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448be743 DSH |
1 | /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL |
2 | * project 2006. | |
3 | */ | |
4 | /* ==================================================================== | |
5 | * Copyright (c) 2006 The OpenSSL Project. All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * | |
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 | |
17 | * distribution. | |
18 | * | |
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/)" | |
23 | * | |
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. | |
28 | * | |
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. | |
32 | * | |
33 | * 6. Redistributions of any form whatsoever must retain the following | |
34 | * acknowledgment: | |
35 | * "This product includes software developed by the OpenSSL Project | |
36 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
37 | * | |
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 | * ==================================================================== | |
51 | * | |
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). | |
55 | * | |
56 | */ | |
57 | ||
58 | #include <stdio.h> | |
59 | #include "cryptlib.h" | |
60 | #include <openssl/asn1t.h> | |
61 | #include <openssl/x509.h> | |
62 | #include <openssl/ec.h> | |
63 | #include "asn1_locl.h" | |
64 | ||
65 | extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[]; | |
66 | extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[]; | |
6f81892e | 67 | extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth; |
448be743 DSH |
68 | extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth; |
69 | ||
70 | /* Keep this sorted in type order !! */ | |
9e4d0f0b | 71 | static const EVP_PKEY_ASN1_METHOD *standard_methods[] = |
448be743 | 72 | { |
db98bbc1 | 73 | #ifndef OPENSSL_NO_RSA |
448be743 DSH |
74 | &rsa_asn1_meths[0], |
75 | &rsa_asn1_meths[1], | |
db98bbc1 DSH |
76 | #endif |
77 | #ifndef OPENSSL_NO_DH | |
6f81892e | 78 | &dh_asn1_meth, |
db98bbc1 DSH |
79 | #endif |
80 | #ifndef OPENSSL_NO_DSA | |
448be743 DSH |
81 | &dsa_asn1_meths[0], |
82 | &dsa_asn1_meths[1], | |
83 | &dsa_asn1_meths[2], | |
84 | &dsa_asn1_meths[3], | |
85 | &dsa_asn1_meths[4], | |
db98bbc1 DSH |
86 | #endif |
87 | #ifndef OPENSSL_NO_EC | |
448be743 | 88 | &eckey_asn1_meth |
db98bbc1 | 89 | #endif |
448be743 DSH |
90 | }; |
91 | ||
18e377b4 DSH |
92 | typedef int sk_cmp_fn_type(const char * const *a, const char * const *b); |
93 | static STACK *app_methods = NULL; | |
94 | ||
95 | ||
96 | ||
448be743 DSH |
97 | #ifdef TEST |
98 | void main() | |
99 | { | |
100 | int i; | |
101 | for (i = 0; | |
102 | i < sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *); | |
103 | i++) | |
6f81892e DSH |
104 | fprintf(stderr, "Number %d id=%d (%s)\n", i, |
105 | standard_methods[i]->pkey_id, | |
106 | OBJ_nid2sn(standard_methods[i]->pkey_id)); | |
448be743 DSH |
107 | } |
108 | #endif | |
109 | ||
110 | static int ameth_cmp(const EVP_PKEY_ASN1_METHOD * const *a, | |
111 | const EVP_PKEY_ASN1_METHOD * const *b) | |
112 | { | |
113 | return ((*a)->pkey_id - (*b)->pkey_id); | |
114 | } | |
115 | ||
e4263314 DSH |
116 | int EVP_PKEY_asn1_get_count(void) |
117 | { | |
118 | int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *); | |
119 | if (app_methods) | |
120 | num += sk_num(app_methods); | |
121 | return num; | |
122 | } | |
123 | ||
124 | const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx) | |
125 | { | |
126 | int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *); | |
127 | if (idx < 0) | |
128 | return NULL; | |
129 | if (idx < num) | |
130 | return standard_methods[idx]; | |
131 | idx -= num; | |
132 | return (const EVP_PKEY_ASN1_METHOD *)sk_value(app_methods, idx); | |
