1 /* Copyright (C) 1995-1998 Eric Young ([email protected])
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young ([email protected]).
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 ([email protected]).
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 ([email protected])"
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 ([email protected])"
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/err.h>
60 #include <openssl/evp.h>
61 #include <openssl/mem.h>
62 #include <openssl/obj.h>
63 #include <openssl/pkcs8.h>
64 #include <openssl/rand.h>
65 #include <openssl/x509.h>
66
67 static int do_pk8pkey(BIO *bp, const EVP_PKEY *x, int isder, int nid,
68 const EVP_CIPHER *enc, const char *pass, int pass_len,
69 pem_password_cb *cb, void *u);
70 static int do_pk8pkey_fp(FILE *bp, const EVP_PKEY *x, int isder, int nid,
71 const EVP_CIPHER *enc, const char *pass, int pass_len,
72 pem_password_cb *cb, void *u);
73
74 // These functions write a private key in PKCS#8 format: it is a "drop in"
75 // replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc'
76 // is NULL then it uses the unencrypted private key form. The 'nid' versions
77 // uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0.
78
PEM_write_bio_PKCS8PrivateKey_nid(BIO * bp,const EVP_PKEY * x,int nid,const char * pass,int pass_len,pem_password_cb * cb,void * u)79 int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, const EVP_PKEY *x, int nid,
80 const char *pass, int pass_len,
81 pem_password_cb *cb, void *u) {
82 return do_pk8pkey(bp, x, 0, nid, NULL, pass, pass_len, cb, u);
83 }
84
PEM_write_bio_PKCS8PrivateKey(BIO * bp,const EVP_PKEY * x,const EVP_CIPHER * enc,const char * pass,int pass_len,pem_password_cb * cb,void * u)85 int PEM_write_bio_PKCS8PrivateKey(BIO *bp, const EVP_PKEY *x,
86 const EVP_CIPHER *enc, const char *pass,
87 int pass_len, pem_password_cb *cb, void *u) {
88 return do_pk8pkey(bp, x, 0, -1, enc, pass, pass_len, cb, u);
89 }
90
i2d_PKCS8PrivateKey_bio(BIO * bp,const EVP_PKEY * x,const EVP_CIPHER * enc,const char * pass,int pass_len,pem_password_cb * cb,void * u)91 int i2d_PKCS8PrivateKey_bio(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc,
92 const char *pass, int pass_len, pem_password_cb *cb,
93 void *u) {
94 return do_pk8pkey(bp, x, 1, -1, enc, pass, pass_len, cb, u);
95 }
96
i2d_PKCS8PrivateKey_nid_bio(BIO * bp,const EVP_PKEY * x,int nid,const char * pass,int pass_len,pem_password_cb * cb,void * u)97 int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, const EVP_PKEY *x, int nid,
98 const char *pass, int pass_len,
99 pem_password_cb *cb, void *u) {
100 return do_pk8pkey(bp, x, 1, nid, NULL, pass, pass_len, cb, u);
101 }
102
do_pk8pkey(BIO * bp,const EVP_PKEY * x,int isder,int nid,const EVP_CIPHER * enc,const char * pass,int pass_len,pem_password_cb * cb,void * u)103 static int do_pk8pkey(BIO *bp, const EVP_PKEY *x, int isder, int nid,
104 const EVP_CIPHER *enc, const char *pass, int pass_len,
105 pem_password_cb *cb, void *u) {
106 X509_SIG *p8;
107 PKCS8_PRIV_KEY_INFO *p8inf;
108 char buf[PEM_BUFSIZE];
109 int ret;
110 if (!(p8inf = EVP_PKEY2PKCS8(x))) {
111 OPENSSL_PUT_ERROR(PEM, PEM_R_ERROR_CONVERTING_PRIVATE_KEY);
112 return 0;
113 }
114 if (enc || (nid != -1)) {
115 if (!pass) {
116 pass_len = 0;
117 if (!cb) {
118 cb = PEM_def_callback;
119 }
120 pass_len = cb(buf, PEM_BUFSIZE, 1, u);
121 if (pass_len <= 0) {
122 OPENSSL_PUT_ERROR(PEM, PEM_R_READ_KEY);
123 PKCS8_PRIV_KEY_INFO_free(p8inf);
124 return 0;
125 }
126
127 pass = buf;
128 }
129 p8 = PKCS8_encrypt(nid, enc, pass, pass_len, NULL, 0, 0, p8inf);
130 if (pass == buf) {
131 OPENSSL_cleanse(buf, pass_len);
132 }
133 PKCS8_PRIV_KEY_INFO_free(p8inf);
134 if (isder) {
135 ret = i2d_PKCS8_bio(bp, p8);
136 } else {
137 ret = PEM_write_bio_PKCS8(bp, p8);
