1 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4 /* ====================================================================
5 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * licensing@OpenSSL.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
52 * This product includes cryptographic software written by Eric Young
53 * (eay@cryptsoft.com). This product includes software written by Tim
54 * Hudson (tjh@cryptsoft.com).
60 #include <openssl/asn1t.h>
61 #include <openssl/x509.h>
62 #ifndef OPENSSL_NO_ENGINE
63 #include <openssl/engine.h>
65 #include "asn1_locl.h"
67 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[];
68 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[];
69 extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth;
70 extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth;
71 extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth;
72 extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth;
73 extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth;
75 /* Keep this sorted in type order !! */
76 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;
113 i < sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
115 fprintf(stderr, "Number %d id=%d (%s)\n", i,
116 standard_methods[i]->pkey_id,
117 OBJ_nid2sn(standard_methods[i]->pkey_id));
121 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
122 const EVP_PKEY_ASN1_METHOD *, ameth);
124 static int ameth_cmp(const EVP_PKEY_ASN1_METHOD * const *a,
125 const EVP_PKEY_ASN1_METHOD * const *b)
127 return ((*a)->pkey_id - (*b)->pkey_id);
130 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
131 const EVP_PKEY_ASN1_METHOD *, ameth);
133 int EVP_PKEY_asn1_get_count(void)
135 int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
137 num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
141 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
143 int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
147 return standard_methods[idx];
149 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
152 static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
154 EVP_PKEY_ASN1_METHOD tmp;
155 const EVP_PKEY_ASN1_METHOD *t = &tmp, **ret;
160 idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
162 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
164 ret = OBJ_bsearch_ameth(&t, standard_methods,
165 sizeof(standard_methods)
166 /sizeof(EVP_PKEY_ASN1_METHOD *));
172 /* Find an implementation of an ASN1 algorithm. If 'pe' is not NULL
173 * also search through engines and set *pe to a functional reference
174 * to the engine implementing 'type' or NULL if no engine implements
178 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type)
180 const EVP_PKEY_ASN1_METHOD *t;
184 t = pkey_asn1_find(type);
185 if (!t || !(t->pkey_flags & ASN1_PKEY_ALIAS))
187 type = t->pkey_base_id;
191 #ifndef OPENSSL_NO_ENGINE
193 /* type will contain the final unaliased type */
194 e = ENGINE_get_pkey_asn1_meth_engine(type);
198 return ENGINE_get_pkey_asn1_meth(e, type);
206 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
207 const char *str, int len)
210 const EVP_PKEY_ASN1_METHOD *ameth;
215 #ifndef OPENSSL_NO_ENGINE
217 ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
220 /* Convert structural into
221 * functional reference
232 for (i = 0; i < EVP_PKEY_asn1_get_count(); i++)
234 ameth = EVP_PKEY_asn1_get0(i);
235 if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
237 if (((int)strlen(ameth->pem_str) == len) &&
238 !strncasecmp(ameth->pem_str, str, len))
244 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
246 if (app_methods == NULL)
248 app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
252 if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
254 sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
258 int EVP_PKEY_asn1_add_alias(int to, int from)
260 EVP_PKEY_ASN1_METHOD *ameth;
261 ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
264 ameth->pkey_base_id = to;
265 if (!EVP_PKEY_asn1_add0(ameth))
267 EVP_PKEY_asn1_free(ameth);
273 int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id, int *ppkey_flags,
274 const char **pinfo, const char **ppem_str,
275 const EVP_PKEY_ASN1_METHOD *ameth)
280 *ppkey_id = ameth->pkey_id;
282 *ppkey_base_id = ameth->pkey_base_id;
284 *ppkey_flags = ameth->pkey_flags;
286 *pinfo = ameth->info;
