1 /* crypto/evp/p_lib.c */
2 /* Copyright (C) 1995-1997 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.]
66 /* EVPerr(EVP_F_D2I_PKEY,EVP_R_UNSUPPORTED_CIPHER); */
67 /* EVPerr(EVP_F_D2I_PKEY,EVP_R_IV_TOO_LARGE); */
70 static void EVP_PKEY_free_it(EVP_PKEY *x);
72 static void EVP_PKEY_free_it();
75 int EVP_PKEY_size(pkey)
79 if (pkey->type == EVP_PKEY_RSA)
80 return(RSA_size(pkey->pkey.rsa));
84 if (pkey->type == EVP_PKEY_DSA)
85 return(DSA_size(pkey->pkey.dsa));
90 int EVP_PKEY_save_parameters(pkey,mode)
95 if (pkey->type == EVP_PKEY_DSA)
97 int ret=pkey->save_parameters=mode;
100 pkey->save_parameters=mode;
107 int EVP_PKEY_copy_parameters(to,from)
110 if (to->type != from->type)
112 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
116 if (EVP_PKEY_missing_parameters(from))
118 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARMATERS);
122 if (to->type == EVP_PKEY_DSA)
126 if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err;
127 if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p);
130 if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err;
131 if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q);
134 if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err;
135 if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g);
144 int EVP_PKEY_missing_parameters(pkey)
148 if (pkey->type == EVP_PKEY_DSA)
153 if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))
160 EVP_PKEY *EVP_PKEY_new()
164 ret=(EVP_PKEY *)Malloc(sizeof(EVP_PKEY));
167 EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
170 ret->type=EVP_PKEY_NONE;
173 ret->attributes=NULL;
174 ret->save_parameters=1;
178 int EVP_PKEY_assign(pkey,type,key)
183 if (pkey == NULL) return(0);
184 if (pkey->pkey.ptr != NULL)
185 EVP_PKEY_free_it(pkey);
186 pkey->type=EVP_PKEY_type(type);
187 pkey->save_type=type;
192 int EVP_PKEY_type(type)
199 return(EVP_PKEY_RSA);
203 return(EVP_PKEY_DSA);
211 void EVP_PKEY_free(x)
216 if (x == NULL) return;
218 i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
223 fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
231 static void EVP_PKEY_free_it(x)
239 RSA_free(x->pkey.rsa);
246 DSA_free(x->pkey.dsa);