]>
git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/asn1/ameth_lib.c
2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
60 #include "internal/cryptlib.h"
61 #include <openssl/asn1t.h>
62 #include <openssl/x509.h>
63 #include <openssl/engine.h>
64 #include "internal/asn1_int.h"
65 #include "internal/evp_int.h"
67 /* Keep this sorted in type order !! */
68 static const EVP_PKEY_ASN1_METHOD
*standard_methods
[] = {
69 #ifndef OPENSSL_NO_RSA
76 #ifndef OPENSSL_NO_DSA
87 #ifndef OPENSSL_NO_CMAC
95 typedef int sk_cmp_fn_type(const char *const *a
, const char *const *b
);
96 static STACK_OF(EVP_PKEY_ASN1_METHOD
) *app_methods
= NULL
;
102 for (i
= 0; i
< OSSL_NELEM(standard_methods
); i
++)
103 fprintf(stderr
, "Number %d id=%d (%s)\n", i
,
104 standard_methods
[i
]->pkey_id
,
105 OBJ_nid2sn(standard_methods
[i
]->pkey_id
));
109 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD
*,
110 const EVP_PKEY_ASN1_METHOD
*, ameth
);
112 static int ameth_cmp(const EVP_PKEY_ASN1_METHOD
*const *a
,
113 const EVP_PKEY_ASN1_METHOD
*const *b
)
115 return ((*a
)->pkey_id
- (*b
)->pkey_id
);
118 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD
*,
119 const EVP_PKEY_ASN1_METHOD
*, ameth
);
121 int EVP_PKEY_asn1_get_count(void)
123 int num
= OSSL_NELEM(standard_methods
);
125 num
+= sk_EVP_PKEY_ASN1_METHOD_num(app_methods
);
129 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_get0(int idx
)
131 int num
= OSSL_NELEM(standard_methods
);
135 return standard_methods
[idx
];
137 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods
, idx
);
140 static const EVP_PKEY_ASN1_METHOD
*pkey_asn1_find(int type
)
142 EVP_PKEY_ASN1_METHOD tmp
;
143 const EVP_PKEY_ASN1_METHOD
*t
= &tmp
, **ret
;
147 idx
= sk_EVP_PKEY_ASN1_METHOD_find(app_methods
, &tmp
);
149 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods
, idx
);
151 ret
= OBJ_bsearch_ameth(&t
, standard_methods
, OSSL_NELEM(standard_methods
));
158 * Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also
159 * search through engines and set *pe to a functional reference to the engine
160 * implementing 'type' or NULL if no engine implements it.
163 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_find(ENGINE
**pe
, int type
)
165 const EVP_PKEY_ASN1_METHOD
*t
;
168 t
= pkey_asn1_find(type
);
169 if (!t
|| !(t
->pkey_flags
& ASN1_PKEY_ALIAS
))
171 type
= t
->pkey_base_id
;
174 #ifndef OPENSSL_NO_ENGINE
176 /* type will contain the final unaliased type */
177 e
= ENGINE_get_pkey_asn1_meth_engine(type
);
180 return ENGINE_get_pkey_asn1_meth(e
, type
);
188 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_find_str(ENGINE
**pe
,
189 const char *str
, int len
)
192 const EVP_PKEY_ASN1_METHOD
*ameth
;
196 #ifndef OPENSSL_NO_ENGINE
198 ameth
= ENGINE_pkey_asn1_find_str(&e
, str
, len
);
201 * Convert structural into functional reference
212 for (i
= 0; i
< EVP_PKEY_asn1_get_count(); i
++) {
213 ameth
= EVP_PKEY_asn1_get0(i
);
214 if (ameth
->pkey_flags
& ASN1_PKEY_ALIAS
)
216 if (((int)strlen(ameth
->pem_str
) == len
)
217 && (strncasecmp(ameth
->pem_str
, str
, len
) == 0))
223 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD
*ameth
)
225 if (app_methods
== NULL
) {
226 app_methods
= sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp
);
227 if (app_methods
== NULL
)
230 if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods
, ameth
))
232 sk_EVP_PKEY_ASN1_METHOD_sort(app_methods
);
236 int EVP_PKEY_asn1_add_alias(int to
, int from
)
238 EVP_PKEY_ASN1_METHOD
*ameth
;
239 ameth
= EVP_PKEY_asn1_new(from
, ASN1_PKEY_ALIAS
, NULL
, NULL
);
242 ameth
->pkey_base_id
= to
;
243 if (!EVP_PKEY_asn1_add0(ameth
)) {
244 EVP_PKEY_asn1_free(ameth
);
250 int EVP_PKEY_asn1_get0_info(int *ppkey_id
, int *ppkey_base_id
,
251 int *ppkey_flags
, const char **pinfo
,
252 const char **ppem_str
,
253 const EVP_PKEY_ASN1_METHOD
*ameth
)
258 *ppkey_id
= ameth
->pkey_id
;
260 *ppkey_base_id
= ameth
->pkey_base_id
;
262 *ppkey_flags
= ameth
->pkey_flags
;
264 *pinfo
= ameth
->info
;
266 *ppem_str
= ameth
->pem_str
;
270 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_get0_asn1(EVP_PKEY
