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/x509.h>
64 #include <openssl/pem.h>
65 #include <openssl/rsa.h>
66 #include <openssl/dsa.h>
68 #ifndef OPENSSL_NO_STDIO
69 STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk,
70 pem_password_cb *cb, void *u)
73 STACK_OF(X509_INFO) *ret;
75 if ((b = BIO_new(BIO_s_file())) == NULL) {
76 PEMerr(PEM_F_PEM_X509_INFO_READ, ERR_R_BUF_LIB);
79 BIO_set_fp(b, fp, BIO_NOCLOSE);
80 ret = PEM_X509_INFO_read_bio(b, sk, cb, u);
86 STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
87 pem_password_cb *cb, void *u)
90 char *name = NULL, *header = NULL;
92 unsigned char *data = NULL;
93 const unsigned char *p;
96 STACK_OF(X509_INFO) *ret = NULL;
97 unsigned int i, raw, ptype;
101 if ((ret = sk_X509_INFO_new_null()) == NULL) {
102 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO, ERR_R_MALLOC_FAILURE);
108 if ((xi = X509_INFO_new()) == NULL)
113 i = PEM_read_bio(bp, &name, &header, &data, &len);
115 error = ERR_GET_REASON(ERR_peek_last_error());
116 if (error == PEM_R_NO_START_LINE) {
123 if ((strcmp(name, PEM_STRING_X509) == 0) ||
124 (strcmp(name, PEM_STRING_X509_OLD) == 0)) {
125 d2i = (D2I_OF(void)) d2i_X509;
126 if (xi->x509 != NULL) {
127 if (!sk_X509_INFO_push(ret, xi))
129 if ((xi = X509_INFO_new()) == NULL)
134 } else if ((strcmp(name, PEM_STRING_X509_TRUSTED) == 0)) {
135 d2i = (D2I_OF(void)) d2i_X509_AUX;
136 if (xi->x509 != NULL) {
137 if (!sk_X509_INFO_push(ret, xi))
139 if ((xi = X509_INFO_new()) == NULL)
144 } else if (strcmp(name, PEM_STRING_X509_CRL) == 0) {
145 d2i = (D2I_OF(void)) d2i_X509_CRL;
146 if (xi->crl != NULL) {
147 if (!sk_X509_INFO_push(ret, xi))
149 if ((xi = X509_INFO_new()) == NULL)
155 #ifndef OPENSSL_NO_RSA
156 if (strcmp(name, PEM_STRING_RSA) == 0) {
157 d2i = (D2I_OF(void)) d2i_RSAPrivateKey;
158 if (xi->x_pkey != NULL) {
159 if (!sk_X509_INFO_push(ret, xi))
161 if ((xi = X509_INFO_new()) == NULL)
169 xi->x_pkey = X509_PKEY_new();
170 if (xi->x_pkey == NULL)
172 ptype = EVP_PKEY_RSA;
173 pp = &xi->x_pkey->dec_pkey;
174 if ((int)strlen(header) > 10) /* assume encrypted */
178 #ifndef OPENSSL_NO_DSA
179 if (strcmp(name, PEM_STRING_DSA) == 0) {
180 d2i = (D2I_OF(void)) d2i_DSAPrivateKey;
181 if (xi->x_pkey != NULL) {
182 if (!sk_X509_INFO_push(ret, xi))
184 if ((xi = X509_INFO_new()) == NULL)
192 xi->x_pkey = X509_PKEY_new();
193 if (xi->x_pkey == NULL)
195 ptype = EVP_PKEY_DSA;
196 pp = &xi->x_pkey->dec_pkey;
197 if ((int)strlen(header) > 10) /* assume encrypted */
201 #ifndef OPENSSL_NO_EC
202 if (strcmp(name, PEM_STRING_ECPRIVATEKEY) == 0) {
203 d2i = (D2I_OF(void)) d2i_ECPrivateKey;
204 if (xi->x_pkey != NULL) {
205 if (!sk_X509_INFO_push(ret, xi))
207 if ((xi = X509_INFO_new()) == NULL)
215 xi->x_pkey = X509_PKEY_new();
216 if (xi->x_pkey == NULL)
219 pp = &xi->x_pkey->dec_pkey;
220 if ((int)strlen(header) > 10) /* assume encrypted */
231 EVP_CIPHER_INFO cipher;
233 if (!PEM_get_EVP_CIPHER_INFO(header, &cipher))
235 if (!PEM_do_header(&cipher, data, &len, cb, u))
239 if (!d2i_PrivateKey(ptype, pp, &p, len)) {
240 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO, ERR_R_ASN1_LIB);
243 } else if (d2i(pp, &p, len) == NULL) {
244 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO, ERR_R_ASN1_LIB);
247 } else { /* encrypted RSA data */
248 if (!PEM_get_EVP_CIPHER_INFO(header, &xi->enc_cipher))
250 xi->enc_data = (char *)data;
251 xi->enc_len = (int)len;
259 OPENSSL_free(header);
266 * if the last one hasn't been pushed yet and there is anything in it
267 * then add it to the stack ...
