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97f98500 HT |
1 | /** @file\r |
2 | MD5 Digest Wrapper Implementation over OpenSSL.\r | |
3 | \r | |
b7d1ba0a | 4 | Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>\r |
2009f6b4 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
97f98500 HT |
6 | \r |
7 | **/\r | |
8 | \r | |
a8c44645 | 9 | #include "InternalCryptLib.h"\r |
97f98500 HT |
10 | #include <openssl/md5.h>\r |
11 | \r | |
12 | \r | |
13 | /**\r | |
14 | Retrieves the size, in bytes, of the context buffer required for MD5 hash operations.\r | |
15 | \r | |
16 | @return The size, in bytes, of the context buffer required for MD5 hash operations.\r | |
17 | \r | |
18 | **/\r | |
19 | UINTN\r | |
20 | EFIAPI\r | |
21 | Md5GetContextSize (\r | |
22 | VOID\r | |
23 | )\r | |
24 | {\r | |
25 | //\r | |
26 | // Retrieves the OpenSSL MD5 Context Size\r | |
27 | //\r | |
6b8ebcb8 | 28 | return (UINTN) (sizeof (MD5_CTX));\r |
97f98500 HT |
29 | }\r |
30 | \r | |
31 | \r | |
32 | /**\r | |
33 | Initializes user-supplied memory pointed by Md5Context as MD5 hash context for\r | |
34 | subsequent use.\r | |
35 | \r | |
16d2c32c | 36 | If Md5Context is NULL, then return FALSE.\r |
97f98500 | 37 | \r |
a8c44645 | 38 | @param[out] Md5Context Pointer to MD5 context being initialized.\r |
97f98500 HT |
39 | \r |
40 | @retval TRUE MD5 context initialization succeeded.\r | |
41 | @retval FALSE MD5 context initialization failed.\r | |
42 | \r | |
43 | **/\r | |
44 | BOOLEAN\r | |
45 | EFIAPI\r | |
46 | Md5Init (\r | |
a8c44645 | 47 | OUT VOID *Md5Context\r |
97f98500 HT |
48 | )\r |
49 | {\r | |
50 | //\r | |
16d2c32c | 51 | // Check input parameters.\r |
97f98500 | 52 | //\r |
8ca8dd9b | 53 | if (Md5Context == NULL) {\r |
16d2c32c | 54 | return FALSE;\r |
55 | }\r | |
97f98500 HT |
56 | \r |
57 | //\r | |
58 | // OpenSSL MD5 Context Initialization\r | |
59 | //\r | |
6b8ebcb8 | 60 | return (BOOLEAN) (MD5_Init ((MD5_CTX *) Md5Context));\r |
97f98500 HT |
61 | }\r |
62 | \r | |
a8c44645 | 63 | /**\r |
64 | Makes a copy of an existing MD5 context.\r | |
65 | \r | |
16d2c32c | 66 | If Md5Context is NULL, then return FALSE.\r |
67 | If NewMd5Context is NULL, then return FALSE.\r | |
a8c44645 | 68 | \r |
69 | @param[in] Md5Context Pointer to MD5 context being copied.\r | |
70 | @param[out] NewMd5Context Pointer to new MD5 context.\r | |
71 | \r | |
72 | @retval TRUE MD5 context copy succeeded.\r | |
73 | @retval FALSE MD5 context copy failed.\r | |
74 | \r | |
75 | **/\r | |
76 | BOOLEAN\r | |
77 | EFIAPI\r | |
78 | Md5Duplicate (\r | |
79 | IN CONST VOID *Md5Context,\r | |
80 | OUT VOID *NewMd5Context\r | |
81 | )\r | |
82 | {\r | |
4a567c96 | 83 | //\r |
16d2c32c | 84 | // Check input parameters.\r |
4a567c96 | 85 | //\r |
16d2c32c | 86 | if (Md5Context == NULL || NewMd5Context == NULL) {\r |
87 | return FALSE;\r | |
88 | }\r | |
4a567c96 | 89 | \r |
a8c44645 | 90 | CopyMem (NewMd5Context, Md5Context, sizeof (MD5_CTX));\r |
91 | \r | |
92 | return TRUE;\r | |
93 | }\r | |
97f98500 HT |
94 | \r |
95 | /**\r | |
a8c44645 | 96 | Digests the input data and updates MD5 context.\r |
97 | \r | |
98 | This function performs MD5 digest on a data buffer of the specified size.\r | |
99 | It can be called multiple times to compute the digest of long or discontinuous data streams.\r | |
2998af86 | 100 | MD5 context should be already correctly initialized by Md5Init(), and should not be finalized\r |
a8c44645 | 101 | by Md5Final(). Behavior with invalid context is undefined.\r |
97f98500 | 102 | \r |
16d2c32c | 103 | If Md5Context is NULL, then return FALSE.\r |
97f98500 HT |
104 | \r |
105 | @param[in, out] Md5Context Pointer to the MD5 context.\r | |
106 | @param[in] Data Pointer to the buffer containing the data to be hashed.\r | |
a8c44645 | 107 | @param[in] DataSize Size of Data buffer in bytes.\r |
97f98500 HT |
108 | \r |
109 | @retval TRUE MD5 data digest succeeded.\r | |
a8c44645 | 110 | @retval FALSE MD5 data digest failed.\r |
97f98500 HT |
111 | \r |
