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.]
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_bits(pkey
)
79 if (pkey
->type
== EVP_PKEY_RSA
)
80 return(BN_num_bits(pkey
->pkey
.rsa
->n
));
84 if (pkey
->type
== EVP_PKEY_DSA
)
85 return(BN_num_bits(pkey
->pkey
.dsa
->p
));
90 int EVP_PKEY_size(pkey
)
94 if (pkey
->type
== EVP_PKEY_RSA
)
95 return(RSA_size(pkey
->pkey
.rsa
));
99 if (pkey
->type
== EVP_PKEY_DSA
)
100 return(DSA_size(pkey
->pkey
.dsa
));
105 int EVP_PKEY_save_parameters(pkey
,mode
)
110 if (pkey
->type
== EVP_PKEY_DSA
)
112 int ret
=pkey
->save_parameters
=mode
;
115 pkey
->save_parameters
=mode
;
122 int EVP_PKEY_copy_parameters(to
,from
)
125 if (to
->type
!= from
->type
)
127 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS
,EVP_R_DIFFERENT_KEY_TYPES
);
131 if (EVP_PKEY_missing_parameters(from
))
133 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS
,EVP_R_MISSING_PARMATERS
);
137 if (to
->type
== EVP_PKEY_DSA
)
141 if ((a
=BN_dup(from
->pkey
.dsa
->p
)) == NULL
) goto err
;
142 if (to
->pkey
.dsa
->p
!= NULL
) BN_free(to
->pkey
.dsa
->p
);
145 if ((a
=BN_dup(from
->pkey
.dsa
->q
)) == NULL
) goto err
;
146 if (to
->pkey
.dsa
->q
!= NULL
) BN_free(to
->pkey
.dsa
->q
);
149 if ((a
=BN_dup(from
->pkey
.dsa
->g
)) == NULL
) goto err
;
150 if (to
->pkey
.dsa
->g
!= NULL
) BN_free(to
->pkey
.dsa
->g
);
159 int EVP_PKEY_missing_parameters(pkey
)
163 if (pkey
->type
== EVP_PKEY_DSA
)
168 if ((dsa
->p
== NULL
) || (dsa
->q
== NULL
) || (dsa
->g
== NULL
))
175 int EVP_PKEY_cmp_parameters(a
,b
)
179 if ((a
->type
== EVP_PKEY_DSA
) && (b
->type
== EVP_PKEY_DSA
))
181 if ( BN_cmp(a
->pkey
.dsa
->p
,b
->pkey
.dsa
->p
) ||
182 BN_cmp(a
->pkey
.dsa
->q
,b
->pkey
.dsa
->q
) ||
183 BN_cmp(a
->pkey
.dsa
->g
,b
->pkey
.dsa
->g
))
192 EVP_PKEY
*EVP_PKEY_new()
196 ret
=(EVP_PKEY
*)Malloc(sizeof(EVP_PKEY
));
199 EVPerr(EVP_F_EVP_PKEY_NEW
,ERR_R_MALLOC_FAILURE
);
202 ret
->type
=EVP_PKEY_NONE
;
205 ret
->attributes
=NULL
;
206 ret
->save_parameters
=1;
210 int EVP_PKEY_assign(pkey
,type
,key
)
215 if (pkey
== NULL
) return(0);
216 if (pkey
->pkey
.ptr
!= NULL
)
217 EVP_PKEY_free_it(pkey
);
218 pkey
->type
=EVP_PKEY_type(type
);
219 pkey
->save_type
=type
;
224 int EVP_PKEY_type(type
)
231 return(EVP_PKEY_RSA
);
237 return(EVP_PKEY_DSA
);
245 void EVP_PKEY_free(x
)
250 if (x
== NULL
) return;
252 i
=CRYPTO_add(&x
->references
,-1,CRYPTO_LOCK_EVP_PKEY
);
254 REF_PRINT("EVP_PKEY",x
);
260 fprintf(stderr
,"EVP_PKEY_free, bad reference count\n");
268 static void EVP_PKEY_free_it(x
)
276 RSA_free(x
->pkey
.rsa
);
284 DSA_free(x
->pkey
.dsa
);