1 /* crypto/evp/p_lib.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
61 #include <openssl/bn.h>
62 #include <openssl/err.h>
63 #include <openssl/objects.h>
64 #include <openssl/evp.h>
65 #include <openssl/asn1_mac.h>
66 #include <openssl/x509.h>
68 static void EVP_PKEY_free_it(EVP_PKEY
*x
);
70 int EVP_PKEY_bits(EVP_PKEY
*pkey
)
74 #ifndef OPENSSL_NO_RSA
75 else if (pkey
->type
== EVP_PKEY_RSA
)
76 return(BN_num_bits(pkey
->pkey
.rsa
->n
));
78 #ifndef OPENSSL_NO_DSA
79 else if (pkey
->type
== EVP_PKEY_DSA
)
80 return(BN_num_bits(pkey
->pkey
.dsa
->p
));
83 else if (pkey
->type
== EVP_PKEY_EC
)
85 BIGNUM
*order
= BN_new();
93 if (!EC_GROUP_get_order(pkey
->pkey
.eckey
->group
, order
, NULL
))
99 ret
= BN_num_bits(order
);
107 int EVP_PKEY_size(EVP_PKEY
*pkey
)
111 #ifndef OPENSSL_NO_RSA
112 if (pkey
->type
== EVP_PKEY_RSA
)
113 return(RSA_size(pkey
->pkey
.rsa
));
116 #ifndef OPENSSL_NO_DSA
117 if (pkey
->type
== EVP_PKEY_DSA
)
118 return(DSA_size(pkey
->pkey
.dsa
));
120 #ifndef OPENSSL_NO_EC
121 if (pkey
->type
== EVP_PKEY_EC
)
122 return(ECDSA_size(pkey
->pkey
.eckey
));
128 int EVP_PKEY_save_parameters(EVP_PKEY
*pkey
, int mode
)
130 #ifndef OPENSSL_NO_DSA
131 if (pkey
->type
== EVP_PKEY_DSA
)
133 int ret
=pkey
->save_parameters
;
136 pkey
->save_parameters
=mode
;
140 #ifndef OPENSSL_NO_EC
141 if (pkey
->type
== EVP_PKEY_EC
)
143 int ret
= pkey
->save_parameters
;
146 pkey
->save_parameters
= mode
;
153 int EVP_PKEY_copy_parameters(EVP_PKEY
*to
, EVP_PKEY
*from
)
155 if (to
->type
!= from
->type
)
157 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS
,EVP_R_DIFFERENT_KEY_TYPES
);
161 if (EVP_PKEY_missing_parameters(from
))
163 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS
,EVP_R_MISSING_PARAMETERS
);
166 #ifndef OPENSSL_NO_DSA
167 if (to
->type
== EVP_PKEY_DSA
)
171 if ((a
=BN_dup(from
->pkey
.dsa
->p
)) == NULL
) goto err
;
172 if (to
->pkey
.dsa
->p
!= NULL
) BN_free(to
->pkey
.dsa
->p
);
175 if ((a
=BN_dup(from
->pkey
.dsa
->q
)) == NULL
) goto err
;
176 if (to
->pkey
.dsa
->q
!= NULL
) BN_free(to
->pkey
.dsa
->q
);
179 if ((a
=BN_dup(from
->pkey
.dsa
->g
)) == NULL
) goto err
;
180 if (to
->pkey
.dsa
->g
!= NULL
) BN_free(to
->pkey
.dsa
->g
);
184 #ifndef OPENSSL_NO_EC
185 if (to
->type
== EVP_PKEY_EC
)
187 if (to
->pkey
.eckey
->group
!= NULL
)
188 EC_GROUP_free(to
->pkey
.eckey
->group
);
189 if ((to
->pkey
.eckey
->group
= EC_GROUP_new(
190 EC_GROUP_method_of(from
->pkey
.eckey
->group
))) == NULL
)
192 if (!EC_GROUP_copy(to
->pkey
.eckey
->group
,
193 from
->pkey
.eckey
->group
)) goto err
;
201 int EVP_PKEY_missing_parameters(EVP_PKEY
*pkey
)
203 #ifndef OPENSSL_NO_DSA
204 if (pkey
->type
== EVP_PKEY_DSA
)
209 if ((dsa
->p
== NULL
) || (dsa
->q
== NULL
) || (dsa
->g
== NULL
))
213 #ifndef OPENSSL_NO_EC
214 if (pkey
->type
== EVP_PKEY_EC
)
216 if (pkey
->pkey
.eckey
