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1241126a DSH |
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. | |
0f113f3e | 8 | * |
1241126a DSH |
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). | |
0f113f3e | 15 | * |
1241126a DSH |
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. | |
0f113f3e | 22 | * |
1241126a DSH |
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 :-). | |
0f113f3e | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
1241126a DSH |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 40 | * |
1241126a DSH |
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. | |
0f113f3e | 52 | * |
1241126a DSH |
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> | |
b39fc560 | 60 | #include "internal/cryptlib.h" |
1241126a DSH |
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, | |
0f113f3e MC |
70 | int nid, const EVP_CIPHER *enc, |
71 | char *kstr, int klen, pem_password_cb *cb, void *u); | |
1241126a | 72 | static int do_pk8pkey_fp(FILE *bp, EVP_PKEY *x, int isder, |
0f113f3e MC |
73 | int nid, const EVP_CIPHER *enc, |
74 | char *kstr, int klen, pem_password_cb *cb, void *u); | |
1241126a | 75 | |
0f113f3e MC |
76 | /* |
77 | * These functions write a private key in PKCS#8 format: it is a "drop in" | |
1241126a DSH |
78 | * replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc' |
79 | * is NULL then it uses the unencrypted private key form. The 'nid' versions | |
80 | * uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0. | |
81 | */ | |
82 | ||
83 | int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x, int nid, | |
0f113f3e MC |
84 | char *kstr, int klen, |
85 | pem_password_cb *cb, void *u) | |
1241126a | 86 | { |
0f113f3e | 87 | return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u); |
1241126a DSH |
88 | } |
89 | ||
90 | int PEM_write_bio_PKCS8PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, | |
0f113f3e MC |
91 | char *kstr, int klen, |
92 | pem_password_cb *cb, void *u) | |
1241126a | 93 | { |
0f113f3e | 94 | return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u); |
1241126a DSH |
95 | } |
96 | ||
97 | int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, | |
0f113f3e MC |
98 | char *kstr, int klen, |
99 | pem_password_cb *cb, void *u) | |
1241126a | 100 | { |
0f113f3e | 101 | return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u); |
1241126a DSH |
102 | } |
103 | ||
104 | int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid, | |
0f113f3e MC |
105 | char *kstr, int klen, |
106 | pem_password_cb *cb, void *u) | |
1241126a | 107 | { |
0f113f3e | 108 | return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u); |
1241126a DSH |
109 | } |
110 | ||
0f113f3e MC |
111 | static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid, |
112 | const EVP_CIPHER *enc, char *kstr, int klen, | |
113 | pem_password_cb *cb, void *u) | |
1241126a | 114 | { |
0f113f3e MC |
115 | X509_SIG *p8; |
116 | PKCS8_PRIV_KEY_INFO *p8inf; | |
117 | char buf[PEM_BUFSIZE]; | |
118 | int ret; | |
75ebbd9a RS |
119 | |
120 | if ((p8inf = EVP_PKEY2PKCS8(x)) == NULL) { | |
0f113f3e MC |
121 | PEMerr(PEM_F_DO_PK8PKEY, PEM_R_ERROR_CONVERTING_PRIVATE_KEY); |
122 | return 0; | |
123 | } | |
124 | if (enc || (nid != -1)) { | |
125 | if (!kstr) { | |
126 | if (!cb) | |
127 | klen = PEM_def_callback(buf, PEM_BUFSIZE, 1, u); | |
128 | else | |
129 | klen = cb(buf, PEM_BUFSIZE, 1, u); | |
130 | if (klen <= 0) { | |
131 | PEMerr(PEM_F_DO_PK8PKEY, PEM_R_READ_KEY); | |
132 | PKCS8_PRIV_KEY_INFO_free(p8inf); | |
133 | return 0; | |
134 | } | |
135 | ||
136 | kstr = buf; | |
137 | } | |
138 | p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf); | |
139 | if (kstr == buf) | |
140 | OPENSSL_cleanse(buf, klen); | |
141 | PKCS8_PRIV_KEY_INFO_free(p8inf); | |
142 | if (isder) | |
143 | ret = i2d_PKCS8_bio(bp, p8); | |
144 | else | |
145 | ret = PEM_write_bio_PKCS8(bp, p8); | |
146 | X509_SIG_free(p8); | |
147 | return ret; | |
148 | } else { | |
149 | if (isder) | |
