1 /** @file
2 Basic TPM command functions.
3
4 Copyright (c) 2005 - 2010, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 **/
14
15 #include "CommonHeader.h"
16
17 /**
18 Single function calculates SHA1 digest value for all raw data. It
19 combines Sha1Init(), Sha1Update() and Sha1Final().
20
21 @param[in] Data Raw data to be digested.
22 @param[in] DataLen Size of the raw data.
23 @param[out] Digest Pointer to a buffer that stores the final digest.
24
25 @retval EFI_SUCCESS Always successfully calculate the final digest.
26 **/
27 EFI_STATUS
28 EFIAPI
TpmCommHashAll(IN CONST UINT8 * Data,IN UINTN DataLen,OUT TPM_DIGEST * Digest)29 TpmCommHashAll (
30 IN CONST UINT8 *Data,
31 IN UINTN DataLen,
32 OUT TPM_DIGEST *Digest
33 )
34 {
35 VOID *Sha1Ctx;
36 UINTN CtxSize;
37
38 CtxSize = Sha1GetContextSize ();
39 Sha1Ctx = AllocatePool (CtxSize);
40 ASSERT (Sha1Ctx != NULL);
41
42 Sha1Init (Sha1Ctx);
43 Sha1Update (Sha1Ctx, Data, DataLen);
44 Sha1Final (Sha1Ctx, (UINT8 *)Digest);
45
46 FreePool (Sha1Ctx);
47
48 return EFI_SUCCESS;
49 }
50
51