diff --git a/include/lib/psa/psa_manifest/sid.h b/include/lib/psa/psa_manifest/sid.h
index 0bdeed4..be78bae 100644
--- a/include/lib/psa/psa_manifest/sid.h
+++ b/include/lib/psa/psa_manifest/sid.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2022, Arm Limited. All rights reserved.
+ * Copyright (c) 2019-2023, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  *
@@ -8,6 +8,9 @@
 #ifndef PSA_MANIFEST_SID_H
 #define PSA_MANIFEST_SID_H
 
+/******** RSS_SP_PLATFORM ********/
+#define RSS_PLATFORM_SERVICE_HANDLE			(0x40000105U)
+
 /******** PSA_SP_MEASURED_BOOT ********/
 #define RSS_MEASURED_BOOT_HANDLE			(0x40000110U)
 
diff --git a/include/lib/psa/rss_platform_api.h b/include/lib/psa/rss_platform_api.h
new file mode 100644
index 0000000..1dd7d05
--- /dev/null
+++ b/include/lib/psa/rss_platform_api.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2023, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef RSS_PLATFORM_API_H
+#define RSS_PLATFORM_API_H
+
+#include <stdint.h>
+
+#include "psa/error.h"
+
+#define RSS_PLATFORM_API_ID_NV_READ       (1010)
+#define RSS_PLATFORM_API_ID_NV_INCREMENT  (1011)
+
+/*
+ * Increments the given non-volatile (NV) counter by one
+ *
+ * counter_id	NV counter ID.
+ *
+ * PSA_SUCCESS if the value is read correctly. Otherwise,
+ *	it returns a PSA_ERROR.
+ */
+psa_status_t
+rss_platform_nv_counter_increment(uint32_t counter_id);
+
+/*
+ * Reads the given non-volatile (NV) counter
+ *
+ * counter_id	NV counter ID.
+ * size		Size of the buffer to store NV counter value
+ *			in bytes.
+ * val		Pointer to store the current NV counter value.
+ *
+ * PSA_SUCCESS if the value is read correctly. Otherwise,
+ *	it returns a PSA_ERROR.
+ */
+psa_status_t
+rss_platform_nv_counter_read(uint32_t counter_id,
+		uint32_t size, uint8_t *val);
+
+#endif /* RSS_PLATFORM_API_H */