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;
92 const unsigned char *p;
95 STACK_OF(X509_INFO) *ret=NULL;
97 char *(*d2i)(void *,const unsigned char **,long);
101 if ((ret=sk_X509_INFO_new_null()) == NULL)
103 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
110 if ((xi=X509_INFO_new()) == NULL) goto err;
114 i=PEM_read_bio(bp,&name,&header,&data,&len);
117 error=ERR_GET_REASON(ERR_peek_last_error());
118 if (error == PEM_R_NO_START_LINE)
126 if ( (strcmp(name,PEM_STRING_X509) == 0) ||
127 (strcmp(name,PEM_STRING_X509_OLD) == 0))
129 (D2I_OF(X509))d2i=d2i_X509;
130 if (xi->x509 != NULL)
132 if (!sk_X509_INFO_push(ret,xi)) goto err;
133 if ((xi=X509_INFO_new()) == NULL) goto err;
136 pp=(char **)&(xi->x509);
138 else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
140 (D2I_OF(X509))d2i=d2i_X509_AUX;
141 if (xi->x509 != NULL)
143 if (!sk_X509_INFO_push(ret,xi)) goto err;
144 if ((xi=X509_INFO_new()) == NULL) goto err;
147 pp=(char **)&(xi->x509);
149 else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
151 (D2I_OF(X509_CRL))d2i=d2i_X509_CRL;
154 if (!sk_X509_INFO_push(ret,xi)) goto err;
155 if ((xi=X509_INFO_new()) == NULL) goto err;
158 pp=(char **)&(xi->crl);
161 #ifndef OPENSSL_NO_RSA
162 if (strcmp(name,PEM_STRING_RSA) == 0)
164 (D2I_OF(RSA))d2i=d2i_RSAPrivateKey;
165 if (xi->x_pkey != NULL)
167 if (!sk_X509_INFO_push(ret,xi)) goto err;
168 if ((xi=X509_INFO_new()) == NULL) goto err;
175 xi->x_pkey=X509_PKEY_new();
176 if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
178 xi->x_pkey->dec_pkey->type=EVP_PKEY_RSA;
179 pp=(char **)&(xi->x_pkey->dec_pkey->pkey.rsa);
180 if ((int)strlen(header) > 10) /* assume encrypted */
185 #ifndef OPENSSL_NO_DSA
186 if (strcmp(name,PEM_STRING_DSA) == 0)
188 (D2I_OF(RSA))d2i=d2i_DSAPrivateKey;
189 if (xi->x_pkey != NULL)
191 if (!sk_X509_INFO_push(ret,xi)) goto err;
192 if ((xi=X509_INFO_new()) == NULL) goto err;
199 xi->x_pkey=X509_PKEY_new();
200 if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
202 xi->x_pkey->dec_pkey->type=EVP_PKEY_DSA;
203 pp=(char **)&(xi->x_pkey->dec_pkey->pkey.dsa);
204 if ((int)strlen(header) > 10) /* assume encrypted */
209 #ifndef OPENSSL_NO_EC
210 if (strcmp(name,PEM_STRING_ECPRIVATEKEY) == 0)
212 (D2I_OF(EC_KEY))d2i=d2i_ECPrivateKey;
213 if (xi->x_pkey != NULL)
215 if (!sk_X509_INFO_push(ret,xi)) goto err;
216 if ((xi=X509_INFO_new()) == NULL) goto err;
223 xi->x_pkey=X509_PKEY_new();
224 if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
226 xi->x_pkey->dec_pkey->type=EVP_PKEY_EC;
227 pp=(char **)&(xi->x_pkey->dec_pkey->pkey.eckey);
228 if ((int)strlen(header) > 10) /* assume encrypted */
242 EVP_CIPHER_INFO cipher;
244 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher))
246 if (!PEM_do_header(&cipher,data,&len,cb,u))
249 if (d2i(pp,&p,len) == NULL)
251 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
256 { /* encrypted RSA data */
257 if (!PEM_get_EVP_CIPHER_INFO(header,
258 &xi->enc_cipher)) goto err;
259 xi->enc_data=(char *)data;
260 xi->enc_len=(int)len;
267 if (name != NULL) OPENSSL_free(name);
268 if (header != NULL) OPENSSL_free(header);
269 if (data != NULL) OPENSSL_free(data);
275 /* if the last one hasn't been pushed yet and there is anything
276 * in it then add it to the stack ...
278 if ((xi->x509 != NULL) || (xi->crl != NULL) ||
279 (xi->x_pkey != NULL) || (xi->enc_data != NULL))
281 if (!sk_X509_INFO_push(ret,xi)) goto err;
286 if (xi != NULL) X509_INFO_free(xi);
289 for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
291 xi=sk_X509_INFO_value(ret,i);
294 if (ret != sk) sk_X509_INFO_free(ret);
298 if (name != NULL) OPENSSL_free(name);
299 if (header != NULL) OPENSSL_free(header);
300 if (data != NULL) OPENSSL_free(data);
306 int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
307 unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
311 unsigned char *data=NULL;
312 const char *objstr=NULL;
313 char buf[PEM_BUFSIZE];
314 unsigned char *iv=NULL;
318 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
321 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
326 /* now for the fun part ... if we have a private key then
327 * we have to be able to handle a not-yet-decrypted key
328 * being written out correctly ... if it is decrypted or
329 * it is non-encrypted then we use the base code
331 if (xi->x_pkey!=NULL)
333 if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
335 /* copy from weirdo names into more normal things */
336 iv=xi->enc_cipher.iv;
337 data=(unsigned char *)xi->enc_data;
340 /* we take the encryption data from the
341 * internal stuff rather than what the
342 * user has passed us ... as we have to
343 * match exactly for some strange reason
346 EVP_CIPHER_nid(xi->enc_cipher.cipher));
349 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
353 /* create the right magic header stuff */
354 OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
356 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
357 PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
359 /* use the normal code to write things out */
360 i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
361 if (i <= 0) goto err;
366 #ifndef OPENSSL_NO_RSA
367 /* normal optionally encrypted stuff */
368 if (PEM_write_bio_RSAPrivateKey(bp,
369 xi->x_pkey->dec_pkey->pkey.rsa,
370 enc,kstr,klen,cb,u)<=0)
376 /* if we have a certificate then write it out now */
377 if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0))
380 /* we are ignoring anything else that is loaded into the X509_INFO
381 * structure for the moment ... as I don't need it so I'm not
382 * coding it here and Eric can do it when this makes it into the
389 OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
390 OPENSSL_cleanse(buf,PEM_BUFSIZE);