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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. | |
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 | 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 | return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u); | |
89 | } | |
90 | ||
91 | 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 | return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u); | |
96 | } | |
97 | ||
98 | 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 | return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u); | |
103 | } | |
104 | ||
105 | 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 | return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u); | |
110 | } | |
111 | ||
112 | 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 | if(!(p8inf = EVP_PKEY2PKCS8(x))) { | |
8afca8d9 | 121 | PEMerr(PEM_F_DO_PK8PKEY, |
1241126a DSH |
122 | PEM_R_ERROR_CONVERTING_PRIVATE_KEY); |
123 | return 0; | |
124 | } | |
125 | if(enc || (nid != -1)) { | |
126 | if(!kstr) { | |
127 | if(!cb) klen = PEM_def_callback(buf, PEM_BUFSIZE, 1, u); | |
128 | else klen = cb(buf, PEM_BUFSIZE, 1, u); | |
129 | if(klen <= 0) { | |
8afca8d9 | 130 | PEMerr(PEM_F_DO_PK8PKEY,PEM_R_READ_KEY); |
1241126a DSH |
131 | PKCS8_PRIV_KEY_INFO_free(p8inf); |
132 | return 0; | |
133 | } | |
134 | ||
135 | kstr = buf; | |
136 | } | |
137 | p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf); | |
4579924b | 138 | if(kstr == buf) OPENSSL_cleanse(buf, klen); |
1241126a DSH |
139 | PKCS8_PRIV_KEY_INFO_free(p8inf); |
140 | if(isder) ret = i2d_PKCS8_bio(bp, p8); | |
141 | else ret = PEM_write_bio_PKCS8(bp, p8); | |
142 | X509_SIG_free(p8); | |
143 | return ret; | |
144 | } else { | |
145 | if(isder) ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf); | |
146 | else ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf); | |
147 | PKCS8_PRIV_KEY_INFO_free(p8inf); | |
148 | return ret; | |
149 | } | |
150 | } | |
151 | ||
152 | EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u) | |
153 | { | |
154 | PKCS8_PRIV_KEY_INFO *p8inf = NULL; | |
155 | X509_SIG *p8 = NULL; | |
156 | int klen; | |
157 | EVP_PKEY *ret; | |
158 | char psbuf[PEM_BUFSIZE]; | |
159 | p8 = d2i_PKCS8_bio(bp, NULL); | |
160 | if(!p8) return NULL; | |
161 | if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u); | |
162 | else klen=PEM_def_callback(psbuf,PEM_BUFSIZE,0,u); | |
163 | if (klen <= 0) { | |
164 | PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_BIO, PEM_R_BAD_PASSWORD_READ); | |
165 | X509_SIG_free(p8); | |
166 | return NULL; | |
167 | } | |
168 | p8inf = PKCS8_decrypt(p8, psbuf, klen); | |
169 | X509_SIG_free(p8); | |
170 | if(!p8inf) return NULL; | |
171 | ret = EVP_PKCS82PKEY(p8inf); | |
172 | PKCS8_PRIV_KEY_INFO_free(p8inf); | |
173 | if(!ret) return NULL; | |
174 | if(x) { | |
175 | if(*x) EVP_PKEY_free(*x); | |
176 | *x = ret; | |
177 | } | |
178 | return ret; | |
179 | } | |
180 | ||
181 | #ifndef OPENSSL_NO_FP_API | |
182 | ||
183 | 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 | return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u); | |
188 | } | |
189 | ||
190 | 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 | return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u); | |
195 | } | |
196 | ||
197 | 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 | return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u); | |
202 | } | |
203 | ||
204 | 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 | return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u); | |
208 | } | |
209 | ||
210 | 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 | if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) { | |
8afca8d9 | 217 | PEMerr(PEM_F_DO_PK8PKEY_FP,ERR_R_BUF_LIB); |
1241126a DSH |
218 | return(0); |
219 | } | |
220 | ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u); | |
221 | BIO_free(bp); | |
222 | return ret; | |
223 | } | |
224 | ||
225 | 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 | if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) { | |
230 | PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_FP,ERR_R_BUF_LIB); | |
231 | return NULL; | |
232 | } | |
233 | ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u); | |
234 | BIO_free(bp); | |
235 | return ret; | |
236 | } | |
237 | ||
238 | #endif | |
239 | ||
240 | IMPLEMENT_PEM_rw(PKCS8, X509_SIG, PEM_STRING_PKCS8, X509_SIG) | |
241 | IMPLEMENT_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF, | |
242 | PKCS8_PRIV_KEY_INFO) |