1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
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)"
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
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.]
59 #include "internal/cryptlib.h"
60 #include <openssl/buffer.h>
61 #include <openssl/objects.h>
62 #include <openssl/evp.h>
63 #include <openssl/rand.h>
64 #include <openssl/x509.h>
65 #include <openssl/pkcs12.h>
66 #include <openssl/pem.h>
67 #ifndef OPENSSL_NO_ENGINE
68 # include <openssl/engine.h>
71 # include <openssl/dh.h>
73 #include "internal/asn1_int.h"
74 #include "internal/evp_int.h"
76 int pem_check_suffix(const char *pem_str, const char *suffix);
78 EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
82 const unsigned char *p = NULL;
83 unsigned char *data = NULL;
88 if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u))
92 if (strcmp(nm, PEM_STRING_PKCS8INF) == 0) {
93 PKCS8_PRIV_KEY_INFO *p8inf;
94 p8inf = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len);
97 ret = EVP_PKCS82PKEY(p8inf);
99 EVP_PKEY_free((EVP_PKEY *)*x);
102 PKCS8_PRIV_KEY_INFO_free(p8inf);
103 } else if (strcmp(nm, PEM_STRING_PKCS8) == 0) {
104 PKCS8_PRIV_KEY_INFO *p8inf;
107 char psbuf[PEM_BUFSIZE];
108 p8 = d2i_X509_SIG(NULL, &p, len);
112 klen = cb(psbuf, PEM_BUFSIZE, 0, u);
114 klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u);
116 PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, PEM_R_BAD_PASSWORD_READ);
120 p8inf = PKCS8_decrypt(p8, psbuf, klen);
124 ret = EVP_PKCS82PKEY(p8inf);
126 EVP_PKEY_free((EVP_PKEY *)*x);
129 PKCS8_PRIV_KEY_INFO_free(p8inf);
130 } else if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0) {
131 const EVP_PKEY_ASN1_METHOD *ameth;
132 ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen);
133 if (!ameth || !ameth->old_priv_decode)
135 ret = d2i_PrivateKey(ameth->pkey_id, x, &p, len);
139 PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, ERR_R_ASN1_LIB);
142 OPENSSL_clear_free(data, len);
146 int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
147 unsigned char *kstr, int klen,
148 pem_password_cb *cb, void *u)
151 if (!x->ameth || x->ameth->priv_encode)
152 return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
153 (char *)kstr, klen, cb, u);
155 BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
156 return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
157 pem_str, bp, x, enc, kstr, klen, cb, u);
160 EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
163 const unsigned char *p = NULL;
164 unsigned char *data = NULL;
167 EVP_PKEY *ret = NULL;
169 if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_PARAMETERS,
174 if ((slen = pem_check_suffix(nm, "PARAMETERS")) > 0) {
175 ret = EVP_PKEY_new();
178 if (!EVP_PKEY_set_type_str(ret, nm, slen)
179 || !ret->ameth->param_decode
180 || !ret->ameth->param_decode(ret, &p, len)) {
186 EVP_PKEY_free((EVP_PKEY *)*x);
192 PEMerr(PEM_F_PEM_READ_BIO_PARAMETERS, ERR_R_ASN1_LIB);
198 int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x)
201 if (!x->ameth || !x->ameth->param_encode)
204 BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
205 return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode,
206 pem_str, bp, x, NULL, NULL, 0, 0, NULL);
209 #ifndef OPENSSL_NO_STDIO
210 EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
216 if ((b = BIO_new(BIO_s_file())) == NULL) {
217 PEMerr(PEM_F_PEM_READ_PRIVATEKEY, ERR_R_BUF_LIB);
220 BIO_set_fp(b, fp, BIO_NOCLOSE);
221 ret = PEM_read_bio_PrivateKey(b, x, cb, u);
226 int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
227 unsigned char *kstr, int klen,
228 pem_password_cb *cb, void *u)
233 if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
234 PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
237 ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
244 #ifndef OPENSSL_NO_DH
246 /* Transparently read in PKCS#3 or X9.42 DH parameters */
248 DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
251 const unsigned char *p = NULL;
252 unsigned char *data = NULL;
256 if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_DHPARAMS, bp, cb, u))
260 if (strcmp(nm, PEM_STRING_DHXPARAMS) == 0)
261 ret = d2i_DHxparams(x, &p, len);
263 ret = d2i_DHparams(x, &p, len);
266 PEMerr(PEM_F_PEM_READ_BIO_DHPARAMS, ERR_R_ASN1_LIB);
272 # ifndef OPENSSL_NO_STDIO
273 DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
278 if ((b = BIO_new(BIO_s_file())) == NULL) {
279 PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
282 BIO_set_fp(b, fp, BIO_NOCLOSE);
283 ret = PEM_read_bio_DHparams(b, x, cb, u);