summaryrefslogtreecommitdiff
path: root/src/gnutls/crypto.c
blob: 0921f2c57d90b4bb810510e57261bacb4e7f2d90 (plain)
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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
/**
 * XMLSec library
 *
 * This is free software; see Copyright file in the source
 * distribution for preciese wording.
 *
 * Copyright (C) 2002-2016 Aleksey Sanin <aleksey@aleksey.com>. All Rights Reserved.
 */
#include "globals.h"

#include <string.h>

#include <gcrypt.h>

#include <xmlsec/xmlsec.h>
#include <xmlsec/keys.h>
#include <xmlsec/transforms.h>
#include <xmlsec/errors.h>
#include <xmlsec/dl.h>
#include <xmlsec/private.h>

#include <xmlsec/gnutls/app.h>
#include <xmlsec/gnutls/crypto.h>
#include <xmlsec/gnutls/x509.h>

static xmlSecCryptoDLFunctionsPtr gXmlSecGnuTLSFunctions = NULL;

/**
 * xmlSecCryptoGetFunctions_gnutls:
 *
 * Gets the pointer to xmlsec-gnutls functions table.
 *
 * Returns: the xmlsec-gnutls functions table or NULL if an error occurs.
 */
xmlSecCryptoDLFunctionsPtr
xmlSecCryptoGetFunctions_gnutls(void) {
    static xmlSecCryptoDLFunctions functions;

    if(gXmlSecGnuTLSFunctions != NULL) {
        return(gXmlSecGnuTLSFunctions);
    }

    memset(&functions, 0, sizeof(functions));
    gXmlSecGnuTLSFunctions = &functions;

    /********************************************************************
     *
     * Crypto Init/shutdown
     *
     ********************************************************************/
    gXmlSecGnuTLSFunctions->cryptoInit                  = xmlSecGnuTLSInit;
    gXmlSecGnuTLSFunctions->cryptoShutdown              = xmlSecGnuTLSShutdown;
    gXmlSecGnuTLSFunctions->cryptoKeysMngrInit          = xmlSecGnuTLSKeysMngrInit;

    /********************************************************************
     *
     * Key data ids
     *
     ********************************************************************/
#ifndef XMLSEC_NO_AES
    gXmlSecGnuTLSFunctions->keyDataAesGetKlass          = xmlSecGnuTLSKeyDataAesGetKlass;
#endif /* XMLSEC_NO_AES */

#ifndef XMLSEC_NO_DES
    gXmlSecGnuTLSFunctions->keyDataDesGetKlass          = xmlSecGnuTLSKeyDataDesGetKlass;
#endif /* XMLSEC_NO_DES */

#ifndef XMLSEC_NO_DSA
    gXmlSecGnuTLSFunctions->keyDataDsaGetKlass          = xmlSecGnuTLSKeyDataDsaGetKlass;
#endif /* XMLSEC_NO_DSA */

#ifndef XMLSEC_NO_HMAC
    gXmlSecGnuTLSFunctions->keyDataHmacGetKlass         = xmlSecGnuTLSKeyDataHmacGetKlass;
#endif /* XMLSEC_NO_HMAC */

#ifndef XMLSEC_NO_RSA
    gXmlSecGnuTLSFunctions->keyDataRsaGetKlass          = xmlSecGnuTLSKeyDataRsaGetKlass;
#endif /* XMLSEC_NO_RSA */

#ifndef XMLSEC_NO_X509
    gXmlSecGnuTLSFunctions->keyDataX509GetKlass         = xmlSecGnuTLSKeyDataX509GetKlass;
    gXmlSecGnuTLSFunctions->keyDataRawX509CertGetKlass  = xmlSecGnuTLSKeyDataRawX509CertGetKlass;
#endif /* XMLSEC_NO_X509 */

    /********************************************************************
     *
     * Key data store ids
     *
     ********************************************************************/
#ifndef XMLSEC_NO_X509
    gXmlSecGnuTLSFunctions->x509StoreGetKlass           = xmlSecGnuTLSX509StoreGetKlass;
#endif /* XMLSEC_NO_X509 */

    /********************************************************************
     *
     * Crypto transforms ids
     *
     ********************************************************************/

