diff --git a/library/internal_trusted_storage.h b/library/psa_crypto_its.h
similarity index 81%
rename from library/internal_trusted_storage.h
rename to library/psa_crypto_its.h
index 4b117e7..44d5198 100644
--- a/library/internal_trusted_storage.h
+++ b/library/psa_crypto_its.h
@@ -1,3 +1,6 @@
+/** \file psa_crypto_its.h
+ * \brief Interface of trusted storage that crypto is built on.
+ */
 /*  Copyright (C) 2019, ARM Limited, All Rights Reserved
  *  SPDX-License-Identifier: Apache-2.0
  *
@@ -13,22 +16,48 @@
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
  */
-/** @file
-@brief This file describes the PSA Internal Trusted Storage API
-*/
 
-#ifndef __PSA_INTERNAL_TRUSTED_STORAGE_H__
-#define __PSA_INTERNAL_TRUSTED_STORAGE_H__
+#ifndef PSA_CRYPTO_ITS_H
+#define PSA_CRYPTO_ITS_H
 
 #include <stddef.h>
 #include <stdint.h>
 
-#include "psa/error.h"
-#include "psa/storage_common.h"
+#include <psa/crypto_types.h>
+#include <psa/crypto_values.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
+
+/** \brief Flags used when creating a data entry
+ */
+typedef uint32_t psa_storage_create_flags_t;
+
+/** \brief A type for UIDs used for identifying data
+ */
+typedef uint64_t psa_storage_uid_t;
+
+#define PSA_STORAGE_FLAG_NONE        0         /**< No flags to pass */
+#define PSA_STORAGE_FLAG_WRITE_ONCE (1 << 0) /**< The data associated with the uid will not be able to be modified or deleted. Intended to be used to set bits in `psa_storage_create_flags_t`*/
+
+/**
+ * \brief A container for metadata associated with a specific uid
+ */
+struct psa_storage_info_t
+{
+    uint32_t size;                  /**< The size of the data associated with a uid **/
+    psa_storage_create_flags_t flags;    /**< The flags set when the uid was created **/
+};
+
+/** Flag indicating that \ref psa_storage_create and \ref psa_storage_set_extended are supported */
+#define PSA_STORAGE_SUPPORT_SET_EXTENDED (1 << 0)
+
+/** \brief PSA storage specific error codes
+ */
+#define PSA_ERROR_INVALID_SIGNATURE     ((psa_status_t)-149)
+#define PSA_ERROR_DATA_CORRUPT          ((psa_status_t)-152)
+
 #define PSA_ITS_API_VERSION_MAJOR  1  /**< The major version number of the PSA ITS API. It will be incremented on significant updates that may include breaking changes */
 #define PSA_ITS_API_VERSION_MINOR  1  /**< The minor version number of the PSA ITS API. It will be incremented in small updates that are unlikely to include breaking changes */
 
@@ -39,9 +68,9 @@
  * \param[in] data_length   The size in bytes of the data in `p_data`
  * \param[in] p_data        A buffer containing the data
  * \param[in] create_flags  The flags that the data will be stored with
- * 
+ *
  * \return      A status indicating the success/failure of the operation
- 
+ *
  * \retval      PSA_SUCCESS                      The operation completed successfully
  * \retval      PSA_ERROR_NOT_PERMITTED          The operation failed because the provided `uid` value was already created with PSA_STORAGE_WRITE_ONCE_FLAG
  * \retval      PSA_ERROR_NOT_SUPPORTED          The operation failed because one or more of the flags provided in `create_flags` is not supported or is not valid
@@ -62,8 +91,8 @@
  * \param[in] data_offset       The starting offset of the data requested
  * \param[in] data_length       the amount of data requested (and the minimum allocated size of the `p_data` buffer)
  * \param[out] p_data           The buffer where the data will be placed upon successful completion
- 
- * 
+ *
+ *
  * \return      A status indicating the success/failure of the operation
  *
  * \retval      PSA_SUCCESS                  The operation completed successfully
@@ -81,12 +110,12 @@
 
