1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/** @file
SHA-1 Digest Wrapper Implementation over OpenSSL.
Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "InternalCryptLib.h"
#include <openssl/sha.h>
/**
Retrieves the size, in bytes, of the context buffer required for SHA-1 hash operations.
@return The size, in bytes, of the context buffer required for SHA-1 hash operations.
**/
UINTN
EFIAPI
Sha1GetContextSize (
VOID
)
{
//
// Retrieves OpenSSL SHA Context Size
//
return (UINTN) (sizeof (SHA_CTX));
}
/**
Initializes user-supplied memory pointed by Sha1Context as SHA-1 hash context for
subsequent use.
If Sha1Context is NULL, then return FALSE.
@param[out] Sha1Context Pointer to SHA-1 context being initialized.
@retval TRUE SHA-1 context initialization succeeded.
@retval FALSE SHA-1 context initialization failed.
**/
BOOLEAN
EFIAPI
Sha1Init (
OUT VOID *Sha1Context
)
{
//
// Check input parameters.
//
if (Sha1Context == NULL) {
return FALSE;
}
//
// OpenSSL SHA-1 Context Initialization
//
return (BOOLEAN) (SHA1_Init ((SHA_CTX *) Sha1Context));
}
/**
Makes a copy of an existing SHA-1 context.
If Sha1Context is NULL, then return FALSE.
If NewSha1Context is NULL, then return FALSE.
@param[in] Sha1Context Pointer to SHA-1 context being copied.
@param[out] NewSha1Context Pointer to new SHA-1 context.
@retval TRUE SHA-1 context copy succeeded.
@retval FALSE SHA-1 context copy failed.
**/
BOOLEAN
EFIAPI
Sha1Duplicate (
IN CONST VOID *Sha1Context,
OUT VOID *NewSha1Context
)
{
//
// Check input parameters.
//
if (Sha1Context == NULL || NewSha1Context == NULL) {
return FALSE;
}
CopyMem (NewSha1Context, Sha1Context, sizeof (SHA_CTX));
return TRUE;
}
/**
Digests the input data and updates SHA-1 context.
This function performs SHA-1 digest on a data buffer of the specified size.
It can be called multiple times to compute the digest of long or discontinuous data streams.
SHA-1 context should be already correctly initialized by Sha1Init(), and should not be finalized
by Sha1Final(). Behavior with invalid context is undefined.
If Sha1Context is NULL, then return FALSE.
@param[in, out] Sha1Context Pointer to the SHA-1 context.
@param[in] Data Pointer to the buffer containing the data to be hashed.
@param[in] DataSize Size of Data buffer in bytes.
@retval TRUE SHA-1 data digest succeeded.
@retval FALSE SHA-1 data digest failed.
**/
BOOLEAN
EFIAPI
Sha1Update (
IN OUT VOID *Sha1Context,
IN CONST VOID *Data,
IN UINTN DataSize
)
{
//
// Check input parameters.
//
if (Sha1Context == NULL) {
return FALSE;
}
//
// Check invalid parameters, in case that only DataLength was checked in OpenSSL
//
if (Data == NULL && DataSize != 0) {
return FALSE;
}
//
// OpenSSL SHA-1 Hash Update
//
return (BOOLEAN) (SHA1_Update ((SHA_CTX *) Sha1Context, Data, DataSize));
}
/**
Completes computation of the SHA-1 digest value.
This function completes SHA-1 hash computation and retrieves the digest value into
the specified memory. After this function has been called, the SHA-1 context cannot
be used again.
SHA-1 context should be already correctly initialized by Sha1Init(), and should not be
finalized by Sha1Final(). Behavior with invalid SHA-1 context is undefined.
If Sha1Context is NULL, then return FALSE.
If HashValue is NULL, then return FALSE.
@param[in, out] Sha1Context Pointer to the SHA-1 context.
@param[out] HashValue Pointer to a buffer that receives the SHA-1 digest
value (20 bytes).
@retval TRUE SHA-1 digest computation succeeded.
@retval FALSE SHA-1 digest computation failed.
**/
BOOLEAN
EFIAPI
Sha1Final (
IN OUT VOID *Sha1Context,
OUT UINT8 *HashValue
)
{
//
// Check input parameters.
//
if (Sha1Context == NULL || HashValue == NULL) {
return FALSE;
}
//
// OpenSSL SHA-1 Hash Finalization
//
return (BOOLEAN) (SHA1_Final (HashValue, (SHA_CTX *) Sha1Context));
}
/**
Computes the SHA-1 message digest of a input data buffer.
This function performs the SHA-1 message digest of a given data buffer, and places
the digest value into the specified memory.
If this interface is not supported, then return FALSE.
@param[in] Data Pointer to the buffer containing the data to be hashed.
@param[in] DataSize Size of Data buffer in bytes.
@param[out] HashValue Pointer to a buffer that receives the SHA-1 digest
value (20 bytes).
@retval TRUE SHA-1 digest computation succeeded.
@retval FALSE SHA-1 digest computation failed.
@retval FALSE This interface is not supported.
**/
BOOLEAN
EFIAPI
Sha1HashAll (
IN CONST VOID *Data,
IN UINTN DataSize,
OUT UINT8 *HashValue
)
{
//
// Check input parameters.
//
if (HashValue == NULL) {
return FALSE;
}
if (Data == NULL && DataSize != 0) {
return FALSE;
}
//
// OpenSSL SHA-1 Hash Computation.
//
if (SHA1 (Data, DataSize, HashValue) == NULL) {
return FALSE;
} else {
return TRUE;
}
}
|