288 *ppem_str = ameth->pem_str;
292 const EVP_PKEY_ASN1_METHOD* EVP_PKEY_get0_asn1(EVP_PKEY *pkey)
297 EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id, int flags,
298 const char *pem_str, const char *info)
300 EVP_PKEY_ASN1_METHOD *ameth;
301 ameth = OPENSSL_malloc(sizeof(EVP_PKEY_ASN1_METHOD));
305 memset(ameth, 0, sizeof(EVP_PKEY_ASN1_METHOD));
308 ameth->pkey_base_id = id;
309 ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC;
313 ameth->info = BUF_strdup(info);
322 ameth->pem_str = BUF_strdup(pem_str);
327 ameth->pem_str = NULL;
329 ameth->pub_decode = 0;
330 ameth->pub_encode = 0;
332 ameth->pub_print = 0;
334 ameth->priv_decode = 0;
335 ameth->priv_encode = 0;
336 ameth->priv_print = 0;
338 ameth->old_priv_encode = 0;
339 ameth->old_priv_decode = 0;
341 ameth->item_verify = 0;
342 ameth->item_sign = 0;
344 ameth->pkey_size = 0;
345 ameth->pkey_bits = 0;
347 ameth->param_decode = 0;
348 ameth->param_encode = 0;
349 ameth->param_missing = 0;
350 ameth->param_copy = 0;
351 ameth->param_cmp = 0;
352 ameth->param_print = 0;
354 ameth->pkey_free = 0;
355 ameth->pkey_ctrl = 0;
361 EVP_PKEY_asn1_free(ameth);
366 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
367 const EVP_PKEY_ASN1_METHOD *src)
370 dst->pub_decode = src->pub_decode;
371 dst->pub_encode = src->pub_encode;
372 dst->pub_cmp = src->pub_cmp;
373 dst->pub_print = src->pub_print;
375 dst->priv_decode = src->priv_decode;
376 dst->priv_encode = src->priv_encode;
377 dst->priv_print = src->priv_print;
379 dst->old_priv_encode = src->old_priv_encode;
380 dst->old_priv_decode = src->old_priv_decode;
382 dst->pkey_size = src->pkey_size;
383 dst->pkey_bits = src->pkey_bits;
385 dst->param_decode = src->param_decode;
386 dst->param_encode = src->param_encode;
387 dst->param_missing = src->param_missing;
388 dst->param_copy = src->param_copy;
389 dst->param_cmp = src->param_cmp;
390 dst->param_print = src->param_print;
392 dst->pkey_free = src->pkey_free;
393 dst->pkey_ctrl = src->pkey_ctrl;
395 dst->item_sign = src->item_sign;
396 dst->item_verify = src->item_verify;
400 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
402 if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC))
405 OPENSSL_free(ameth->pem_str);
407 OPENSSL_free(ameth->info);
412 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
413 int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub),
414 int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk),
415 int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
416 int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent,
418 int (*pkey_size)(const EVP_PKEY *pk),
419 int (*pkey_bits)(const EVP_PKEY *pk))
421 ameth->pub_decode = pub_decode;
422 ameth->pub_encode = pub_encode;
423 ameth->pub_cmp = pub_cmp;
424 ameth->pub_print = pub_print;
425 ameth->pkey_size = pkey_size;
426 ameth->pkey_bits = pkey_bits;
429 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
430 int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf),
431 int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk),
432 int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
435 ameth->priv_decode = priv_decode;
436 ameth->priv_encode = priv_encode;
437 ameth->priv_print = priv_print;
440 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
441 int (*param_decode)(EVP_PKEY *pkey,
442 const unsigned char **pder, int derlen),
443 int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder),
444 int (*param_missing)(const EVP_PKEY *pk),
445 int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from),
446 int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
447 int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
450 ameth->param_decode = param_decode;
451 ameth->param_encode = param_encode;
452 ameth->param_missing = param_missing;
453 ameth->param_copy = param_copy;
454 ameth->param_cmp = param_cmp;
455 ameth->param_print = param_print;
458 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
459 void (*pkey_free)(EVP_PKEY *pkey))
461 ameth->pkey_free = pkey_free;
464 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
465 int (*pkey_ctrl)(EVP_PKEY *pkey, int op,
466 long arg1, void *arg2))
468 ameth->pkey_ctrl = pkey_ctrl;
471 void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
472 int (*pkey_security_bits)(const EVP_PKEY *pk))
474 ameth->pkey_security_bits = pkey_security_bits;