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3a347533 ZC |
1 | /** @file\r |
2 | This library is BaseCrypto SHA512 hash instance.\r | |
3 | It can be registered to BaseCrypto router, to serve as hash engine.\r | |
4 | \r | |
5 | Copyright (c) 2018, Intel Corporation. All rights reserved. <BR>\r | |
289b714b | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
3a347533 ZC |
7 | \r |
8 | **/\r | |
9 | \r | |
10 | #include <PiPei.h>\r | |
11 | #include <Library/BaseLib.h>\r | |
12 | #include <Library/BaseMemoryLib.h>\r | |
13 | #include <Library/DebugLib.h>\r | |
14 | #include <Library/BaseCryptLib.h>\r | |
15 | #include <Library/MemoryAllocationLib.h>\r | |
16 | #include <Library/HashLib.h>\r | |
17 | \r | |
18 | /**\r | |
19 | The function set SHA512 to digest list.\r | |
20 | \r | |
21 | @param DigestList digest list\r | |
22 | @param Sha512Digest SHA512 digest\r | |
23 | **/\r | |
24 | VOID\r | |
25 | Tpm2SetSha512ToDigestList (\r | |
26 | IN TPML_DIGEST_VALUES *DigestList,\r | |
27 | IN UINT8 *Sha512Digest\r | |
28 | )\r | |
29 | {\r | |
30 | DigestList->count = 1;\r | |
31 | DigestList->digests[0].hashAlg = TPM_ALG_SHA512;\r | |
32 | CopyMem (\r | |
33 | DigestList->digests[0].digest.sha512,\r | |
34 | Sha512Digest,\r | |
35 | SHA512_DIGEST_SIZE\r | |
36 | );\r | |
37 | }\r | |
38 | \r | |
39 | /**\r | |
40 | Start hash sequence.\r | |
41 | \r | |
42 | @param HashHandle Hash handle.\r | |
43 | \r | |
44 | @retval EFI_SUCCESS Hash sequence start and HandleHandle returned.\r | |
45 | @retval EFI_OUT_OF_RESOURCES No enough resource to start hash.\r | |
46 | **/\r | |
47 | EFI_STATUS\r | |
48 | EFIAPI\r | |
49 | Sha512HashInit (\r | |
50 | OUT HASH_HANDLE *HashHandle\r | |
51 | )\r | |
52 | {\r | |
53 | VOID *Sha512Ctx;\r | |
54 | UINTN CtxSize;\r | |
55 | \r | |
56 | CtxSize = Sha512GetContextSize ();\r | |
57 | Sha512Ctx = AllocatePool (CtxSize);\r | |
58 | ASSERT (Sha512Ctx != NULL);\r | |
59 | \r | |
60 | Sha512Init (Sha512Ctx);\r | |
61 | \r | |
62 | *HashHandle = (HASH_HANDLE)Sha512Ctx;\r | |
63 | \r | |
64 | return EFI_SUCCESS;\r | |
65 | }\r | |
66 | \r | |
67 | /**\r | |
68 | Update hash sequence data.\r | |
69 | \r | |
70 | @param HashHandle Hash handle.\r | |
71 | @param DataToHash Data to be hashed.\r | |
72 | @param DataToHashLen Data size.\r | |
73 | \r | |
74 | @retval EFI_SUCCESS Hash sequence updated.\r | |
75 | **/\r | |
76 | EFI_STATUS\r | |
77 | EFIAPI\r | |
78 | Sha512HashUpdate (\r | |
79 | IN HASH_HANDLE HashHandle,\r | |
80 | IN VOID *DataToHash,\r | |
81 | IN UINTN DataToHashLen\r | |
82 | )\r | |
83 | {\r | |
84 | VOID *Sha512Ctx;\r | |
85 | \r | |
86 | Sha512Ctx = (VOID *)HashHandle;\r | |
87 | Sha512Update (Sha512Ctx, DataToHash, DataToHashLen);\r | |
88 | \r | |
89 | return EFI_SUCCESS;\r | |
90 | }\r | |
91 | \r | |
92 | /**\r | |
93 | Complete hash sequence complete.\r | |
94 | \r | |
95 | @param HashHandle Hash handle.\r | |
96 | @param DigestList Digest list.\r | |
97 | \r | |
98 | @retval EFI_SUCCESS Hash sequence complete and DigestList is returned.\r | |
99 | **/\r | |
100 | EFI_STATUS\r | |
101 | EFIAPI\r | |
102 | Sha512HashFinal (\r | |
103 | IN HASH_HANDLE HashHandle,\r | |
104 | OUT TPML_DIGEST_VALUES *DigestList\r | |
105 | )\r | |
106 | {\r | |
107 | UINT8 Digest[SHA512_DIGEST_SIZE];\r | |
108 | VOID *Sha512Ctx;\r | |
109 | \r | |
110 | Sha512Ctx = (VOID *)HashHandle;\r | |
111 | Sha512Final (Sha512Ctx, Digest);\r | |
112 | \r | |
113 | FreePool (Sha512Ctx);\r | |
114 | \r | |
115 | Tpm2SetSha512ToDigestList (DigestList, Digest);\r | |
116 | \r | |
117 | return EFI_SUCCESS;\r | |
118 | }\r | |
119 | \r | |
120 | HASH_INTERFACE mSha512InternalHashInstance = {\r | |
121 | HASH_ALGORITHM_SHA512_GUID,\r | |
122 | Sha512HashInit,\r | |
123 | Sha512HashUpdate,\r | |
124 | Sha512HashFinal,\r | |
125 | };\r | |
126 | \r | |
127 | /**\r | |
128 | The function register SHA512 instance.\r | |
129 | \r | |
130 | @retval EFI_SUCCESS SHA512 instance is registered, or system dose not surpport registr SHA512 instance\r | |
131 | **/\r | |
132 | EFI_STATUS\r | |
133 | EFIAPI\r | |
134 | HashInstanceLibSha512Constructor (\r | |
135 | VOID\r | |
136 | )\r | |
137 | {\r | |
138 | EFI_STATUS Status;\r | |
139 | \r | |
140 | Status = RegisterHashInterfaceLib (&mSha512InternalHashInstance);\r | |
141 | if ((Status == EFI_SUCCESS) || (Status == EFI_UNSUPPORTED)) {\r | |
142 | //\r | |
143 | // Unsupported means platform policy does not need this instance enabled.\r | |
144 | //\r | |
145 | return EFI_SUCCESS;\r | |
146 | }\r | |
147 | return Status;\r | |
148 | }\r |