diff --git a/features/mbedtls/targets/TARGET_STM/TARGET_STM32WB55xx/mbedtls_device.h b/features/mbedtls/targets/TARGET_STM/TARGET_STM32WB55xx/mbedtls_device.h
new file mode 100644
index 0000000000..985746bc00
--- /dev/null
+++ b/features/mbedtls/targets/TARGET_STM/TARGET_STM32WB55xx/mbedtls_device.h
@@ -0,0 +1,30 @@
+/*
+ *  mbedtls_device.h
+ *******************************************************************************
+ * Copyright (c) 2017, STMicroelectronics
+ *  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.
+ *
+ */
+#ifndef MBEDTLS_DEVICE_H
+#define MBEDTLS_DEVICE_H
+
+#define MBEDTLS_AES_ALT
+// #define MBEDTLS_MD5_ALT    // HASH IP not available for STM32WB
+// #define MBEDTLS_SHA1_ALT   // HASH IP not available for STM32WB
+// #define MBEDTLS_SHA256_ALT // HASH IP not available for STM32WB
+// #define MBEDTLS_CCM_ALT    // not fully supported yet
+// #define MBEDTLS_GCM_ALT    // not fully supported yet
+
+#endif /* MBEDTLS_DEVICE_H */