133 | } | |
134 | ||
18e377b4 | 135 | const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(int type) |
448be743 DSH |
136 | { |
137 | EVP_PKEY_ASN1_METHOD tmp, *t = &tmp, **ret; | |
138 | tmp.pkey_id = type; | |
18e377b4 DSH |
139 | if (app_methods) |
140 | { | |
141 | int idx; | |
86377906 DSH |
142 | idx = sk_find(app_methods, (char *)&tmp); |
143 | if (idx >= 0) | |
18e377b4 DSH |
144 | return (EVP_PKEY_ASN1_METHOD *) |
145 | sk_value(app_methods, idx); | |
146 | } | |
448be743 DSH |
147 | ret = (EVP_PKEY_ASN1_METHOD **) OBJ_bsearch((char *)&t, |
148 | (char *)standard_methods, | |
149 | sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *), | |
150 | sizeof(EVP_PKEY_ASN1_METHOD *), | |
151 | (int (*)(const void *, const void *))ameth_cmp); | |
6f81892e DSH |
152 | if (!ret || !*ret) |
153 | return NULL; | |
448be743 | 154 | if ((*ret)->pkey_flags & ASN1_PKEY_ALIAS) |
18e377b4 | 155 | return EVP_PKEY_asn1_find((*ret)->pkey_base_id); |
448be743 DSH |
156 | return *ret; |
157 | } | |
158 | ||
e4263314 DSH |
159 | const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(const char *str, int len) |
160 | { | |
161 | int i; | |
162 | const EVP_PKEY_ASN1_METHOD *ameth; | |
f5cda4cb DSH |
163 | if (len == -1) |
164 | len = strlen(str); | |
e4263314 DSH |
165 | for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) |
166 | { | |
167 | ameth = EVP_PKEY_asn1_get0(i); | |
168 | if (ameth->pkey_flags & ASN1_PKEY_ALIAS) | |
169 | continue; | |
170 | if ((strlen(ameth->pem_str) == len) && | |
171 | !strncasecmp(ameth->pem_str, str, len)) | |
172 | return ameth; | |
173 | } | |
174 | return NULL; | |
175 | } | |
176 | ||
e46691a0 | 177 | int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth) |
18e377b4 DSH |
178 | { |
179 | if (app_methods == NULL) | |
180 | { | |
181 | app_methods = sk_new((sk_cmp_fn_type *)ameth_cmp); | |
182 | if (!app_methods) | |
183 | return 0; | |
184 | } | |
185 | if (!sk_push(app_methods, (char *)ameth)) | |
186 | return 0; | |
187 | sk_sort(app_methods); | |
188 | return 1; | |
189 | } | |
190 | ||
e46691a0 DSH |
191 | int EVP_PKEY_asn1_add_alias(int to, int from) |
192 | { | |
193 | EVP_PKEY_ASN1_METHOD *ameth; | |
194 | ameth = EVP_PKEY_asn1_new(from, NULL, NULL); | |
195 | if (!ameth) | |
196 | return 0; | |
197 | ameth->pkey_base_id = to; | |
198 | ameth->pkey_flags |= ASN1_PKEY_ALIAS; | |
199 | return EVP_PKEY_asn1_add0(ameth); | |
200 | } | |
201 | ||
0b33dac3 DSH |
202 | int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id, int *ppkey_flags, |
203 | const char **pinfo, const char **ppem_str, | |
204 | const EVP_PKEY_ASN1_METHOD *ameth) | |
205 | { | |
206 | if (!ameth) | |
207 | return 0; | |
208 | if (ppkey_id) | |
209 | *ppkey_id = ameth->pkey_id; | |
210 | if (ppkey_base_id) | |
211 | *ppkey_base_id = ameth->pkey_base_id; | |
212 | if (ppkey_flags) | |
213 | *ppkey_flags = ameth->pkey_flags; | |
214 | if (pinfo) | |
215 | *pinfo = ameth->info; | |
216 | if (ppem_str) | |
217 | *ppem_str = ameth->pem_str; | |
218 | return 1; | |
219 | } | |
220 | ||
d82e2718 DSH |
221 | EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id, |
222 | const char *pem_str, const char *info) | |
18e377b4 DSH |
223 | { |
224 | EVP_PKEY_ASN1_METHOD *ameth; | |
225 | ameth = OPENSSL_malloc(sizeof(EVP_PKEY_ASN1_METHOD)); | |
226 | if (!ameth) | |
227 | return NULL; | |
228 | ||
229 | ameth->pkey_id = id; | |
230 | ameth->pkey_base_id = id; | |
231 | ameth->pkey_flags = ASN1_PKEY_DYNAMIC; | |
d82e2718 DSH |
232 | |
233 | if (info) | |
234 | { | |
235 | ameth->info = BUF_strdup(info); | |
236 | if (!ameth->info) | |
237 | goto err; | |
238 | } | |
239 | ||
240 | if (pem_str) | |
241 | { | |
242 | ameth->pem_str = BUF_strdup(pem_str); | |
