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authorcvs2svn <admin@example.com>2014-02-27 21:04:58 +0000
committercvs2svn <admin@example.com>2014-02-27 21:04:58 +0000
commit726818f36b5221c023cd04c4b90bdbc08e94cd96 (patch)
treecf8221f3aa5bf5a578ddf1ecf5677ad08c04d342 /src/lib/libcrypto/pem/pem_pkey.c
parent3b6d92e82b1421b811bcdec7f7fdfb31eeef18de (diff)
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Diffstat (limited to 'src/lib/libcrypto/pem/pem_pkey.c')
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diff --git a/src/lib/libcrypto/pem/pem_pkey.c b/src/lib/libcrypto/pem/pem_pkey.c
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1/* crypto/pem/pem_pkey.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
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.
8 *
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).
15 *
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.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
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)"
40 *
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
51 * SUCH DAMAGE.
52 *
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.]
57 */
58
59#include <stdio.h>
60#include "cryptlib.h"
61#include <openssl/buffer.h>
62#include <openssl/objects.h>
63#include <openssl/evp.h>
64#include <openssl/rand.h>
65#include <openssl/x509.h>
66#include <openssl/pkcs12.h>
67#include <openssl/pem.h>
68#ifndef OPENSSL_NO_ENGINE
69#include <openssl/engine.h>
70#endif
71#include "asn1_locl.h"
72
73int pem_check_suffix(const char *pem_str, const char *suffix);
74
75EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
76 {
77 char *nm=NULL;
78 const unsigned char *p=NULL;
79 unsigned char *data=NULL;
80 long len;
81 int slen;
82 EVP_PKEY *ret=NULL;
83
84 if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u))
85 return NULL;
86 p = data;
87
88 if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
89 PKCS8_PRIV_KEY_INFO *p8inf;
90 p8inf=d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len);
91 if(!p8inf) goto p8err;
92 ret = EVP_PKCS82PKEY(p8inf);
93 if(x) {
94 if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
95 *x = ret;
96 }
97 PKCS8_PRIV_KEY_INFO_free(p8inf);
98 } else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
99 PKCS8_PRIV_KEY_INFO *p8inf;
100 X509_SIG *p8;
101 int klen;
102 char psbuf[PEM_BUFSIZE];
103 p8 = d2i_X509_SIG(NULL, &p, len);
104 if(!p8) goto p8err;
105 if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
106 else klen=PEM_def_callback(psbuf,PEM_BUFSIZE,0,u);
107 if (klen <= 0) {
108 PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY,
109 PEM_R_BAD_PASSWORD_READ);
110 X509_SIG_free(p8);
111 goto err;
112 }
113 p8inf = PKCS8_decrypt(p8, psbuf, klen);
114 X509_SIG_free(p8);
115 if(!p8inf) goto p8err;
116 ret = EVP_PKCS82PKEY(p8inf);
117 if(x) {
118 if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
119 *x = ret;
120 }
121 PKCS8_PRIV_KEY_INFO_free(p8inf);
122 } else if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0)
123 {
124 const EVP_PKEY_ASN1_METHOD *ameth;
125 ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen);
126 if (!ameth || !ameth->old_priv_decode)
127 goto p8err;
128 ret=d2i_PrivateKey(ameth->pkey_id,x,&p,len);
129 }
130p8err:
131 if (ret == NULL)
132 PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY,ERR_R_ASN1_LIB);
133err:
134 OPENSSL_free(nm);
135 OPENSSL_cleanse(data, len);
136 OPENSSL_free(data);
137 return(ret);
138 }
139
140int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
141 unsigned char *kstr, int klen,
142 pem_password_cb *cb, void *u)
143 {
144 char pem_str[80];
145 if (!x->ameth || x->ameth->priv_encode)
146 return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
147 (char *)kstr, klen,
148 cb, u);
149
150 BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
151 return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
152 pem_str,bp,x,enc,kstr,klen,cb,u);
153 }
154
155EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
156 {
157 char *nm=NULL;
158 const unsigned char *p=NULL;
159 unsigned char *data=NULL;
160 long len;
161 int slen;
162 EVP_PKEY *ret=NULL;
163
164 if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_PARAMETERS,
165 bp, 0, NULL))
166 return NULL;
167 p = data;
168
169 if ((slen = pem_check_suffix(nm, "PARAMETERS")) > 0)
170 {
171 ret = EVP_PKEY_new();
172 if (!ret)
173 goto err;
174 if (!EVP_PKEY_set_type_str(ret, nm, slen)
175 || !ret->ameth->param_decode
176 || !ret->ameth->param_decode(ret, &p, len))
177 {
178 EVP_PKEY_free(ret);
179 ret = NULL;
180 goto err;
181 }
182 if(x)
183 {
184 if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
185 *x = ret;
186 }
187 }
188err:
189 if (ret == NULL)
190 PEMerr(PEM_F_PEM_READ_BIO_PARAMETERS,ERR_R_ASN1_LIB);
191 OPENSSL_free(nm);
192 OPENSSL_free(data);
193 return(ret);
194 }
195
196int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x)
197 {
198 char pem_str[80];
199 if (!x->ameth || !x->ameth->param_encode)
200 return 0;
201
202 BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
203 return PEM_ASN1_write_bio(
204 (i2d_of_void *)x->ameth->param_encode,
205 pem_str,bp,x,NULL,NULL,0,0,NULL);
206 }
207
208#ifndef OPENSSL_NO_FP_API
209EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
210 {
211 BIO *b;
212 EVP_PKEY *ret;
213
214 if ((b=BIO_new(BIO_s_file())) == NULL)
215 {
216 PEMerr(PEM_F_PEM_READ_PRIVATEKEY,ERR_R_BUF_LIB);
217 return(0);
218 }
219 BIO_set_fp(b,fp,BIO_NOCLOSE);
220 ret=PEM_read_bio_PrivateKey(b,x,cb,u);
221 BIO_free(b);
222 return(ret);
223 }
224
225int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
226 unsigned char *kstr, int klen,
227 pem_password_cb *cb, void *u)
228 {
229 BIO *b;
230 int ret;
231
232 if ((b=BIO_new_fp(fp, BIO_NOCLOSE)) == NULL)
233 {
234 PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY,ERR_R_BUF_LIB);
235 return 0;
236 }
237 ret=PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
238 BIO_free(b);
239 return ret;
240 }
241
242#endif
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