138 }
139 X509_SIG_free(p8);
140 return ret;
141 } else {
142 if (isder) {
143 ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
144 } else {
145 ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf);
146 }
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,
153 void *u) {
154 PKCS8_PRIV_KEY_INFO *p8inf = NULL;
155 X509_SIG *p8 = NULL;
156 int pass_len;
157 EVP_PKEY *ret;
158 char psbuf[PEM_BUFSIZE];
159 p8 = d2i_PKCS8_bio(bp, NULL);
160 if (!p8) {
161 return NULL;
162 }
163
164 pass_len = 0;
165 if (!cb) {
166 cb = PEM_def_callback;
167 }
168 pass_len = cb(psbuf, PEM_BUFSIZE, 0, u);
169 if (pass_len <= 0) {
170 OPENSSL_PUT_ERROR(PEM, PEM_R_BAD_PASSWORD_READ);
171 X509_SIG_free(p8);
172 return NULL;
173 }
174 p8inf = PKCS8_decrypt(p8, psbuf, pass_len);
175 X509_SIG_free(p8);
176 OPENSSL_cleanse(psbuf, pass_len);
177 if (!p8inf) {
178 return NULL;
179 }
180 ret = EVP_PKCS82PKEY(p8inf);
181 PKCS8_PRIV_KEY_INFO_free(p8inf);
182 if (!ret) {
183 return NULL;
184 }
185 if (x) {
186 if (*x) {
187 EVP_PKEY_free(*x);
188 }
189 *x = ret;
190 }
191 return ret;
192 }
193
194
i2d_PKCS8PrivateKey_fp(FILE * fp,const EVP_PKEY * x,const EVP_CIPHER * enc,const char * pass,int pass_len,pem_password_cb * cb,void * u)195 int i2d_PKCS8PrivateKey_fp(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
196 const char *pass, int pass_len, pem_password_cb *cb,
197 void *u) {
198 return do_pk8pkey_fp(fp, x, 1, -1, enc, pass, pass_len, cb, u);
199 }
200
i2d_PKCS8PrivateKey_nid_fp(FILE * fp,const EVP_PKEY * x,int nid,const char * pass,int pass_len,pem_password_cb * cb,void * u)201 int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, const EVP_PKEY *x, int nid,
202 const char *pass, int pass_len,
203 pem_password_cb *cb, void *u) {
204 return do_pk8pkey_fp(fp, x, 1, nid, NULL, pass, pass_len, cb, u);
205 }
206
PEM_write_PKCS8PrivateKey_nid(FILE * fp,const EVP_PKEY * x,int nid,const char * pass,int pass_len,pem_password_cb * cb,void * u)207 int PEM_write_PKCS8PrivateKey_nid(FILE *fp, const EVP_PKEY *x, int nid,
208 const char *pass, int pass_len,
209 pem_password_cb *cb, void *u) {
210 return do_pk8pkey_fp(fp, x, 0, nid, NULL, pass, pass_len, cb, u);
211 }
212
PEM_write_PKCS8PrivateKey(FILE * fp,const EVP_PKEY * x,const EVP_CIPHER * enc,const char * pass,int pass_len,pem_password_cb * cb,void * u)213 int PEM_write_PKCS8PrivateKey(FILE *fp, const EVP_PKEY *x,
214 const EVP_CIPHER *enc, const char *pass,
215 int pass_len, pem_password_cb *cb, void *u) {
216 return do_pk8pkey_fp(fp, x, 0, -1, enc, pass, pass_len, cb, u);
217 }
218
do_pk8pkey_fp(FILE * fp,const EVP_PKEY * x,int isder,int nid,const EVP_CIPHER * enc,const char * pass,int pass_len,pem_password_cb * cb,void * u)219 static int do_pk8pkey_fp(FILE *fp, const EVP_PKEY *x, int isder, int nid,
220 const EVP_CIPHER *enc, const char *pass, int pass_len,
221 pem_password_cb *cb, void *u) {
222 BIO *bp;
223 int ret;
224 if (!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
225 OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB);
226 return 0;
227 }
228 ret = do_pk8pkey(bp, x, isder, nid, enc, pass, pass_len, cb, u);
229 BIO_free(bp);
230 return ret;
231 }
232
d2i_PKCS8PrivateKey_fp(FILE * fp,EVP_PKEY ** x,pem_password_cb * cb,void * u)233 EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
234 void *u) {
235 BIO *bp;
236 EVP_PKEY *ret;
237 if (!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
238 OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB);
239 return NULL;
240 }
241 ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u);
242 BIO_free(bp);
243 return ret;
244 }
245
246
247 IMPLEMENT_PEM_rw(PKCS8, X509_SIG, PEM_STRING_PKCS8, X509_SIG)
248
249
250 IMPLEMENT_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF,
251 PKCS8_PRIV_KEY_INFO)
252