243 | if (!ameth->pem_str) | |
244 | goto err; | |
245 | } | |
18e377b4 DSH |
246 | |
247 | ameth->pub_decode = 0; | |
248 | ameth->pub_encode = 0; | |
249 | ameth->pub_cmp = 0; | |
250 | ameth->pub_print = 0; | |
251 | ||
18e377b4 DSH |
252 | ameth->priv_decode = 0; |
253 | ameth->priv_encode = 0; | |
254 | ameth->priv_print = 0; | |
18e377b4 DSH |
255 | |
256 | ameth->pkey_size = 0; | |
257 | ameth->pkey_bits = 0; | |
258 | ||
259 | ameth->param_decode = 0; | |
260 | ameth->param_encode = 0; | |
261 | ameth->param_missing = 0; | |
262 | ameth->param_copy = 0; | |
263 | ameth->param_cmp = 0; | |
264 | ameth->param_print = 0; | |
265 | ||
18e377b4 DSH |
266 | ameth->pkey_free = 0; |
267 | ameth->pkey_ctrl = 0; | |
268 | ||
269 | return ameth; | |
d82e2718 DSH |
270 | |
271 | err: | |
272 | ||
273 | EVP_PKEY_asn1_free(ameth); | |
274 | return NULL; | |
275 | ||
276 | } | |
277 | ||
278 | void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth) | |
279 | { | |
280 | if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) | |
281 | { | |
282 | if (ameth->pem_str) | |
283 | OPENSSL_free(ameth->pem_str); | |
284 | if (ameth->info) | |
285 | OPENSSL_free(ameth->info); | |
286 | OPENSSL_free(ameth); | |
287 | } | |
18e377b4 DSH |
288 | } |
289 | ||
290 | void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth, | |
291 | int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub), | |
292 | int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk), | |
293 | int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b), | |
294 | int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent, | |
295 | ASN1_PCTX *pctx), | |
296 | int (*pkey_size)(const EVP_PKEY *pk), | |
297 | int (*pkey_bits)(const EVP_PKEY *pk)) | |
298 | { | |
299 | ameth->pub_decode = pub_decode; | |
300 | ameth->pub_encode = pub_encode; | |
301 | ameth->pub_cmp = pub_cmp; | |
302 | ameth->pub_print = pub_print; | |
303 | ameth->pkey_size = pkey_size; | |
304 | ameth->pkey_bits = pkey_bits; | |
305 | } | |
306 | ||
307 | void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth, | |
308 | int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf), | |
309 | int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk), | |
310 | int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent, | |
311 | ASN1_PCTX *pctx)) | |
312 | { | |
313 | ameth->priv_decode = priv_decode; | |
314 | ameth->priv_encode = priv_encode; | |
315 | ameth->priv_print = priv_print; | |
316 | } | |
317 | ||
318 | void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth, | |
db98bbc1 DSH |
319 | int (*param_decode)(EVP_PKEY *pkey, |
320 | const unsigned char **pder, int derlen), | |
321 | int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder), | |
18e377b4 DSH |
322 | int (*param_missing)(const EVP_PKEY *pk), |
323 | int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from), | |
324 | int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b), | |
325 | int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent, | |
326 | ASN1_PCTX *pctx)) | |
327 | { | |
328 | ameth->param_decode = param_decode; | |
329 | ameth->param_encode = param_encode; | |
330 | ameth->param_missing = param_missing; | |
331 | ameth->param_copy = param_copy; | |
332 | ameth->param_cmp = param_cmp; | |
333 | ameth->param_print = param_print; | |
334 | } | |
335 | ||
336 | void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth, | |
337 | void (*pkey_free)(EVP_PKEY *pkey)) | |
338 | { | |
339 | ameth->pkey_free = pkey_free; | |
340 | } | |
341 | ||
342 | void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth, | |
343 | void (*pkey_ctrl)(EVP_PKEY *pkey, int op, | |
344 | long arg1, void *arg2)) | |
345 | { | |
346 | ameth->pkey_ctrl = pkey_ctrl; | |
347 | } |