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
;
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
;
119 i
=PEM_read_bio(bp
,&name
,&header
,&data
,&len
);
122 error
=ERR_GET_REASON(ERR_peek_last_error());
123 if (error
== PEM_R_NO_START_LINE
)
131 if ( (strcmp(name
,PEM_STRING_X509
) == 0) ||
132 (strcmp(name
,PEM_STRING_X509_OLD
) == 0))
134 d2i
=(D2I_OF(void))d2i_X509
;
135 if (xi
->x509
!= NULL
)
137 if (!sk_X509_INFO_push(ret
,xi
)) goto err
;
138 if ((xi
=X509_INFO_new()) == NULL
) goto err
;
143 else if ((strcmp(name
,PEM_STRING_X509_TRUSTED
) == 0))
145 d2i
=(D2I_OF(void))d2i_X509_AUX
;
146 if (xi
->x509
!= NULL
)
148 if (!sk_X509_INFO_push(ret
,xi
)) goto err
;
149 if ((xi
=X509_INFO_new()) == NULL
) goto err
;
154 else if (strcmp(name
,PEM_STRING_X509_CRL
) == 0)
156 d2i
=(D2I_OF(void))d2i_X509_CRL
;
159 if (!sk_X509_INFO_push(ret
,xi
)) goto err
;
160 if ((xi
=X509_INFO_new()) == NULL
) goto err
;
166 #ifndef OPENSSL_NO_RSA
167 if (strcmp(name
,PEM_STRING_RSA
) == 0)
169 d2i
=(D2I_OF(void))d2i_RSAPrivateKey
;
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();
181 if ((xi
->x_pkey
->dec_pkey
=EVP_PKEY_new()) == NULL
)
183 xi
->x_pkey
->dec_pkey
->type
=EVP_PKEY_RSA
;
184 pp
=&(xi
->x_pkey
->dec_pkey
->pkey
.rsa
);
185 if ((int)strlen(header
) > 10) /* assume encrypted */
190 #ifndef OPENSSL_NO_DSA
191 if (strcmp(name
,PEM_STRING_DSA
) == 0)
193 d2i
=(D2I_OF(void))d2i_DSAPrivateKey
;
194 if (xi
->x_pkey
!= NULL
)
196 if (!sk_X509_INFO_push(ret
,xi
)) goto err
;
197 if ((xi
=X509_INFO_new()) == NULL
) goto err
;
204 xi
->x_pkey
=X509_PKEY_new();
205 if ((xi
->x_pkey
->dec_pkey
=EVP_PKEY_new()) == NULL
)
207 xi
->x_pkey
->dec_pkey
->type
=EVP_PKEY_DSA
;
208 pp
=(char **)&(xi
->x_pkey
->dec_pkey
->pkey
.dsa
);
209 if ((int)strlen(header
) > 10) /* assume encrypted */
214 #ifndef OPENSSL_NO_EC
215 if (strcmp(name
,PEM_STRING_ECPRIVATEKEY
) == 0)
217 d2i
=(D2I_OF(void))d2i_ECPrivateKey
;
218 if (xi
->x_pkey
!= NULL
)
220 if (!sk_X509_INFO_push(ret
,xi
)) goto err
;
221 if ((xi
=X509_INFO_new()) == NULL
) goto err
;
228 xi
->x_pkey
=X509_PKEY_new();
229 if ((xi
->x_pkey
->dec_pkey
=EVP_PKEY_new()) == NULL
)
231 xi
->x_pkey
->dec_pkey
->type
=EVP_PKEY_EC
;
232 pp
=&(xi
->x_pkey
->dec_pkey
->pkey
.ec
);
233 if ((int)strlen(header
) > 10) /* assume encrypted */
247 EVP_CIPHER_INFO cipher
;
249 if (!PEM_get_EVP_CIPHER_INFO(header
,&cipher
))
251 if (!PEM_do_header(&cipher
,data
,&len
,cb
,u
))
254 if (d2i(pp
,&p
,len
) == NULL
)
256 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO
,ERR_R_ASN1_LIB
);
261 { /* encrypted RSA data */
262 if (!PEM_get_EVP_CIPHER_INFO(header
,
263 &xi
->enc_cipher
)) goto err
;
264 xi
->enc_data
=(char *)data
;
265 xi
->enc_len
=(int)len
;
272 if (name
!= NULL
) OPENSSL_free(name
);
273 if (header
!= NULL
) OPENSSL_free(header
);
274 if (data
!= NULL
) OPENSSL_free(data
);
280 /* if the last one hasn't been pushed yet and there is anything
281 * in it then add it to the stack ...
