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authorcvs2svn <admin@example.com>2001-04-23 15:30:26 +0000
committercvs2svn <admin@example.com>2001-04-23 15:30:26 +0000
commit5c517720d5b21a720e400586177c050d4bc95721 (patch)
tree34ec35b1061b27f8770c5ac5ee02aad558cbfc90 /src/lib/libcrypto/evp/evp_pkey.c
parentd2092adc32c6de492232ba39518f9091db6bc67f (diff)
downloadopenbsd-OPENBSD_2_9_BASE.tar.gz
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This commit was manufactured by cvs2git to create tag 'OPENBSD_2_9_BASE'.OPENBSD_2_9_BASE
Diffstat (limited to 'src/lib/libcrypto/evp/evp_pkey.c')
-rw-r--r--src/lib/libcrypto/evp/evp_pkey.c408
1 files changed, 0 insertions, 408 deletions
diff --git a/src/lib/libcrypto/evp/evp_pkey.c b/src/lib/libcrypto/evp/evp_pkey.c
deleted file mode 100644
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--- a/src/lib/libcrypto/evp/evp_pkey.c
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1/* evp_pkey.c */
2/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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
18 * distribution.
19 *
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/)"
24 *
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.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58
59#include <stdio.h>
60#include <stdlib.h>
61#include "cryptlib.h"
62#include <openssl/x509.h>
63#include <openssl/rand.h>
64
65static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8inf, EVP_PKEY *pkey);
66
67/* Extract a private key from a PKCS8 structure */
68
69EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
70{
71 EVP_PKEY *pkey = NULL;
72#ifndef NO_RSA
73 RSA *rsa = NULL;
74#endif
75#ifndef NO_DSA
76 DSA *dsa = NULL;
77 ASN1_INTEGER *privkey;
78 ASN1_TYPE *t1, *t2, *param = NULL;
79 STACK_OF(ASN1_TYPE) *ndsa = NULL;
80 BN_CTX *ctx = NULL;
81 int plen;
82#endif
83 X509_ALGOR *a;
84 unsigned char *p;
85 int pkeylen;
86 char obj_tmp[80];
87
88 if(p8->pkey->type == V_ASN1_OCTET_STRING) {
89 p8->broken = PKCS8_OK;
90 p = p8->pkey->value.octet_string->data;
91 pkeylen = p8->pkey->value.octet_string->length;
92 } else {
93 p8->broken = PKCS8_NO_OCTET;
94 p = p8->pkey->value.sequence->data;
95 pkeylen = p8->pkey->value.sequence->length;
96 }
97 if (!(pkey = EVP_PKEY_new())) {
98 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
99 return NULL;
100 }
101 a = p8->pkeyalg;
102 switch (OBJ_obj2nid(a->algorithm))
103 {
104#ifndef NO_RSA
105 case NID_rsaEncryption:
106 if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
107 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
108 return NULL;
109 }
110 EVP_PKEY_assign_RSA (pkey, rsa);
111 break;
112#endif
113#ifndef NO_DSA
114 case NID_dsa:
115 /* PKCS#8 DSA is weird: you just get a private key integer
116 * and parameters in the AlgorithmIdentifier the pubkey must
117 * be recalculated.
