data.dacPublicKey },

        { "dac_cert_ml_dsa_44", kMaxDERCertLengthMlDsa44, data.pqcDacCertMlDsa44 },

        { "dac_cert_ml_dsa_65", kMaxDERCertLengthMlDsa65, data.pqcDacCertMlDsa65 },

        { "pai_cert", kMaxDERCertLength, data.paiCert },

        { "pai_cert_ml_dsa_44", kMaxDERCertLengthMlDsa44, data.pqcPaiCertMlDsa44 },

        { "pai_cert_ml_dsa_65", kMaxDERCertLengthMlDsa65, data.pqcPaiCertMlDsa65 },

        { "certification_declaration", kMaxCMSSignedCDMessage, data.certificationDeclaration },

        { "firmware_information", UINT8_MAX, data.firmwareInformation },

    };

    // Bound and validate every field before allocating the decoded fixture. JsonCpp

    // owns the strings referenced by hex/description until this method returns.

    size_t storageSize = 0;

    for (auto & field : fields)

    {

        if (!root.isMember(field.key))

        {

            continue;

        }

        ReturnErrorOnFailure(ReadJsonString(root[field.key], field.hex));

        VerifyOrReturnError(field.hex.size() % 2 == 0, CHIP_ERROR_INVALID_ARGUMENT);

        VerifyOrReturnError(field.hex.size() / 2 <= field.maxSize, CHIP_ERROR_INVALID_ARGUMENT);

        for (char c : field.hex)

        {

            VerifyOrReturnError((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'),

                                CHIP_ERROR_INVALID_ARGUMENT);

        }

        storageSize += field.hex.size() / 2;

    }

    CharSpan description;

    if (root.isMember("description"))

    {

        ReturnErrorOnFailure(ReadJsonString(root["description"], description));

        // The former 256-byte buffer reserved one byte for a null terminator.

        VerifyOrReturnError(description.size() <= 255, CHIP_ERROR_INVALID_ARGUMENT);

        storageSize += description.size();

    }

    if (root.isMember("is_success_case"))

    {

        VerifyOrReturnError(root["is_success_case"].isBool() || root["is_success_case"].isString(), CHIP_ERROR_INVALID_ARGUMENT);

        data.isSuccessCase.SetValue(ReadValue(root["is_success_case"]));

    }

    if (root.isMember("basic_info_pid"))

    {

        const auto & pid = root["basic_info_pid"];

        VerifyOrReturnError(pid.isIntegral() && pid.isUInt() && pid.asUInt() <= UINT16_MAX, CHIP_ERROR_INVALID_ARGUMENT);

        data.pid.SetValue(static_cast<uint16_t>(pid.asUInt()));

    }

    Platform::ScopedMemoryBuffer<uint8_t> storage;

    VerifyOrReturnError(storageSize == 0 || storage.Alloc(storageSize), CHIP_ERROR_NO_MEMORY);

    size_t offset = 0;

    for (auto & field : fields)

    {

        if (!root.isMember(field.key))

        {

            continue;

        }

        const size_t size = field.hex.size() / 2;

        ByteSpan bytes;

        if (size != 0)

        {

            uint8_t * dest = storage.Get() + offset;

            VerifyOrReturnError(Encoding::HexToBytes(field.hex.data(), field.hex.size(), dest, size) == size,

                                CHIP_ERROR_INVALID_ARGUMENT);

            bytes = ByteSpan(dest, size);

            offset += size;

        }

        field.destination.SetValue(bytes);

    }

    if (root.isMember("description"))

    {

        CharSpan ownedDescription;

        if (!description.empty())

        {

            auto * dest = reinterpret_cast<char *>(storage.Get() + offset);

            memcpy(dest, description.data(), description.size());

            ownedDescription = CharSpan(dest, description.size());

        }

        data.description.SetValue(ownedDescription);

    }

    Init(data);

    mJsonStorage = std::move(storage);

    return CHIP_NO_ERROR;

}

void TestHarnessDACProvider::Init(const TestHarnessDACProviderData & data)

