1 /* $OpenBSD: pkcs7.h,v 1.19 2022/07/12 14:42:50 kn Exp $ */
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 #include <openssl/opensslconf.h>
63 
64 #include <openssl/asn1.h>
65 #include <openssl/bio.h>
66 #include <openssl/ossl_typ.h>
67 
68 #ifdef  __cplusplus
69 extern "C" {
70 #endif
71 
72 #if defined(_WIN32) && defined(__WINCRYPT_H__)
73 #ifndef LIBRESSL_INTERNAL
74 #ifdef _MSC_VER
75 #pragma message("Warning, overriding WinCrypt defines")
76 #else
77 #warning overriding WinCrypt defines
78 #endif
79 #endif
80 #undef PKCS7_ISSUER_AND_SERIAL
81 #undef PKCS7_SIGNER_INFO
82 #endif
83 
84 /*
85 Encryption_ID		DES-CBC
86 Digest_ID		MD5
87 Digest_Encryption_ID	rsaEncryption
88 Key_Encryption_ID	rsaEncryption
89 */
90 
91 typedef struct pkcs7_issuer_and_serial_st {
92 	X509_NAME *issuer;
93 	ASN1_INTEGER *serial;
94 } PKCS7_ISSUER_AND_SERIAL;
95 
96 typedef struct pkcs7_signer_info_st {
97 	ASN1_INTEGER 			*version;	/* version 1 */
98 	PKCS7_ISSUER_AND_SERIAL		*issuer_and_serial;
99 	X509_ALGOR			*digest_alg;
100 	STACK_OF(X509_ATTRIBUTE)	*auth_attr;	/* [ 0 ] */
101 	X509_ALGOR			*digest_enc_alg;
102 	ASN1_OCTET_STRING		*enc_digest;
103 	STACK_OF(X509_ATTRIBUTE)	*unauth_attr;	/* [ 1 ] */
104 
105 	/* The private key to sign with */
106 	EVP_PKEY			*pkey;
107 } PKCS7_SIGNER_INFO;
108 
109 DECLARE_STACK_OF(PKCS7_SIGNER_INFO)
110 
111 typedef struct pkcs7_recip_info_st {
112 	ASN1_INTEGER			*version;	/* version 0 */
113 	PKCS7_ISSUER_AND_SERIAL		*issuer_and_serial;
114 	X509_ALGOR			*key_enc_algor;
115 	ASN1_OCTET_STRING		*enc_key;
116 	X509				*cert; /* get the pub-key from this */
117 } PKCS7_RECIP_INFO;
118 
119 DECLARE_STACK_OF(PKCS7_RECIP_INFO)
120 
121 typedef struct pkcs7_signed_st {
122 	ASN1_INTEGER			*version;	/* version 1 */
123 	STACK_OF(X509_ALGOR)		*md_algs;	/* md used */
124 	STACK_OF(X509)			*cert;		/* [ 0 ] */
125 	STACK_OF(X509_CRL)		*crl;		/* [ 1 ] */
126 	STACK_OF(PKCS7_SIGNER_INFO)	*signer_info;
127 
128 	struct pkcs7_st			*contents;
129 } PKCS7_SIGNED;
130 /* The above structure is very very similar to PKCS7_SIGN_ENVELOPE.
131  * How about merging the two */
132 
133 typedef struct pkcs7_enc_content_st {
134 	ASN1_OBJECT			*content_type;
135 	X509_ALGOR			*algorithm;
136 	ASN1_OCTET_STRING		*enc_data;	/* [ 0 ] */
137 	const EVP_CIPHER		*cipher;
138 } PKCS7_ENC_CONTENT;
139 
140 typedef struct pkcs7_enveloped_st {
141 	ASN1_INTEGER			*version;	/* version 0 */
142 	STACK_OF(PKCS7_RECIP_INFO)	*recipientinfo;
143 	PKCS7_ENC_CONTENT		*enc_data;
144 } PKCS7_ENVELOPE;
145 
146 typedef struct pkcs7_signedandenveloped_st {
147 	ASN1_INTEGER			*version;	/* version 1 */
148 	STACK_OF(X509_ALGOR)		*md_algs;	/* md used */
149 	STACK_OF(X509)			*cert;		/* [ 0 ] */
150 	STACK_OF(X509_CRL)		*crl;		/* [ 1 ] */
151 	STACK_OF(PKCS7_SIGNER_INFO)	*signer_info;
152 
153 	PKCS7_ENC_CONTENT		*enc_data;
154 	STACK_OF(PKCS7_RECIP_INFO)	*recipientinfo;
155 } PKCS7_SIGN_ENVELOPE;
156 
157 typedef struct pkcs7_digest_st {
158 	ASN1_INTEGER			*version;	/* version 0 */
159 	X509_ALGOR			*md;		/* md used */