283 if ((xi
->x509
!= NULL
) || (xi
->crl
!= NULL
) ||
284 (xi
->x_pkey
!= NULL
) || (xi
->enc_data
!= NULL
))
286 if (!sk_X509_INFO_push(ret
,xi
)) goto err
;
291 if (xi
!= NULL
) X509_INFO_free(xi
);
294 for (i
=0; ((int)i
)<sk_X509_INFO_num(ret
); i
++)
296 xi
=sk_X509_INFO_value(ret
,i
);
299 if (ret
!= sk
) sk_X509_INFO_free(ret
);
303 if (name
!= NULL
) OPENSSL_free(name
);
304 if (header
!= NULL
) OPENSSL_free(header
);
305 if (data
!= NULL
) OPENSSL_free(data
);
311 int PEM_X509_INFO_write_bio(BIO
*bp
, X509_INFO
*xi
, EVP_CIPHER
*enc
,
312 unsigned char *kstr
, int klen
, pem_password_cb
*cb
, void *u
)
316 unsigned char *data
=NULL
;
317 const char *objstr
=NULL
;
318 char buf
[PEM_BUFSIZE
];
319 unsigned char *iv
=NULL
;
323 objstr
=OBJ_nid2sn(EVP_CIPHER_nid(enc
));
326 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO
,PEM_R_UNSUPPORTED_CIPHER
);
331 /* now for the fun part ... if we have a private key then
332 * we have to be able to handle a not-yet-decrypted key
333 * being written out correctly ... if it is decrypted or
334 * it is non-encrypted then we use the base code
336 if (xi
->x_pkey
!=NULL
)
338 if ( (xi
->enc_data
!=NULL
) && (xi
->enc_len
>0) )
340 /* copy from weirdo names into more normal things */
341 iv
=xi
->enc_cipher
.iv
;
342 data
=(unsigned char *)xi
->enc_data
;
345 /* we take the encryption data from the
346 * internal stuff rather than what the
347 * user has passed us ... as we have to
348 * match exactly for some strange reason
351 EVP_CIPHER_nid(xi
->enc_cipher
.cipher
));
354 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO
,PEM_R_UNSUPPORTED_CIPHER
);
358 /* create the right magic header stuff */
359 OPENSSL_assert(strlen(objstr
)+23+2*enc
->iv_len
+13 <= sizeof buf
);
361 PEM_proc_type(buf
,PEM_TYPE_ENCRYPTED
);
362 PEM_dek_info(buf
,objstr
,enc
->iv_len
,(char *)iv
);
364 /* use the normal code to write things out */
365 i
=PEM_write_bio(bp
,PEM_STRING_RSA
,buf
,data
,i
);
366 if (i
<= 0) goto err
;
371 #ifndef OPENSSL_NO_RSA
372 /* normal optionally encrypted stuff */
373 if (PEM_write_bio_RSAPrivateKey(bp
,
374 xi
->x_pkey
->dec_pkey
->pkey
.rsa
,
375 enc
,kstr
,klen
,cb
,u
)<=0)
381 /* if we have a certificate then write it out now */
382 if ((xi
->x509
!= NULL
) && (PEM_write_bio_X509(bp
,xi
->x509
) <= 0))
385 /* we are ignoring anything else that is loaded into the X509_INFO
386 * structure for the moment ... as I don't need it so I'm not
387 * coding it here and Eric can do it when this makes it into the
394 OPENSSL_cleanse((char *)&ctx
,sizeof(ctx
));
395 OPENSSL_cleanse(buf
,PEM_BUFSIZE
);