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Se05x HSM support in thermostat example (#22220)
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* fix - pbkdf integration

* added se05x platform support for thermostat example

* device attest with internal sign working

* code clean up

* updated simw repo commit id

* restyler

* updated api names

* restyler

* deleting tlv objects after use

* updated tlv parsing code

* updated error checks for TLV lengths

* using GetRemainingLength() insted of recomputing the length

* restyler

* using length of TLV after Get() member is called

Co-authored-by: Jagadish-NXP <[email protected]>
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@sujaygkulkarni-nxp @Jagadish-NXP @pull
2 people authored and pull[bot] committed Sep 29, 2023
1 parent de5afac commit 2ec1498
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Showing 20 changed files with 1,029 additions and 31 deletions.
11 changes: 6 additions & 5 deletions examples/platform/nxp/se05x/DeviceAttestationSe05xCredsExample.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -30,8 +30,9 @@

#include <crypto/hsm/nxp/CHIPCryptoPALHsm_SE05X_utils.h>

#define DEV_ATTESTATION_KEY_ID 0xDADADADA
#define DEV_ATTESTATION_CERT_ID 0xDADADADB
/* Device attestation key ids */
#define DEV_ATTESTATION_KEY_SE05X_ID 0x7D300000
#define DEV_ATTESTATION_CERT_SE05X_ID 0x7D300001

extern CHIP_ERROR se05xGetCertificate(uint32_t keyId, uint8_t * buf, size_t * buflen);

Expand All @@ -57,8 +58,8 @@ CHIP_ERROR ExampleSe05xDACProvider::GetDeviceAttestationCert(MutableByteSpan & o
return CopySpanToMutableSpan(DevelopmentCerts::kDacCert, out_dac_buffer);
#else
size_t buflen = out_dac_buffer.size();
ChipLogDetail(Crypto, "Get certificate from se05x");
ReturnErrorOnFailure(se05xGetCertificate(DEV_ATTESTATION_CERT_ID, out_dac_buffer.data(), &buflen));
ChipLogDetail(Crypto, "Get DA certificate from se05x");
ReturnErrorOnFailure(se05xGetCertificate(DEV_ATTESTATION_CERT_SE05X_ID, out_dac_buffer.data(), &buflen));
out_dac_buffer.reduce_size(buflen);
return CHIP_NO_ERROR;
#endif
Expand Down Expand Up @@ -142,7 +143,7 @@ CHIP_ERROR ExampleSe05xDACProvider::SignWithDeviceAttestationKey(const ByteSpan
VerifyOrReturnError(IsSpanUsable(message_to_sign), CHIP_ERROR_INVALID_ARGUMENT);
VerifyOrReturnError(out_signature_buffer.size() >= signature.Capacity(), CHIP_ERROR_BUFFER_TOO_SMALL);

keypair.SetKeyId(DEV_ATTESTATION_KEY_ID);
keypair.SetKeyId(DEV_ATTESTATION_KEY_SE05X_ID);
keypair.provisioned_key = true;
keypair.Initialize();

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1 change: 1 addition & 0 deletions examples/platform/nxp/se05x/DeviceAttestationSe05xCredsExample.h
100644 → 100755
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Expand Up @@ -30,6 +30,7 @@ namespace Examples {
* storage abstractions.
*/
DeviceAttestationCredentialsProvider * GetExampleSe05xDACProvider();
DeviceAttestationCredentialsProvider * GetExampleSe05xDACProviderv2();

} // namespace Examples
} // namespace Credentials
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298 changes: 298 additions & 0 deletions examples/platform/nxp/se05x/DeviceAttestationSe05xCredsExample_v2.cpp
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@@ -0,0 +1,298 @@
/*
*
* Copyright (c) 2021 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 "DeviceAttestationSe05xCredsExample.h"

