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1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2  * All rights reserved.
3  *
4  * This package is an SSL implementation written
5  * by Eric Young (eay@cryptsoft.com).
6  * The implementation was written so as to conform with Netscapes SSL.
7  *
8  * This library is free for commercial and non-commercial use as long as
9  * the following conditions are aheared to.  The following conditions
10  * apply to all code found in this distribution, be it the RC4, RSA,
11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
12  * included with this distribution is covered by the same copyright terms
13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14  *
15  * Copyright remains Eric Young's, and as such any Copyright notices in
16  * the code are not to be removed.
17  * If this package is used in a product, Eric Young should be given attribution
18  * as the author of the parts of the library used.
19  * This can be in the form of a textual message at program startup or
20  * in documentation (online or textual) provided with the package.
21  *
22  * Redistribution and use in source and binary forms, with or without
23  * modification, are permitted provided that the following conditions
24  * are met:
25  * 1. Redistributions of source code must retain the copyright
26  *    notice, this list of conditions and the following disclaimer.
27  * 2. Redistributions in binary form must reproduce the above copyright
28  *    notice, this list of conditions and the following disclaimer in the
29  *    documentation and/or other materials provided with the distribution.
30  * 3. All advertising materials mentioning features or use of this software
31  *    must display the following acknowledgement:
32  *    "This product includes cryptographic software written by
33  *     Eric Young (eay@cryptsoft.com)"
34  *    The word 'cryptographic' can be left out if the rouines from the library
35  *    being used are not cryptographic related :-).
36  * 4. If you include any Windows specific code (or a derivative thereof) from
37  *    the apps directory (application code) you must include an acknowledgement:
38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39  *
40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50  * SUCH DAMAGE.
51  *
52  * The licence and distribution terms for any publically available version or
53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
54  * copied and put under another distribution licence
55  * [including the GNU Public Licence.]
56  */
57 /* ====================================================================
58  * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
59  *
60  * Redistribution and use in source and binary forms, with or without
61  * modification, are permitted provided that the following conditions
62  * are met:
63  *
64  * 1. Redistributions of source code must retain the above copyright
65  *    notice, this list of conditions and the following disclaimer.
66  *
67  * 2. Redistributions in binary form must reproduce the above copyright
68  *    notice, this list of conditions and the following disclaimer in
69  *    the documentation and/or other materials provided with the
70  *    distribution.
71  *
72  * 3. All advertising materials mentioning features or use of this
73  *    software must display the following acknowledgment:
74  *    "This product includes software developed by the OpenSSL Project
75  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
76  *
77  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
78  *    endorse or promote products derived from this software without
79  *    prior written permission. For written permission, please contact
80  *    openssl-core@openssl.org.
81  *
82  * 5. Products derived from this software may not be called "OpenSSL"
83  *    nor may "OpenSSL" appear in their names without prior written
84  *    permission of the OpenSSL Project.
85  *
86  * 6. Redistributions of any form whatsoever must retain the following
87  *    acknowledgment:
88  *    "This product includes software developed by the OpenSSL Project
89  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
90  *
91  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
92  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
94  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
95  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
96  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
97  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
98  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
99  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
100  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
101  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
102  * OF THE POSSIBILITY OF SUCH DAMAGE.
103  * ====================================================================
104  *
105  * This product includes cryptographic software written by Eric Young
106  * (eay@cryptsoft.com).  This product includes software written by Tim
107  * Hudson (tjh@cryptsoft.com). */
108 
109 #include <stdio.h>
110 
111 #include <openssl/bio.h>
112 #include <openssl/dh.h>
113 #include <openssl/dsa.h>
114 #include <openssl/evp.h>
115 #include <openssl/pem.h>
116 #include <openssl/pkcs7.h>
117 #include <openssl/rsa.h>
118 #include <openssl/x509.h>
119 
120 static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa);
121 static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa);
122 static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey);
123 
IMPLEMENT_PEM_rw(X509_REQ,X509_REQ,PEM_STRING_X509_REQ,X509_REQ)124 IMPLEMENT_PEM_rw(X509_REQ, X509_REQ, PEM_STRING_X509_REQ, X509_REQ)
125 
126 IMPLEMENT_PEM_write(X509_REQ_NEW, X509_REQ, PEM_STRING_X509_REQ_OLD, X509_REQ)
127 IMPLEMENT_PEM_rw(X509_CRL, X509_CRL, PEM_STRING_X509_CRL, X509_CRL)
128 IMPLEMENT_PEM_rw(PKCS7, PKCS7, PEM_STRING_PKCS7, PKCS7)
129 
130 /*
131  * We treat RSA or DSA private keys as a special case. For private keys we
132  * read in an EVP_PKEY structure with PEM_read_bio_PrivateKey() and extract
133  * the relevant private key: this means can handle "traditional" and PKCS#8
134  * formats transparently.
