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1 | /** @file |
2 | This library is BaseCrypto SHA384 hash instance. | |
3 | It can be registered to BaseCrypto router, to serve as hash engine. | |
4 | ||
5 | Copyright (c) 2018, Intel Corporation. All rights reserved. <BR> | |
6 | This program and the accompanying materials | |
7 | are licensed and made available under the terms and conditions of the BSD License | |
8 | which accompanies this distribution. The full text of the license may be found at | |
9 | http://opensource.org/licenses/bsd-license.php | |
10 | ||
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
13 | ||
14 | **/ | |
15 | ||
16 | #include <PiPei.h> | |
17 | ||
18 | #include <Library/BaseLib.h> | |
19 | #include <Library/BaseMemoryLib.h> | |
20 | #include <Library/DebugLib.h> | |
21 | #include <Library/BaseCryptLib.h> | |
22 | #include <Library/MemoryAllocationLib.h> | |
23 | #include <Library/HashLib.h> | |
24 | ||
25 | /** | |
26 | The function set SHA384 to digest list. | |
27 | ||
28 | @param DigestList digest list | |
29 | @param Sha384Digest SHA384 digest | |
30 | **/ | |
31 | VOID | |
32 | Tpm2SetSha384ToDigestList ( | |
33 | IN TPML_DIGEST_VALUES *DigestList, | |
34 | IN UINT8 *Sha384Digest | |
35 | ) | |
36 | { | |
37 | DigestList->count = 1; | |
38 | DigestList->digests[0].hashAlg = TPM_ALG_SHA384; | |
39 | CopyMem ( | |
40 | DigestList->digests[0].digest.sha384, | |
41 | Sha384Digest, | |
42 | SHA384_DIGEST_SIZE | |
43 | ); | |
44 | } | |
45 | ||
46 | /** | |
47 | Start hash sequence. | |
48 | ||
49 | @param HashHandle Hash handle. | |
50 | ||
51 | @retval EFI_SUCCESS Hash sequence start and HandleHandle returned. | |
52 | @retval EFI_OUT_OF_RESOURCES No enough resource to start hash. | |
53 | **/ | |
54 | EFI_STATUS | |
55 | EFIAPI | |
56 | Sha384HashInit ( | |
57 | OUT HASH_HANDLE *HashHandle | |
58 | ) | |
59 | { | |
60 | VOID *Sha384Ctx; | |
61 | UINTN CtxSize; | |
62 | ||
63 | CtxSize = Sha384GetContextSize (); | |
64 | Sha384Ctx = AllocatePool (CtxSize); | |
65 | ASSERT (Sha384Ctx != NULL); | |
66 | ||
67 | Sha384Init (Sha384Ctx); | |
68 | ||
69 | *HashHandle = (HASH_HANDLE)Sha384Ctx; | |
70 | ||
71 | return EFI_SUCCESS; | |
72 | } | |
73 | ||
74 | /** | |
75 | Update hash sequence data. | |
76 | ||
77 | @param HashHandle Hash handle. | |
78 | @param DataToHash Data to be hashed. | |
79 | @param DataToHashLen Data size. | |
80 | ||
81 | @retval EFI_SUCCESS Hash sequence updated. | |
82 | **/ | |
83 | EFI_STATUS | |
84 | EFIAPI | |
85 | Sha384HashUpdate ( | |
86 | IN HASH_HANDLE HashHandle, | |
87 | IN VOID *DataToHash, | |
88 | IN UINTN DataToHashLen | |
89 | ) | |
90 | { | |
91 | VOID *Sha384Ctx; | |
92 | ||
93 | Sha384Ctx = (VOID *)HashHandle; | |
94 | Sha384Update (Sha384Ctx, DataToHash, DataToHashLen); | |
95 | ||
96 | return EFI_SUCCESS; | |
97 | } | |
98 | ||
99 | /** | |
100 | Complete hash sequence complete. | |
101 | ||
102 | @param HashHandle Hash handle. | |
103 | @param DigestList Digest list. | |
104 | ||
105 | @retval EFI_SUCCESS Hash sequence complete and DigestList is returned. | |
106 | **/ | |
107 | EFI_STATUS | |
108 | EFIAPI | |
109 | Sha384HashFinal ( | |
110 | IN HASH_HANDLE HashHandle, | |
111 | OUT TPML_DIGEST_VALUES *DigestList | |
112 | ) | |
113 | { | |
114 | UINT8 Digest[SHA384_DIGEST_SIZE]; | |
115 | VOID *Sha384Ctx; | |
116 | ||
117 | Sha384Ctx = (VOID *)HashHandle; | |
118 | Sha384Final (Sha384Ctx, Digest); | |
119 | ||
120 | FreePool (Sha384Ctx); | |
121 | ||
122 | Tpm2SetSha384ToDigestList (DigestList, Digest); | |
123 | ||
124 | return EFI_SUCCESS; | |
125 | } | |
126 | ||
127 | HASH_INTERFACE mSha384InternalHashInstance = { | |
128 | HASH_ALGORITHM_SHA384_GUID, | |
129 | Sha384HashInit, | |
130 | Sha384HashUpdate, | |
131 | Sha384HashFinal, | |
132 | }; | |
133 | ||
134 | /** | |
135 | The function register SHA384 instance. | |
136 | ||
137 | @retval EFI_SUCCESS SHA384 instance is registered, or system dose not surpport registr SHA384 instance | |
138 | **/ | |
139 | EFI_STATUS | |
140 | EFIAPI | |
141 | HashInstanceLibSha384Constructor ( | |
142 | VOID | |
143 | ) | |
144 | { | |
145 | EFI_STATUS Status; | |
146 | ||
147 | Status = RegisterHashInterfaceLib (&mSha384InternalHashInstance); | |
148 | if ((Status == EFI_SUCCESS) || (Status == EFI_UNSUPPORTED)) { | |
149 | // | |
150 | // Unsupported means platform policy does not need this instance enabled. | |
151 | // | |
152 | return EFI_SUCCESS; | |
153 | } | |
154 | return Status; | |
155 | } |