diff --git a/services/implementation/include/attest/dm_auth_attest_common.h b/services/implementation/include/attest/dm_auth_attest_common.h
new file mode 100644
index 0000000000000000000000000000000000000000..67224444af1cb7f3634fd9e8242fbd9b4b372eb9
--- /dev/null
+++ b/services/implementation/include/attest/dm_auth_attest_common.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+#ifndef OHOS_DM_AUTH_ATTEST_COMMON_H
+#define OHOS_DM_AUTH_ATTEST_COMMON_H
+
+#define DM_CERTS_COUNT 4
+
+#include <stdint.h>
+
+typedef struct DmBlob {
+    uint32_t size;
+    uint8_t *data;
+} DmBlob;
+
+typedef struct DmCertChain {
+    DmBlob cert[DM_CERTS_COUNT];
+    uint32_t certCount;
+} DmCertChain;
+
+namespace OHOS {
+namespace DistributedHardware {
+
+}  // namespace DistributedHardware
+}  // namespace OHOS
+#endif  // OHOS_DM_AUTH_ATTEST_COMMON_H
\ No newline at end of file
diff --git a/services/implementation/include/attest/dm_auth_generate_attest.h b/services/implementation/include/attest/dm_auth_generate_attest.h
new file mode 100644
index 0000000000000000000000000000000000000000..89a0d2dc00bef440c945b6aad542988fc2639388
--- /dev/null
+++ b/services/implementation/include/attest/dm_auth_generate_attest.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+#ifndef OHOS_DM_AUTH_GENERATE_ATTEST_H
+#define OHOS_DM_AUTH_GENERATE_ATTEST_H
+
+#include "dm_auth_attest_common.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+class AuthGenerateAttest {
+    int32_t GenerateCertificate(DmCertChain dmCertChain);
+    int32_t InitDmChain();
+    void FreeDmChain();
+};
+}  // namespace DistributedHardware
+}  // namespace OHOS
+#endif  // OHOS_DM_AUTH_GENERATE_ATTEST_H
\ No newline at end of file
diff --git a/services/implementation/include/attest/dm_auth_validate_attest.h b/services/implementation/include/attest/dm_auth_validate_attest.h
new file mode 100644
index 0000000000000000000000000000000000000000..3f22cadb6dc02f594828b8c28578a6d6fbca1cae
--- /dev/null
+++ b/services/implementation/include/attest/dm_auth_validate_attest.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+#ifndef OHOS_DM_AUTH_VALIDATE_ATTEST_H
+#define OHOS_DM_AUTH_VALIDATE_ATTEST_H
+
+#include "dm_auth_attest_common.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+class AuthValidateAttest {
+    int32_t VerifyCertificate();
+    void FreeDmChain();
+};
+}  // namespace DistributedHardware
+}  // namespace OHOS
+#endif  // OHOS_DM_AUTH_VALIDATE_ATTEST_H
\ No newline at end of file
diff --git a/services/implementation/src/attest/dm_auth_generate_attest.cpp b/services/implementation/src/attest/dm_auth_generate_attest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..670d19f852ba547baeb46e938b300a4c7ff3bd21
--- /dev/null
+++ b/services/implementation/src/attest/dm_auth_generate_attest.cpp
@@ -0,0 +1,22 @@
+/*
+* Copyright (c) 2025 Huawei Device Co., Ltd.
+* 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 "dm_auth_generate_attest.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+} // namespace DistributedHardware
+} // namespace OHOS
+ 
\ No newline at end of file
diff --git a/services/implementation/src/attest/dm_auth_validate_attest.cpp b/services/implementation/src/attest/dm_auth_validate_attest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..8b137891791fe96927ad78e64b0aad7bded08bdc
--- /dev/null
+++ b/services/implementation/src/attest/dm_auth_validate_attest.cpp
@@ -0,0 +1 @@
+