*pkey
)
275 EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_new(int id
, int flags
,
276 const char *pem_str
, const char *info
)
278 EVP_PKEY_ASN1_METHOD
*ameth
= OPENSSL_zalloc(sizeof(*ameth
));
284 ameth
->pkey_base_id
= id
;
285 ameth
->pkey_flags
= flags
| ASN1_PKEY_DYNAMIC
;
288 ameth
->info
= OPENSSL_strdup(info
);
294 ameth
->pem_str
= OPENSSL_strdup(pem_str
);
302 EVP_PKEY_asn1_free(ameth
);
307 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD
*dst
,
308 const EVP_PKEY_ASN1_METHOD
*src
)
311 dst
->pub_decode
= src
->pub_decode
;
312 dst
->pub_encode
= src
->pub_encode
;
313 dst
->pub_cmp
= src
->pub_cmp
;
314 dst
->pub_print
= src
->pub_print
;
316 dst
->priv_decode
= src
->priv_decode
;
317 dst
->priv_encode
= src
->priv_encode
;
318 dst
->priv_print
= src
->priv_print
;
320 dst
->old_priv_encode
= src
->old_priv_encode
;
321 dst
->old_priv_decode
= src
->old_priv_decode
;
323 dst
->pkey_size
= src
->pkey_size
;
324 dst
->pkey_bits
= src
->pkey_bits
;
326 dst
->param_decode
= src
->param_decode
;
327 dst
->param_encode
= src
->param_encode
;
328 dst
->param_missing
= src
->param_missing
;
329 dst
->param_copy
= src
->param_copy
;
330 dst
->param_cmp
= src
->param_cmp
;
331 dst
->param_print
= src
->param_print
;
333 dst
->pkey_free
= src
->pkey_free
;
334 dst
->pkey_ctrl
= src
->pkey_ctrl
;
336 dst
->item_sign
= src
->item_sign
;
337 dst
->item_verify
= src
->item_verify
;
341 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD
*ameth
)
343 if (ameth
&& (ameth
->pkey_flags
& ASN1_PKEY_DYNAMIC
)) {
344 OPENSSL_free(ameth
->pem_str
);
345 OPENSSL_free(ameth
->info
);
350 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD
*ameth
,
351 int (*pub_decode
) (EVP_PKEY
*pk
,
353 int (*pub_encode
) (X509_PUBKEY
*pub
,
355 int (*pub_cmp
) (const EVP_PKEY
*a
,
357 int (*pub_print
) (BIO
*out
,
358 const EVP_PKEY
*pkey
,
359 int indent
, ASN1_PCTX
*pctx
),
360 int (*pkey_size
) (const EVP_PKEY
*pk
),
361 int (*pkey_bits
) (const EVP_PKEY
*pk
))
363 ameth
->pub_decode
= pub_decode
;
364 ameth
->pub_encode
= pub_encode
;
365 ameth
->pub_cmp
= pub_cmp
;
366 ameth
->pub_print
= pub_print
;
367 ameth
->pkey_size
= pkey_size
;
368 ameth
->pkey_bits
= pkey_bits
;
371 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD
*ameth
,
372 int (*priv_decode
) (EVP_PKEY
*pk
,
375 int (*priv_encode
) (PKCS8_PRIV_KEY_INFO
*p8
,
377 int (*priv_print
) (BIO
*out
,
378 const EVP_PKEY
*pkey
,
382 ameth
->priv_decode
= priv_decode
;
383 ameth
->priv_encode
= priv_encode
;
384 ameth
->priv_print
= priv_print
;
387 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD
*ameth
,
388 int (*param_decode
) (EVP_PKEY
*pkey
,
389 const unsigned char **pder
,
391 int (*param_encode
) (const EVP_PKEY
*pkey
,
392 unsigned char **pder
),
393 int (*param_missing
) (const EVP_PKEY
*pk
),
394 int (*param_copy
) (EVP_PKEY
*to
,
395 const EVP_PKEY
*from
),
396 int (*param_cmp
) (const EVP_PKEY
*a
,
398 int (*param_print
) (BIO
*out
,
399 const EVP_PKEY
*pkey
,
400 int indent
, ASN1_PCTX
*pctx
))
402 ameth
->param_decode
= param_decode
;
403 ameth
->param_encode
= param_encode
;
404 ameth
->param_missing
= param_missing
;
405 ameth
->param_copy
= param_copy
;
406 ameth
->param_cmp
= param_cmp
;
407 ameth
->param_print
= param_print
;
410 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD
*ameth
,
411 void (*pkey_free
) (EVP_PKEY
*pkey
))
413 ameth
->pkey_free
= pkey_free
;
416 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD
*ameth
,
417 int (*pkey_ctrl
) (EVP_PKEY
*pkey
, int op
,
418 long arg1
, void *arg2
))
420 ameth
->pkey_ctrl
= pkey_ctrl
;
423 void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD
*ameth
,
424 int (*pkey_security_bits
) (const EVP_PKEY
427 ameth
->pkey_security_bits
= pkey_security_bits
;
430 void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD
*ameth
,
431 int (*item_verify
) (EVP_MD_CTX
*ctx
,
435 ASN1_BIT_STRING
*sig
,
437 int (*item_sign
) (EVP_MD_CTX
*ctx
,
442 ASN1_BIT_STRING
*sig
))
444 ameth
->item_sign
= item_sign
;
445 ameth
->item_verify
= item_verify
;