#include <credentials/examples/ExampleDACs.h>
#include <credentials/examples/ExamplePAI.h>
#include <crypto/CHIPCryptoPAL.h>
#include <lib/core/CHIPError.h>
#include <lib/core/CHIPTLV.h>
#include <lib/core/CHIPTLVTags.h>
#include <lib/core/CHIPTLVTypes.h>
#include <lib/core/CHIPTLVUtilities.hpp>
#include <lib/support/Span.h>

#if CHIP_CRYPTO_HSM
#include <crypto/hsm/CHIPCryptoPALHsm.h>
#endif

#ifdef ENABLE_HSM_DEVICE_ATTESTATION

#include <crypto/hsm/nxp/CHIPCryptoPALHsm_SE05X_utils.h>

/* Device attestation key ids */
#define DEV_ATTESTATION_KEY_SE05X_ID 0x7D300000
#define DEV_ATTESTATION_CERT_SE05X_ID 0x7D300001

/* Device attestation key ids (Used with internal sign) */
#define CD_DEV_ATTESTATION_KEY_SE05X_ID 0x7D300002
#define NOCSR_DEV_ATTESTATION_KEY_SE05X_ID 0x7D300004

/* Device attestation data ids (for Cert decl) */
#define CD_CERT_DECLARATION_DATA_SE05X_ID 0x7D300009
#define CD_ATTEST_NONCE_DATA_SE05X_ID 0x7D30000C
#define CD_TIME_STAMP_LEN_SE05X_ID 0x7D30000E
#define CD_TIME_STAMP_DATA_SE05X_ID 0x7D30000F
#define CD_ATTEST_CHALLENGE_SE05X_ID 0x7D300011

/* Device attestation data ids (for CSR) */
#define NOCSR_CSR_LEN_SE05X_ID 0x7D300014
#define NOCSR_CSR_DATA_SE05X_ID 0x7D300015
#define NOCSR_CSR_NONCE_DATA_SE05X_ID 0x7D300018
#define NOCSR_ATTEST_CHALLENGE_SE05X_ID 0x7D30001A

extern CHIP_ERROR se05xGetCertificate(uint32_t keyId, uint8_t * buf, size_t * buflen);
extern CHIP_ERROR se05xSetCertificate(uint32_t keyId, const uint8_t * buf, size_t buflen);
extern CHIP_ERROR se05xPerformInternalSign(uint32_t keyId, uint8_t * sigBuf, size_t * sigBufLen);
extern void se05x_delete_key(uint32_t keyid);

namespace chip {
namespace Credentials {
namespace Examples {

namespace {

class ExampleSe05xDACProviderv2 : public DeviceAttestationCredentialsProvider
{
public:
CHIP_ERROR GetCertificationDeclaration(MutableByteSpan & out_cd_buffer) override;
CHIP_ERROR GetFirmwareInformation(MutableByteSpan & out_firmware_info_buffer) override;
CHIP_ERROR GetDeviceAttestationCert(MutableByteSpan & out_dac_buffer) override;
CHIP_ERROR GetProductAttestationIntermediateCert(MutableByteSpan & out_pai_buffer) override;
CHIP_ERROR SignWithDeviceAttestationKey(const ByteSpan & message_to_sign, MutableByteSpan & out_signature_buffer) override;
};

CHIP_ERROR ExampleSe05xDACProviderv2::GetDeviceAttestationCert(MutableByteSpan & out_dac_buffer)
{
#if 0
return CopySpanToMutableSpan(DevelopmentCerts::kDacCert, out_dac_buffer);
#else
size_t buflen = out_dac_buffer.size();
ChipLogDetail(Crypto, "Get DA certificate from se05x");
ReturnErrorOnFailure(se05xGetCertificate(DEV_ATTESTATION_CERT_SE05X_ID, out_dac_buffer.data(), &buflen));
out_dac_buffer.reduce_size(buflen);
return CHIP_NO_ERROR;
#endif
}