150 | ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf); | |
151 | else | |
152 | ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf); | |
153 | PKCS8_PRIV_KEY_INFO_free(p8inf); | |
154 | return ret; | |
155 | } | |
1241126a DSH |
156 | } |
157 | ||
0f113f3e MC |
158 | EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, |
159 | void *u) | |
1241126a | 160 | { |
0f113f3e MC |
161 | PKCS8_PRIV_KEY_INFO *p8inf = NULL; |
162 | X509_SIG *p8 = NULL; | |
163 | int klen; | |
164 | EVP_PKEY *ret; | |
165 | char psbuf[PEM_BUFSIZE]; | |
166 | p8 = d2i_PKCS8_bio(bp, NULL); | |
167 | if (!p8) | |
168 | return NULL; | |
169 | if (cb) | |
170 | klen = cb(psbuf, PEM_BUFSIZE, 0, u); | |
171 | else | |
172 | klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u); | |
173 | if (klen <= 0) { | |
174 | PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_BIO, PEM_R_BAD_PASSWORD_READ); | |
175 | X509_SIG_free(p8); | |
176 | return NULL; | |
177 | } | |
178 | p8inf = PKCS8_decrypt(p8, psbuf, klen); | |
179 | X509_SIG_free(p8); | |
180 | if (!p8inf) | |
181 | return NULL; | |
182 | ret = EVP_PKCS82PKEY(p8inf); | |
183 | PKCS8_PRIV_KEY_INFO_free(p8inf); | |
184 | if (!ret) | |
185 | return NULL; | |
186 | if (x) { | |
c5ba2d99 | 187 | EVP_PKEY_free(*x); |
0f113f3e MC |
188 | *x = ret; |
189 | } | |
190 | return ret; | |
1241126a DSH |
191 | } |
192 | ||
4b618848 | 193 | #ifndef OPENSSL_NO_STDIO |
1241126a DSH |
194 | |
195 | int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, | |
0f113f3e | 196 | char *kstr, int klen, pem_password_cb *cb, void *u) |
1241126a | 197 | { |
0f113f3e | 198 | return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u); |
1241126a DSH |
199 | } |
200 | ||
201 | int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid, | |
0f113f3e MC |
202 | char *kstr, int klen, |
203 | pem_password_cb *cb, void *u) | |
1241126a | 204 | { |
0f113f3e | 205 | return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u); |
1241126a DSH |
206 | } |
207 | ||
208 | int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid, | |
0f113f3e MC |
209 | char *kstr, int klen, |
210 | pem_password_cb *cb, void *u) | |
1241126a | 211 | { |
0f113f3e | 212 | return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u); |
1241126a DSH |
213 | } |
214 | ||
215 | int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, | |
0f113f3e MC |
216 | char *kstr, int klen, pem_password_cb *cb, |
217 | void *u) | |
1241126a | 218 | { |
0f113f3e | 219 | return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u); |
1241126a DSH |
220 | } |
221 | ||
0f113f3e MC |
222 | static int do_pk8pkey_fp(FILE *fp, EVP_PKEY *x, int isder, int nid, |
223 | const EVP_CIPHER *enc, char *kstr, int klen, | |
224 | pem_password_cb *cb, void *u) | |
1241126a | 225 | { |
0f113f3e MC |
226 | BIO *bp; |
227 | int ret; | |
75ebbd9a RS |
228 | |
229 | if ((bp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) { | |
0f113f3e MC |
230 | PEMerr(PEM_F_DO_PK8PKEY_FP, ERR_R_BUF_LIB); |
231 | return (0); | |
232 | } | |
233 | ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u); | |
234 | BIO_free(bp); | |
235 | return ret; | |
1241126a DSH |
236 | } |
237 | ||
0f113f3e MC |
238 | EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, |
239 | void *u) | |
1241126a | 240 | { |
0f113f3e MC |
241 | BIO *bp; |
242 | EVP_PKEY *ret; | |
75ebbd9a RS |
243 | |
244 | if ((bp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) { | |
0f113f3e MC |
245 | PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_FP, ERR_R_BUF_LIB); |
246 | return NULL; | |
247 | } | |
248 | ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u); | |
249 | BIO_free(bp); | |
250 | return ret; | |
1241126a DSH |
251 | } |
252 | ||
253 | #endif | |
254 | ||
255 | IMPLEMENT_PEM_rw(PKCS8, X509_SIG, PEM_STRING_PKCS8, X509_SIG) | |
0f113f3e MC |
256 | |
257 | ||
1241126a | 258 | IMPLEMENT_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF, |
0f113f3e | 259 | PKCS8_PRIV_KEY_INFO) |