    /******************************* AES ********************************/
#ifndef XMLSEC_NO_AES
    gXmlSecGnuTLSFunctions->transformAes128CbcGetKlass          = xmlSecGnuTLSTransformAes128CbcGetKlass;
    gXmlSecGnuTLSFunctions->transformAes192CbcGetKlass          = xmlSecGnuTLSTransformAes192CbcGetKlass;
    gXmlSecGnuTLSFunctions->transformAes256CbcGetKlass          = xmlSecGnuTLSTransformAes256CbcGetKlass;
    gXmlSecGnuTLSFunctions->transformKWAes128GetKlass           = xmlSecGnuTLSTransformKWAes128GetKlass;
    gXmlSecGnuTLSFunctions->transformKWAes192GetKlass           = xmlSecGnuTLSTransformKWAes192GetKlass;
    gXmlSecGnuTLSFunctions->transformKWAes256GetKlass           = xmlSecGnuTLSTransformKWAes256GetKlass;
#endif /* XMLSEC_NO_AES */

    /******************************* DES ********************************/
#ifndef XMLSEC_NO_DES
    gXmlSecGnuTLSFunctions->transformDes3CbcGetKlass            = xmlSecGnuTLSTransformDes3CbcGetKlass;
    gXmlSecGnuTLSFunctions->transformKWDes3GetKlass             = xmlSecGnuTLSTransformKWDes3GetKlass;
#endif /* XMLSEC_NO_DES */

    /******************************* DSA ********************************/
#ifndef XMLSEC_NO_DSA

#ifndef XMLSEC_NO_SHA1
    gXmlSecGnuTLSFunctions->transformDsaSha1GetKlass            = xmlSecGnuTLSTransformDsaSha1GetKlass;
#endif /* XMLSEC_NO_SHA1 */

#endif /* XMLSEC_NO_DSA */

    /******************************* HMAC ********************************/
#ifndef XMLSEC_NO_HMAC

#ifndef XMLSEC_NO_MD5
    gXmlSecGnuTLSFunctions->transformHmacMd5GetKlass            = xmlSecGnuTLSTransformHmacMd5GetKlass;
#endif /* XMLSEC_NO_MD5 */

#ifndef XMLSEC_NO_RIPEMD160
    gXmlSecGnuTLSFunctions->transformHmacRipemd160GetKlass      = xmlSecGnuTLSTransformHmacRipemd160GetKlass;
#endif /* XMLSEC_NO_RIPEMD160 */

#ifndef XMLSEC_NO_SHA1
    gXmlSecGnuTLSFunctions->transformHmacSha1GetKlass           = xmlSecGnuTLSTransformHmacSha1GetKlass;
#endif /* XMLSEC_NO_SHA1 */

#ifndef XMLSEC_NO_SHA256
    gXmlSecGnuTLSFunctions->transformHmacSha256GetKlass         = xmlSecGnuTLSTransformHmacSha256GetKlass;
#endif /* XMLSEC_NO_SHA256 */

#ifndef XMLSEC_NO_SHA384
    gXmlSecGnuTLSFunctions->transformHmacSha384GetKlass         = xmlSecGnuTLSTransformHmacSha384GetKlass;
#endif /* XMLSEC_NO_SHA384 */

#ifndef XMLSEC_NO_SHA512
    gXmlSecGnuTLSFunctions->transformHmacSha512GetKlass         = xmlSecGnuTLSTransformHmacSha512GetKlass;
#endif /* XMLSEC_NO_SHA512 */

#endif /* XMLSEC_NO_HMAC */

    /******************************* MD5 ********************************/
#ifndef XMLSEC_NO_MD5
    gXmlSecGnuTLSFunctions->transformMd5GetKlass                = xmlSecGnuTLSTransformMd5GetKlass;
#endif /* XMLSEC_NO_MD5 */

    /******************************* RIPEMD160 ********************************/
#ifndef XMLSEC_NO_RIPEMD160
    gXmlSecGnuTLSFunctions->transformRipemd160GetKlass          = xmlSecGnuTLSTransformRipemd160GetKlass;
#endif /* XMLSEC_NO_RIPEMD160 */

    /******************************* RSA ********************************/
#ifndef XMLSEC_NO_RSA