160 	struct pkcs7_st 		*contents;
161 	ASN1_OCTET_STRING		*digest;
162 } PKCS7_DIGEST;
163 
164 typedef struct pkcs7_encrypted_st {
165 	ASN1_INTEGER			*version;	/* version 0 */
166 	PKCS7_ENC_CONTENT		*enc_data;
167 } PKCS7_ENCRYPT;
168 
169 typedef struct pkcs7_st {
170 	/* The following is non NULL if it contains ASN1 encoding of
171 	 * this structure */
172 	unsigned char *asn1;
173 	long length;
174 
175 #define PKCS7_S_HEADER	0
176 #define PKCS7_S_BODY	1
177 #define PKCS7_S_TAIL	2
178 	int state; /* used during processing */
179 
180 	int detached;
181 
182 	ASN1_OBJECT *type;
183 	/* content as defined by the type */
184 	/* all encryption/message digests are applied to the 'contents',
185 	 * leaving out the 'type' field. */
186 	union	{
187 		char *ptr;
188 
189 		/* NID_pkcs7_data */
190 		ASN1_OCTET_STRING *data;
191 
192 		/* NID_pkcs7_signed */
193 		PKCS7_SIGNED *sign;
194 
195 		/* NID_pkcs7_enveloped */
196 		PKCS7_ENVELOPE *enveloped;
197 
198 		/* NID_pkcs7_signedAndEnveloped */
199 		PKCS7_SIGN_ENVELOPE *signed_and_enveloped;
200 
201 		/* NID_pkcs7_digest */
202 		PKCS7_DIGEST *digest;
203 
204 		/* NID_pkcs7_encrypted */
205 		PKCS7_ENCRYPT *encrypted;
206 
207 		/* Anything else */
208 		ASN1_TYPE *other;
209 	} d;
210 } PKCS7;
211 
212 DECLARE_STACK_OF(PKCS7)
213 DECLARE_PKCS12_STACK_OF(PKCS7)
214 
215 #define PKCS7_OP_SET_DETACHED_SIGNATURE	1
216 #define PKCS7_OP_GET_DETACHED_SIGNATURE	2
217 
218 #define PKCS7_get_signed_attributes(si)	((si)->auth_attr)
219 #define PKCS7_get_attributes(si)	((si)->unauth_attr)
220 
221 #define PKCS7_type_is_signed(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_signed)
222 #define PKCS7_type_is_encrypted(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_encrypted)
223 #define PKCS7_type_is_enveloped(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_enveloped)
224 #define PKCS7_type_is_signedAndEnveloped(a) \
225 		(OBJ_obj2nid((a)->type) == NID_pkcs7_signedAndEnveloped)
226 #define PKCS7_type_is_data(a)   (OBJ_obj2nid((a)->type) == NID_pkcs7_data)
227 #define PKCS7_type_is_digest(a)   (OBJ_obj2nid((a)->type) == NID_pkcs7_digest)
228 #define PKCS7_type_is_encrypted(a) \
229 		(OBJ_obj2nid((a)->type) == NID_pkcs7_encrypted)
230 
231 #define PKCS7_type_is_digest(a)   (OBJ_obj2nid((a)->type) == NID_pkcs7_digest)
232 
233 #define PKCS7_set_detached(p,v) \
234 		PKCS7_ctrl(p,PKCS7_OP_SET_DETACHED_SIGNATURE,v,NULL)
235 #define PKCS7_get_detached(p) \
236 		PKCS7_ctrl(p,PKCS7_OP_GET_DETACHED_SIGNATURE,0,NULL)
237 
238 #define PKCS7_is_detached(p7) (PKCS7_type_is_signed(p7) && PKCS7_get_detached(p7))
239 
240 /* S/MIME related flags */
241 
242 #define PKCS7_TEXT		0x1
243 #define PKCS7_NOCERTS		0x2
244 #define PKCS7_NOSIGS		0x4
245 #define PKCS7_NOCHAIN		0x8
246 #define PKCS7_NOINTERN		0x10
247 #define PKCS7_NOVERIFY		0x20
248 #define PKCS7_DETACHED		0x40
249 #define PKCS7_BINARY		0x80
250 #define PKCS7_NOATTR		0x100
251 #define	PKCS7_NOSMIMECAP	0x200
252 #define PKCS7_NOOLDMIMETYPE	0x400
253 #define PKCS7_CRLFEOL		0x800
254 #define PKCS7_STREAM		0x1000