{

    mJsonStorage.Free();

    mDacCert       = data.dacCert.HasValue() ? data.dacCert.Value() : DevelopmentCerts::kDacCert;

    mDacPrivateKey = data.dacPrivateKey.HasValue() ? data.dacPrivateKey.Value() : DevelopmentCerts::kDacPrivateKey;

    mDacPublicKey  = data.dacPublicKey.HasValue() ? data.dacPublicKey.Value() : DevelopmentCerts::kDacPublicKey;

    mPaiCert       = data.paiCert.HasValue() ? data.paiCert.Value() : DevelopmentCerts::kPaiCert;

    mPqcDacCertMlDsa44 = data.pqcDacCertMlDsa44.HasValue() ? data.pqcDacCertMlDsa44.Value() : ByteSpan();

    mPqcDacCertMlDsa65 = data.pqcDacCertMlDsa65.HasValue() ? data.pqcDacCertMlDsa65.Value() : ByteSpan();

    mPqcPaiCertMlDsa44 = data.pqcPaiCertMlDsa44.HasValue() ? data.pqcPaiCertMlDsa44.Value() : ByteSpan();

    mPqcPaiCertMlDsa65 = data.pqcPaiCertMlDsa65.HasValue() ? data.pqcPaiCertMlDsa65.Value() : ByteSpan();

    mCertificationDeclaration =

        data.certificationDeclaration.HasValue() ? data.certificationDeclaration.Value() : ByteSpan{ kCdForAllExamples };

    mIsSuccessCase = data.isSuccessCase.HasValue() ? data.isSuccessCase.Value() : true;

    mDescription   = data.description.HasValue() ? data.description.Value() : CharSpan();

    // TODO: We need a real example FirmwareInformation to be populated.

    mFirmwareInformation = data.firmwareInformation.HasValue() ? data.firmwareInformation.Value() : ByteSpan();

    mPid = data.pid.ValueOr(0x8000);

    // Only complete pairs can be selected. In particular, do not mix a DAC from

    // one chain with a PAI from a different chain when a fixture is incomplete.

    const bool has44 = !mPqcPaiCertMlDsa44.empty() && !mPqcDacCertMlDsa44.empty();

    const bool has65 = !mPqcPaiCertMlDsa65.empty() && !mPqcDacCertMlDsa65.empty();

    // The storage suffix declares the PAA algorithm for that chain. It does not

    // describe the PAI's own key: pai_profile_ml_dsa_44/65 declare that separately.

    // For example, a complete _ml_dsa_65 pair with pai_profile_ml_dsa_65 = 0

    // contributes ML-DSA-65 to PAA support and only ECDSA to PAI/DAC support.

    mProfileSupport = {

        .PAASupportedProfiles =

            BuildProfileSupport(mPaiCert, has44 ? mPqcPaiCertMlDsa44 : ByteSpan(), has65 ? mPqcPaiCertMlDsa65 : ByteSpan()),

        .PAISupportedProfiles = BuildProfileSupport(mPaiCert, ByteSpan(), ByteSpan()),

        .DACSupportedProfiles = BuildProfileSupport(mDacCert, ByteSpan(), ByteSpan()),

    };

    auto addPaiProfile = [this](DeviceAttestationCertProfile profile) {

        switch (profile)

        {

        case DeviceAttestationCertProfile::kEcdsaMatterLegacy:

            mProfileSupport.PAISupportedProfiles.Set(DeviceAttestationCertProfileBitmap::kSupportsEcdsaMatterLegacy);

            break;

        case DeviceAttestationCertProfile::kMlDsa44:

            mProfileSupport.PAISupportedProfiles.Set(DeviceAttestationCertProfileBitmap::kSupportsMlDsa44);

            break;

        case DeviceAttestationCertProfile::kMlDsa65:

            mProfileSupport.PAISupportedProfiles.Set(DeviceAttestationCertProfileBitmap::kSupportsMlDsa65);

            break;

        case DeviceAttestationCertProfile::kUnknownEnumValue:

            break;

        }

    };

    if (has44)

    {

        addPaiProfile(data.paiProfileMlDsa44);

    }

    if (has65)

    {

        addPaiProfile(data.paiProfileMlDsa65);

    }

}

CHIP_ERROR TestHarnessDACProvider::GetDeviceAttestationCert(MutableByteSpan & out_dac_buffer)

{

    return CopySpanToMutableSpan(mDacCert, out_dac_buffer);

}

CHIP_ERROR TestHarnessDACProvider::GetDeviceAttestationCertForProfile(DeviceAttestationCertProfile profile,

                                                                      MutableByteSpan & out_dac_buffer)

{

    ByteSpan document = GetProfileDocument(profile, mDacCert, mPqcDacCertMlDsa44, mPqcDacCertMlDsa65);

    VerifyOrReturnError(!document.empty(), CHIP_ERROR_NOT_IMPLEMENTED);

    return CopySpanToMutableSpan(document, out_dac_buffer);

