Branch data Line data Source code
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 : :
69 : : static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder,
70 : : int nid, const EVP_CIPHER *enc,
71 : : char *kstr, int klen,
72 : : pem_password_cb *cb, void *u);
73 : : static int do_pk8pkey_fp(FILE *bp, EVP_PKEY *x, int isder,
74 : : int nid, const EVP_CIPHER *enc,
75 : : char *kstr, int klen,
76 : : pem_password_cb *cb, void *u);
77 : :
78 : : /* These functions write a private key in PKCS#8 format: it is a "drop in"
79 : : * replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc'
80 : : * is NULL then it uses the unencrypted private key form. The 'nid' versions
81 : : * uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0.
82 : : */
83 : :
84 : 0 : int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x, int nid,
85 : : char *kstr, int klen,
86 : : pem_password_cb *cb, void *u)
87 : : {
88 : 0 : return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u);
89 : : }
90 : :
91 : 10 : int PEM_write_bio_PKCS8PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
92 : : char *kstr, int klen,
93 : : pem_password_cb *cb, void *u)
94 : : {
95 : 10 : return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u);
96 : : }
97 : :
98 : 0 : int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
99 : : char *kstr, int klen,
100 : : pem_password_cb *cb, void *u)
101 : : {
102 : 0 : return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u);
103 : : }
104 : :
105 : 0 : int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid,
106 : : char *kstr, int klen,
107 : : pem_password_cb *cb, void *u)
108 : : {
109 : 0 : return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u);
110 : : }
111 : :
112 : 10 : static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
113 : : char *kstr, int klen,
114 : : pem_password_cb *cb, void *u)
115 : : {
116 : : X509_SIG *p8;
117 : : PKCS8_PRIV_KEY_INFO *p8inf;
118 : : char buf[PEM_BUFSIZE];
119 : : int ret;
120 [ - + ]: 10 : if(!(p8inf = EVP_PKEY2PKCS8(x))) {
121 : 0 : PEMerr(PEM_F_DO_PK8PKEY,
122 : : PEM_R_ERROR_CONVERTING_PRIVATE_KEY);
123 : 0 : return 0;
124 : : }
125 [ - + ]: 10 : if(enc || (nid != -1)) {
126 [ # # ]: 0 : if(!kstr) {
127 [ # # ]: 0 : if(!cb) klen = PEM_def_callback(buf, PEM_BUFSIZE, 1, u);
128 : 0 : else klen = cb(buf, PEM_BUFSIZE, 1, u);
129 [ # # ]: 0 : if(klen <= 0) {
130 : 0 : PEMerr(PEM_F_DO_PK8PKEY,PEM_R_READ_KEY);
131 : 0 : PKCS8_PRIV_KEY_INFO_free(p8inf);
132 : 0 : return 0;
133 : : }
134 : :
135 : : kstr = buf;
136 : : }
137 : 0 : p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf);
138 [ # # ]: 0 : if(kstr == buf) OPENSSL_cleanse(buf, klen);
139 : 0 : PKCS8_PRIV_KEY_INFO_free(p8inf);
140 [ # # ]: 0 : if(isder) ret = i2d_PKCS8_bio(bp, p8);
141 : 0 : else ret = PEM_write_bio_PKCS8(bp, p8);
142 : 0 : X509_SIG_free(p8);
143 : 0 : return ret;
144 : : } else {
145 [ - + ]: 10 : if(isder) ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
146 : 10 : else ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf);
147 : 10 : PKCS8_PRIV_KEY_INFO_free(p8inf);
148 : 10 : return ret;
149 : : }
150 : : }
151 : :
152 : 0 : EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
153 : : {
154 : 0 : PKCS8_PRIV_KEY_INFO *p8inf = NULL;
155 : 0 : X509_SIG *p8 = NULL;
156 : : int klen;
157 : : EVP_PKEY *ret;
158 : : char psbuf[PEM_BUFSIZE];
159 : 0 : p8 = d2i_PKCS8_bio(bp, NULL);
160 [ # # ]: 0 : if(!p8) return NULL;
161 [ # # ]: 0 : if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
162 : 0 : else klen=PEM_def_callback(psbuf,PEM_BUFSIZE,0,u);
163 [ # # ]: 0 : if (klen <= 0) {
164 : 0 : PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_BIO, PEM_R_BAD_PASSWORD_READ);
165 : 0 : X509_SIG_free(p8);
166 : 0 : return NULL;
167 : : }
168 : 0 : p8inf = PKCS8_decrypt(p8, psbuf, klen);
169 : 0 : X509_SIG_free(p8);
170 [ # # ]: 0 : if(!p8inf) return NULL;
171 : 0 : ret = EVP_PKCS82PKEY(p8inf);
172 : 0 : PKCS8_PRIV_KEY_INFO_free(p8inf);
173 [ # # ]: 0 : if(!ret) return NULL;
174 [ # # ]: 0 : if(x) {
175 [ # # ]: 0 : if(*x) EVP_PKEY_free(*x);
176 : 0 : *x = ret;
177 : : }
178 : 0 : return ret;
179 : : }
180 : :
181 : : #ifndef OPENSSL_NO_FP_API
182 : :
183 : 0 : int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
184 : : char *kstr, int klen,
185 : : pem_password_cb *cb, void *u)
186 : : {
187 : 0 : return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u);
188 : : }
189 : :
190 : 0 : int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid,
191 : : char *kstr, int klen,
192 : : pem_password_cb *cb, void *u)
193 : : {
194 : 0 : return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u);
195 : : }
196 : :
197 : 0 : int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid,
198 : : char *kstr, int klen,
199 : : pem_password_cb *cb, void *u)
200 : : {
201 : 0 : return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u);
202 : : }
203 : :
204 : 0 : int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
205 : : char *kstr, int klen, pem_password_cb *cb, void *u)
206 : : {
207 : 0 : return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u);
208 : : }
209 : :
210 : 0 : static int do_pk8pkey_fp(FILE *fp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
211 : : char *kstr, int klen,
212 : : pem_password_cb *cb, void *u)
213 : : {
214 : : BIO *bp;
215 : : int ret;
216 [ # # ]: 0 : if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
217 : 0 : PEMerr(PEM_F_DO_PK8PKEY_FP,ERR_R_BUF_LIB);
218 : 0 : return(0);
219 : : }
220 : 0 : ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u);
221 : 0 : BIO_free(bp);
222 : 0 : return ret;
223 : : }
224 : :
225 : 0 : EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
226 : : {
227 : : BIO *bp;
228 : : EVP_PKEY *ret;
229 [ # # ]: 0 : if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
230 : 0 : PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_FP,ERR_R_BUF_LIB);
231 : 0 : return NULL;
232 : : }
233 : 0 : ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u);
234 : 0 : BIO_free(bp);
235 : 0 : return ret;
236 : : }
237 : :
238 : : #endif
239 : :
240 : 0 : IMPLEMENT_PEM_rw(PKCS8, X509_SIG, PEM_STRING_PKCS8, X509_SIG)
241 : 20 : IMPLEMENT_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF,
242 : : PKCS8_PRIV_KEY_INFO)
|