 /**
  * \brief Retrieve the metadata about the provided uid
- * 
+ *
  * \param[in] uid           The uid value
  * \param[out] p_info       A pointer to the `psa_storage_info_t` struct that will be populated with the metadata
- * 
+ *
  * \return      A status indicating the success/failure of the operation
- * 
+ *
  * \retval      PSA_SUCCESS                  The operation completed successfully
  * \retval      PSA_ERROR_DOES_NOT_EXIST     The operation failed because the provided uid value was not found in the storage
  * \retval      PSA_ERROR_STORAGE_FAILURE    The operation failed because the physical storage has failed (Fatal error)
@@ -98,11 +127,11 @@
 
 /**
  * \brief Remove the provided key and its associated data from the storage
- * 
+ *
  * \param[in] uid   The uid value
- * 
+ *
  * \return  A status indicating the success/failure of the operation
- * 
+ *
  * \retval      PSA_SUCCESS                  The operation completed successfully
  * \retval      PSA_ERROR_DOES_NOT_EXIST     The operation failed because the provided key value was not found in the storage
  * \retval      PSA_ERROR_NOT_PERMITTED      The operation failed because the provided key value was created with PSA_STORAGE_WRITE_ONCE_FLAG
@@ -110,8 +139,4 @@
  */
 psa_status_t psa_its_remove(psa_storage_uid_t uid);
 
-#ifdef __cplusplus
-}
-#endif
-
-#endif // __PSA_INTERNAL_TRUSTED_STORAGE_H__
+#endif /* PSA_CRYPTO_ITS_H */
diff --git a/library/storage_common.h b/library/storage_common.h
deleted file mode 100644
index 07cb6e9..0000000
--- a/library/storage_common.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*  Copyright (C) 2019, ARM Limited, All Rights Reserved
- *  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.
- */
-
-/** @file
-@brief This file includes common definitions for PSA storage
-*/
-
-#ifndef __PSA_STORAGE_COMMON_H__
-#define __PSA_STORAGE_COMMON_H__
-
-#include <stddef.h>
-#include <stdint.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** \brief Flags used when creating a data entry
- */
-typedef uint32_t psa_storage_create_flags_t;
-
-/** \brief A type for UIDs used for identifying data
- */
-typedef uint64_t psa_storage_uid_t;
-
-#define PSA_STORAGE_FLAG_NONE        0         /**< No flags to pass */
-#define PSA_STORAGE_FLAG_WRITE_ONCE (1 << 0) /**< The data associated with the uid will not be able to be modified or deleted. Intended to be used to set bits in `psa_storage_create_flags_t`*/
-
-/**
- * \brief A container for metadata associated with a specific uid
- */
-struct psa_storage_info_t {
-    uint32_t size;                  /**< The size of the data associated with a uid **/
-    psa_storage_create_flags_t flags;    /**< The flags set when the uid was created **/
-};
-
-/** Flag indicating that \ref psa_storage_create and \ref psa_storage_set_extended are supported */
-#define PSA_STORAGE_SUPPORT_SET_EXTENDED (1 << 0)
-
-/** \brief PSA storage specific error codes
- */
-#define PSA_ERROR_INVALID_SIGNATURE     ((psa_status_t)-149)
-#define PSA_ERROR_DATA_CORRUPT          ((psa_status_t)-152)
-
-#endif // __PSA_STORAGE_COMMON_H__
diff --git a/visualc/VS2010/mbedTLS.vcxproj b/visualc/VS2010/mbedTLS.vcxproj
index bb92d8f..aa48c16 100644
--- a/visualc/VS2010/mbedTLS.vcxproj
+++ b/visualc/VS2010/mbedTLS.vcxproj
@@ -238,6 +238,7 @@
     <ClInclude Include="..\..\include\psa\crypto_values.h" />
     <ClInclude Include="..\..\library/psa_crypto_core.h" />
     <ClInclude Include="..\..\library/psa_crypto_invasive.h" />
+    <ClInclude Include="..\..\library/psa_crypto_its.h" />
     <ClInclude Include="..\..\library/psa_crypto_service_integration.h" />
     <ClInclude Include="..\..\library/psa_crypto_slot_management.h" />
     <ClInclude Include="..\..\library/psa_crypto_storage.h" />