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1 | /** @file\r | |
2 | Unified Hash API Implementation\r | |
3 | \r | |
4 | This file implements the Unified Hash API.\r | |
5 | \r | |
6 | This API, when called, will calculate the Hash using the\r | |
7 | hashing algorithm specified by PcdHashApiLibPolicy.\r | |
8 | \r | |
9 | Copyright (c) 2020-2022, Intel Corporation. All rights reserved.<BR>\r | |
10 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
11 | \r | |
12 | **/\r | |
13 | \r | |
14 | #include <Base.h>\r | |
15 | #include <IndustryStandard/Tpm20.h>\r | |
16 | #include <Library/BaseLib.h>\r | |
17 | #include <Library/BaseMemoryLib.h>\r | |
18 | #include <Library/MemoryAllocationLib.h>\r | |
19 | #include <Library/BaseCryptLib.h>\r | |
20 | #include <Library/DebugLib.h>\r | |
21 | #include <Library/PcdLib.h>\r | |
22 | #include <Library/HashApiLib.h>\r | |
23 | \r | |
24 | /**\r | |
25 | Retrieves the size, in bytes, of the context buffer required for hash operations.\r | |
26 | \r | |
27 | @return The size, in bytes, of the context buffer required for hash operations.\r | |
28 | **/\r | |
29 | UINTN\r | |
30 | EFIAPI\r | |
31 | HashApiGetContextSize (\r | |
32 | VOID\r | |
33 | )\r | |
34 | {\r | |
35 | switch (PcdGet32 (PcdHashApiLibPolicy)) {\r | |
36 | #ifndef DISABLE_SHA1_DEPRECATED_INTERFACES\r | |
37 | case HASH_ALG_SHA1:\r | |
38 | return Sha1GetContextSize ();\r | |
39 | break;\r | |
40 | #endif\r | |
41 | \r | |
42 | case HASH_ALG_SHA256:\r | |
43 | return Sha256GetContextSize ();\r | |
44 | break;\r | |
45 | \r | |
46 | case HASH_ALG_SHA384:\r | |
47 | return Sha384GetContextSize ();\r | |
48 | break;\r | |
49 | \r | |
50 | case HASH_ALG_SHA512:\r | |
51 | return Sha512GetContextSize ();\r | |
52 | break;\r | |
53 | \r | |
54 | case HASH_ALG_SM3_256:\r | |
55 | return Sm3GetContextSize ();\r | |
56 | break;\r | |
57 | \r | |
58 | default:\r | |
59 | ASSERT (FALSE);\r | |
60 | return 0;\r | |
61 | break;\r | |
62 | }\r | |
63 | }\r | |
64 | \r | |
65 | /**\r | |
66 | Init hash sequence.\r | |
67 | \r | |
68 | @param[out] HashContext Hash context.\r | |
69 | \r | |
70 | @retval TRUE Hash start and HashHandle returned.\r | |
71 | @retval FALSE Hash Init unsuccessful.\r | |
72 | **/\r | |
73 | BOOLEAN\r | |
74 | EFIAPI\r | |
75 | HashApiInit (\r | |
76 | OUT HASH_API_CONTEXT HashContext\r | |
77 | )\r | |
78 | {\r | |
79 | switch (PcdGet32 (PcdHashApiLibPolicy)) {\r | |
80 | #ifndef DISABLE_SHA1_DEPRECATED_INTERFACES\r | |
81 | case HASH_ALG_SHA1:\r | |
82 | return Sha1Init (HashContext);\r | |
83 | break;\r | |
84 | #endif\r | |
85 | \r | |
86 | case HASH_ALG_SHA256:\r | |
87 | return Sha256Init (HashContext);\r | |
88 | break;\r | |
89 | \r | |
90 | case HASH_ALG_SHA384:\r | |
91 | return Sha384Init (HashContext);\r | |
92 | break;\r | |
93 | \r | |
94 | case HASH_ALG_SHA512:\r | |
95 | return Sha512Init (HashContext);\r | |
96 | break;\r | |
97 | \r | |
98 | case HASH_ALG_SM3_256:\r | |
