Fix some obvious bugs in the PKCS#7 library handling. It didn't try to
[openssl.git] / crypto / pkcs7 / pkcs7.h
1 /* crypto/pkcs7/pkcs7.h */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
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.
8  * 
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).
15  * 
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.
22  * 
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
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)"
40  * 
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
51  * SUCH DAMAGE.
52  * 
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.]
57  */
58
59 #ifndef HEADER_PKCS7_H
60 #define HEADER_PKCS7_H
61
62 #ifdef  __cplusplus
63 extern "C" {
64 #endif
65
66 #include <openssl/bio.h>
67 #include <openssl/x509.h>
68
69 /*
70 Encryption_ID           DES-CBC
71 Digest_ID               MD5
72 Digest_Encryption_ID    rsaEncryption
73 Key_Encryption_ID       rsaEncryption
74 */
75
76 typedef struct pkcs7_issuer_and_serial_st
77         {
78         X509_NAME *issuer;
79         ASN1_INTEGER *serial;
80         } PKCS7_ISSUER_AND_SERIAL;
81
82 typedef struct pkcs7_signer_info_st
83         {
84         ASN1_INTEGER                    *version;       /* version 1 */
85         PKCS7_ISSUER_AND_SERIAL         *issuer_and_serial;
86         X509_ALGOR                      *digest_alg;
87         STACK /* X509_ATTRIBUTE */      *auth_attr;     /* [ 0 ] */
88         X509_ALGOR                      *digest_enc_alg;
89         ASN1_OCTET_STRING               *enc_digest;
90         STACK /* X509_ATTRIBUTE */      *unauth_attr;   /* [ 1 ] */
91
92         /* The private key to sign with */
93         EVP_PKEY                        *pkey;
94         } PKCS7_SIGNER_INFO;
95
96 typedef struct pkcs7_recip_info_st
97         {
98         ASN1_INTEGER                    *version;       /* version 0 */
99         PKCS7_ISSUER_AND_SERIAL         *issuer_and_serial;
100         X509_ALGOR                      *key_enc_algor;
101         ASN1_OCTET_STRING               *enc_key;
102         X509                            *cert; /* get the pub-key from this */
103         } PKCS7_RECIP_INFO;
104
105 typedef struct pkcs7_signed_st
106         {
107         ASN1_INTEGER                    *version;       /* version 1 */
108         STACK /* X509_ALGOR's */        *md_algs;       /* md used */
109         STACK_OF(X509)                  *cert;          /* [ 0 ] */
110         STACK /* X509_CRL */            *crl;           /* [ 1 ] */
111         STACK /* PKCS7_SIGNER_INFO */   *signer_info;
112
113         struct pkcs7_st                 *contents;
114         } PKCS7_SIGNED;
115 /* The above structure is very very similar to PKCS7_SIGN_ENVELOPE.
116  * How about merging the two */
117
118 typedef struct pkcs7_enc_content_st
119         {
120         ASN1_OBJECT                     *content_type;
121         X509_ALGOR                      *algorithm;
122         ASN1_OCTET_STRING               *enc_data;      /* [ 0 ] */
123         const EVP_CIPHER                *cipher;
124         } PKCS7_ENC_CONTENT;
125
126 typedef struct pkcs7_enveloped_st
127         {
128         ASN1_INTEGER                    *version;       /* version 0 */
129         STACK /* PKCS7_RECIP_INFO */    *recipientinfo;
130         PKCS7_ENC_CONTENT               *enc_data;
131         } PKCS7_ENVELOPE;
132
133 typedef struct pkcs7_signedandenveloped_st
134         {
135         ASN1_INTEGER                    *version;       /* version 1 */
136         STACK /* X509_ALGOR's */        *md_algs;       /* md used */
137         STACK_OF(X509)                  *cert;          /* [ 0 ] */
138         STACK /* X509_CRL */            *crl;           /* [ 1 ] */
139         STACK /* PKCS7_SIGNER_INFO */   *signer_info;
140
141         PKCS7_ENC_CONTENT               *enc_data;
