1 /* crypto/asn1/x_pubkey.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.]
64 * ASN1err(ASN1_F_D2I_X509_PUBKEY,ASN1_R_LENGTH_MISMATCH);
65 * ASN1err(ASN1_F_X509_PUBKEY_NEW,ASN1_R_LENGTH_MISMATCH);
68 int i2d_X509_PUBKEY(a,pp)
74 M_ASN1_I2D_len(a->algor, i2d_X509_ALGOR);
75 M_ASN1_I2D_len(a->public_key, i2d_ASN1_BIT_STRING);
77 M_ASN1_I2D_seq_total();
79 M_ASN1_I2D_put(a->algor, i2d_X509_ALGOR);
80 M_ASN1_I2D_put(a->public_key, i2d_ASN1_BIT_STRING);
85 X509_PUBKEY *d2i_X509_PUBKEY(a,pp,length)
90 M_ASN1_D2I_vars(a,X509_PUBKEY *,X509_PUBKEY_new);
93 M_ASN1_D2I_start_sequence();
94 M_ASN1_D2I_get(ret->algor,d2i_X509_ALGOR);
95 M_ASN1_D2I_get(ret->public_key,d2i_ASN1_BIT_STRING);
96 if (ret->pkey != NULL)
98 EVP_PKEY_free(ret->pkey);
101 M_ASN1_D2I_Finish(a,X509_PUBKEY_free,ASN1_F_D2I_X509_PUBKEY);
104 X509_PUBKEY *X509_PUBKEY_new()
106 X509_PUBKEY *ret=NULL;
108 M_ASN1_New_Malloc(ret,X509_PUBKEY);
109 M_ASN1_New(ret->algor,X509_ALGOR_new);
110 M_ASN1_New(ret->public_key,ASN1_BIT_STRING_new);
113 M_ASN1_New_Error(ASN1_F_X509_PUBKEY_NEW);
116 void X509_PUBKEY_free(a)
119 if (a == NULL) return;
120 X509_ALGOR_free(a->algor);
121 ASN1_BIT_STRING_free(a->public_key);
122 if (a->pkey != NULL) EVP_PKEY_free(a->pkey);
126 int X509_PUBKEY_set(x,pkey)
137 if (x == NULL) return(0);
139 if ((pk=X509_PUBKEY_new()) == NULL) goto err;
142 /* set the algorithm id */
143 if ((o=OBJ_nid2obj(pkey->type)) == NULL) goto err;
144 ASN1_OBJECT_free(a->algorithm);
147 /* Set the parameter list */
148 if (!pkey->save_parameters || (pkey->type == EVP_PKEY_RSA))
150 if ((a->parameter == NULL) ||
151 (a->parameter->type != V_ASN1_NULL))
153 ASN1_TYPE_free(a->parameter);
154 a->parameter=ASN1_TYPE_new();
155 a->parameter->type=V_ASN1_NULL;
160 if (pkey->type == EVP_PKEY_DSA)
167 ASN1_TYPE_free(a->parameter);
168 i=i2d_DSAparams(dsa,NULL);
169 p=(unsigned char *)Malloc(i);
171 i2d_DSAparams(dsa,&pp);
172 a->parameter=ASN1_TYPE_new();
173 a->parameter->type=V_ASN1_SEQUENCE;
174 a->parameter->value.sequence=ASN1_STRING_new();
175 ASN1_STRING_set(a->parameter->value.sequence,p,i);
181 X509err(X509_F_X509_PUBKEY_SET,X509_R_UNSUPPORTED_ALGORITHM);
185 i=i2d_PublicKey(pkey,NULL);
186 if ((s=(unsigned char *)Malloc(i+1)) == NULL) goto err;
188 i2d_PublicKey(pkey,&p);
189 if (!ASN1_BIT_STRING_set(pk->public_key,s,i)) goto err;
192 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
196 X509_PUBKEY_free(*x);
203 if (pk != NULL) X509_PUBKEY_free(pk);
207 EVP_PKEY *X509_PUBKEY_get(key)
216 if (key->pkey != NULL)
220 type=OBJ_obj2nid(key->algor->algorithm);
221 p=key->public_key->data;
222 j=key->public_key->length;
223 if ((ret=d2i_PublicKey(type,NULL,&p,(long)j)) == NULL)
225 X509err(X509_F_X509_PUBKEY_GET,X509_R_ERR_ASN1_LIB);
228 ret->save_parameters=0;
232 if (ret->type == EVP_PKEY_DSA)
234 if (a->parameter->type == V_ASN1_SEQUENCE)
236 ret->pkey.dsa->write_params=0;
237 p=a->parameter->value.sequence->data;
238 j=a->parameter->value.sequence->length;
239 if (!d2i_DSAparams(&ret->pkey.dsa,&p,(long)j))
242 ret->save_parameters=1;