CHIP_ERROR ExampleSe05xDACProviderv2::GetProductAttestationIntermediateCert(MutableByteSpan & out_pai_buffer)
{
return CopySpanToMutableSpan(ByteSpan(DevelopmentCerts::kPaiCert), out_pai_buffer);
}

CHIP_ERROR ExampleSe05xDACProviderv2::GetCertificationDeclaration(MutableByteSpan & out_cd_buffer)
{
//-> 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
#if 0
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 }, out_cd_buffer);

#else
size_t buflen = out_cd_buffer.size();
ChipLogDetail(Crypto, "Get certificate declaration from se05x");
ReturnErrorOnFailure(se05xGetCertificate(CD_CERT_DECLARATION_DATA_SE05X_ID, out_cd_buffer.data(), &buflen));
out_cd_buffer.reduce_size(buflen);
return CHIP_NO_ERROR;
#endif
}

CHIP_ERROR ExampleSe05xDACProviderv2::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 ExampleSe05xDACProviderv2::SignWithDeviceAttestationKey(const ByteSpan & message_to_sign,
MutableByteSpan & out_signature_buffer)
{
CHIP_ERROR err = CHIP_NO_ERROR;
VerifyOrReturnError(IsSpanUsable(out_signature_buffer), CHIP_ERROR_INVALID_ARGUMENT);
VerifyOrReturnError(IsSpanUsable(message_to_sign), CHIP_ERROR_INVALID_ARGUMENT);

ChipLogDetail(Crypto, "Sign using DA key from se05x (Using internal sign)");

TLV::TLVReader msg_reader;
TLV::TLVReader tagReader;

msg_reader.Init(message_to_sign);

/* To be removed. Use common key id to sign message */
static bool sign_cert_decl_attest = 1;

if (sign_cert_decl_attest)
{
/* Check if certificate declaration tag is present and Skip certificate declaration tag */
ReturnErrorOnFailure(TLV::Utilities::Find(msg_reader, TLV::ContextTag(1), tagReader));

ReturnErrorOnFailure(TLV::Utilities::Find(msg_reader, TLV::ContextTag(2), tagReader));
uint8_t attlen = tagReader.GetLength();
VerifyOrReturnError(attlen > 0, CHIP_ERROR_INVALID_TLV_TAG);
/* Get attestation nonce */
ByteSpan attest_nonce;
ReturnErrorOnFailure(tagReader.Get(attest_nonce));
/* Set attestation nonce */
VerifyOrReturnError(CHIP_NO_ERROR ==
se05xSetCertificate(CD_ATTEST_NONCE_DATA_SE05X_ID, attest_nonce.data(), attest_nonce.size()),
CHIP_ERROR_INTERNAL);

ReturnErrorOnFailure(TLV::Utilities::Find(msg_reader, TLV::ContextTag(3), tagReader));
uint8_t tslen = tagReader.GetLength();
if (tslen > 0)
{
ByteSpan time_stamp;
ReturnErrorOnFailure(tagReader.Get(time_stamp));
/* Set time stamp data */
VerifyOrReturnError(CHIP_NO_ERROR ==
se05xSetCertificate(CD_TIME_STAMP_DATA_SE05X_ID, time_stamp.data(), time_stamp.size()),
CHIP_ERROR_INTERNAL);
}
/* Set time stamp length */
VerifyOrReturnError(CHIP_NO_ERROR == se05xSetCertificate(CD_TIME_STAMP_LEN_SE05X_ID, &tslen, 1), CHIP_ERROR_INTERNAL);

