diff --git a/config/ameba/chip.cmake b/config/ameba/chip.cmake index 2e665c65339d08..a6e696882a0c9d 100644 --- a/config/ameba/chip.cmake +++ b/config/ameba/chip.cmake @@ -104,6 +104,7 @@ string(APPEND CHIP_GN_ARGS "ameba_cc = \"arm-none-eabi-gcc\"\n") string(APPEND CHIP_GN_ARGS "ameba_cxx = \"arm-none-eabi-c++\"\n") string(APPEND CHIP_GN_ARGS "ameba_cpu = \"ameba\"\n") string(APPEND CHIP_GN_ARGS "chip_inet_config_enable_ipv4 = false\n") +string(APPEND CHIP_GN_ARGS "chip_use_transitional_commissionable_data_provider = false\n") # Enable persistent storage audit if (matter_enable_persistentstorage_audit) diff --git a/examples/all-clusters-app/ameba/main/chipinterface.cpp b/examples/all-clusters-app/ameba/main/chipinterface.cpp index d0ca38ab0cf070..918de3cb7594fa 100644 --- a/examples/all-clusters-app/ameba/main/chipinterface.cpp +++ b/examples/all-clusters-app/ameba/main/chipinterface.cpp @@ -35,6 +35,7 @@ #include #include #include +#include #include #include #include @@ -96,6 +97,7 @@ Identify gIdentify1 = { static DeviceCallbacks EchoCallbacks; chip::DeviceLayer::DeviceInfoProviderImpl gExampleDeviceInfoProvider; +chip::DeviceLayer::FactoryDataProvider mFactoryDataProvider; static void InitServer(intptr_t context) { @@ -106,8 +108,6 @@ static void InitServer(intptr_t context) gExampleDeviceInfoProvider.SetStorageDelegate(&Server::GetInstance().GetPersistentStorage()); chip::DeviceLayer::SetDeviceInfoProvider(&gExampleDeviceInfoProvider); - // Initialize device attestation config - SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider()); NetWorkCommissioningInstInit(); if (RTW_SUCCESS != wifi_is_connected_to_ap()) @@ -130,6 +130,11 @@ extern "C" void ChipTest(void) initPref(); + // Initialize device attestation, commissionable data and device instance info + // TODO: Use our own DeviceInstanceInfoProvider + // SetDeviceInstanceInfoProvider(&mFactoryDataProvider); + SetCommissionableDataProvider(&mFactoryDataProvider); + SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider); CHIPDeviceManager & deviceMgr = CHIPDeviceManager::GetInstance(); err = deviceMgr.Init(&EchoCallbacks); diff --git a/examples/light-switch-app/ameba/main/chipinterface.cpp b/examples/light-switch-app/ameba/main/chipinterface.cpp index b0a8b6dd1d6ce3..fcdf8b963fc7bc 100644 --- a/examples/light-switch-app/ameba/main/chipinterface.cpp +++ b/examples/light-switch-app/ameba/main/chipinterface.cpp @@ -35,6 +35,7 @@ #include #include #include +#include #include #include #include @@ -96,6 +97,7 @@ Identify gIdentify1 = { static DeviceCallbacks EchoCallbacks; chip::DeviceLayer::DeviceInfoProviderImpl gExampleDeviceInfoProvider; +chip::DeviceLayer::FactoryDataProvider mFactoryDataProvider; static void InitServer(intptr_t context) { @@ -106,8 +108,6 @@ static void InitServer(intptr_t context) gExampleDeviceInfoProvider.SetStorageDelegate(&Server::GetInstance().GetPersistentStorage()); chip::DeviceLayer::SetDeviceInfoProvider(&gExampleDeviceInfoProvider); - // Initialize device attestation config - SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider()); NetWorkCommissioningInstInit(); if (RTW_SUCCESS != wifi_is_connected_to_ap()) @@ -130,6 +130,11 @@ extern "C" void ChipTest(void) initPref(); + // Initialize device attestation, commissionable data and device instance info + // TODO: Use our own DeviceInstanceInfoProvider + // SetDeviceInstanceInfoProvider(&mFactoryDataProvider); + SetCommissionableDataProvider(&mFactoryDataProvider); + SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider); CHIPDeviceManager & deviceMgr = CHIPDeviceManager::GetInstance(); err = deviceMgr.Init(&EchoCallbacks); diff --git a/examples/lighting-app/ameba/main/chipinterface.cpp b/examples/lighting-app/ameba/main/chipinterface.cpp index 9520719ebdfd2e..a45222a1207c30 100644 --- a/examples/lighting-app/ameba/main/chipinterface.cpp +++ b/examples/lighting-app/ameba/main/chipinterface.cpp @@ -36,6 +36,7 @@ #include #include #include +#include #include #include #include @@ -80,6 +81,7 @@ void NetWorkCommissioningInstInit() static DeviceCallbacks EchoCallbacks; chip::DeviceLayer::DeviceInfoProviderImpl gExampleDeviceInfoProvider; +chip::DeviceLayer::FactoryDataProvider mFactoryDataProvider; void OnIdentifyStart(Identify *) { @@ -126,8 +128,6 @@ static void InitServer(intptr_t context) gExampleDeviceInfoProvider.SetStorageDelegate(&Server::GetInstance().GetPersistentStorage()); chip::DeviceLayer::SetDeviceInfoProvider(&gExampleDeviceInfoProvider); - // Initialize device attestation config - SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider()); NetWorkCommissioningInstInit(); if (RTW_SUCCESS != wifi_is_connected_to_ap()) @@ -148,6 +148,11 @@ extern "C" void ChipTest(void) initPref(); + // Initialize device attestation, commissionable data and device instance info + // TODO: Use our own DeviceInstanceInfoProvider + // SetDeviceInstanceInfoProvider(&mFactoryDataProvider); + SetCommissionableDataProvider(&mFactoryDataProvider); + SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider); CHIPDeviceManager & deviceMgr = CHIPDeviceManager::GetInstance(); err = deviceMgr.Init(&EchoCallbacks); diff --git a/examples/ota-requestor-app/ameba/main/chipinterface.cpp b/examples/ota-requestor-app/ameba/main/chipinterface.cpp index 76517f6866c976..fa9ff27da75887 100644 --- a/examples/ota-requestor-app/ameba/main/chipinterface.cpp +++ b/examples/ota-requestor-app/ameba/main/chipinterface.cpp @@ -30,6 +30,7 @@ #include #include +#include #include #include #include @@ -75,6 +76,7 @@ void NetWorkCommissioningInstInit() static DeviceCallbacks EchoCallbacks; chip::DeviceLayer::DeviceInfoProviderImpl gExampleDeviceInfoProvider; +chip::DeviceLayer::FactoryDataProvider mFactoryDataProvider; static void InitServer(intptr_t context) { @@ -85,8 +87,6 @@ static void InitServer(intptr_t context) gExampleDeviceInfoProvider.SetStorageDelegate(&Server::GetInstance().GetPersistentStorage()); chip::DeviceLayer::SetDeviceInfoProvider(&gExampleDeviceInfoProvider); - // Initialize device attestation config - SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider()); NetWorkCommissioningInstInit(); } @@ -97,6 +97,12 @@ extern "C" void ChipTest(void) initPref(); + // Initialize device attestation, commissionable data and device instance info + // TODO: Use our own DeviceInstanceInfoProvider + // SetDeviceInstanceInfoProvider(&mFactoryDataProvider); + SetCommissionableDataProvider(&mFactoryDataProvider); + SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider); + CHIPDeviceManager & deviceMgr = CHIPDeviceManager::GetInstance(); err = deviceMgr.Init(&EchoCallbacks); if (err != CHIP_NO_ERROR) diff --git a/src/platform/Ameba/BUILD.gn b/src/platform/Ameba/BUILD.gn index f9524f21487989..650b744f0d4ea1 100755 --- a/src/platform/Ameba/BUILD.gn +++ b/src/platform/Ameba/BUILD.gn @@ -37,6 +37,8 @@ static_library("Ameba") { "DeviceNetworkProvisioningDelegateImpl.h", "DiagnosticDataProviderImpl.cpp", "DiagnosticDataProviderImpl.h", + "FactoryDataProvider.cpp", + "FactoryDataProvider.h", "KeyValueStoreManagerImpl.cpp", "KeyValueStoreManagerImpl.h", "Logging.cpp", @@ -55,6 +57,8 @@ static_library("Ameba") { "${chip_root}/src/setup_payload", ] + public = [ "${chip_root}/src/credentials/DeviceAttestationCredsProvider.h" ] + public_deps = [ "${chip_root}/src/crypto", "${chip_root}/src/platform:platform_base", diff --git a/src/platform/Ameba/FactoryDataProvider.cpp b/src/platform/Ameba/FactoryDataProvider.cpp new file mode 100644 index 00000000000000..ac659fa40a169b --- /dev/null +++ b/src/platform/Ameba/FactoryDataProvider.cpp @@ -0,0 +1,389 @@ +/* + * + * 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 "FactoryDataProvider.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +using namespace ::chip::DeviceLayer::Internal; + +namespace chip { +namespace DeviceLayer { + +// TODO: This should be moved to a method of P256Keypair +CHIP_ERROR LoadKeypairFromRaw(ByteSpan private_key, ByteSpan public_key, Crypto::P256Keypair & keypair) +{ + Crypto::P256SerializedKeypair serialized_keypair; + ReturnErrorOnFailure(serialized_keypair.SetLength(private_key.size() + public_key.size())); + memcpy(serialized_keypair.Bytes(), public_key.data(), public_key.size()); + memcpy(serialized_keypair.Bytes() + public_key.size(), private_key.data(), private_key.size()); + return keypair.Deserialize(serialized_keypair); +} + +CHIP_ERROR FactoryDataProvider::GetCertificationDeclaration(MutableByteSpan & outBuffer) +{ + // TODO: CD is Hardcoded temporarily, will read from flash/efuse in the future + + //-> format_version = 1 + //-> vendor_id = 0xFFF1 + //-> 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 = "ZIG20142ZB330003-24" + //-> security_level = 0 + //-> security_information = 0 + //-> version_number = 0x2694 + //-> certification_type = 0 + //-> dac_origin_vendor_id is not present + //-> dac_origin_product_id is not present + + const uint8_t kCdForAllExamples[541] = { + 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, 0x71, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x07, 0x01, 0xa0, 0x82, 0x01, 0x62, + 0x04, 0x82, 0x01, 0x5e, 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, 0x5a, 0x49, 0x47, 0x32, 0x30, 0x31, 0x34, 0x32, 0x5a, 0x42, 0x33, 0x33, 0x30, 0x30, 0x30, 0x33, 0x2d, 0x32, 0x34, + 0x24, 0x05, 0x00, 0x24, 0x06, 0x00, 0x25, 0x07, 0x94, 0x26, 0x24, 0x08, 0x00, 0x18, 0x31, 0x7d, 0x30, 0x7b, 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, 0x47, 0x30, 0x45, 0x02, 0x20, 0x24, 0xe5, 0xd1, 0xf4, 0x7a, 0x7d, + 0x7b, 0x0d, 0x20, 0x6a, 0x26, 0xef, 0x69, 0x9b, 0x7c, 0x97, 0x57, 0xb7, 0x2d, 0x46, 0x90, 0x89, 0xde, 0x31, 0x92, 0xe6, + 0x78, 0xc7, 0x45, 0xe7, 0xf6, 0x0c, 0x02, 0x21, 0x00, 0xf8, 0xaa, 0x2f, 0xa7, 0x11, 0xfc, 0xb7, 0x9b, 0x97, 0xe3, 0x97, + 0xce, 0xda, 0x66, 0x7b, 0xae, 0x46, 0x4e, 0x2b, 0xd3, 0xff, 0xdf, 0xc3, 0xcc, 0xed, 0x7a, 0xa8, 0xca, 0x5f, 0x4c, 0x1a, + 0x7c, + }; + + return CopySpanToMutableSpan(ByteSpan(kCdForAllExamples), outBuffer); +} + +CHIP_ERROR FactoryDataProvider::GetFirmwareInformation(MutableByteSpan & out_firmware_info_buffer) +{ + // TODO: We need a real example FirmwareInformation to be populated. + out_firmware_info_buffer.reduce_size(0); + + return CHIP_NO_ERROR; +} + +CHIP_ERROR FactoryDataProvider::GetDeviceAttestationCert(MutableByteSpan & outBuffer) +{ + // TODO: DAC is Hardcoded temporarily, will read from flash/efuse in the future + + const uint8_t kDacCert[491] = { + 0x30, 0x82, 0x01, 0xe7, 0x30, 0x82, 0x01, 0x8e, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x08, 0x69, 0xcd, 