->group
== NULL
)
224 int EVP_PKEY_cmp_parameters(EVP_PKEY
*a
, EVP_PKEY
*b
)
226 #ifndef OPENSSL_NO_DSA
227 if ((a
->type
== EVP_PKEY_DSA
) && (b
->type
== EVP_PKEY_DSA
))
229 if ( BN_cmp(a
->pkey
.dsa
->p
,b
->pkey
.dsa
->p
) ||
230 BN_cmp(a
->pkey
.dsa
->q
,b
->pkey
.dsa
->q
) ||
231 BN_cmp(a
->pkey
.dsa
->g
,b
->pkey
.dsa
->g
))
240 EVP_PKEY
*EVP_PKEY_new(void)
244 ret
=(EVP_PKEY
*)OPENSSL_malloc(sizeof(EVP_PKEY
));
247 EVPerr(EVP_F_EVP_PKEY_NEW
,ERR_R_MALLOC_FAILURE
);
250 ret
->type
=EVP_PKEY_NONE
;
253 ret
->attributes
=NULL
;
254 ret
->save_parameters
=1;
258 int EVP_PKEY_assign(EVP_PKEY
*pkey
, int type
, char *key
)
260 if (pkey
== NULL
) return(0);
261 if (pkey
->pkey
.ptr
!= NULL
)
262 EVP_PKEY_free_it(pkey
);
263 pkey
->type
=EVP_PKEY_type(type
);
264 pkey
->save_type
=type
;
269 #ifndef OPENSSL_NO_RSA
270 int EVP_PKEY_set1_RSA(EVP_PKEY
*pkey
, RSA
*key
)
272 int ret
= EVP_PKEY_assign_RSA(pkey
, key
);
278 RSA
*EVP_PKEY_get1_RSA(EVP_PKEY
*pkey
)
280 if(pkey
->type
!= EVP_PKEY_RSA
) {
281 EVPerr(EVP_F_EVP_PKEY_GET1_RSA
, EVP_R_EXPECTING_AN_RSA_KEY
);
284 RSA_up_ref(pkey
->pkey
.rsa
);
285 return pkey
->pkey
.rsa
;
289 #ifndef OPENSSL_NO_DSA
290 int EVP_PKEY_set1_DSA(EVP_PKEY
*pkey
, DSA
*key
)
292 int ret
= EVP_PKEY_assign_DSA(pkey
, key
);
298 DSA
*EVP_PKEY_get1_DSA(EVP_PKEY
*pkey
)
300 if(pkey
->type
!= EVP_PKEY_DSA
) {
301 EVPerr(EVP_F_EVP_PKEY_GET1_DSA
, EVP_R_EXPECTING_A_DSA_KEY
);
304 DSA_up_ref(pkey
->pkey
.dsa
);
305 return pkey
->pkey
.dsa
;
309 #ifndef OPENSSL_NO_EC
311 int EVP_PKEY_set1_EC_KEY(EVP_PKEY
*pkey
, EC_KEY
*key
)
313 int ret
= EVP_PKEY_assign_EC_KEY(pkey
,key
);
314 if (ret
) CRYPTO_add(&key
->references
, 1, CRYPTO_LOCK_EC
);
318 EC_KEY
*EVP_PKEY_get1_EC_KEY(EVP_PKEY
*pkey
)
320 if (pkey
->type
!= EVP_PKEY_EC
)
322 EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY
, EVP_R_EXPECTING_A_EC_KEY
);
325 CRYPTO_add(&pkey
->pkey
.eckey
->references
, 1, CRYPTO_LOCK_EC
);
326 return pkey
->pkey
.eckey
;
331 #ifndef OPENSSL_NO_DH
333 int EVP_PKEY_set1_DH(EVP_PKEY
*pkey
, DH
*key
)
335 int ret
= EVP_PKEY_assign_DH(pkey
, key
);
341 DH
*EVP_PKEY_get1_DH(EVP_PKEY
*pkey
)
343 if(pkey
->type
!= EVP_PKEY_DH
) {
344 EVPerr(EVP_F_EVP_PKEY_GET1_DH
, EVP_R_EXPECTING_A_DH_KEY
);
347 DH_up_ref(pkey
->pkey
.dh
);
348 return pkey
->pkey
.dh
;
352 int EVP_PKEY_type(int type
)
358 return(EVP_PKEY_RSA
);
364 return(EVP_PKEY_DSA
);
374 void EVP_PKEY_free(EVP_PKEY
*x
)
378 if (x
== NULL
) return;
380 i
=CRYPTO_add(&x
->references
,-1,CRYPTO_LOCK_EVP_PKEY
);
382 REF_PRINT("EVP_PKEY",x
);
388 fprintf(stderr
,"EVP_PKEY_free, bad reference count\n");
396 static void EVP_PKEY_free_it(EVP_PKEY
*x
)
400 #ifndef OPENSSL_NO_RSA
403 RSA_free(x
->pkey
.rsa
);
406 #ifndef OPENSSL_NO_DSA
411 DSA_free(x
->pkey
.dsa
);
414 #ifndef OPENSSL_NO_EC
416 EC_KEY_free(x
->pkey
.eckey
);
419 #ifndef OPENSSL_NO_DH