112 | **/\r | |
113 | BOOLEAN\r | |
114 | EFIAPI\r | |
115 | Md5Update (\r | |
116 | IN OUT VOID *Md5Context,\r | |
117 | IN CONST VOID *Data,\r | |
a8c44645 | 118 | IN UINTN DataSize\r |
97f98500 HT |
119 | )\r |
120 | {\r | |
121 | //\r | |
16d2c32c | 122 | // Check input parameters.\r |
97f98500 | 123 | //\r |
16d2c32c | 124 | if (Md5Context == NULL) {\r |
125 | return FALSE;\r | |
126 | }\r | |
97f98500 HT |
127 | \r |
128 | //\r | |
16d2c32c | 129 | // Check invalid parameters, in case that only DataLength was checked in OpenSSL\r |
97f98500 | 130 | //\r |
16d2c32c | 131 | if (Data == NULL && (DataSize != 0)) {\r |
132 | return FALSE;\r | |
97f98500 HT |
133 | }\r |
134 | \r | |
135 | //\r | |
136 | // OpenSSL MD5 Hash Update\r | |
137 | //\r | |
6b8ebcb8 | 138 | return (BOOLEAN) (MD5_Update ((MD5_CTX *) Md5Context, Data, DataSize));\r |
97f98500 HT |
139 | }\r |
140 | \r | |
97f98500 | 141 | /**\r |
a8c44645 | 142 | Completes computation of the MD5 digest value.\r |
143 | \r | |
144 | This function completes MD5 hash computation and retrieves the digest value into\r | |
145 | the specified memory. After this function has been called, the MD5 context cannot\r | |
146 | be used again.\r | |
2998af86 | 147 | MD5 context should be already correctly initialized by Md5Init(), and should not be\r |
a8c44645 | 148 | finalized by Md5Final(). Behavior with invalid MD5 context is undefined.\r |
97f98500 | 149 | \r |
16d2c32c | 150 | If Md5Context is NULL, then return FALSE.\r |
151 | If HashValue is NULL, then return FALSE.\r | |
97f98500 | 152 | \r |
a8c44645 | 153 | @param[in, out] Md5Context Pointer to the MD5 context.\r |
97f98500 HT |
154 | @param[out] HashValue Pointer to a buffer that receives the MD5 digest\r |
155 | value (16 bytes).\r | |
156 | \r | |
157 | @retval TRUE MD5 digest computation succeeded.\r | |
158 | @retval FALSE MD5 digest computation failed.\r | |
159 | \r | |
160 | **/\r | |
161 | BOOLEAN\r | |
162 | EFIAPI\r | |
163 | Md5Final (\r | |
164 | IN OUT VOID *Md5Context,\r | |
165 | OUT UINT8 *HashValue\r | |
166 | )\r | |
167 | {\r | |
168 | //\r | |
16d2c32c | 169 | // Check input parameters.\r |
97f98500 | 170 | //\r |
16d2c32c | 171 | if (Md5Context == NULL || HashValue == NULL) {\r |
172 | return FALSE;\r | |
173 | }\r | |
97f98500 HT |
174 | \r |
175 | //\r | |
176 | // OpenSSL MD5 Hash Finalization\r | |
177 | //\r | |
6b8ebcb8 | 178 | return (BOOLEAN) (MD5_Final (HashValue, (MD5_CTX *) Md5Context));\r |
97f98500 | 179 | }\r |
b7d1ba0a QL |
180 | \r |
181 | /**\r | |
182 | Computes the MD5 message digest of a input data buffer.\r | |
183 | \r | |
184 | This function performs the MD5 message digest of a given data buffer, and places\r | |
185 | the digest value into the specified memory.\r | |
186 | \r | |
187 | If this interface is not supported, then return FALSE.\r | |
188 | \r | |
189 | @param[in] Data Pointer to the buffer containing the data to be hashed.\r | |
190 | @param[in] DataSize Size of Data buffer in bytes.\r | |
191 | @param[out] HashValue Pointer to a buffer that receives the MD5 digest\r | |
192 | value (16 bytes).\r | |
193 | \r | |
194 | @retval TRUE MD5 digest computation succeeded.\r | |
195 | @retval FALSE MD5 digest computation failed.\r | |
196 | @retval FALSE This interface is not supported.\r | |
197 | \r | |
198 | **/\r | |
199 | BOOLEAN\r | |
200 | EFIAPI\r | |
201 | Md5HashAll (\r | |
202 | IN CONST VOID *Data,\r | |
203 | IN UINTN DataSize,\r | |
204 | OUT UINT8 *HashValue\r | |
205 | )\r | |
206 | {\r | |
207 | //\r | |
208 | // Check input parameters.\r | |
209 | //\r | |
210 | if (HashValue == NULL) {\r | |
211 | return FALSE;\r | |
212 | }\r | |
213 | if (Data == NULL && (DataSize != 0)) {\r | |
214 | return FALSE;\r | |
215 | }\r | |
216 | \r | |
217 | //\r | |
218 | // OpenSSL MD5 Hash Computation.\r | |
219 | //\r | |
220 | if (MD5 (Data, DataSize, HashValue) == NULL) {\r | |
221 | return FALSE;\r | |
222 | } else {\r | |
223 | return TRUE;\r | |
224 | }\r | |
225 | }\r |