118 */
119
120 /* Check for broken DSA PKCS#8, UGH! */
121 if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
122 if(!(ndsa = ASN1_seq_unpack_ASN1_TYPE(p, pkeylen,
123 d2i_ASN1_TYPE,
124 ASN1_TYPE_free))) {
125 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
126 goto dsaerr;
127 }
128 if(sk_ASN1_TYPE_num(ndsa) != 2 ) {
129 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
130 goto dsaerr;
131 }
132 /* Handle Two broken types:
133 * SEQUENCE {parameters, priv_key}
134 * SEQUENCE {pub_key, priv_key}
135 */
136
137 t1 = sk_ASN1_TYPE_value(ndsa, 0);
138 t2 = sk_ASN1_TYPE_value(ndsa, 1);
139 if(t1->type == V_ASN1_SEQUENCE) {
140 p8->broken = PKCS8_EMBEDDED_PARAM;
141 param = t1;
142 } else if(a->parameter->type == V_ASN1_SEQUENCE) {
143 p8->broken = PKCS8_NS_DB;
144 param = a->parameter;
145 } else {
146 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
147 goto dsaerr;
148 }
149
150 if(t2->type != V_ASN1_INTEGER) {
151 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
152 goto dsaerr;
153 }
154 privkey = t2->value.integer;
155 } else {
156 if (!(privkey=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
157 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
158 goto dsaerr;
159 }
160 param = p8->pkeyalg->parameter;
161 }
162 if (!param || (param->type != V_ASN1_SEQUENCE)) {
163 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
164 goto dsaerr;
165 }
166 p = param->value.sequence->data;
167 plen = param->value.sequence->length;
168 if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
169 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
170 goto dsaerr;
171 }
172 /* We have parameters now set private key */
173 if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) {
174 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
175 goto dsaerr;
176 }
177 /* Calculate public key (ouch!) */
178 if (!(dsa->pub_key = BN_new())) {
179 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
180 goto dsaerr;
181 }
182 if (!(ctx = BN_CTX_new())) {
183 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
184 goto dsaerr;
185 }
186
187 if (!BN_mod_exp(dsa->pub_key, dsa->g,
188 dsa->priv_key, dsa->p, ctx)) {
189
190 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
191 goto dsaerr;
192 }
193
194 EVP_PKEY_assign_DSA(pkey, dsa);
195 BN_CTX_free (ctx);
196 if(ndsa) sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
197 else ASN1_INTEGER_free(privkey);
198 break;
199 dsaerr:
200 BN_CTX_free (ctx);
201 sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
202 DSA_free(dsa);
203 EVP_PKEY_free(pkey);
204 return NULL;
205 break;
206#endif
207 default:
208 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
209 if (!a->algorithm) strcpy (obj_tmp, "NULL");
210 else i2t_ASN1_OBJECT(obj_tmp, 80, a->algorithm);
211 ERR_add_error_data(2, "TYPE=", obj_tmp);
212 EVP_PKEY_free (pkey);
213 return NULL;
214 }
215 return pkey;
216}
217
218PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
219{
220 return EVP_PKEY2PKCS8_broken(pkey, PKCS8_OK);
221}
222
223/* Turn a private key into a PKCS8 structure */
224
225PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8_broken(EVP_PKEY *pkey, int broken)
226{
227 PKCS8_PRIV_KEY_INFO *p8;
228
229 if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
230 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
231 return NULL;
232 }
233 p8->broken = broken;
234 ASN1_INTEGER_set (p8->version, 0);
235 if (!(p8->pkeyalg->parameter = ASN1_TYPE_new ())) {
236 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
237 PKCS8_PRIV_KEY_INFO_free (p8);
238 return NULL;
239 }
240 p8->pkey->type = V_ASN1_OCTET_STRING;
241 switch (EVP_PKEY_type(pkey->type)) {
242#ifndef NO_RSA
243 case EVP_PKEY_RSA:
244
245 if(p8->broken == PKCS8_NO_OCTET) p8->pkey->type = V_ASN1_SEQUENCE;
246
247 p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
248 p8->pkeyalg->parameter->type = V_ASN1_NULL;
249 if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
250 &p8->pkey->value.octet_string)) {
251 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
252 PKCS8_PRIV_KEY_INFO_free (p8);
253 return NULL;
254 }