0xf1, 0x0d, 0xe9, + 0xe5, 0x4e, 0xd1, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x30, 0x3d, 0x31, 0x25, 0x30, + 0x23, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x1c, 0x4d, 0x61, 0x74, 0x74, 0x65, 0x72, 0x20, 0x44, 0x65, 0x76, 0x20, 0x50, + 0x41, 0x49, 0x20, 0x30, 0x78, 0x46, 0x46, 0x46, 0x31, 0x20, 0x6e, 0x6f, 0x20, 0x50, 0x49, 0x44, 0x31, 0x14, 0x30, 0x12, + 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x01, 0x0c, 0x04, 0x46, 0x46, 0x46, 0x31, 0x30, 0x20, + 0x17, 0x0d, 0x32, 0x32, 0x30, 0x32, 0x30, 0x35, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x5a, 0x18, 0x0f, 0x39, 0x39, 0x39, + 0x39, 0x31, 0x32, 0x33, 0x31, 0x32, 0x33, 0x35, 0x39, 0x35, 0x39, 0x5a, 0x30, 0x53, 0x31, 0x25, 0x30, 0x23, 0x06, 0x03, + 0x55, 0x04, 0x03, 0x0c, 0x1c, 0x4d, 0x61, 0x74, 0x74, 0x65, 0x72, 0x20, 0x44, 0x65, 0x76, 0x20, 0x44, 0x41, 0x43, 0x20, + 0x30, 0x78, 0x46, 0x46, 0x46, 0x31, 0x2f, 0x30, 0x78, 0x38, 0x30, 0x30, 0x31, 0x31, 0x14, 0x30, 0x12, 0x06, 0x0a, 0x2b, + 0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x01, 0x0c, 0x04, 0x46, 0x46, 0x46, 0x31, 0x31, 0x14, 0x30, 0x12, 0x06, + 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x02, 0x0c, 0x04, 0x38, 0x30, 0x30, 0x31, 0x30, 0x59, 0x30, + 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, + 0x03, 0x42, 0x00, 0x04, 0x46, 0x3a, 0xc6, 0x93, 0x42, 0x91, 0x0a, 0x0e, 0x55, 0x88, 0xfc, 0x6f, 0xf5, 0x6b, 0xb6, 0x3e, + 0x62, 0xec, 0xce, 0xcb, 0x14, 0x8f, 0x7d, 0x4e, 0xb0, 0x3e, 0xe5, 0x52, 0x60, 0x14, 0x15, 0x76, 0x7d, 0x16, 0xa5, 0xc6, + 0x63, 0xf7, 0x93, 0xe4, 0x91, 0x23, 0x26, 0x0b, 0x82, 0x97, 0xa7, 0xcd, 0x7e, 0x7c, 0xfc, 0x7b, 0x31, 0x6b, 0x39, 0xd9, + 0x8e, 0x90, 0xd2, 0x93, 0x77, 0x73, 0x8e, 0x82, 0xa3, 0x60, 0x30, 0x5e, 0x30, 0x0c, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, + 0x01, 0xff, 0x04, 0x02, 0x30, 0x00, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, + 0x07, 0x80, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x88, 0xdd, 0xe7, 0xb3, 0x00, 0x38, 0x29, + 0x32, 0xcf, 0xf7, 0x34, 0xc0, 0x46, 0x24, 0x81, 0x0f, 0x44, 0x16, 0x8a, 0x6f, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, + 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x63, 0x54, 0x0e, 0x47, 0xf6, 0x4b, 0x1c, 0x38, 0xd1, 0x38, 0x84, 0xa4, 0x62, 0xd1, + 0x6c, 0x19, 0x5d, 0x8f, 0xfb, 0x3c, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x47, + 0x00, 0x30, 0x44, 0x02, 0x20, 0x01, 0x27, 0xa2, 0x7b, 0x4b, 0x44, 0x61, 0x0e, 0xe2, 0xfc, 0xdc, 0x4d, 0x2b, 0x78, 0x85, + 0x56, 0x36, 0x60, 0xbc, 0x0f, 0x76, 0xf1, 0x72, 0x19, 0xed, 0x6a, 0x08, 0xdf, 0xb2, 0xb3, 0xc1, 0xcd, 0x02, 0x20, 0x6b, + 0x59, 0xe0, 0xaf, 0x45, 0xf3, 0xeb, 0x2a, 0x85, 0xb9, 0x19, 0xd3, 0x57, 0x31, 0x52, 0x8c, 0x60, 0x28, 0xc4, 0x15, 0x23, + 0x95, 0x45, 0xe1, 0x08, 0xe4, 0xe5, 0x4e, 0x70, 0x97, 0x13, 0x53, + }; + return CopySpanToMutableSpan(ByteSpan(kDacCert), outBuffer); +} + +CHIP_ERROR FactoryDataProvider::GetProductAttestationIntermediateCert(MutableByteSpan & outBuffer) +{ + // TODO: PAI is Hardcoded temporarily, will read from flash/efuse in the future + + const uint8_t kPaiCert[463] = { + 0x30, 0x82, 0x01, 0xcb, 0x30, 0x82, 0x01, 0x71, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x08, 0x56, 0xad, 0x82, 0x22, 0xad, + 0x94, 0x5b, 0x64, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x30, 0x30, 0x31, 0x18, 0x30, + 0x16, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x0f, 0x4d, 0x61, 0x74, 0x74, 0x65, 0x72, 0x20, 0x54, 0x65, 0x73, 0x74, 0x20, + 0x50, 0x41, 0x41, 0x31, 0x14, 0x30, 