}

CHIP_ERROR TestHarnessDACProvider::GetProductAttestationIntermediateCert(MutableByteSpan & out_pai_buffer)

{

    return CopySpanToMutableSpan(mPaiCert, out_pai_buffer);

}

CHIP_ERROR TestHarnessDACProvider::GetProductAttestationIntermediateCertForProfile(DeviceAttestationCertProfile profile,

                                                                                   MutableByteSpan & out_pai_buffer)

{

    ByteSpan document = GetProfileDocument(profile, mPaiCert, mPqcPaiCertMlDsa44, mPqcPaiCertMlDsa65);

    VerifyOrReturnError(!document.empty(), CHIP_ERROR_NOT_IMPLEMENTED);

    return CopySpanToMutableSpan(document, out_pai_buffer);

}

CHIP_ERROR TestHarnessDACProvider::GetCertificationDeclaration(MutableByteSpan & out_cd_buffer)

{

    return CopySpanToMutableSpan(mCertificationDeclaration, out_cd_buffer);

}

CHIP_ERROR TestHarnessDACProvider::GetFirmwareInformation(MutableByteSpan & out_firmware_info_buffer)

{

    return CopySpanToMutableSpan(mFirmwareInformation, out_firmware_info_buffer);

}

CHIP_ERROR TestHarnessDACProvider::SignWithDeviceAttestationKey(const ByteSpan & message_to_sign,

                                                                MutableByteSpan & out_signature_buffer)

{

    Crypto::P256ECDSASignature signature;

    Crypto::P256Keypair keypair;

    VerifyOrReturnError(!out_signature_buffer.empty(), CHIP_ERROR_INVALID_ARGUMENT);

    VerifyOrReturnError(!message_to_sign.empty(), CHIP_ERROR_INVALID_ARGUMENT);

    VerifyOrReturnError(out_signature_buffer.size() >= signature.Capacity(), CHIP_ERROR_BUFFER_TOO_SMALL);

    // In a non-exemplary implementation, the public key is not needed here. It is used here merely because

    // Crypto::P256Keypair is only (currently) constructable from raw keys if both private/public keys are present.

    ReturnErrorOnFailure(keypair.HazardousOperationLoadKeypairFromRaw(mDacPrivateKey, mDacPublicKey));

    ReturnErrorOnFailure(keypair.ECDSA_sign_msg(message_to_sign.data(), message_to_sign.size(), signature));

    return CopySpanToMutableSpan(ByteSpan{ signature.ConstBytes(), signature.Length() }, out_signature_buffer);

}

DeviceAttestationProfileSupport TestHarnessDACProvider::GetDeviceAttestationProfileSupport() const

{

    return mProfileSupport;

}

DeviceAttestationCertProfile TestHarnessDACProvider::GetPreferredDeviceAttestationChainProfile() const

{

    if (!mPqcPaiCertMlDsa65.empty() && !mPqcDacCertMlDsa65.empty())

    {

        return DeviceAttestationCertProfile::kMlDsa65;

    }

    if (!mPqcPaiCertMlDsa44.empty() && !mPqcDacCertMlDsa44.empty())

    {

        return DeviceAttestationCertProfile::kMlDsa44;

    }

    return DeviceAttestationCertProfile::kEcdsaMatterLegacy;

}

CHIP_ERROR TestHarnessDACProvider::GetDeviceAttestationDocumentSegment(DeviceAttestationDocumentType documentType,

                                                                       DeviceAttestationCertProfile profile, size_t offset,

                                                                       MutableByteSpan & out_document_buffer,

                                                                       size_t & out_document_size)

{

    ByteSpan document;

    switch (documentType)

    {

    case DeviceAttestationDocumentType::kDACCertificate:

        document = GetProfileDocument(profile, mDacCert, mPqcDacCertMlDsa44, mPqcDacCertMlDsa65);

        break;

    case DeviceAttestationDocumentType::kPAICertificate:

        document = GetProfileDocument(profile, mPaiCert, mPqcPaiCertMlDsa44, mPqcPaiCertMlDsa65);

        break;

    default:

        return CHIP_ERROR_INVALID_ARGUMENT;

    }

    VerifyOrReturnError(!document.empty(), CHIP_ERROR_NOT_IMPLEMENTED);

    return CopyDocumentSegment(document, offset, out_document_buffer, out_document_size);

}

} // namespace Examples

} // namespace Credentials

} // namespace chip