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