255 break;
256#endif
257#ifndef NO_DSA
258 case EVP_PKEY_DSA:
259 if(!dsa_pkey2pkcs8(p8, pkey)) {
260 PKCS8_PRIV_KEY_INFO_free (p8);
261 return NULL;
262 }
263
264 break;
265#endif
266 default:
267 EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
268 PKCS8_PRIV_KEY_INFO_free (p8);
269 return NULL;
270 }
271 RAND_add(p8->pkey->value.octet_string->data,
272 p8->pkey->value.octet_string->length, 0);
273 return p8;
274}
275
276PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
277{
278 switch (broken) {
279
280 case PKCS8_OK:
281 p8->broken = PKCS8_OK;
282 return p8;
283 break;
284
285 case PKCS8_NO_OCTET:
286 p8->broken = PKCS8_NO_OCTET;
287 p8->pkey->type = V_ASN1_SEQUENCE;
288 return p8;
289 break;
290
291 default:
292 EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
293 return NULL;
294 break;
295
296 }
297}
298
299#ifndef NO_DSA
300static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
301{
302 ASN1_STRING *params;
303 ASN1_INTEGER *prkey;
304 ASN1_TYPE *ttmp;
305 STACK_OF(ASN1_TYPE) *ndsa;
306 unsigned char *p, *q;
307 int len;
308
309 p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
310 len = i2d_DSAparams (pkey->pkey.dsa, NULL);
311 if (!(p = OPENSSL_malloc(len))) {
312 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
313 PKCS8_PRIV_KEY_INFO_free (p8);
314 return 0;
315 }
316 q = p;
317 i2d_DSAparams (pkey->pkey.dsa, &q);
318 params = ASN1_STRING_new();
319 ASN1_STRING_set(params, p, len);
320 OPENSSL_free(p);
321 /* Get private key into integer */
322 if (!(prkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
323 EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
324 return 0;
325 }
326
327 switch(p8->broken) {
328
329 case PKCS8_OK:
330 case PKCS8_NO_OCTET:
331
332 if (!ASN1_pack_string((char *)prkey, i2d_ASN1_INTEGER,
333 &p8->pkey->value.octet_string)) {
334 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
335 M_ASN1_INTEGER_free (prkey);
336 return 0;
337 }
338
339 M_ASN1_INTEGER_free (prkey);
340 p8->pkeyalg->parameter->value.sequence = params;
341 p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
342
343 break;
344
345 case PKCS8_NS_DB:
346
347 p8->pkeyalg->parameter->value.sequence = params;
348 p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
349 ndsa = sk_ASN1_TYPE_new_null();
350 ttmp = ASN1_TYPE_new();
351 if (!(ttmp->value.integer = BN_to_ASN1_INTEGER (pkey->pkey.dsa->pub_key, NULL))) {
352 EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
353 PKCS8_PRIV_KEY_INFO_free(p8);
354 return 0;
355 }
356 ttmp->type = V_ASN1_INTEGER;
357 sk_ASN1_TYPE_push(ndsa, ttmp);
358
359 ttmp = ASN1_TYPE_new();
360 ttmp->value.integer = prkey;
361 ttmp->type = V_ASN1_INTEGER;
362 sk_ASN1_TYPE_push(ndsa, ttmp);
363
364 p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();
365
366 if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
367 &p8->pkey->value.octet_string->data,
368 &p8->pkey->value.octet_string->length)) {
369
370 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
371 sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
372 M_ASN1_INTEGER_free(prkey);
373 return 0;
374 }
375 sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
376 break;
377
378 case PKCS8_EMBEDDED_PARAM:
379
380 p8->pkeyalg->parameter->type = V_ASN1_NULL;
381 ndsa = sk_ASN1_TYPE_new_null();
382 ttmp = ASN1_TYPE_new();
383 ttmp->value.sequence = params;
384 ttmp->type = V_ASN1_SEQUENCE;
385 sk_ASN1_TYPE_push(ndsa, ttmp);
386
387 ttmp = ASN1_TYPE_new();
388 ttmp->value.integer = prkey;
389 ttmp->type = V_ASN1_INTEGER;
390 sk_ASN1_TYPE_push(ndsa, ttmp);
391
392 p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();
393
394 if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
395 &p8->pkey->value.octet_string->data,
396 &p8->pkey->value.octet_string->length)) {
397
398 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
399 sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
400 M_ASN1_INTEGER_free (prkey);
401 return 0;
402 }
403 sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
404 break;
405 }
406 return 1;
407}
408#endif
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