269 if ((xi->x509 != NULL) || (xi->crl != NULL) ||
270 (xi->x_pkey != NULL) || (xi->enc_data != NULL)) {
271 if (!sk_X509_INFO_push(ret, xi))
279 for (i = 0; ((int)i) < sk_X509_INFO_num(ret); i++) {
280 xi = sk_X509_INFO_value(ret, i);
284 sk_X509_INFO_free(ret);
289 OPENSSL_free(header);
295 int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
296 unsigned char *kstr, int klen,
297 pem_password_cb *cb, void *u)
300 unsigned char *data = NULL;
301 const char *objstr = NULL;
302 char buf[PEM_BUFSIZE];
303 unsigned char *iv = NULL;
306 objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc));
307 if (objstr == NULL) {
308 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO, PEM_R_UNSUPPORTED_CIPHER);
314 * now for the fun part ... if we have a private key then we have to be
315 * able to handle a not-yet-decrypted key being written out correctly ...
316 * if it is decrypted or it is non-encrypted then we use the base code
318 if (xi->x_pkey != NULL) {
319 if ((xi->enc_data != NULL) && (xi->enc_len > 0)) {
321 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO, PEM_R_CIPHER_IS_NULL);
325 /* copy from weirdo names into more normal things */
326 iv = xi->enc_cipher.iv;
327 data = (unsigned char *)xi->enc_data;
331 * we take the encryption data from the internal stuff rather
332 * than what the user has passed us ... as we have to match
333 * exactly for some strange reason
335 objstr = OBJ_nid2sn(EVP_CIPHER_nid(xi->enc_cipher.cipher));
336 if (objstr == NULL) {
337 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,
338 PEM_R_UNSUPPORTED_CIPHER);
342 /* create the right magic header stuff */
343 OPENSSL_assert(strlen(objstr) + 23
344 + 2 * EVP_CIPHER_iv_length(enc) + 13 <=
347 PEM_proc_type(buf, PEM_TYPE_ENCRYPTED);
348 PEM_dek_info(buf, objstr, EVP_CIPHER_iv_length(enc),
351 /* use the normal code to write things out */
352 i = PEM_write_bio(bp, PEM_STRING_RSA, buf, data, i);
357 #ifndef OPENSSL_NO_RSA
358 /* normal optionally encrypted stuff */
359 if (PEM_write_bio_RSAPrivateKey(bp,
360 EVP_PKEY_get0_RSA(xi->x_pkey->dec_pkey),
361 enc, kstr, klen, cb, u) <= 0)
367 /* if we have a certificate then write it out now */
368 if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp, xi->x509) <= 0))
372 * we are ignoring anything else that is loaded into the X509_INFO
373 * structure for the moment ... as I don't need it so I'm not coding it
374 * here and Eric can do it when this makes it into the base library --tjh
380 OPENSSL_cleanse(buf, PEM_BUFSIZE);