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 #ifndef OPENSSL_NO_RSA
67 #include <openssl/rsa.h>
69 #ifndef OPENSSL_NO_DSA
70 #include <openssl/dsa.h>
73 #ifndef OPENSSL_NO_FP_API
74 STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
77 STACK_OF(X509_INFO) *ret;
79 if ((b=BIO_new(BIO_s_file())) == NULL)
81 PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB);
84 BIO_set_fp(b,fp,BIO_NOCLOSE);
85 ret=PEM_X509_INFO_read_bio(b,sk,cb,u);
91 STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, 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;
106 if ((ret=sk_X509_INFO_new_null()) == NULL)
108 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
115 if ((xi=X509_INFO_new()) == NULL) goto err;
120 i=PEM_read_bio(bp,&name,&header,&data,&len);
123 error=ERR_GET_REASON(ERR_peek_last_error());
124 if (error == PEM_R_NO_START_LINE)
132 if ( (strcmp(name,PEM_STRING_X509) == 0) ||
133 (strcmp(name,PEM_STRING_X509_OLD) == 0))
135 d2i=(D2I_OF(void))d2i_X509;
136 if (xi->x509 != NULL)
138 if (!sk_X509_INFO_push(ret,xi)) goto err;
139 if ((xi=X509_INFO_new()) == NULL) goto err;
144 else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
146 d2i=(D2I_OF(void))d2i_X509_AUX;
147 if (xi->x509 != NULL)
149 if (!sk_X509_INFO_push(ret,xi)) goto err;
150 if ((xi=X509_INFO_new()) == NULL) goto err;
155 else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
157 d2i=(D2I_OF(void))d2i_X509_CRL;
160 if (!sk_X509_INFO_push(ret,xi)) goto err;
161 if ((xi=X509_INFO_new()) == NULL) goto err;
167 #ifndef OPENSSL_NO_RSA
168 if (strcmp(name,PEM_STRING_RSA) == 0)
170 if (xi->x_pkey != NULL)
172 if (!sk_X509_INFO_push(ret,xi)) goto err;
173 if ((xi=X509_INFO_new()) == NULL) goto err;
180 xi->x_pkey=X509_PKEY_new();
182 pp=&xi->x_pkey->dec_pkey;
183 if ((int)strlen(header) > 10) /* assume encrypted */
188 #ifndef OPENSSL_NO_DSA
189 if (strcmp(name,PEM_STRING_DSA) == 0)
191 d2i=(D2I_OF(void))d2i_DSAPrivateKey;
192 if (xi->x_pkey != NULL)
194 if (!sk_X509_INFO_push(ret,xi)) goto err;
195 if ((xi=X509_INFO_new()) == NULL) goto err;
202 xi->x_pkey=X509_PKEY_new();
203 ptype = EVP_PKEY_DSA;
204 pp=&xi->x_pkey->dec_pkey;
205 if ((int)strlen(header) > 10) /* assume encrypted */
210 #ifndef OPENSSL_NO_EC
211 if (strcmp(name,PEM_STRING_ECPRIVATEKEY) == 0)
213 d2i=(D2I_OF(void))d2i_ECPrivateKey;
214 if (xi->x_pkey != NULL)
216 if (!sk_X509_INFO_push(ret,xi)) goto err;
217 if ((xi=X509_INFO_new()) == NULL) goto err;
224 xi->x_pkey=X509_PKEY_new();
226 pp=&xi->x_pkey->dec_pkey;
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))
250 if (!d2i_PrivateKey(ptype, pp, &p, len))
252 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
256 else if (d2i(pp,&p,len) == NULL)
258 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
263 { /* encrypted RSA data */
264 if (!PEM_get_EVP_CIPHER_INFO(header,
265 &xi->enc_cipher)) goto err;
266 xi->enc_data=(char *)data;
267 xi->enc_len=(int)len;
274 if (name != NULL) OPENSSL_free(name);
275 if (header != NULL) OPENSSL_free(header);
276 if (data != NULL) OPENSSL_free(data);
282 /* if the last one hasn't been pushed yet and there is anything
283 * in it then add it to the stack ...
285 if ((xi->x509 != NULL) || (xi->crl != NULL) ||
286 (xi->x_pkey != NULL) || (xi->enc_data != NULL))
288 if (!sk_X509_INFO_push(ret,xi)) goto err;
293 if (xi != NULL) X509_INFO_free(xi);
296 for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
298 xi=sk_X509_INFO_value(ret,i);
301 if (ret != sk) sk_X509_INFO_free(ret);
305 if (name != NULL) OPENSSL_free(name);
306 if (header != NULL) OPENSSL_free(header);
307 if (data != NULL) OPENSSL_free(data);
313 int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
314 unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
318 unsigned char *data=NULL;
319 const char *objstr=NULL;
320 char buf[PEM_BUFSIZE];
321 unsigned char *iv=NULL;
325 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
328 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
333 /* now for the fun part ... if we have a private key then
334 * we have to be able to handle a not-yet-decrypted key
335 * being written out correctly ... if it is decrypted or
336 * it is non-encrypted then we use the base code
338 if (xi->x_pkey!=NULL)
340 if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
344 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_CIPHER_IS_NULL);
348 /* copy from weirdo names into more normal things */
349 iv=xi->enc_cipher.iv;
350 data=(unsigned char *)xi->enc_data;
353 /* we take the encryption data from the
354 * internal stuff rather than what the
355 * user has passed us ... as we have to
356 * match exactly for some strange reason
359 EVP_CIPHER_nid(xi->enc_cipher.cipher));
362 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
366 /* create the right magic header stuff */
367 OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
369 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
370 PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
372 /* use the normal code to write things out */
373 i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
374 if (i <= 0) goto err;
379 #ifndef OPENSSL_NO_RSA
380 /* normal optionally encrypted stuff */
381 if (PEM_write_bio_RSAPrivateKey(bp,
382 xi->x_pkey->dec_pkey->pkey.rsa,
383 enc,kstr,klen,cb,u)<=0)
389 /* if we have a certificate then write it out now */
390 if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0))
393 /* we are ignoring anything else that is loaded into the X509_INFO
394 * structure for the moment ... as I don't need it so I'm not
395 * coding it here and Eric can do it when this makes it into the
402 OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
403 OPENSSL_cleanse(buf,PEM_BUFSIZE);