99 | return Sm3Init (HashContext);\r | |
100 | break;\r | |
101 | \r | |
102 | default:\r | |
103 | ASSERT (FALSE);\r | |
104 | return FALSE;\r | |
105 | break;\r | |
106 | }\r | |
107 | }\r | |
108 | \r | |
109 | /**\r | |
110 | Makes a copy of an existing hash context.\r | |
111 | \r | |
112 | @param[in] HashContext Hash context.\r | |
113 | @param[out] NewHashContext New copy of hash context.\r | |
114 | \r | |
115 | @retval TRUE Hash context copy succeeded.\r | |
116 | @retval FALSE Hash context copy failed.\r | |
117 | **/\r | |
118 | BOOLEAN\r | |
119 | EFIAPI\r | |
120 | HashApiDuplicate (\r | |
121 | IN HASH_API_CONTEXT HashContext,\r | |
122 | OUT HASH_API_CONTEXT NewHashContext\r | |
123 | )\r | |
124 | {\r | |
125 | switch (PcdGet32 (PcdHashApiLibPolicy)) {\r | |
126 | #ifndef DISABLE_SHA1_DEPRECATED_INTERFACES\r | |
127 | case HASH_ALG_SHA1:\r | |
128 | return Sha1Duplicate (HashContext, NewHashContext);\r | |
129 | break;\r | |
130 | #endif\r | |
131 | \r | |
132 | case HASH_ALG_SHA256:\r | |
133 | return Sha256Duplicate (HashContext, NewHashContext);\r | |
134 | break;\r | |
135 | \r | |
136 | case HASH_ALG_SHA384:\r | |
137 | return Sha384Duplicate (HashContext, NewHashContext);\r | |
138 | break;\r | |
139 | \r | |
140 | case HASH_ALG_SHA512:\r | |
141 | return Sha512Duplicate (HashContext, NewHashContext);\r | |
142 | break;\r | |
143 | \r | |
144 | case HASH_ALG_SM3_256:\r | |
145 | return Sm3Duplicate (HashContext, NewHashContext);\r | |
146 | break;\r | |
147 | \r | |
148 | default:\r | |
149 | ASSERT (FALSE);\r | |
150 | return FALSE;\r | |
151 | break;\r | |
152 | }\r | |
153 | }\r | |
154 | \r | |
155 | /**\r | |
156 | Update hash data.\r | |
157 | \r | |
158 | @param[in] HashContext Hash context.\r | |
159 | @param[in] DataToHash Data to be hashed.\r | |
160 | @param[in] DataToHashLen Data size.\r | |
161 | \r | |
162 | @retval TRUE Hash updated.\r | |
163 | @retval FALSE Hash updated unsuccessful.\r | |
164 | **/\r | |
165 | BOOLEAN\r | |
166 | EFIAPI\r | |
167 | HashApiUpdate (\r | |
168 | IN HASH_API_CONTEXT HashContext,\r | |
169 | IN VOID *DataToHash,\r | |
170 | IN UINTN DataToHashLen\r | |
171 | )\r | |
172 | {\r | |
173 | switch (PcdGet32 (PcdHashApiLibPolicy)) {\r | |
174 | #ifndef DISABLE_SHA1_DEPRECATED_INTERFACES\r | |
175 | case HASH_ALG_SHA1:\r | |
176 | return Sha1Update (HashContext, DataToHash, DataToHashLen);\r | |
177 | break;\r | |
178 | #endif\r | |
179 | \r | |
180 | case HASH_ALG_SHA256:\r | |
181 | return Sha256Update (HashContext, DataToHash, DataToHashLen);\r | |
182 | break;\r | |
183 | \r | |
184 | case HASH_ALG_SHA384:\r | |
185 | return Sha384Update (HashContext, DataToHash, DataToHashLen);\r | |
186 | break;\r | |
187 | \r | |
188 | case HASH_ALG_SHA512:\r | |
189 | return Sha512Update (HashContext, DataToHash, DataToHashLen);\r | |
190 | break;\r | |
191 | \r | |
192 | case HASH_ALG_SM3_256:\r | |
193 | return Sm3Update (HashContext, DataToHash, DataToHashLen);\r | |
194 | break;\r | |