if ((tagReader.GetRemainingLength() + 1 /* End container */) >= 16)
{
/* Set attestation challenge */
VerifyOrReturnError(CHIP_NO_ERROR ==
se05xSetCertificate(CD_ATTEST_CHALLENGE_SE05X_ID, (message_to_sign.end() - 16), 16),
CHIP_ERROR_INTERNAL);
}
}
else
{
ReturnErrorOnFailure(TLV::Utilities::Find(msg_reader, TLV::ContextTag(1), tagReader));
uint8_t csrlen = tagReader.GetLength();
VerifyOrReturnError(csrlen > 0, CHIP_ERROR_INVALID_TLV_TAG);
ByteSpan csr_data;
/* Get nocsr */
ReturnErrorOnFailure(tagReader.Get(csr_data));
/* Set nocsr length */
VerifyOrReturnError(CHIP_NO_ERROR == se05xSetCertificate(NOCSR_CSR_LEN_SE05X_ID, &csrlen, 1), CHIP_ERROR_INTERNAL);
/* Set nocsr data */
se05x_delete_key(NOCSR_CSR_DATA_SE05X_ID);
VerifyOrReturnError(CHIP_NO_ERROR == se05xSetCertificate(NOCSR_CSR_DATA_SE05X_ID, csr_data.data(), csr_data.size()),
CHIP_ERROR_INTERNAL);

ReturnErrorOnFailure(TLV::Utilities::Find(msg_reader, TLV::ContextTag(2), tagReader));
uint8_t noncelen = tagReader.GetLength();
VerifyOrReturnError(noncelen > 0, CHIP_ERROR_INVALID_TLV_TAG);
/* Get nocsr nonce */
ByteSpan nocsr_nonce;
ReturnErrorOnFailure(tagReader.Get(nocsr_nonce));
/* Set nocsr nonce data */
VerifyOrReturnError(CHIP_NO_ERROR ==
se05xSetCertificate(NOCSR_CSR_NONCE_DATA_SE05X_ID, nocsr_nonce.data(), nocsr_nonce.size()),
CHIP_ERROR_INTERNAL);

if ((tagReader.GetRemainingLength() + 1 /* End container */) >= 16)
{
/* Set attestation challenge */
VerifyOrReturnError(CHIP_NO_ERROR ==
se05xSetCertificate(NOCSR_ATTEST_CHALLENGE_SE05X_ID, (message_to_sign.end() - 16), 16),
CHIP_ERROR_INTERNAL);
}
}

uint8_t signature_se05x[Crypto::kMax_ECDSA_Signature_Length_Der] = { 0 };
size_t signature_se05x_len = sizeof(signature_se05x);

if (sign_cert_decl_attest)
{
err = se05xPerformInternalSign(CD_DEV_ATTESTATION_KEY_SE05X_ID, signature_se05x, &signature_se05x_len);
se05x_delete_key(CD_ATTEST_NONCE_DATA_SE05X_ID);
se05x_delete_key(CD_TIME_STAMP_LEN_SE05X_ID);
se05x_delete_key(CD_TIME_STAMP_DATA_SE05X_ID);
se05x_delete_key(CD_ATTEST_CHALLENGE_SE05X_ID);
sign_cert_decl_attest = 0;
}
else
{
err = se05xPerformInternalSign(NOCSR_DEV_ATTESTATION_KEY_SE05X_ID, signature_se05x, &signature_se05x_len);
se05x_delete_key(NOCSR_CSR_LEN_SE05X_ID);
se05x_delete_key(NOCSR_CSR_DATA_SE05X_ID);
se05x_delete_key(NOCSR_CSR_NONCE_DATA_SE05X_ID);
se05x_delete_key(NOCSR_ATTEST_CHALLENGE_SE05X_ID);
sign_cert_decl_attest = 1;
}

ReturnErrorOnFailure(err);

return chip::Crypto::EcdsaAsn1SignatureToRaw(chip::Crypto::kP256_FE_Length, ByteSpan{ signature_se05x, signature_se05x_len },
out_signature_buffer);
}

} // namespace

DeviceAttestationCredentialsProvider * GetExampleSe05xDACProviderv2()
{
static ExampleSe05xDACProviderv2 example_dac_provider;

return &example_dac_provider;
}

} // namespace Examples
} // namespace Credentials
} // namespace chip

#endif //#ifdef ENABLE_HSM_DEVICE_ATTESTATION
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