1 files changed, 127 insertions, 0 deletions
diff --git a/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256Null.c b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256Null.c
new file mode 100644
index 0000000000..48704e1091
--- /dev/null
+++ b/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256Null.c
@@ -0,0 +1,127 @@
+/** @file
+  HMAC-SHA256 Wrapper Implementation which does not provide real capabilities.
+
+Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "InternalCryptLib.h"
+
+/**
+  Retrieves the size, in bytes, of the context buffer required for HMAC-SHA256 operations.
+
+  Return zero to indicate this interface is not supported.
+
+  @retval  0   This interface is not supported.
+
+**/
+UINTN
+EFIAPI
+HmacSha256GetContextSize (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+  return 0;
+}
+
+/**
+  Initializes user-supplied memory pointed by HmacSha256Context as HMAC-SHA256 context for
+  subsequent use.
+
+  Return FALSE to indicate this interface is not supported.
+
+  @param[out]  HmacSha256Context  Pointer to HMAC-SHA256 context being initialized.
+  @param[in]   Key                Pointer to the user-supplied key.
+  @param[in]   KeySize            Key size in bytes.
+
+  @retval FALSE  This interface is not supported.
+
+**/
+BOOLEAN
+EFIAPI
+HmacSha256Init (
+  OUT  VOID         *HmacSha256Context,
+  IN   CONST UINT8  *Key,
+  IN   UINTN        KeySize
+  )
+{
+  ASSERT (FALSE);
+  return FALSE;
+}
+
+/**
+  Makes a copy of an existing HMAC-SHA256 context.
+
+  Return FALSE to indicate this interface is not supported.
+
+  @param[in]  HmacSha256Context     Pointer to HMAC-SHA256 context being copied.
+  @param[out] NewHmacSha256Context  Pointer to new HMAC-SHA256 context.
+
+  @retval FALSE  This interface is not supported.
+
+**/
+BOOLEAN
+EFIAPI
+HmacSha256Duplicate (
+  IN   CONST VOID  *HmacSha256Context,
+  OUT  VOID        *NewHmacSha256Context
+  )
+{
+  ASSERT (FALSE);
+  return FALSE;
+}
+
+/**
+  Digests the input data and updates HMAC-SHA256 context.
+
+  Return FALSE to indicate this interface is not supported.
+
+  @param[in, out]  HmacSha256Context Pointer to the HMAC-SHA256 context.
+  @param[in]       Data              Pointer to the buffer containing the data to be digested.
+  @param[in]       DataSize          Size of Data buffer in bytes.
+
+  @retval FALSE  This interface is not supported.
+
+**/
+BOOLEAN
+EFIAPI
+HmacSha256Update (
+  IN OUT  VOID        *HmacSha256Context,
+  IN      CONST VOID  *Data,
+  IN      UINTN       DataSize
+  )
+{
+  ASSERT (FALSE);
+  return FALSE;
+}
+
+/**
+  Completes computation of the HMAC-SHA256 digest value.
+
+  Return FALSE to indicate this interface is not supported.
+
+  @param[in, out]  HmacSha256Context  Pointer to the HMAC-SHA256 context.
+  @param[out]      HashValue          Pointer to a buffer that receives the HMAC-SHA256 digest
+                                      value (32 bytes).
+
+  @retval FALSE  This interface is not supported.
+
+**/
+BOOLEAN
+EFIAPI
+HmacSha256Final (
+  IN OUT  VOID   *HmacSha256Context,
+  OUT     UINT8  *HmacValue
+  )
+{
+  ASSERT (FALSE);
+  return FALSE;
+}