142         STACK /* PKCS7_RECIP_INFO */    *recipientinfo;
143         } PKCS7_SIGN_ENVELOPE;
144
145 typedef struct pkcs7_digest_st
146         {
147         ASN1_INTEGER                    *version;       /* version 0 */
148         X509_ALGOR                      *md;            /* md used */
149         struct pkcs7_st                 *contents;
150         ASN1_OCTET_STRING               *digest;
151         } PKCS7_DIGEST;
152
153 typedef struct pkcs7_encrypted_st
154         {
155         ASN1_INTEGER                    *version;       /* version 0 */
156         PKCS7_ENC_CONTENT               *enc_data;
157         } PKCS7_ENCRYPT;
158
159 typedef struct pkcs7_st
160         {
161         /* The following is non NULL if it contains ASN1 encoding of
162          * this structure */
163         unsigned char *asn1;
164         long length;
165
166 #define PKCS7_S_HEADER  0
167 #define PKCS7_S_BODY    1
168 #define PKCS7_S_TAIL    2
169         int state; /* used during processing */
170
171         int detached;
172
173         ASN1_OBJECT *type;
174         /* content as defined by the type */
175         /* all encryption/message digests are applied to the 'contents',
176          * leaving out the 'type' field. */
177         union   {
178                 char *ptr;
179
180                 /* NID_pkcs7_data */
181                 ASN1_OCTET_STRING *data;
182
183                 /* NID_pkcs7_signed */
184                 PKCS7_SIGNED *sign;
185
186                 /* NID_pkcs7_enveloped */
187                 PKCS7_ENVELOPE *enveloped;
188
189                 /* NID_pkcs7_signedAndEnveloped */
190                 PKCS7_SIGN_ENVELOPE *signed_and_enveloped;
191
192                 /* NID_pkcs7_digest */
193                 PKCS7_DIGEST *digest;
194
195                 /* NID_pkcs7_encrypted */
196                 PKCS7_ENCRYPT *encrypted;
197                 } d;
198         } PKCS7;
199
200 #define PKCS7_OP_SET_DETACHED_SIGNATURE 1
201 #define PKCS7_OP_GET_DETACHED_SIGNATURE 2
202
203 #define PKCS7_get_signed_attributes(si) ((si)->auth_attr)
204 #define PKCS7_get_attributes(si)        ((si)->unauth_attr)
205
206 #define PKCS7_type_is_signed(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_signed)
207 #define PKCS7_type_is_signedAndEnveloped(a) \
208                 (OBJ_obj2nid((a)->type) == NID_pkcs7_signedAndEnveloped)
209 #define PKCS7_type_is_data(a)   (OBJ_obj2nid((a)->type) == NID_pkcs7_data)
210
211 #define PKCS7_set_detached(p,v) \
212                 PKCS7_ctrl(p,PKCS7_OP_SET_DETACHED_SIGNATURE,v,NULL)
213 #define PKCS7_get_detached(p) \
214                 PKCS7_ctrl(p,PKCS7_OP_GET_DETACHED_SIGNATURE,0,NULL)
215
216 #ifdef SSLEAY_MACROS
217 #ifndef PKCS7_ISSUER_AND_SERIAL_digest
218 #define PKCS7_ISSUER_AND_SERIAL_digest(data,type,md,len) \
219         ASN1_digest((int (*)())i2d_PKCS7_ISSUER_AND_SERIAL,type,\
220                         (char *)data,md,len)
221 #endif
222 #endif
223
224
225 PKCS7_ISSUER_AND_SERIAL *PKCS7_ISSUER_AND_SERIAL_new(void );
226 void                    PKCS7_ISSUER_AND_SERIAL_free(
227                                 PKCS7_ISSUER_AND_SERIAL *a);
228 int                     i2d_PKCS7_ISSUER_AND_SERIAL(
229                                 PKCS7_ISSUER_AND_SERIAL *a,unsigned char **pp);
230 PKCS7_ISSUER_AND_SERIAL *d2i_PKCS7_ISSUER_AND_SERIAL(
231                                 PKCS7_ISSUER_AND_SERIAL **a,
232                                 unsigned char **pp, long length);
233
234 #ifndef SSLEAY_MACROS
235 int PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,EVP_MD *type,
236         unsigned char *md,unsigned int *len);
237 #ifndef NO_FP_API
238 PKCS7 *d2i_PKCS7_fp(FILE *fp,PKCS7 *p7);
239 int i2d_PKCS7_fp(FILE *fp,PKCS7 *p7);
240 #endif
241 PKCS7 *PKCS7_dup(PKCS7 *p7);
242 PKCS7 *d2i_PKCS7_bio(BIO *bp,PKCS7 *p7);
243 int i2d_PKCS7_bio(BIO *bp,PKCS7 *p7);
244 #endif
245