0x12, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x01, 0x0c, + 0x04, 0x46, 0x46, 0x46, 0x31, 0x30, 0x20, 0x17, 0x0d, 0x32, 0x32, 0x30, 0x32, 0x30, 0x35, 0x30, 0x30, 0x30, 0x30, 0x30, + 0x30, 0x5a, 0x18, 0x0f, 0x39, 0x39, 0x39, 0x39, 0x31, 0x32, 0x33, 0x31, 0x32, 0x33, 0x35, 0x39, 0x35, 0x39, 0x5a, 0x30, + 0x3d, 0x31, 0x25, 0x30, 0x23, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x1c, 0x4d, 0x61, 0x74, 0x74, 0x65, 0x72, 0x20, 0x44, + 0x65, 0x76, 0x20, 0x50, 0x41, 0x49, 0x20, 0x30, 0x78, 0x46, 0x46, 0x46, 0x31, 0x20, 0x6e, 0x6f, 0x20, 0x50, 0x49, 0x44, + 0x31, 0x14, 0x30, 0x12, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0xa2, 0x7c, 0x02, 0x01, 0x0c, 0x04, 0x46, 0x46, + 0x46, 0x31, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, + 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0x41, 0x9a, 0x93, 0x15, 0xc2, 0x17, 0x3e, 0x0c, 0x8c, 0x87, 0x6d, + 0x03, 0xcc, 0xfc, 0x94, 0x48, 0x52, 0x64, 0x7f, 0x7f, 0xec, 0x5e, 0x50, 0x82, 0xf4, 0x05, 0x99, 0x28, 0xec, 0xa8, 0x94, + 0xc5, 0x94, 0x15, 0x13, 0x09, 0xac, 0x63, 0x1e, 0x4c, 0xb0, 0x33, 0x92, 0xaf, 0x68, 0x4b, 0x0b, 0xaf, 0xb7, 0xe6, 0x5b, + 0x3b, 0x81, 0x62, 0xc2, 0xf5, 0x2b, 0xf9, 0x31, 0xb8, 0xe7, 0x7a, 0xaa, 0x82, 0xa3, 0x66, 0x30, 0x64, 0x30, 0x12, 0x06, + 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x08, 0x30, 0x06, 0x01, 0x01, 0xff, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x06, + 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x01, 0x06, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, + 0x04, 0x16, 0x04, 0x14, 0x63, 0x54, 0x0e, 0x47, 0xf6, 0x4b, 0x1c, 0x38, 0xd1, 0x38, 0x84, 0xa4, 0x62, 0xd1, 0x6c, 0x19, + 0x5d, 0x8f, 0xfb, 0x3c, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x6a, 0xfd, 0x22, + 0x77, 0x1f, 0x51, 0x1f, 0xec, 0xbf, 0x16, 0x41, 0x97, 0x67, 0x10, 0xdc, 0xdc, 0x31, 0xa1, 0x71, 0x7e, 0x30, 0x0a, 0x06, + 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x48, 0x00, 0x30, 0x45, 0x02, 0x21, 0x00, 0xb2, 0xef, 0x27, + 0xf4, 0x9a, 0xe9, 0xb5, 0x0f, 0xb9, 0x1e, 0xea, 0xc9, 0x4c, 0x4d, 0x0b, 0xdb, 0xb8, 0xd7, 0x92, 0x9c, 0x6c, 0xb8, 0x8f, + 0xac, 0xe5, 0x29, 0x36, 0x8d, 0x12, 0x05, 0x4c, 0x0c, 0x02, 0x20, 0x65, 0x5d, 0xc9, 0x2b, 0x86, 0xbd, 0x90, 0x98, 0x82, + 0xa6, 0xc6, 0x21, 0x77, 0xb8, 0x25, 0xd7, 0xd0, 0x5e, 0xdb, 0xe7, 0xc2, 0x2f, 0x9f, 0xea, 0x71, 0x22, 0x0e, 0x7e, 0xa7, + 0x03, 0xf8, 0x91, + }; + return CopySpanToMutableSpan(ByteSpan{ kPaiCert }, outBuffer); +} + +CHIP_ERROR FactoryDataProvider::SignWithDeviceAttestationKey(const ByteSpan & messageToSign, MutableByteSpan & outSignBuffer) +{ + // TODO: DAC keys are Hardcoded temporarily, will read from flash/efuse in the future + + const uint8_t kDacPublicKey[65] = { + 0x04, 0x46, 0x3a, 0xc6, 0x93, 0x42, 0x91, 0x0a, 0x0e, 0x55, 0x88, 0xfc, 0x6f, 0xf5, 0x6b, 0xb6, 0x3e, + 0x62, 0xec, 0xce, 0xcb, 0x14, 0x8f, 0x7d, 0x4e, 0xb0, 0x3e, 0xe5, 0x52, 0x60, 0x14, 0x15, 0x76, 0x7d, + 0x16, 0xa5, 0xc6, 0x63, 0xf7, 0x93, 0xe4, 0x91, 0x23, 0x26, 0x0b, 0x82, 0x97, 0xa7, 0xcd, 0x7e, 0x7c, + 0xfc, 0x7b, 0x31, 0x6b, 0x39, 0xd9, 0x8e, 0x90, 0xd2, 0x93, 0x77, 0x73, 0x8e, 0x82, + }; + + const uint8_t kDacPrivateKey[32] = { + 0xaa, 0xb6, 0x00, 0xae, 0x8a, 0xe8, 0xaa, 0xb7, 0xd7, 0x36, 0x27, 0xc2, 0x17, 0xb7, 0xc2, 0x04, + 0x70, 0x9c, 0xa6, 0x94, 0x6a, 0xf5, 0xf2, 0xf7, 0x53, 0x08, 0x33, 0xa5, 0x2b, 0x44, 0xfb, 0xff, + }; + + Crypto::P256ECDSASignature signature; + Crypto::P256Keypair keypair; + + VerifyOrReturnError(IsSpanUsable(outSignBuffer), CHIP_ERROR_INVALID_ARGUMENT); + VerifyOrReturnError(IsSpanUsable(messageToSign), CHIP_ERROR_INVALID_ARGUMENT); + VerifyOrReturnError(outSignBuffer.