195 | \r | |
196 | default:\r | |
197 | ASSERT (FALSE);\r | |
198 | return FALSE;\r | |
199 | break;\r | |
200 | }\r | |
201 | }\r | |
202 | \r | |
203 | /**\r | |
204 | Hash complete.\r | |
205 | \r | |
206 | @param[in] HashContext Hash context.\r | |
207 | @param[out] Digest Hash Digest.\r | |
208 | \r | |
209 | @retval TRUE Hash complete and Digest is returned.\r | |
210 | @retval FALSE Hash complete unsuccessful.\r | |
211 | **/\r | |
212 | BOOLEAN\r | |
213 | EFIAPI\r | |
214 | HashApiFinal (\r | |
215 | IN HASH_API_CONTEXT HashContext,\r | |
216 | OUT UINT8 *Digest\r | |
217 | )\r | |
218 | {\r | |
219 | switch (PcdGet32 (PcdHashApiLibPolicy)) {\r | |
220 | #ifndef DISABLE_SHA1_DEPRECATED_INTERFACES\r | |
221 | case HASH_ALG_SHA1:\r | |
222 | return Sha1Final (HashContext, Digest);\r | |
223 | break;\r | |
224 | #endif\r | |
225 | \r | |
226 | case HASH_ALG_SHA256:\r | |
227 | return Sha256Final (HashContext, Digest);\r | |
228 | break;\r | |
229 | \r | |
230 | case HASH_ALG_SHA384:\r | |
231 | return Sha384Final (HashContext, Digest);\r | |
232 | break;\r | |
233 | \r | |
234 | case HASH_ALG_SHA512:\r | |
235 | return Sha512Final (HashContext, Digest);\r | |
236 | break;\r | |
237 | \r | |
238 | case HASH_ALG_SM3_256:\r | |
239 | return Sm3Final (HashContext, Digest);\r | |
240 | break;\r | |
241 | \r | |
242 | default:\r | |
243 | ASSERT (FALSE);\r | |
244 | return FALSE;\r | |
245 | break;\r | |
246 | }\r | |
247 | }\r | |
248 | \r | |
249 | /**\r | |
250 | Computes hash message digest of a input data buffer.\r | |
251 | \r | |
252 | @param[in] DataToHash Data to be hashed.\r | |
253 | @param[in] DataToHashLen Data size.\r | |
254 | @param[out] Digest Hash Digest.\r | |
255 | \r | |
256 | @retval TRUE Hash digest computation succeeded.\r | |
257 | @retval FALSE Hash digest computation failed.\r | |
258 | **/\r | |
259 | BOOLEAN\r | |
260 | EFIAPI\r | |
261 | HashApiHashAll (\r | |
262 | IN CONST VOID *DataToHash,\r | |
263 | IN UINTN DataToHashLen,\r | |
264 | OUT UINT8 *Digest\r | |
265 | )\r | |
266 | {\r | |
267 | switch (PcdGet32 (PcdHashApiLibPolicy)) {\r | |
268 | #ifndef DISABLE_SHA1_DEPRECATED_INTERFACES\r | |
269 | case HASH_ALG_SHA1:\r | |
270 | return Sha1HashAll (DataToHash, DataToHashLen, Digest);\r | |
271 | break;\r | |
272 | #endif\r | |
273 | \r | |
274 | case HASH_ALG_SHA256:\r | |
275 | return Sha256HashAll (DataToHash, DataToHashLen, Digest);\r | |
276 | break;\r | |
277 | \r | |
278 | case HASH_ALG_SHA384:\r | |
279 | return Sha384HashAll (DataToHash, DataToHashLen, Digest);\r | |
280 | break;\r | |
281 | \r | |
282 | case HASH_ALG_SHA512:\r | |
283 | return Sha512HashAll (DataToHash, DataToHashLen, Digest);\r | |
284 | break;\r | |
285 | \r | |
286 | case HASH_ALG_SM3_256:\r | |
287 | return Sm3HashAll (DataToHash, DataToHashLen, Digest);\r | |
288 | break;\r | |
289 | \r | |
290 | default:\r | |
291 | ASSERT (FALSE);\r | |
292 | return FALSE;\r | |
293 | break;\r | |
294 | }\r | |
295 | }\r |