1 files changed, 27 insertions, 0 deletions
diff --git a/MdePkg/Include/Ppi/Rng.h b/MdePkg/Include/Ppi/Rng.h
new file mode 100644
index 0000000000..93f45c1ada
--- /dev/null
+++ b/MdePkg/Include/Ppi/Rng.h
@@ -0,0 +1,27 @@
+/** @file
+  The Random Number Generator (RNG) PPI is used to provide random bits for use
+  in PEIMs, or entropy for seeding other random number generators. The PPI was
+  introduced in the PI 1.9 Specification.
+
+  Copyright (c) Microsoft Corporation.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef RNG_PPI_H_
+#define RNG_PPI_H_
+
+#include <Guid/Rng.h>
+
+///
+/// Global ID for the Random Number Generator PPI
+///
+#define RNG_PPI_GUID \
+  { \
+    0xeaed0a7e, 0x1a70, 0x4c2b, { 0x85, 0x58, 0x37, 0x17, 0x74, 0x56, 0xd8, 0x06 } \
+  }
+
+typedef EFI_RNG_INTERFACE RNG_PPI;
+
+extern EFI_GUID  gEfiRngPpiGuid;
+
+#endif