246 PKCS7_SIGNER_INFO       *PKCS7_SIGNER_INFO_new(void);
247 void                    PKCS7_SIGNER_INFO_free(PKCS7_SIGNER_INFO *a);
248 int                     i2d_PKCS7_SIGNER_INFO(PKCS7_SIGNER_INFO *a,
249                                 unsigned char **pp);
250 PKCS7_SIGNER_INFO       *d2i_PKCS7_SIGNER_INFO(PKCS7_SIGNER_INFO **a,
251                                 unsigned char **pp,long length);
252
253 PKCS7_RECIP_INFO        *PKCS7_RECIP_INFO_new(void);
254 void                    PKCS7_RECIP_INFO_free(PKCS7_RECIP_INFO *a);
255 int                     i2d_PKCS7_RECIP_INFO(PKCS7_RECIP_INFO *a,
256                                 unsigned char **pp);
257 PKCS7_RECIP_INFO        *d2i_PKCS7_RECIP_INFO(PKCS7_RECIP_INFO **a,
258                                 unsigned char **pp,long length);
259
260 PKCS7_SIGNED            *PKCS7_SIGNED_new(void);
261 void                    PKCS7_SIGNED_free(PKCS7_SIGNED *a);
262 int                     i2d_PKCS7_SIGNED(PKCS7_SIGNED *a,
263                                 unsigned char **pp);
264 PKCS7_SIGNED            *d2i_PKCS7_SIGNED(PKCS7_SIGNED **a,
265                                 unsigned char **pp,long length);
266
267 PKCS7_ENC_CONTENT       *PKCS7_ENC_CONTENT_new(void);
268 void                    PKCS7_ENC_CONTENT_free(PKCS7_ENC_CONTENT *a);
269 int                     i2d_PKCS7_ENC_CONTENT(PKCS7_ENC_CONTENT *a,
270                                 unsigned char **pp);
271 PKCS7_ENC_CONTENT       *d2i_PKCS7_ENC_CONTENT(PKCS7_ENC_CONTENT **a,
272                                 unsigned char **pp,long length);
273
274 PKCS7_ENVELOPE          *PKCS7_ENVELOPE_new(void);
275 void                    PKCS7_ENVELOPE_free(PKCS7_ENVELOPE *a);
276 int                     i2d_PKCS7_ENVELOPE(PKCS7_ENVELOPE *a,
277                                 unsigned char **pp);
278 PKCS7_ENVELOPE          *d2i_PKCS7_ENVELOPE(PKCS7_ENVELOPE **a,
279                                 unsigned char **pp,long length);
280
281 PKCS7_SIGN_ENVELOPE     *PKCS7_SIGN_ENVELOPE_new(void);
282 void                    PKCS7_SIGN_ENVELOPE_free(PKCS7_SIGN_ENVELOPE *a);
283 int                     i2d_PKCS7_SIGN_ENVELOPE(PKCS7_SIGN_ENVELOPE *a,
284                                 unsigned char **pp);
285 PKCS7_SIGN_ENVELOPE     *d2i_PKCS7_SIGN_ENVELOPE(PKCS7_SIGN_ENVELOPE **a,
286                                 unsigned char **pp,long length);
287
288 PKCS7_DIGEST            *PKCS7_DIGEST_new(void);
289 void                    PKCS7_DIGEST_free(PKCS7_DIGEST *a);
290 int                     i2d_PKCS7_DIGEST(PKCS7_DIGEST *a,
291                                 unsigned char **pp);
292 PKCS7_DIGEST            *d2i_PKCS7_DIGEST(PKCS7_DIGEST **a,
293                                 unsigned char **pp,long length);
294
295 PKCS7_ENCRYPT           *PKCS7_ENCRYPT_new(void);
296 void                    PKCS7_ENCRYPT_free(PKCS7_ENCRYPT *a);
297 int                     i2d_PKCS7_ENCRYPT(PKCS7_ENCRYPT *a,
298                                 unsigned char **pp);
299 PKCS7_ENCRYPT           *d2i_PKCS7_ENCRYPT(PKCS7_ENCRYPT **a,
300                                 unsigned char **pp,long length);
301
302 PKCS7                   *PKCS7_new(void);
303 void                    PKCS7_free(PKCS7 *a);
304 void                    PKCS7_content_free(PKCS7 *a);
305 int                     i2d_PKCS7(PKCS7 *a,
306                                 unsigned char **pp);
307 PKCS7                   *d2i_PKCS7(PKCS7 **a,
308                                 unsigned char **pp,long length);
309
310 void ERR_load_PKCS7_strings(void);
311
312
313 long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg);
314
315 int PKCS7_set_type(PKCS7 *p7, int type);
316 int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data);
317 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
318         EVP_MD *dgst);
319 int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *p7i);
