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 #ifndef OPENSSL_NO_ENGINE
64 # include <openssl/engine.h>
66 #include "internal/asn1_int.h"
68 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths
[];
69 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths
[];
70 extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth
;
71 extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth
;
72 extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth
;
73 extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth
;
74 extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth
;
76 /* Keep this sorted in type order !! */
77 static const EVP_PKEY_ASN1_METHOD
*standard_methods
[] = {
78 #ifndef OPENSSL_NO_RSA
85 #ifndef OPENSSL_NO_DSA
102 typedef int sk_cmp_fn_type(const char *const *a
, const char *const *b
);
103 DECLARE_STACK_OF(EVP_PKEY_ASN1_METHOD
)
104 static STACK_OF(EVP_PKEY_ASN1_METHOD
) *app_methods
= NULL
;
110 for (i
= 0; i
< OSSL_NELEM(standard_methods
); i
++)
111 fprintf(stderr
, "Number %d id=%d (%s)\n", i
,
112 standard_methods
[i
]->pkey_id
,
113 OBJ_nid2sn(standard_methods
[i
]->pkey_id
));
117 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD
*,
118 const EVP_PKEY_ASN1_METHOD
*, ameth
);
120 static int ameth_cmp(const EVP_PKEY_ASN1_METHOD
*const *a
,
121 const EVP_PKEY_ASN1_METHOD
*const *b
)
123 return ((*a
)->pkey_id
- (*b
)->pkey_id
);
126 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD
*,
127 const EVP_PKEY_ASN1_METHOD
*, ameth
);
129 int EVP_PKEY_asn1_get_count(void)
131 int num
= OSSL_NELEM(standard_methods
);
133 num
+= sk_EVP_PKEY_ASN1_METHOD_num(app_methods
);
137 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_get0(int idx
)
139 int num
= OSSL_NELEM(standard_methods
);
143 return standard_methods
[idx
];
145 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods
, idx
);
148 static const EVP_PKEY_ASN1_METHOD
*pkey_asn1_find(int type
)
150 EVP_PKEY_ASN1_METHOD tmp
;
151 const EVP_PKEY_ASN1_METHOD
*t
= &tmp
, **ret
;
155 idx
= sk_EVP_PKEY_ASN1_METHOD_find(app_methods
, &tmp
);
157 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods
, idx
);
159 ret
= OBJ_bsearch_ameth(&t
, standard_methods
, OSSL_NELEM(standard_methods
));
166 * Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also
167 * search through engines and set *pe to a functional reference to the engine
168 * implementing 'type' or NULL if no engine implements it.
171 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_find(ENGINE
**pe
, int type
)
173 const EVP_PKEY_ASN1_METHOD
*t
;
176 t
= pkey_asn1_find(type
);
177 if (!t
|| !(t
->pkey_flags
& ASN1_PKEY_ALIAS
))
179 type
= t
->pkey_base_id
;
182 #ifndef OPENSSL_NO_ENGINE
184 /* type will contain the final unaliased type */
185 e
= ENGINE_get_pkey_asn1_meth_engine(type
);
188 return ENGINE_get_pkey_asn1_meth(e
, type
);
196 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_find_str(ENGINE
**pe
,
197 const char *str
, int len
)
200 const EVP_PKEY_ASN1_METHOD
*ameth
;
204 #ifndef OPENSSL_NO_ENGINE
206 ameth
= ENGINE_pkey_asn1_find_str(&e
, str
, len
);
209 * Convert structural into functional reference
220 for (i
= 0; i
< EVP_PKEY_asn1_get_count(); i
++) {
221 ameth
= EVP_PKEY_asn1_get0(i
);
222 if (ameth
->pkey_flags
& ASN1_PKEY_ALIAS
)
224 if (((int)strlen(ameth
->pem_str
) == len
)
225 && (strncasecmp(ameth
->pem_str
, str
, len
) == 0))
231 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD
*ameth
)
233 if (app_methods
== NULL
) {
234 app_methods
= sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp
);
238 if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods
, ameth
))
240 sk_EVP_PKEY_ASN1_METHOD_sort(app_methods
);
244 int EVP_PKEY_asn1_add_alias(int to
, int from
)
246 EVP_PKEY_ASN1_METHOD
*ameth
;
247 ameth
= EVP_PKEY_asn1_new(from
, ASN1_PKEY_ALIAS
, NULL
, NULL
);
250 ameth
->pkey_base_id
= to
;
251 if (!EVP_PKEY_asn1_add0(ameth
)) {
252 EVP_PKEY_asn1_free(ameth
);
258 int EVP_PKEY_asn1_get0_info(int *ppkey_id
, int *ppkey_base_id
,
259 int *ppkey_flags
, const char **pinfo
,
260 const char **ppem_str
,
261 const EVP_PKEY_ASN1_METHOD
*ameth
)
266 *ppkey_id
= ameth
->pkey_id
;
268 *ppkey_base_id
= ameth
->pkey_base_id
;
270 *ppkey_flags
= ameth
->pkey_flags
;
272 *pinfo
= ameth
->info
;
274 *ppem_str
= ameth
->pem_str
;
278 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_get0_asn1(EVP_PKEY
*pkey
)
283 EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_new(int id
, int flags
,
284 const char *pem_str
, const char *info
)