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(LoadKeypairFromRaw(ByteSpan(kDacPrivateKey), ByteSpan(kDacPublicKey), keypair)); + ReturnErrorOnFailure(keypair.ECDSA_sign_msg(messageToSign.data(), messageToSign.size(), signature)); + + return CopySpanToMutableSpan(ByteSpan{ signature.ConstBytes(), signature.Length() }, outSignBuffer); +} + +CHIP_ERROR FactoryDataProvider::GetSetupDiscriminator(uint16_t & setupDiscriminator) +{ + CHIP_ERROR err = CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND; + uint32_t val; + +#if defined(CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR) && CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR + val = CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR; + err = CHIP_NO_ERROR; +#endif // defined(CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR) && CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR + + setupDiscriminator = static_cast(val); + + return err; +} + +CHIP_ERROR FactoryDataProvider::SetSetupDiscriminator(uint16_t setupDiscriminator) +{ + return CHIP_ERROR_NOT_IMPLEMENTED; +} + +CHIP_ERROR FactoryDataProvider::GetSpake2pIterationCount(uint32_t & iterationCount) +{ + CHIP_ERROR err = CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND; + +#if defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT) && CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT + iterationCount = CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT; + err = CHIP_NO_ERROR; +#endif // defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT) && CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_ITERATION_COUNT + + return err; +} + +CHIP_ERROR FactoryDataProvider::GetSpake2pSalt(MutableByteSpan & saltBuf) +{ + static constexpr size_t kSpake2pSalt_MaxBase64Len = BASE64_ENCODED_LEN(chip::Crypto::kSpake2p_Max_PBKDF_Salt_Length) + 1; + + CHIP_ERROR err = CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND; + char saltB64[kSpake2pSalt_MaxBase64Len] = { 0 }; + size_t saltB64Len = 0; + +#if defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_SALT) + saltB64Len = strlen(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_SALT); + ReturnErrorCodeIf(saltB64Len > sizeof(saltB64), CHIP_ERROR_BUFFER_TOO_SMALL); + memcpy(saltB64, CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_SALT, saltB64Len); + err = CHIP_NO_ERROR; +#endif // defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_SALT) + + ReturnErrorOnFailure(err); + size_t saltLen = chip::Base64Decode32(saltB64, saltB64Len, reinterpret_cast(saltB64)); + + ReturnErrorCodeIf(saltLen > saltBuf.size(), CHIP_ERROR_BUFFER_TOO_SMALL); + memcpy(saltBuf.data(), saltB64, saltLen); + saltBuf.reduce_size(saltLen); + + return CHIP_NO_ERROR; +} + +CHIP_ERROR FactoryDataProvider::GetSpake2pVerifier(MutableByteSpan & verifierBuf, size_t & verifierLen) +{ + static constexpr size_t kSpake2pSerializedVerifier_MaxBase64Len = + BASE64_ENCODED_LEN(chip::Crypto::kSpake2p_VerifierSerialized_Length) + 1; + + CHIP_ERROR err = CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND; + char verifierB64[kSpake2pSerializedVerifier_MaxBase64Len] = { 0 }; + size_t verifierB64Len = 0; + +#if defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_VERIFIER) + verifierB64Len = strlen(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_VERIFIER); + ReturnErrorCodeIf(verifierB64Len > sizeof(verifierB64), CHIP_ERROR_BUFFER_TOO_SMALL); + memcpy(verifierB64, CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_VERIFIER, verifierB64Len); + err = CHIP_NO_ERROR; +#endif // defined(CHIP_DEVICE_CONFIG_USE_TEST_SPAKE2P_VERIFIER) + + ReturnErrorOnFailure(err); + verifierLen = chip::Base64Decode32(verifierB64, verifierB64Len, reinterpret_cast(verifierB64)); + ReturnErrorCodeIf(verifierLen > verifierBuf.size(), CHIP_ERROR_BUFFER_TOO_SMALL); + memcpy(verifierBuf.data(), verifierB64, verifierLen); + verifierBuf.reduce_size(verifierLen); + + return err; +} + +CHIP_ERROR FactoryDataProvider::GetSetupPasscode(uint32_t & setupPasscode) +{ + CHIP_ERROR err = CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND; + +#if defined(CHIP_DEVICE_CONFIG_USE_TEST_SETUP_PIN_CODE) && CHIP_DEVICE_CONFIG_USE_TEST_SETUP_PIN_CODE + setupPasscode = CHIP_DEVICE_CONFIG_USE_TEST_SETUP_PIN_CODE; + err = CHIP_NO_ERROR; +#endif // defined(CHIP_DEVICE_CONFIG_USE_TEST_SETUP_PIN_CODE) && CHIP_DEVICE_CONFIG_USE_TEST_SETUP_PIN_CODE + + return err; +} + +CHIP_ERROR FactoryDataProvider::SetSetupPasscode(uint32_t setupPasscode) +{ + return CHIP_ERROR_NOT_IMPLEMENTED; +} + +CHIP_ERROR FactoryDataProvider::GetVendorName(char * buf, size_t bufSize) +{ + ReturnErrorCodeIf(bufSize < sizeof(CHIP_DEVICE_CONFIG_DEVICE_VENDOR_NAME), CHIP_ERROR_BUFFER_TOO_SMALL); + strcpy(buf, CHIP_DEVICE_CONFIG_DEVICE_VENDOR_NAME); + return CHIP_NO_ERROR; +} + +CHIP_ERROR FactoryDataProvider::GetVendorId(uint16_t & vendorId) +{ + vendorId = static_cast(CHIP_DEVICE_CONFIG_DEVICE_VENDOR_ID); + return CHIP_NO_ERROR; +} + +CHIP_ERROR FactoryDataProvider::GetProductName(char * buf, size_t bufSize) +{ + ReturnErrorCodeIf(bufSize < sizeof(CHIP_DEVICE_CONFIG_DEVICE_PRODUCT_NAME), CHIP_ERROR_BUFFER_TOO_SMALL); + strcpy(buf, CHIP_DEVICE_CONFIG_DEVICE_PRODUCT_NAME); + return CHIP_NO_ERROR; +} + +CHIP_ERROR FactoryDataProvider::GetProductId(uint16_t & productId) +{ + productId = static_cast(CHIP_DEVICE_CONFIG_DEVICE_PRODUCT_ID); + return CHIP_NO_ERROR; +} + +CHIP_ERROR FactoryDataProvider::GetSerialNumber(char * buf, size_t bufSize) +{ + ChipError err = CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND; + size_t serialNumLen = 0; // without counting null-terminator + +#ifdef CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER + if (CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER[0] != 0) + { + ReturnErrorCodeIf(sizeof(CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER) > bufSize, CHIP_ERROR_BUFFER_TOO_SMALL); + memcpy(buf, CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER, sizeof(CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER)); + serialNumLen = sizeof(CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER) - 1; + err = CHIP_NO_ERROR; + } +#endif // CHIP_DEVICE_CONFIG_TEST_SERIAL_NUMBER + + ReturnErrorCodeIf(serialNumLen >= bufSize, CHIP_ERROR_BUFFER_TOO_SMALL); + ReturnErrorCodeIf(buf[serialNumLen] != 0, CHIP_ERROR_INVALID_STRING_LENGTH); + + return err; +} + +CHIP_ERROR FactoryDataProvider::GetManufacturingDate(uint16_t & year, uint8_t & month, uint8_t & day) +{ + return CHIP_ERROR_NOT_IMPLEMENTED; +} + +CHIP_ERROR FactoryDataProvider::GetHardwareVersion(uint16_t & hardwareVersion) +{ + return CHIP_ERROR_NOT_IMPLEMENTED; +} + +CHIP_ERROR FactoryDataProvider::GetHardwareVersionString(char * buf, size_t bufSize) +{ + ReturnErrorCodeIf(bufSize < sizeof(CHIP_DEVICE_CONFIG_DEFAULT_DEVICE_HARDWARE_VERSION_STRING), CHIP_ERROR_BUFFER_TOO_SMALL); + strcpy(buf, CHIP_DEVICE_CONFIG_DEFAULT_DEVICE_HARDWARE_VERSION_STRING); + return CHIP_NO_ERROR; +} + +CHIP_ERROR