320 int PKCS7_add_certificate(PKCS7 *p7, X509 *x509);
321 int PKCS7_add_crl(PKCS7 *p7, X509_CRL *x509);
322 int PKCS7_content_new(PKCS7 *p7, int nid);
323 int PKCS7_dataVerify(X509_STORE *cert_store, X509_STORE_CTX *ctx,
324         BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si); 
325
326 BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio);
327 int PKCS7_dataFinal(PKCS7 *p7, BIO *bio);
328 BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert);
329
330
331 PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509,
332         EVP_PKEY *pkey, EVP_MD *dgst);
333 X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si);
334 STACK *PKCS7_get_signer_info(PKCS7 *p7);
335
336 PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509);
337 int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri);
338 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509);
339 int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher);
340
341 PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx);
342 ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK *sk);
343 int PKCS7_add_signed_attribute(PKCS7_SIGNER_INFO *p7si,int nid,int type,
344         void *data);
345 int PKCS7_add_attribute (PKCS7_SIGNER_INFO *p7si, int nid, int atrtype,
346         void *value);
347 ASN1_TYPE *PKCS7_get_attribute(PKCS7_SIGNER_INFO *si, int nid);
348 ASN1_TYPE *PKCS7_get_signed_attribute(PKCS7_SIGNER_INFO *si, int nid);
349 int PKCS7_set_signed_attributes(PKCS7_SIGNER_INFO *p7si, STACK *sk);
350 int PKCS7_set_attributes(PKCS7_SIGNER_INFO *p7si, STACK *sk);
351
352
353
354 /* BEGIN ERROR CODES */
355 /* The following lines are auto generated by the script mkerr.pl. Any changes
356  * made after this point may be overwritten when the script is next run.
357  */
358
359 /* Error codes for the PKCS7 functions. */
360
361 /* Function codes. */
362 #define PKCS7_F_PKCS7_ADD_CERTIFICATE                    100
363 #define PKCS7_F_PKCS7_ADD_CRL                            101
364 #define PKCS7_F_PKCS7_ADD_RECIPIENT_INFO                 102
365 #define PKCS7_F_PKCS7_ADD_SIGNER                         103
366 #define PKCS7_F_PKCS7_CTRL                               104
367 #define PKCS7_F_PKCS7_DATADECODE                         112
368 #define PKCS7_F_PKCS7_DATAINIT                           105
369 #define PKCS7_F_PKCS7_DATASIGN                           106
370 #define PKCS7_F_PKCS7_DATAVERIFY                         107
371 #define PKCS7_F_PKCS7_SET_CIPHER                         108
372 #define PKCS7_F_PKCS7_SET_CONTENT                        109
373 #define PKCS7_F_PKCS7_SET_TYPE                           110
374
375 /* Reason codes. */
376 #define PKCS7_R_CIPHER_NOT_INITIALIZED                   116
377 #define PKCS7_R_DECRYPTED_KEY_IS_WRONG_LENGTH            100
378 #define PKCS7_R_DIGEST_FAILURE                           101
379 #define PKCS7_R_INTERNAL_ERROR                           102
380 #define PKCS7_R_MISSING_CERIPEND_INFO                    103
381 #define PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE         115
382 #define PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE     104
383 #define PKCS7_R_SIGNATURE_FAILURE                        105
384 #define PKCS7_R_UNABLE_TO_FIND_CERTIFICATE               106
385 #define PKCS7_R_UNABLE_TO_FIND_MEM_BIO                   107
386 #define PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST            108
387 #define PKCS7_R_UNKNOWN_DIGEST_TYPE                      109
388 #define PKCS7_R_UNKNOWN_OPERATION                        110
389 #define PKCS7_R_UNSUPPORTED_CIPHER_TYPE                  111
390 #define PKCS7_R_UNSUPPORTED_CONTENT_TYPE                 112
391 #define PKCS7_R_WRONG_CONTENT_TYPE                       113
392 #define PKCS7_R_WRONG_PKCS7_TYPE                         114
393
394 #ifdef  __cplusplus
395 }
396 #endif
397 #endif
398