286 EVP_PKEY_ASN1_METHOD
*ameth
= OPENSSL_zalloc(sizeof(*ameth
));
292 ameth
->pkey_base_id
= id
;
293 ameth
->pkey_flags
= flags
| ASN1_PKEY_DYNAMIC
;
296 ameth
->info
= BUF_strdup(info
);
303 ameth
->pem_str
= BUF_strdup(pem_str
);
307 ameth
->pem_str
= NULL
;
309 ameth
->pub_decode
= 0;
310 ameth
->pub_encode
= 0;
312 ameth
->pub_print
= 0;
314 ameth
->priv_decode
= 0;
315 ameth
->priv_encode
= 0;
316 ameth
->priv_print
= 0;
318 ameth
->old_priv_encode
= 0;
319 ameth
->old_priv_decode
= 0;
321 ameth
->item_verify
= 0;
322 ameth
->item_sign
= 0;
324 ameth
->pkey_size
= 0;
325 ameth
->pkey_bits
= 0;
327 ameth
->param_decode
= 0;
328 ameth
->param_encode
= 0;
329 ameth
->param_missing
= 0;
330 ameth
->param_copy
= 0;
331 ameth
->param_cmp
= 0;
332 ameth
->param_print
= 0;
334 ameth
->pkey_free
= 0;
335 ameth
->pkey_ctrl
= 0;
341 EVP_PKEY_asn1_free(ameth
);
346 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD
*dst
,
347 const EVP_PKEY_ASN1_METHOD
*src
)
350 dst
->pub_decode
= src
->pub_decode
;
351 dst
->pub_encode
= src
->pub_encode
;
352 dst
->pub_cmp
= src
->pub_cmp
;
353 dst
->pub_print
= src
->pub_print
;
355 dst
->priv_decode
= src
->priv_decode
;
356 dst
->priv_encode
= src
->priv_encode
;
357 dst
->priv_print
= src
->priv_print
;
359 dst
->old_priv_encode
= src
->old_priv_encode
;
360 dst
->old_priv_decode
= src
->old_priv_decode
;
362 dst
->pkey_size
= src
->pkey_size
;
363 dst
->pkey_bits
= src
->pkey_bits
;
365 dst
->param_decode
= src
->param_decode
;
366 dst
->param_encode
= src
->param_encode
;
367 dst
->param_missing
= src
->param_missing
;
368 dst
->param_copy
= src
->param_copy
;
369 dst
->param_cmp
= src
->param_cmp
;
370 dst
->param_print
= src
->param_print
;
372 dst
->pkey_free
= src
->pkey_free
;
373 dst
->pkey_ctrl
= src
->pkey_ctrl
;
375 dst
->item_sign
= src
->item_sign
;
376 dst
->item_verify
= src
->item_verify
;
380 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD
*ameth
)
382 if (ameth
&& (ameth
->pkey_flags
& ASN1_PKEY_DYNAMIC
)) {
383 OPENSSL_free(ameth
->pem_str
);
384 OPENSSL_free(ameth
->info
);
389 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD
*ameth
,
390 int (*pub_decode
) (EVP_PKEY
*pk
,
392 int (*pub_encode
) (X509_PUBKEY
*pub
,
394 int (*pub_cmp
) (const EVP_PKEY
*a
,
396 int (*pub_print
) (BIO
*out
,
397 const EVP_PKEY
*pkey
,
398 int indent
, ASN1_PCTX
*pctx
),
399 int (*pkey_size
) (const EVP_PKEY
*pk
),
400 int (*pkey_bits
) (const EVP_PKEY
*pk
))
402 ameth
->pub_decode
= pub_decode
;
403 ameth
->pub_encode
= pub_encode
;
404 ameth
->pub_cmp
= pub_cmp
;
405 ameth
->pub_print
= pub_print
;
406 ameth
->pkey_size
= pkey_size
;
407 ameth
->pkey_bits
= pkey_bits
;
410 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD
*ameth
,
411 int (*priv_decode
) (EVP_PKEY
*pk
,
414 int (*priv_encode
) (PKCS8_PRIV_KEY_INFO
*p8
,
416 int (*priv_print
) (BIO
*out
,
417 const EVP_PKEY
*pkey
,
421 ameth
->priv_decode
= priv_decode
;
422 ameth
->priv_encode
= priv_encode
;
423 ameth
->priv_print
= priv_print
;
426 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD
*ameth
,
427 int (*param_decode
) (EVP_PKEY
*pkey
,
428 const unsigned char **pder
,
430 int (*param_encode
) (const EVP_PKEY
*pkey
,
431 unsigned char **pder
),
432 int (*param_missing
) (const EVP_PKEY
*pk
),
433 int (*param_copy
) (EVP_PKEY
*to
,
434 const EVP_PKEY
*from
),
435 int (*param_cmp
) (const EVP_PKEY
*a
,
437 int (*param_print
) (BIO
*out
,
438 const EVP_PKEY
*pkey
,
439 int indent
, ASN1_PCTX
*pctx
))
441 ameth
->param_decode
= param_decode
;
442 ameth
->param_encode
= param_encode
;
443 ameth
->param_missing
= param_missing
;
444 ameth
->param_copy
= param_copy
;
445 ameth
->param_cmp
= param_cmp
;
446 ameth
->param_print
= param_print
;
449 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD
*ameth
,
450 void (*pkey_free
) (EVP_PKEY
*pkey
))
452 ameth
->pkey_free
= pkey_free
;
455 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD
*ameth
,
456 int (*pkey_ctrl
) (EVP_PKEY
*pkey
, int op
,
457 long arg1
, void *arg2
))
459 ameth
->pkey_ctrl
= pkey_ctrl
;
462 void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD
*ameth
,
463 int (*pkey_security_bits
) (const EVP_PKEY
466 ameth
->pkey_security_bits
= pkey_security_bits
;
469 void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD
*ameth
,
470 int (*item_verify
) (EVP_MD_CTX
*ctx
,
474 ASN1_BIT_STRING
*sig
,
476 int (*item_sign
) (EVP_MD_CTX
*ctx
,
481 ASN1_BIT_STRING
*sig
))
483 ameth
->item_sign
= item_sign
;
484 ameth
->item_verify
= item_verify
;