135  */
136 static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa)
137 {
138     RSA *rtmp;
139     if (!key)
140         return NULL;
141     rtmp = EVP_PKEY_get1_RSA(key);
142     EVP_PKEY_free(key);
143     if (!rtmp)
144         return NULL;
145     if (rsa) {
146         RSA_free(*rsa);
147         *rsa = rtmp;
148     }
149     return rtmp;
150 }
151 
PEM_read_bio_RSAPrivateKey(BIO * bp,RSA ** rsa,pem_password_cb * cb,void * u)152 RSA *PEM_read_bio_RSAPrivateKey(BIO *bp, RSA **rsa, pem_password_cb *cb,
153                                 void *u)
154 {
155     EVP_PKEY *pktmp;
156     pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
157     return pkey_get_rsa(pktmp, rsa);
158 }
159 
PEM_read_RSAPrivateKey(FILE * fp,RSA ** rsa,pem_password_cb * cb,void * u)160 RSA *PEM_read_RSAPrivateKey(FILE *fp, RSA **rsa, pem_password_cb *cb, void *u)
161 {
162     EVP_PKEY *pktmp;
163     pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
164     return pkey_get_rsa(pktmp, rsa);
165 }
166 
IMPLEMENT_PEM_write_cb_const(RSAPrivateKey,RSA,PEM_STRING_RSA,RSAPrivateKey)167 IMPLEMENT_PEM_write_cb_const(RSAPrivateKey, RSA, PEM_STRING_RSA,
168                              RSAPrivateKey)
169 
170 
171 IMPLEMENT_PEM_rw_const(RSAPublicKey, RSA, PEM_STRING_RSA_PUBLIC,
172                        RSAPublicKey) IMPLEMENT_PEM_rw(RSA_PUBKEY, RSA,
173                                                       PEM_STRING_PUBLIC,
174                                                       RSA_PUBKEY)
175 #ifndef OPENSSL_NO_DSA
176 static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa)
177 {
178     DSA *dtmp;
179     if (!key)
180         return NULL;
181     dtmp = EVP_PKEY_get1_DSA(key);
182     EVP_PKEY_free(key);
183     if (!dtmp)
184         return NULL;
185     if (dsa) {
186         DSA_free(*dsa);
187         *dsa = dtmp;
188     }
189     return dtmp;
190 }
191 
PEM_read_bio_DSAPrivateKey(BIO * bp,DSA ** dsa,pem_password_cb * cb,void * u)192 DSA *PEM_read_bio_DSAPrivateKey(BIO *bp, DSA **dsa, pem_password_cb *cb,
193                                 void *u)
194 {
195     EVP_PKEY *pktmp;
196     pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
197     return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
198 }
199 
IMPLEMENT_PEM_write_cb_const(DSAPrivateKey,DSA,PEM_STRING_DSA,DSAPrivateKey)200 IMPLEMENT_PEM_write_cb_const(DSAPrivateKey, DSA, PEM_STRING_DSA,
201                              DSAPrivateKey)
202 
203     IMPLEMENT_PEM_rw(DSA_PUBKEY, DSA, PEM_STRING_PUBLIC, DSA_PUBKEY)
204 DSA *PEM_read_DSAPrivateKey(FILE *fp, DSA **dsa, pem_password_cb *cb, void *u)
205 {
206     EVP_PKEY *pktmp;
207     pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
208     return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
209 }
210 
IMPLEMENT_PEM_rw_const(DSAparams,DSA,PEM_STRING_DSAPARAMS,DSAparams)211 IMPLEMENT_PEM_rw_const(DSAparams, DSA, PEM_STRING_DSAPARAMS, DSAparams)
212 #endif
213 static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey)
214 {
215     EC_KEY *dtmp;
216     if (!key)
217         return NULL;
218     dtmp = EVP_PKEY_get1_EC_KEY(key);
219     EVP_PKEY_free(key);
220     if (!dtmp)
221         return NULL;
222     if (eckey) {
223         EC_KEY_free(*eckey);
224         *eckey = dtmp;
225     }
226     return dtmp;
227 }
228 
PEM_read_bio_ECPrivateKey(BIO * bp,EC_KEY ** key,pem_password_cb * cb,void * u)229 EC_KEY *PEM_read_bio_ECPrivateKey(BIO *bp, EC_KEY **key, pem_password_cb *cb,
230                                   void *u)
231 {
232     EVP_PKEY *pktmp;
233     pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
234     return pkey_get_eckey(pktmp, key); /* will free pktmp */
235 }
236 
IMPLEMENT_PEM_write_cb(ECPrivateKey,EC_KEY,PEM_STRING_ECPRIVATEKEY,ECPrivateKey)237 IMPLEMENT_PEM_write_cb(ECPrivateKey, EC_KEY, PEM_STRING_ECPRIVATEKEY,
238                        ECPrivateKey)
239 
240     IMPLEMENT_PEM_rw(EC_PUBKEY, EC_KEY, PEM_STRING_PUBLIC, EC_PUBKEY)
241 EC_KEY *PEM_read_ECPrivateKey(FILE *fp, EC_KEY **eckey, pem_password_cb *cb,
242                               void *u)
243 {
244     EVP_PKEY *pktmp;
245     pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
246     return pkey_get_eckey(pktmp, eckey); /* will free pktmp */
247 }
248 
249 
250 IMPLEMENT_PEM_write_const(DHparams, DH, PEM_STRING_DHPARAMS, DHparams)
251 
252     IMPLEMENT_PEM_rw(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)
253