#ifndef XMLSEC_NO_MD5
    gXmlSecGnuTLSFunctions->transformRsaMd5GetKlass            = xmlSecGnuTLSTransformRsaMd5GetKlass;
#endif /* XMLSEC_NO_MD5 */

#ifndef XMLSEC_NO_RIPEMD160
    gXmlSecGnuTLSFunctions->transformRsaRipemd160GetKlass      = xmlSecGnuTLSTransformRsaRipemd160GetKlass;
#endif /* XMLSEC_NO_RIPEMD160 */

#ifndef XMLSEC_NO_SHA1
    gXmlSecGnuTLSFunctions->transformRsaSha1GetKlass           = xmlSecGnuTLSTransformRsaSha1GetKlass;
#endif /* XMLSEC_NO_SHA1 */

#ifndef XMLSEC_NO_SHA256
    gXmlSecGnuTLSFunctions->transformRsaSha256GetKlass         = xmlSecGnuTLSTransformRsaSha256GetKlass;
#endif /* XMLSEC_NO_SHA256 */

#ifndef XMLSEC_NO_SHA384
    gXmlSecGnuTLSFunctions->transformRsaSha384GetKlass         = xmlSecGnuTLSTransformRsaSha384GetKlass;
#endif /* XMLSEC_NO_SHA384 */

#ifndef XMLSEC_NO_SHA512
    gXmlSecGnuTLSFunctions->transformRsaSha512GetKlass         = xmlSecGnuTLSTransformRsaSha512GetKlass;
#endif /* XMLSEC_NO_SHA512 */

#endif /* XMLSEC_NO_RSA */

    /******************************* SHA ********************************/
#ifndef XMLSEC_NO_SHA1
    gXmlSecGnuTLSFunctions->transformSha1GetKlass               = xmlSecGnuTLSTransformSha1GetKlass;
#endif /* XMLSEC_NO_SHA1 */

#ifndef XMLSEC_NO_SHA256
    gXmlSecGnuTLSFunctions->transformSha256GetKlass             = xmlSecGnuTLSTransformSha256GetKlass;
#endif /* XMLSEC_NO_SHA256 */

#ifndef XMLSEC_NO_SHA384
    gXmlSecGnuTLSFunctions->transformSha384GetKlass             = xmlSecGnuTLSTransformSha384GetKlass;
#endif /* XMLSEC_NO_SHA384 */

#ifndef XMLSEC_NO_SHA512
    gXmlSecGnuTLSFunctions->transformSha512GetKlass             = xmlSecGnuTLSTransformSha512GetKlass;
#endif /* XMLSEC_NO_SHA512 */


    /********************************************************************
     *
     * High level routines form xmlsec command line utility
     *
     ********************************************************************/
    gXmlSecGnuTLSFunctions->cryptoAppInit                       = xmlSecGnuTLSAppInit;
    gXmlSecGnuTLSFunctions->cryptoAppShutdown                   = xmlSecGnuTLSAppShutdown;
    gXmlSecGnuTLSFunctions->cryptoAppDefaultKeysMngrInit        = xmlSecGnuTLSAppDefaultKeysMngrInit;
    gXmlSecGnuTLSFunctions->cryptoAppDefaultKeysMngrAdoptKey    = xmlSecGnuTLSAppDefaultKeysMngrAdoptKey;
    gXmlSecGnuTLSFunctions->cryptoAppDefaultKeysMngrLoad        = xmlSecGnuTLSAppDefaultKeysMngrLoad;
    gXmlSecGnuTLSFunctions->cryptoAppDefaultKeysMngrSave        = xmlSecGnuTLSAppDefaultKeysMngrSave;
#ifndef XMLSEC_NO_X509
    gXmlSecGnuTLSFunctions->cryptoAppKeysMngrCertLoad           = xmlSecGnuTLSAppKeysMngrCertLoad;
    gXmlSecGnuTLSFunctions->cryptoAppPkcs12Load                 = xmlSecGnuTLSAppPkcs12Load;
    gXmlSecGnuTLSFunctions->cryptoAppKeyCertLoad                = xmlSecGnuTLSAppKeyCertLoad;
#endif /* XMLSEC_NO_X509 */
    gXmlSecGnuTLSFunctions->cryptoAppKeyLoad                    = xmlSecGnuTLSAppKeyLoad;
    gXmlSecGnuTLSFunctions->cryptoAppDefaultPwdCallback         = (void*)xmlSecGnuTLSAppGetDefaultPwdCallback();

