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 #ifndef OPENSSL_NO_RSA
66 # include <openssl/rsa.h>
68 #ifndef OPENSSL_NO_DSA
69 # include <openssl/dsa.h>
72 #ifndef OPENSSL_NO_STDIO
73 STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk,
74 pem_password_cb *cb, void *u)
77 STACK_OF(X509_INFO) *ret;
79 if ((b = BIO_new(BIO_s_file())) == NULL) {
80 PEMerr(PEM_F_PEM_X509_INFO_READ, ERR_R_BUF_LIB);
83 BIO_set_fp(b, fp, BIO_NOCLOSE);
84 ret = PEM_X509_INFO_read_bio(b, sk, cb, u);
90 STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
91 pem_password_cb *cb, void *u)
94 char *name = NULL, *header = NULL;
96 unsigned char *data = NULL;
97 const unsigned char *p;
100 STACK_OF(X509_INFO) *ret = NULL;
101 unsigned int i, raw, ptype;
102 d2i_of_void *d2i = 0;
105 if ((ret = sk_X509_INFO_new_null()) == NULL) {
106 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO, ERR_R_MALLOC_FAILURE);
112 if ((xi = X509_INFO_new()) == NULL)
117 i = PEM_read_bio(bp, &name, &header, &data, &len);
119 error = ERR_GET_REASON(ERR_peek_last_error());
120 if (error == PEM_R_NO_START_LINE) {
127 if ((strcmp(name, PEM_STRING_X509) == 0) ||
128 (strcmp(name, PEM_STRING_X509_OLD) == 0)) {
129 d2i = (D2I_OF(void)) d2i_X509;
130 if (xi->x509 != NULL) {
131 if (!sk_X509_INFO_push(ret, xi))
133 if ((xi = X509_INFO_new()) == NULL)
138 } else if ((strcmp(name, PEM_STRING_X509_TRUSTED) == 0)) {
139 d2i = (D2I_OF(void)) d2i_X509_AUX;
140 if (xi->x509 != NULL) {
141 if (!sk_X509_INFO_push(ret, xi))
143 if ((xi = X509_INFO_new()) == NULL)
148 } else if (strcmp(name, PEM_STRING_X509_CRL) == 0) {
149 d2i = (D2I_OF(void)) d2i_X509_CRL;
150 if (xi->crl != NULL) {
151 if (!sk_X509_INFO_push(ret, xi))
153 if ((xi = X509_INFO_new()) == NULL)
159 #ifndef OPENSSL_NO_RSA
160 if (strcmp(name, PEM_STRING_RSA) == 0) {
161 d2i = (D2I_OF(void)) d2i_RSAPrivateKey;
162 if (xi->x_pkey != NULL) {
163 if (!sk_X509_INFO_push(ret, xi))
165 if ((xi = X509_INFO_new()) == NULL)
173 xi->x_pkey = X509_PKEY_new();
174 if (xi->x_pkey == NULL)
176 ptype = EVP_PKEY_RSA;
177 pp = &xi->x_pkey->dec_pkey;
178 if ((int)strlen(header) > 10) /* assume encrypted */
182 #ifndef OPENSSL_NO_DSA
183 if (strcmp(name, PEM_STRING_DSA) == 0) {
184 d2i = (D2I_OF(void)) d2i_DSAPrivateKey;
185 if (xi->x_pkey != NULL) {
186 if (!sk_X509_INFO_push(ret, xi))
188 if ((xi = X509_INFO_new()) == NULL)
196 xi->x_pkey = X509_PKEY_new();
197 if (xi->x_pkey == NULL)
199 ptype = EVP_PKEY_DSA;
200 pp = &xi->x_pkey->dec_pkey;
201 if ((int)strlen(header) > 10) /* assume encrypted */
205 #ifndef OPENSSL_NO_EC
206 if (strcmp(name, PEM_STRING_ECPRIVATEKEY) == 0) {
207 d2i = (D2I_OF(void)) d2i_ECPrivateKey;
208 if (xi->x_pkey != NULL) {
209 if (!sk_X509_INFO_push(ret, xi))
211 if ((xi = X509_INFO_new()) == NULL)
219 xi->x_pkey = X509_PKEY_new();
220 if (xi->x_pkey == NULL)
223 pp = &xi->x_pkey->dec_pkey;
224 if ((int)strlen(header) > 10) /* assume encrypted */
235 EVP_CIPHER_INFO cipher;
237 if (!PEM_get_EVP_CIPHER_INFO(header, &cipher))
239 if (!PEM_do_header(&cipher, data, &len, cb, u))
243 if (!d2i_PrivateKey(ptype, pp, &p, len)) {
244 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO, ERR_R_ASN1_LIB);
247 } else if (d2i(pp, &p, len) == NULL) {
248 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO, ERR_R_ASN1_LIB);
251 } else { /* encrypted RSA data */
252 if (!PEM_get_EVP_CIPHER_INFO(header, &xi->enc_cipher))
254 xi->enc_data = (char *)data;
255 xi->enc_len = (int)len;
263 OPENSSL_free(header);
270 * if the last one hasn't been pushed yet and there is anything in it
271 * then add it to the stack ...