FactoryDataProvider::GetRotatingDeviceIdUniqueId(MutableByteSpan & uniqueIdSpan) +{ + ChipError err = CHIP_ERROR_WRONG_KEY_TYPE; +#if CHIP_ENABLE_ROTATING_DEVICE_ID && defined(CHIP_DEVICE_CONFIG_ROTATING_DEVICE_ID_UNIQUE_ID) + static_assert(ConfigurationManager::kRotatingDeviceIDUniqueIDLength >= ConfigurationManager::kMinRotatingDeviceIDUniqueIDLength, + "Length of unique ID for rotating device ID is smaller than minimum."); + constexpr uint8_t uniqueId[] = CHIP_DEVICE_CONFIG_ROTATING_DEVICE_ID_UNIQUE_ID; + + ReturnErrorCodeIf(sizeof(uniqueId) > uniqueIdSpan.size(), CHIP_ERROR_BUFFER_TOO_SMALL); + ReturnErrorCodeIf(sizeof(uniqueId) != ConfigurationManager::kRotatingDeviceIDUniqueIDLength, CHIP_ERROR_BUFFER_TOO_SMALL); + memcpy(uniqueIdSpan.data(), uniqueId, sizeof(uniqueId)); + uniqueIdSpan.reduce_size(sizeof(uniqueId)); + return CHIP_NO_ERROR; +#endif + return err; +} + +} // namespace DeviceLayer +} // namespace chip diff --git a/src/platform/Ameba/FactoryDataProvider.h b/src/platform/Ameba/FactoryDataProvider.h new file mode 100644 index 00000000000000..4700d5475a2583 --- /dev/null +++ b/src/platform/Ameba/FactoryDataProvider.h @@ -0,0 +1,65 @@ +/* + * + * 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. + */ + +#pragma once + +#include +#include +#include + +namespace chip { +namespace DeviceLayer { + +class FactoryDataProvider : public chip::Credentials::DeviceAttestationCredentialsProvider, + public CommissionableDataProvider, + public DeviceInstanceInfoProvider +{ +public: + // ===== Members functions that implement the DeviceAttestationCredentialsProvider + CHIP_ERROR GetCertificationDeclaration(MutableByteSpan & outBuffer) override; + CHIP_ERROR GetFirmwareInformation(MutableByteSpan & out_firmware_info_buffer) override; + CHIP_ERROR GetDeviceAttestationCert(MutableByteSpan & outBuffer) override; + CHIP_ERROR GetProductAttestationIntermediateCert(MutableByteSpan & outBuffer) override; + CHIP_ERROR SignWithDeviceAttestationKey(const ByteSpan & messageToSign, MutableByteSpan & outSignBuffer) override; + + // ===== Members functions that implement the CommissionableDataProvider + CHIP_ERROR GetSetupDiscriminator(uint16_t & setupDiscriminator) override; + CHIP_ERROR SetSetupDiscriminator(uint16_t setupDiscriminator) override; + CHIP_ERROR GetSpake2pIterationCount(uint32_t & iterationCount) override; + CHIP_ERROR GetSpake2pSalt(MutableByteSpan & saltBuf) override; + CHIP_ERROR GetSpake2pVerifier(MutableByteSpan & verifierBuf, size_t & verifierLen) override; + CHIP_ERROR GetSetupPasscode(uint32_t & setupPasscode) override; + CHIP_ERROR SetSetupPasscode(uint32_t setupPasscode) override; + + // ===== Members functions that implement the DeviceInstanceInfoProvider + CHIP_ERROR GetVendorName(char * buf, size_t bufSize) override; + CHIP_ERROR GetVendorId(uint16_t & vendorId) override; + CHIP_ERROR GetProductName(char * buf, size_t bufSize) override; + CHIP_ERROR GetProductId(uint16_t & productId) override; + CHIP_ERROR GetSerialNumber(char * buf, size_t bufSize) override; + CHIP_ERROR GetManufacturingDate(uint16_t & year, uint8_t & month, uint8_t & day) override; + CHIP_ERROR GetHardwareVersion(uint16_t & hardwareVersion) override; + CHIP_ERROR GetHardwareVersionString(char * buf, size_t bufSize) override; + CHIP_ERROR GetRotatingDeviceIdUniqueId(MutableByteSpan & uniqueIdSpan) override; + +private: + static constexpr uint8_t kDACPrivateKeyLength = 32; + static constexpr uint8_t kDACPublicKeyLength = 65; +}; + +} // namespace DeviceLayer +} // namespace chip