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
|
/*
* QEMU Crypto hmac algorithms
*
* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* (at your option) any later version. See the COPYING file in the
* top-level directory.
*
*/
#ifndef QCRYPTO_HMAC_H
#define QCRYPTO_HMAC_H
#include "qapi/qapi-types-crypto.h"
typedef struct QCryptoHmac QCryptoHmac;
struct QCryptoHmac {
QCryptoHashAlgorithm alg;
void *opaque;
void *driver;
};
/**
* qcrypto_hmac_supports:
* @alg: the hmac algorithm
*
* Determine if @alg hmac algorithm is supported by
* the current configured build
*
* Returns:
* true if the algorithm is supported, false otherwise
*/
bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg);
/**
* qcrypto_hmac_new:
* @alg: the hmac algorithm
* @key: the key bytes
* @nkey: the length of @key
* @errp: pointer to a NULL-initialized error object
*
* Creates a new hmac object with the algorithm @alg
*
* The @key parameter provides the bytes representing
* the secret key to use. The @nkey parameter specifies
* the length of @key in bytes
*
* Note: must use qcrypto_hmac_free() to release the
* returned hmac object when no longer required
*
* Returns:
* a new hmac object, or NULL on error
*/
QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg,
const uint8_t *key, size_t nkey,
Error **errp);
/**
* qcrypto_hmac_free:
* @hmac: the hmac object
*
* Release the memory associated with @hmac that was
* previously allocated by qcrypto_hmac_new()
*/
void qcrypto_hmac_free(QCryptoHmac *hmac);
/**
* qcrypto_hmac_bytesv:
* @hmac: the hmac object
* @iov: the array of memory regions to hmac
* @niov: the length of @iov
* @result: pointer to hold output hmac
* @resultlen: pointer to hold length of @result
* @errp: pointer to a NULL-initialized error object
*
* Computes the hmac across all the memory regions
* present in @iov. The @result pointer will be
* filled with raw bytes representing the computed
* hmac, which will have length @resultlen. The
* memory pointer in @result must be released
* with a call to g_free() when no longer required.
*
* Returns:
* 0 on success, -1 on error
*/
int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
const struct iovec *iov,
size_t niov,
uint8_t **result,
size_t *resultlen,
Error **errp);
/**
* qcrypto_hmac_bytes:
* @hmac: the hmac object
* @buf: the memory region to hmac
* @len: the length of @buf
* @result: pointer to hold output hmac
* @resultlen: pointer to hold length of @result
* @errp: pointer to a NULL-initialized error object
*
* Computes the hmac across all the memory region
* @buf of length @len. The @result pointer will be
* filled with raw bytes representing the computed
* hmac, which will have length @resultlen. The
* memory pointer in @result must be released
* with a call to g_free() when no longer required.
*
* Returns:
* 0 on success, -1 on error
*/
int qcrypto_hmac_bytes(QCryptoHmac *hmac,
const char *buf,
size_t len,
uint8_t **result,
size_t *resultlen,
Error **errp);
/**
* qcrypto_hmac_digestv:
* @hmac: the hmac object
* @iov: the array of memory regions to hmac
* @niov: the length of @iov
* @digest: pointer to hold output hmac
* @errp: pointer to a NULL-initialized error object
*
* Computes the hmac across all the memory regions
* present in @iov. The @digest pointer will be
* filled with the printable hex digest of the computed
* hmac, which will be terminated by '\0'. The
* memory pointer in @digest must be released
* with a call to g_free() when no longer required.
*
* Returns:
* 0 on success, -1 on error
*/
int qcrypto_hmac_digestv(QCryptoHmac *hmac,
const struct iovec *iov,
size_t niov,
char **digest,
Error **errp);
/**
* qcrypto_hmac_digest:
* @hmac: the hmac object
* @buf: the memory region to hmac
* @len: the length of @buf
* @digest: pointer to hold output hmac
* @errp: pointer to a NULL-initialized error object
*
* Computes the hmac across all the memory region
* @buf of length @len. The @digest pointer will be
* filled with the printable hex digest of the computed
* hmac, which will be terminated by '\0'. The
* memory pointer in @digest must be released
* with a call to g_free() when no longer required.
*
* Returns: 0 on success, -1 on error
*/
int qcrypto_hmac_digest(QCryptoHmac *hmac,
const char *buf,
size_t len,
char **digest,
Error **errp);
#endif
|
