1 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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 eckey_asn1_meth;
71 extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth;
73 /* Keep this sorted in type order !! */
74 static const EVP_PKEY_ASN1_METHOD *standard_methods[] =
76 #ifndef OPENSSL_NO_RSA
83 #ifndef OPENSSL_NO_DSA
96 typedef int sk_cmp_fn_type(const char * const *a, const char * const *b);
97 static STACK *app_methods = NULL;
106 i < sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
108 fprintf(stderr, "Number %d id=%d (%s)\n", i,
109 standard_methods[i]->pkey_id,
110 OBJ_nid2sn(standard_methods[i]->pkey_id));
114 static int ameth_cmp(const EVP_PKEY_ASN1_METHOD * const *a,
115 const EVP_PKEY_ASN1_METHOD * const *b)
117 return ((*a)->pkey_id - (*b)->pkey_id);
120 int EVP_PKEY_asn1_get_count(void)
122 int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
124 num += sk_num(app_methods);
128 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
130 int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
134 return standard_methods[idx];
136 return (const EVP_PKEY_ASN1_METHOD *)sk_value(app_methods, idx);
139 static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
141 EVP_PKEY_ASN1_METHOD tmp, *t = &tmp, **ret;
146 idx = sk_find(app_methods, (char *)&tmp);
148 return (EVP_PKEY_ASN1_METHOD *)
149 sk_value(app_methods, idx);
151 ret = (EVP_PKEY_ASN1_METHOD **) OBJ_bsearch((char *)&t,
152 (char *)standard_methods,
153 sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *),
154 sizeof(EVP_PKEY_ASN1_METHOD *),
155 (int (*)(const void *, const void *))ameth_cmp);
161 /* Find an implementation of an ASN1 algorithm. If 'pe' is not NULL
162 * also search through engines and set *pe to a functional reference
163 * to the engine implementing 'type' or NULL if no engine implements
167 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type)
169 const EVP_PKEY_ASN1_METHOD *t;
174 t = pkey_asn1_find(type);
175 if (!t || !(t->pkey_flags & ASN1_PKEY_ALIAS))
177 type = t->pkey_base_id;
181 #ifndef OPENSSL_NO_ENGINE
182 /* type will contain the final unaliased type */
183 e = ENGINE_get_pkey_asn1_meth_engine(type);
187 return ENGINE_get_pkey_asn1_meth(e, type);
195 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
196 const char *str, int len)
199 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
210 * functional reference
221 for (i = 0; i < EVP_PKEY_asn1_get_count(); i++)
223 ameth = EVP_PKEY_asn1_get0(i);
224 if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
226 if (((int)strlen(ameth->pem_str) == len) &&
227 !strncasecmp(ameth->pem_str, str, len))
233 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
235 if (app_methods == NULL)
237 app_methods = sk_new((sk_cmp_fn_type *)ameth_cmp);
241 if (!sk_push(app_methods, (char *)ameth))
243 sk_sort(app_methods);
247 int EVP_PKEY_asn1_add_alias(int to, int from)
249 EVP_PKEY_ASN1_METHOD *ameth;
250 ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
253 ameth->pkey_base_id = to;
254 return EVP_PKEY_asn1_add0(ameth);
257 int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id, int *ppkey_flags,
258 const char **pinfo, const char **ppem_str,
259 const EVP_PKEY_ASN1_METHOD *ameth)
264 *ppkey_id = ameth->pkey_id;
266 *ppkey_base_id = ameth->pkey_base_id;
268 *ppkey_flags = ameth->pkey_flags;
270 *pinfo = ameth->info;
272 *ppem_str = ameth->pem_str;
276 const EVP_PKEY_ASN1_METHOD* EVP_PKEY_get0_asn1(EVP_PKEY *pkey)
281 EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id, int flags,
282 const char *pem_str, const char *info)
284 EVP_PKEY_ASN1_METHOD *ameth;
285 ameth = OPENSSL_malloc(sizeof(EVP_PKEY_ASN1_METHOD));
290 ameth->pkey_base_id = id;
291 ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC;
295 ameth->info = BUF_strdup(info);
302 ameth->pem_str = BUF_strdup(pem_str);
307 ameth->pub_decode = 0;
308 ameth->pub_encode = 0;
310 ameth->pub_print = 0;
312 ameth->priv_decode = 0;
313 ameth->priv_encode = 0;
314 ameth->priv_print = 0;
316 ameth->old_priv_encode = 0;
317 ameth->old_priv_decode = 0;
319 ameth->pkey_size = 0;
320 ameth->pkey_bits = 0;
322 ameth->param_decode = 0;
323 ameth->param_encode = 0;
324 ameth->param_missing = 0;
325 ameth->param_copy = 0;
326 ameth->param_cmp = 0;
327 ameth->param_print = 0;
329 ameth->pkey_free = 0;
330 ameth->pkey_ctrl = 0;
336 EVP_PKEY_asn1_free(ameth);
341 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
342 const EVP_PKEY_ASN1_METHOD *src)
345 dst->pub_decode = src->pub_decode;
346 dst->pub_encode = src->pub_encode;
347 dst->pub_cmp = src->pub_cmp;
348 dst->pub_print = src->pub_print;
350 dst->priv_decode = src->priv_decode;
351 dst->priv_encode = src->priv_encode;
352 dst->priv_print = src->priv_print;
354 dst->old_priv_encode = src->old_priv_encode;
355 dst->old_priv_decode = src->old_priv_decode;
357 dst->pkey_size = src->pkey_size;
358 dst->pkey_bits = src->pkey_bits;
360 dst->param_decode = src->param_decode;
361 dst->param_encode = src->param_encode;
362 dst->param_missing = src->param_missing;
363 dst->param_copy = src->param_copy;
364 dst->param_cmp = src->param_cmp;
365 dst->param_print = src->param_print;
367 dst->pkey_free = src->pkey_free;
368 dst->pkey_ctrl = src->pkey_ctrl;
372 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
374 if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC))
377 OPENSSL_free(ameth->pem_str);
379 OPENSSL_free(ameth->info);
384 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
385 int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub),
386 int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk),
387 int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
388 int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent,
390 int (*pkey_size)(const EVP_PKEY *pk),
391 int (*pkey_bits)(const EVP_PKEY *pk))
393 ameth->pub_decode = pub_decode;
394 ameth->pub_encode = pub_encode;
395 ameth->pub_cmp = pub_cmp;
396 ameth->pub_print = pub_print;
397 ameth->pkey_size = pkey_size;
398 ameth->pkey_bits = pkey_bits;
401 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
402 int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf),
403 int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk),
404 int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
407 ameth->priv_decode = priv_decode;
408 ameth->priv_encode = priv_encode;
409 ameth->priv_print = priv_print;
412 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
413 int (*param_decode)(EVP_PKEY *pkey,
414 const unsigned char **pder, int derlen),
415 int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder),
416 int (*param_missing)(const EVP_PKEY *pk),
417 int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from),
418 int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
419 int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
422 ameth->param_decode = param_decode;
423 ameth->param_encode = param_encode;
424 ameth->param_missing = param_missing;
425 ameth->param_copy = param_copy;
426 ameth->param_cmp = param_cmp;
427 ameth->param_print = param_print;
430 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
431 void (*pkey_free)(EVP_PKEY *pkey))
433 ameth->pkey_free = pkey_free;
436 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
437 int (*pkey_ctrl)(EVP_PKEY *pkey, int op,
438 long arg1, void *arg2))
440 ameth->pkey_ctrl = pkey_ctrl;