    return(gXmlSecGnuTLSFunctions);
}


/**
 * xmlSecGnuTLSInit:
 *
 * XMLSec library specific crypto engine initialization.
 *
 * Returns: 0 on success or a negative value otherwise.
 */
int
xmlSecGnuTLSInit (void)  {
    /* Check loaded xmlsec library version */
    if(xmlSecCheckVersionExact() != 1) {
        xmlSecError(XMLSEC_ERRORS_HERE,
                    NULL,
                    "xmlSecCheckVersionExact",
                    XMLSEC_ERRORS_R_XMLSEC_FAILED,
                    XMLSEC_ERRORS_NO_MESSAGE);
        return(-1);
    }

    /* register our klasses */
    if(xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms(xmlSecCryptoGetFunctions_gnutls()) < 0) {
        xmlSecError(XMLSEC_ERRORS_HERE,
                    NULL,
                    "xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms",
                    XMLSEC_ERRORS_R_XMLSEC_FAILED,
                    XMLSEC_ERRORS_NO_MESSAGE);
        return(-1);
    }

    return(0);
}

/**
 * xmlSecGnuTLSShutdown:
 *
 * XMLSec library specific crypto engine shutdown.
 *
 * Returns: 0 on success or a negative value otherwise.
 */
int
xmlSecGnuTLSShutdown(void) {
    return(0);
}

/**
 * xmlSecGnuTLSKeysMngrInit:
 * @mngr:               the pointer to keys manager.
 *
 * Adds GnuTLS specific key data stores in keys manager.
 *
 * Returns: 0 on success or a negative value otherwise.
 */
int
xmlSecGnuTLSKeysMngrInit(xmlSecKeysMngrPtr mngr) {
    int ret;

    xmlSecAssert2(mngr != NULL, -1);

#ifndef XMLSEC_NO_X509
    /* create x509 store if needed */
    if(xmlSecKeysMngrGetDataStore(mngr, xmlSecGnuTLSX509StoreId) == NULL) {
        xmlSecKeyDataStorePtr x509Store;

        x509Store = xmlSecKeyDataStoreCreate(xmlSecGnuTLSX509StoreId);
        if(x509Store == NULL) {
            xmlSecError(XMLSEC_ERRORS_HERE,
                        NULL,
                        "xmlSecKeyDataStoreCreate",
                        XMLSEC_ERRORS_R_XMLSEC_FAILED,
                        "xmlSecGnuTLSX509StoreId");
            return(-1);
        }

        ret = xmlSecKeysMngrAdoptDataStore(mngr, x509Store);
        if(ret < 0) {
            xmlSecError(XMLSEC_ERRORS_HERE,
                        NULL,
                        "xmlSecKeysMngrAdoptDataStore",
                        XMLSEC_ERRORS_R_XMLSEC_FAILED,
                        XMLSEC_ERRORS_NO_MESSAGE);
            xmlSecKeyDataStoreDestroy(x509Store);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_X509 */
    return(0);
}

/**
 * xmlSecGnuTLSGenerateRandom:
 * @buffer:             the destination buffer.
 * @size:               the numer of bytes to generate.
 *
 * Generates @size random bytes and puts result in @buffer.
 *
 * Returns: 0 on success or a negative value otherwise.
 */
int
xmlSecGnuTLSGenerateRandom(xmlSecBufferPtr buffer, xmlSecSize size) {
    int ret;

    xmlSecAssert2(buffer != NULL, -1);
    xmlSecAssert2(size > 0, -1);

    ret = xmlSecBufferSetSize(buffer, size);
    if(ret < 0) {
        xmlSecError(XMLSEC_ERRORS_HERE,
                    NULL,
                    "xmlSecBufferSetSize",
                    XMLSEC_ERRORS_R_XMLSEC_FAILED,
                    "size=%d", size);
        return(-1);
    }

    /* get random data */
    gcry_randomize(xmlSecBufferGetData(buffer), size, GCRY_STRONG_RANDOM);
    return(0);
}