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,
75 pem_password_cb *cb, void *u)
78 STACK_OF(X509_INFO) *ret;
80 if ((b=BIO_new(BIO_s_file())) == NULL)
82 PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB);
85 BIO_set_fp(b,fp,BIO_NOCLOSE);
86 ret=PEM_X509_INFO_read_bio(b,sk,cb,u);
92 STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
93 pem_password_cb *cb, void *u)
96 char *name=NULL,*header=NULL;
98 unsigned char *data=NULL;
99 const unsigned char *p;
102 STACK_OF(X509_INFO) *ret=NULL;
103 unsigned int i,raw,ptype;
104 d2i_of_void *d2i = 0;
108 if ((ret=sk_X509_INFO_new_null()) == NULL)
110 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
117 if ((xi=X509_INFO_new()) == NULL) goto err;
122 i=PEM_read_bio(bp,&name,&header,&data,&len);
125 error=ERR_GET_REASON(ERR_peek_last_error());
126 if (error == PEM_R_NO_START_LINE)
134 if ( (strcmp(name,PEM_STRING_X509) == 0) ||
135 (strcmp(name,PEM_STRING_X509_OLD) == 0))
137 d2i=(D2I_OF(void))d2i_X509;
138 if (xi->x509 != NULL)
140 if (!sk_X509_INFO_push(ret,xi)) goto err;
141 if ((xi=X509_INFO_new()) == NULL) goto err;
146 else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
148 d2i=(D2I_OF(void))d2i_X509_AUX;
149 if (xi->x509 != NULL)
151 if (!sk_X509_INFO_push(ret,xi)) goto err;
152 if ((xi=X509_INFO_new()) == NULL) goto err;
157 else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
159 d2i=(D2I_OF(void))d2i_X509_CRL;
162 if (!sk_X509_INFO_push(ret,xi)) goto err;
163 if ((xi=X509_INFO_new()) == NULL) goto err;
169 #ifndef OPENSSL_NO_RSA
170 if (strcmp(name,PEM_STRING_RSA) == 0)
172 if (xi->x_pkey != NULL)
174 if (!sk_X509_INFO_push(ret,xi)) goto err;
175 if ((xi=X509_INFO_new()) == NULL) goto err;
182 xi->x_pkey=X509_PKEY_new();
184 pp=&xi->x_pkey->dec_pkey;
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 ptype = EVP_PKEY_DSA;
206 pp=&xi->x_pkey->dec_pkey;
207 if ((int)strlen(header) > 10) /* assume encrypted */
212 #ifndef OPENSSL_NO_EC
213 if (strcmp(name,PEM_STRING_ECPRIVATEKEY) == 0)
215 d2i=(D2I_OF(void))d2i_ECPrivateKey;
216 if (xi->x_pkey != NULL)
218 if (!sk_X509_INFO_push(ret,xi)) goto err;
219 if ((xi=X509_INFO_new()) == NULL) goto err;
226 xi->x_pkey=X509_PKEY_new();
228 pp=&xi->x_pkey->dec_pkey;
229 if ((int)strlen(header) > 10) /* assume encrypted */
243 EVP_CIPHER_INFO cipher;
245 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher))
247 if (!PEM_do_header(&cipher,data,&len,cb,u))
252 if (!d2i_PrivateKey(ptype, pp, &p, len))
254 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
258 else if (d2i(pp,&p,len) == NULL)
260 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
265 { /* encrypted RSA data */
266 if (!PEM_get_EVP_CIPHER_INFO(header,
267 &xi->enc_cipher)) goto err;
268 xi->enc_data=(char *)data;
269 xi->enc_len=(int)len;
276 if (name != NULL) OPENSSL_free(name);
277 if (header != NULL) OPENSSL_free(header);
278 if (data != NULL) OPENSSL_free(data);
284 /* if the last one hasn't been pushed yet and there is anything
285 * in it then add it to the stack ...
287 if ((xi->x509 != NULL) || (xi->crl != NULL) ||
288 (xi->x_pkey != NULL) || (xi->enc_data != NULL))
290 if (!sk_X509_INFO_push(ret,xi)) goto err;
295 if (xi != NULL) X509_INFO_free(xi);
298 for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
300 xi=sk_X509_INFO_value(ret,i);
303 if (ret != sk) sk_X509_INFO_free(ret);
307 if (name != NULL) OPENSSL_free(name);
308 if (header != NULL) OPENSSL_free(header);
309 if (data != NULL) OPENSSL_free(data);
315 int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
316 unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
320 unsigned char *data=NULL;
321 const char *objstr=NULL;
322 char buf[PEM_BUFSIZE];
323 unsigned char *iv=NULL;
327 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
330 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
335 /* now for the fun part ... if we have a private key then
336 * we have to be able to handle a not-yet-decrypted key
337 * being written out correctly ... if it is decrypted or
338 * it is non-encrypted then we use the base code
340 if (xi->x_pkey!=NULL)
342 if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
346 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_CIPHER_IS_NULL);
350 /* copy from weirdo names into more normal things */
351 iv=xi->enc_cipher.iv;
352 data=(unsigned char *)xi->enc_data;
355 /* we take the encryption data from the
356 * internal stuff rather than what the
357 * user has passed us ... as we have to
358 * match exactly for some strange reason
361 EVP_CIPHER_nid(xi->enc_cipher.cipher));
364 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
368 /* create the right magic header stuff */
369 OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
371 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
372 PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
374 /* use the normal code to write things out */
375 i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
376 if (i <= 0) goto err;
381 #ifndef OPENSSL_NO_RSA
382 /* normal optionally encrypted stuff */
383 if (PEM_write_bio_RSAPrivateKey(bp,
384 xi->x_pkey->dec_pkey->pkey.rsa,
385 enc,kstr,klen,cb,u)<=0)
391 /* if we have a certificate then write it out now */
392 if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0))
395 /* we are ignoring anything else that is loaded into the X509_INFO
396 * structure for the moment ... as I don't need it so I'm not
397 * coding it here and Eric can do it when this makes it into the
404 OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
405 OPENSSL_cleanse(buf,PEM_BUFSIZE);