273 if ((xi->x509 != NULL) || (xi->crl != NULL) ||
274 (xi->x_pkey != NULL) || (xi->enc_data != NULL)) {
275 if (!sk_X509_INFO_push(ret, xi))
283 for (i = 0; ((int)i) < sk_X509_INFO_num(ret); i++) {
284 xi = sk_X509_INFO_value(ret, i);
288 sk_X509_INFO_free(ret);
293 OPENSSL_free(header);
299 int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
300 unsigned char *kstr, int klen,
301 pem_password_cb *cb, void *u)
304 unsigned char *data = NULL;
305 const char *objstr = NULL;
306 char buf[PEM_BUFSIZE];
307 unsigned char *iv = NULL;
310 objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc));
311 if (objstr == NULL) {
312 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO, PEM_R_UNSUPPORTED_CIPHER);
318 * now for the fun part ... if we have a private key then we have to be
319 * able to handle a not-yet-decrypted key being written out correctly ...
320 * if it is decrypted or it is non-encrypted then we use the base code
322 if (xi->x_pkey != NULL) {
323 if ((xi->enc_data != NULL) && (xi->enc_len > 0)) {
325 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO, PEM_R_CIPHER_IS_NULL);
329 /* copy from weirdo names into more normal things */
330 iv = xi->enc_cipher.iv;
331 data = (unsigned char *)xi->enc_data;
335 * we take the encryption data from the internal stuff rather
336 * than what the user has passed us ... as we have to match
337 * exactly for some strange reason
339 objstr = OBJ_nid2sn(EVP_CIPHER_nid(xi->enc_cipher.cipher));
340 if (objstr == NULL) {
341 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,
342 PEM_R_UNSUPPORTED_CIPHER);
346 /* create the right magic header stuff */
347 OPENSSL_assert(strlen(objstr) + 23
348 + 2 * EVP_CIPHER_iv_length(enc) + 13 <=
351 PEM_proc_type(buf, PEM_TYPE_ENCRYPTED);
352 PEM_dek_info(buf, objstr, EVP_CIPHER_iv_length(enc),
355 /* use the normal code to write things out */
356 i = PEM_write_bio(bp, PEM_STRING_RSA, buf, data, i);
361 #ifndef OPENSSL_NO_RSA
362 /* normal optionally encrypted stuff */
363 if (PEM_write_bio_RSAPrivateKey(bp,
364 EVP_PKEY_get0_RSA(xi->x_pkey->dec_pkey),
365 enc, kstr, klen, cb, u) <= 0)
371 /* if we have a certificate then write it out now */
372 if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp, xi->x509) <= 0))
376 * we are ignoring anything else that is loaded into the X509_INFO
377 * structure for the moment ... as I don't need it so I'm not coding it
378 * here and Eric can do it when this makes it into the base library --tjh
384 OPENSSL_cleanse(buf, PEM_BUFSIZE);