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 #include <openssl/pem.h>
58
59 #include <openssl/buf.h>
60 #include <openssl/err.h>
61 #include <openssl/evp.h>
62 #include <openssl/mem.h>
63 #include <openssl/obj.h>
64 #include <openssl/pkcs8.h>
65 #include <openssl/rand.h>
66 #include <openssl/x509.h>
67
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
PEM_write_bio_PKCS8PrivateKey_nid(BIO * bp,EVP_PKEY * x,int nid,char * kstr,int klen,pem_password_cb * cb,void * u)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
PEM_write_bio_PKCS8PrivateKey(BIO * bp,EVP_PKEY * x,const EVP_CIPHER * enc,char * kstr,int klen,pem_password_cb * cb,void * u)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
i2d_PKCS8PrivateKey_bio(BIO * bp,EVP_PKEY * x,const EVP_CIPHER * enc,char * kstr,int klen,pem_password_cb * cb,void * u)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
i2d_PKCS8PrivateKey_nid_bio(BIO * bp,EVP_PKEY * x,int nid,char * kstr,int klen,pem_password_cb * cb,void * u)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
do_pk8pkey(BIO * bp,EVP_PKEY * x,int isder,int nid,const EVP_CIPHER * enc,char * kstr,int klen,pem_password_cb * cb,void * u)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))) {
121 OPENSSL_PUT_ERROR(PEM, do_pk8pkey, PEM_R_ERROR_CONVERTING_PRIVATE_KEY);
122 return 0;
123 }
124 if(enc || (nid != -1)) {
125 if(!kstr) {
126 klen = 0;
127 if (!cb) cb = PEM_def_callback;
128 klen = cb(buf, PEM_BUFSIZE, 1, u);
129 if(klen <= 0) {
130 OPENSSL_PUT_ERROR(PEM, do_pk8pkey, PEM_R_READ_KEY);
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);
138 if(kstr == buf) OPENSSL_cleanse(buf, klen);
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
d2i_PKCS8PrivateKey_bio(BIO * bp,EVP_PKEY ** x,pem_password_cb * cb,void * u)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
162 klen = 0;
163 if (!cb) cb = PEM_def_callback;
164 klen=cb(psbuf,PEM_BUFSIZE,0,u);
165 if (klen <= 0) {
166 OPENSSL_PUT_ERROR(PEM, d2i_PKCS8PrivateKey_bio, PEM_R_BAD_PASSWORD_READ);
167 X509_SIG_free(p8);
168 return NULL;
169 }
170 p8inf = PKCS8_decrypt(p8, psbuf, klen);
171 X509_SIG_free(p8);
172 if(!p8inf) return NULL;
173 ret = EVP_PKCS82PKEY(p8inf);
174 PKCS8_PRIV_KEY_INFO_free(p8inf);
175 if(!ret) return NULL;
176 if(x) {
177 if(*x) EVP_PKEY_free(*x);
178 *x = ret;
179 }
180 return ret;
181 }
182
183 #ifndef OPENSSL_NO_FP_API
184
i2d_PKCS8PrivateKey_fp(FILE * fp,EVP_PKEY * x,const EVP_CIPHER * enc,char * kstr,int klen,pem_password_cb * cb,void * u)185 int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
186 char *kstr, int klen,
187 pem_password_cb *cb, void *u)
188 {
189 return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u);
190 }
191
i2d_PKCS8PrivateKey_nid_fp(FILE * fp,EVP_PKEY * x,int nid,char * kstr,int klen,pem_password_cb * cb,void * u)192 int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid,
193 char *kstr, int klen,
194 pem_password_cb *cb, void *u)
195 {
196 return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u);
197 }
198
PEM_write_PKCS8PrivateKey_nid(FILE * fp,EVP_PKEY * x,int nid,char * kstr,int klen,pem_password_cb * cb,void * u)199 int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid,
200 char *kstr, int klen,
201 pem_password_cb *cb, void *u)
202 {
203 return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u);
204 }
205
PEM_write_PKCS8PrivateKey(FILE * fp,EVP_PKEY * x,const EVP_CIPHER * enc,char * kstr,int klen,pem_password_cb * cb,void * u)206 int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
207 char *kstr, int klen, pem_password_cb *cb, void *u)
208 {
209 return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u);
210 }
211
do_pk8pkey_fp(FILE * fp,EVP_PKEY * x,int isder,int nid,const EVP_CIPHER * enc,char * kstr,int klen,pem_password_cb * cb,void * u)212 static int do_pk8pkey_fp(FILE *fp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
213 char *kstr, int klen,
214 pem_password_cb *cb, void *u)
215 {
216 BIO *bp;
217 int ret;
218 if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
219 OPENSSL_PUT_ERROR(PEM, do_pk8pkey_fp, ERR_R_BUF_LIB);
220 return(0);
221 }
222 ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u);
223 BIO_free(bp);
224 return ret;
225 }
226
d2i_PKCS8PrivateKey_fp(FILE * fp,EVP_PKEY ** x,pem_password_cb * cb,void * u)227 EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
228 {
229 BIO *bp;
230 EVP_PKEY *ret;
231 if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
232 OPENSSL_PUT_ERROR(PEM, d2i_PKCS8PrivateKey_fp, ERR_R_BUF_LIB);
233 return NULL;
234 }
235 ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u);
236 BIO_free(bp);
237 return ret;
238 }
239
240 #endif
241
242 IMPLEMENT_PEM_rw(PKCS8, X509_SIG, PEM_STRING_PKCS8, X509_SIG)
243 IMPLEMENT_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF,
244 PKCS8_PRIV_KEY_INFO)
245