1 /* crypto/pem/pem_info.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
61 #include <openssl/buffer.h>
62 #include <openssl/objects.h>
63 #include <openssl/evp.h>
64 #include <openssl/x509.h>
65 #include <openssl/pem.h>
66 #include <openssl/rsa.h>
67 #include <openssl/dsa.h>
69 #ifndef OPENSSL_NO_FP_API
70 STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
73 STACK_OF(X509_INFO) *ret;
75 if ((b=BIO_new(BIO_s_file())) == NULL)
77 PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB);
80 BIO_set_fp(b,fp,BIO_NOCLOSE);
81 ret=PEM_X509_INFO_read_bio(b,sk,cb,u);
87 STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
90 char *name=NULL,*header=NULL,**pp;
91 unsigned char *data=NULL,*p;
94 STACK_OF(X509_INFO) *ret=NULL;
100 if ((ret=sk_X509_INFO_new_null()) == NULL)
102 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
109 if ((xi=X509_INFO_new()) == NULL) goto err;
113 i=PEM_read_bio(bp,&name,&header,&data,&len);
116 error=ERR_GET_REASON(ERR_peek_last_error());
117 if (error == PEM_R_NO_START_LINE)
125 if ( (strcmp(name,PEM_STRING_X509) == 0) ||
126 (strcmp(name,PEM_STRING_X509_OLD) == 0))
128 d2i=(char *(*)())d2i_X509;
129 if (xi->x509 != NULL)
131 if (!sk_X509_INFO_push(ret,xi)) goto err;
132 if ((xi=X509_INFO_new()) == NULL) goto err;
135 pp=(char **)&(xi->x509);
137 else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
139 d2i=(char *(*)())d2i_X509_AUX;
140 if (xi->x509 != NULL)
142 if (!sk_X509_INFO_push(ret,xi)) goto err;
143 if ((xi=X509_INFO_new()) == NULL) goto err;
146 pp=(char **)&(xi->x509);
148 else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
150 d2i=(char *(*)())d2i_X509_CRL;
153 if (!sk_X509_INFO_push(ret,xi)) goto err;
154 if ((xi=X509_INFO_new()) == NULL) goto err;
157 pp=(char **)&(xi->crl);
160 #ifndef OPENSSL_NO_RSA
161 if (strcmp(name,PEM_STRING_RSA) == 0)
163 d2i=(char *(*)())d2i_RSAPrivateKey;
164 if (xi->x_pkey != NULL)
166 if (!sk_X509_INFO_push(ret,xi)) goto err;
167 if ((xi=X509_INFO_new()) == NULL) goto err;
174 xi->x_pkey=X509_PKEY_new();
175 if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
177 xi->x_pkey->dec_pkey->type=EVP_PKEY_RSA;
178 pp=(char **)&(xi->x_pkey->dec_pkey->pkey.rsa);
179 if ((int)strlen(header) > 10) /* assume encrypted */
184 #ifndef OPENSSL_NO_DSA
185 if (strcmp(name,PEM_STRING_DSA) == 0)
187 d2i=(char *(*)())d2i_DSAPrivateKey;
188 if (xi->x_pkey != NULL)
190 if (!sk_X509_INFO_push(ret,xi)) goto err;
191 if ((xi=X509_INFO_new()) == NULL) goto err;
198 xi->x_pkey=X509_PKEY_new();
199 if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
201 xi->x_pkey->dec_pkey->type=EVP_PKEY_DSA;
202 pp=(char **)&(xi->x_pkey->dec_pkey->pkey.dsa);
203 if ((int)strlen(header) > 10) /* assume encrypted */
208 #ifndef OPENSSL_NO_EC
209 if (strcmp(name,PEM_STRING_ECPRIVATEKEY) == 0)
211 d2i=(char *(*)())d2i_ECPrivateKey;
212 if (xi->x_pkey != NULL)
214 if (!sk_X509_INFO_push(ret,xi)) goto err;
215 if ((xi=X509_INFO_new()) == NULL) goto err;
222 xi->x_pkey=X509_PKEY_new();
223 if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
225 xi->x_pkey->dec_pkey->type=EVP_PKEY_EC;
226 pp=(char **)&(xi->x_pkey->dec_pkey->pkey.eckey);
227 if ((int)strlen(header) > 10) /* assume encrypted */
241 EVP_CIPHER_INFO cipher;
243 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher))
245 if (!PEM_do_header(&cipher,data,&len,cb,u))
248 if (d2i(pp,&p,len) == NULL)
250 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
255 { /* encrypted RSA data */
256 if (!PEM_get_EVP_CIPHER_INFO(header,
257 &xi->enc_cipher)) goto err;
258 xi->enc_data=(char *)data;
259 xi->enc_len=(int)len;
266 if (name != NULL) OPENSSL_free(name);
267 if (header != NULL) OPENSSL_free(header);
268 if (data != NULL) OPENSSL_free(data);
274 /* if the last one hasn't been pushed yet and there is anything
275 * in it then add it to the stack ...
277 if ((xi->x509 != NULL) || (xi->crl != NULL) ||
278 (xi->x_pkey != NULL) || (xi->enc_data != NULL))
280 if (!sk_X509_INFO_push(ret,xi)) goto err;
285 if (xi != NULL) X509_INFO_free(xi);
288 for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
290 xi=sk_X509_INFO_value(ret,i);
293 if (ret != sk) sk_X509_INFO_free(ret);
297 if (name != NULL) OPENSSL_free(name);
298 if (header != NULL) OPENSSL_free(header);
299 if (data != NULL) OPENSSL_free(data);
305 int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
306 unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
310 unsigned char *data=NULL;
311 const char *objstr=NULL;
312 char buf[PEM_BUFSIZE];
313 unsigned char *iv=NULL;
317 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
320 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
325 /* now for the fun part ... if we have a private key then
326 * we have to be able to handle a not-yet-decrypted key
327 * being written out correctly ... if it is decrypted or
328 * it is non-encrypted then we use the base code
330 if (xi->x_pkey!=NULL)
332 if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
334 /* copy from weirdo names into more normal things */
335 iv=xi->enc_cipher.iv;
336 data=(unsigned char *)xi->enc_data;
339 /* we take the encryption data from the
340 * internal stuff rather than what the
341 * user has passed us ... as we have to
342 * match exactly for some strange reason
345 EVP_CIPHER_nid(xi->enc_cipher.cipher));
348 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
352 /* create the right magic header stuff */
353 OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
355 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
356 PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
358 /* use the normal code to write things out */
359 i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
360 if (i <= 0) goto err;
365 #ifndef OPENSSL_NO_RSA
366 /* normal optionally encrypted stuff */
367 if (PEM_write_bio_RSAPrivateKey(bp,
368 xi->x_pkey->dec_pkey->pkey.rsa,
369 enc,kstr,klen,cb,u)<=0)
375 /* if we have a certificate then write it out now */
376 if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0))
379 /* we are ignoring anything else that is loaded into the X509_INFO
380 * structure for the moment ... as I don't need it so I'm not
381 * coding it here and Eric can do it when this makes it into the
388 OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
389 OPENSSL_cleanse(buf,PEM_BUFSIZE);