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/objects.h>
62 #include <openssl/evp.h>
63 #include <openssl/asn1_mac.h>
64 #include <openssl/x509.h>
66 static void EVP_PKEY_free_it(EVP_PKEY
*x
);
68 int EVP_PKEY_bits(EVP_PKEY
*pkey
)
70 #ifndef OPENSSL_NO_RSA
71 if (pkey
->type
== EVP_PKEY_RSA
)
72 return(BN_num_bits(pkey
->pkey
.rsa
->n
));
75 #ifndef OPENSSL_NO_DSA
76 if (pkey
->type
== EVP_PKEY_DSA
)
77 return(BN_num_bits(pkey
->pkey
.dsa
->p
));
82 int EVP_PKEY_size(EVP_PKEY
*pkey
)
86 #ifndef OPENSSL_NO_RSA
87 if (pkey
->type
== EVP_PKEY_RSA
)
88 return(RSA_size(pkey
->pkey
.rsa
));
91 #ifndef OPENSSL_NO_DSA
92 if (pkey
->type
== EVP_PKEY_DSA
)
93 return(DSA_size(pkey
->pkey
.dsa
));
98 int EVP_PKEY_save_parameters(EVP_PKEY
*pkey
, int mode
)
100 #ifndef OPENSSL_NO_DSA
101 if (pkey
->type
== EVP_PKEY_DSA
)
103 int ret
=pkey
->save_parameters
;
106 pkey
->save_parameters
=mode
;
113 int EVP_PKEY_copy_parameters(EVP_PKEY
*to
, EVP_PKEY
*from
)
115 if (to
->type
!= from
->type
)
117 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS
,EVP_R_DIFFERENT_KEY_TYPES
);
121 if (EVP_PKEY_missing_parameters(from
))
123 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS
,EVP_R_MISSING_PARAMETERS
);
126 #ifndef OPENSSL_NO_DSA
127 if (to
->type
== EVP_PKEY_DSA
)
131 if ((a
=BN_dup(from
->pkey
.dsa
->p
)) == NULL
) goto err
;
132 if (to
->pkey
.dsa
->p
!= NULL
) BN_free(to
->pkey
.dsa
->p
);
135 if ((a
=BN_dup(from
->pkey
.dsa
->q
)) == NULL
) goto err
;
136 if (to
->pkey
.dsa
->q
!= NULL
) BN_free(to
->pkey
.dsa
->q
);
139 if ((a
=BN_dup(from
->pkey
.dsa
->g
)) == NULL
) goto err
;
140 if (to
->pkey
.dsa
->g
!= NULL
) BN_free(to
->pkey
.dsa
->g
);
149 int EVP_PKEY_missing_parameters(EVP_PKEY
*pkey
)
151 #ifndef OPENSSL_NO_DSA
152 if (pkey
->type
== EVP_PKEY_DSA
)
157 if ((dsa
->p
== NULL
) || (dsa
->q
== NULL
) || (dsa
->g
== NULL
))
164 int EVP_PKEY_cmp_parameters(EVP_PKEY
*a
, EVP_PKEY
*b
)
166 #ifndef OPENSSL_NO_DSA
167 if ((a
->type
== EVP_PKEY_DSA
) && (b
->type
== EVP_PKEY_DSA
))
169 if ( BN_cmp(a
->pkey
.dsa
->p
,b
->pkey
.dsa
->p
) ||
170 BN_cmp(a
->pkey
.dsa
->q
,b
->pkey
.dsa
->q
) ||
171 BN_cmp(a
->pkey
.dsa
->g
,b
->pkey
.dsa
->g
))
180 EVP_PKEY
*EVP_PKEY_new(void)
184 ret
=(EVP_PKEY
*)OPENSSL_malloc(sizeof(EVP_PKEY
));
187 EVPerr(EVP_F_EVP_PKEY_NEW
,ERR_R_MALLOC_FAILURE
);
190 ret
->type
=EVP_PKEY_NONE
;
193 ret
->attributes
=NULL
;
194 ret
->save_parameters
=1;
198 int EVP_PKEY_assign(EVP_PKEY
*pkey
, int type
, char *key
)
200 if (pkey
== NULL
) return(0);
201 if (pkey
->pkey
.ptr
!= NULL
)
202 EVP_PKEY_free_it(pkey
);
203 pkey
->type
=EVP_PKEY_type(type
);
204 pkey
->save_type
=type
;
209 #ifndef OPENSSL_NO_RSA
210 int EVP_PKEY_set1_RSA(EVP_PKEY
*pkey
, RSA
*key
)
212 int ret
= EVP_PKEY_assign_RSA(pkey
, key
);
218 RSA
*EVP_PKEY_get1_RSA(EVP_PKEY
*pkey
)
220 if(pkey
->type
!= EVP_PKEY_RSA
) {
221 EVPerr(EVP_F_EVP_PKEY_GET1_RSA
, EVP_R_EXPECTING_AN_RSA_KEY
);
224 RSA_up_ref(pkey
->pkey
.rsa
);
225 return pkey
->pkey
.rsa
;
229 #ifndef OPENSSL_NO_DSA
230 int EVP_PKEY_set1_DSA(EVP_PKEY
*pkey
, DSA
*key
)
232 int ret
= EVP_PKEY_assign_DSA(pkey
, key
);
238 DSA
*EVP_PKEY_get1_DSA(EVP_PKEY
*pkey
)
240 if(pkey
->type
!= EVP_PKEY_DSA
) {
241 EVPerr(EVP_F_EVP_PKEY_GET1_DSA
, EVP_R_EXPECTING_A_DSA_KEY
);
244 DSA_up_ref(pkey
->pkey
.dsa
);
245 return pkey
->pkey
.dsa
;
249 #ifndef OPENSSL_NO_DH
251 int EVP_PKEY_set1_DH(EVP_PKEY
*pkey
, DH
*key
)
253 int ret
= EVP_PKEY_assign_DH(pkey
, key
);
259 DH
*EVP_PKEY_get1_DH(EVP_PKEY
*pkey
)
261 if(pkey
->type
!= EVP_PKEY_DH
) {
262 EVPerr(EVP_F_EVP_PKEY_GET1_DH
, EVP_R_EXPECTING_A_DH_KEY
);
265 DH_up_ref(pkey
->pkey
.dh
);
266 return pkey
->pkey
.dh
;
270 int EVP_PKEY_type(int type
)
276 return(EVP_PKEY_RSA
);
282 return(EVP_PKEY_DSA
);
290 void EVP_PKEY_free(EVP_PKEY
*x
)
294 if (x
== NULL
) return;
296 i
=CRYPTO_add(&x
->references
,-1,CRYPTO_LOCK_EVP_PKEY
);
298 REF_PRINT("EVP_PKEY",x
);
304 fprintf(stderr
,"EVP_PKEY_free, bad reference count\n");
312 static void EVP_PKEY_free_it(EVP_PKEY
*x
)
316 #ifndef OPENSSL_NO_RSA
319 RSA_free(x
->pkey
.rsa
);
322 #ifndef OPENSSL_NO_DSA
327 DSA_free(x
->pkey
.dsa
);
330 #ifndef OPENSSL_NO_DH