255 #define PKCS7_NOCRL		0x2000
256 #define PKCS7_PARTIAL		0x4000
257 #define PKCS7_REUSE_DIGEST	0x8000
258 
259 /* Flags: for compatibility with older code */
260 
261 #define SMIME_TEXT	PKCS7_TEXT
262 #define SMIME_NOCERTS	PKCS7_NOCERTS
263 #define SMIME_NOSIGS	PKCS7_NOSIGS
264 #define SMIME_NOCHAIN	PKCS7_NOCHAIN
265 #define SMIME_NOINTERN	PKCS7_NOINTERN
266 #define SMIME_NOVERIFY	PKCS7_NOVERIFY
267 #define SMIME_DETACHED	PKCS7_DETACHED
268 #define SMIME_BINARY	PKCS7_BINARY
269 #define SMIME_NOATTR	PKCS7_NOATTR
270 
271 PKCS7_ISSUER_AND_SERIAL *PKCS7_ISSUER_AND_SERIAL_new(void);
272 void PKCS7_ISSUER_AND_SERIAL_free(PKCS7_ISSUER_AND_SERIAL *a);
273 PKCS7_ISSUER_AND_SERIAL *d2i_PKCS7_ISSUER_AND_SERIAL(PKCS7_ISSUER_AND_SERIAL **a, const unsigned char **in, long len);
274 int i2d_PKCS7_ISSUER_AND_SERIAL(PKCS7_ISSUER_AND_SERIAL *a, unsigned char **out);
275 extern const ASN1_ITEM PKCS7_ISSUER_AND_SERIAL_it;
276 
277 int PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,
278     const EVP_MD *type, unsigned char *md, unsigned int *len);
279 PKCS7 *d2i_PKCS7_fp(FILE *fp, PKCS7 **p7);
280 int i2d_PKCS7_fp(FILE *fp, PKCS7 *p7);
281 PKCS7 *PKCS7_dup(PKCS7 *p7);
282 PKCS7 *d2i_PKCS7_bio(BIO *bp, PKCS7 **p7);
283 int i2d_PKCS7_bio(BIO *bp, PKCS7 *p7);
284 int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags);
285 int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags);
286 
287 PKCS7_SIGNER_INFO *PKCS7_SIGNER_INFO_new(void);
288 void PKCS7_SIGNER_INFO_free(PKCS7_SIGNER_INFO *a);
289 PKCS7_SIGNER_INFO *d2i_PKCS7_SIGNER_INFO(PKCS7_SIGNER_INFO **a, const unsigned char **in, long len);
290 int i2d_PKCS7_SIGNER_INFO(PKCS7_SIGNER_INFO *a, unsigned char **out);
291 extern const ASN1_ITEM PKCS7_SIGNER_INFO_it;
292 PKCS7_RECIP_INFO *PKCS7_RECIP_INFO_new(void);
293 void PKCS7_RECIP_INFO_free(PKCS7_RECIP_INFO *a);
294 PKCS7_RECIP_INFO *d2i_PKCS7_RECIP_INFO(PKCS7_RECIP_INFO **a, const unsigned char **in, long len);
295 int i2d_PKCS7_RECIP_INFO(PKCS7_RECIP_INFO *a, unsigned char **out);
296 extern const ASN1_ITEM PKCS7_RECIP_INFO_it;
297 PKCS7_SIGNED *PKCS7_SIGNED_new(void);
298 void PKCS7_SIGNED_free(PKCS7_SIGNED *a);
299 PKCS7_SIGNED *d2i_PKCS7_SIGNED(PKCS7_SIGNED **a, const unsigned char **in, long len);
300 int i2d_PKCS7_SIGNED(PKCS7_SIGNED *a, unsigned char **out);
301 extern const ASN1_ITEM PKCS7_SIGNED_it;
302 PKCS7_ENC_CONTENT *PKCS7_ENC_CONTENT_new(void);
303 void PKCS7_ENC_CONTENT_free(PKCS7_ENC_CONTENT *a);
304 PKCS7_ENC_CONTENT *d2i_PKCS7_ENC_CONTENT(PKCS7_ENC_CONTENT **a, const unsigned char **in, long len);
305 int i2d_PKCS7_ENC_CONTENT(PKCS7_ENC_CONTENT *a, unsigned char **out);
306 extern const ASN1_ITEM PKCS7_ENC_CONTENT_it;
307 PKCS7_ENVELOPE *PKCS7_ENVELOPE_new(void);
308 void PKCS7_ENVELOPE_free(PKCS7_ENVELOPE *a);
309 PKCS7_ENVELOPE *d2i_PKCS7_ENVELOPE(PKCS7_ENVELOPE **a, const unsigned char **in, long len);
310 int i2d_PKCS7_ENVELOPE(PKCS7_ENVELOPE *a, unsigned char **out);
311 extern const ASN1_ITEM PKCS7_ENVELOPE_it;
312 PKCS7_SIGN_ENVELOPE *PKCS7_SIGN_ENVELOPE_new(void);
313 void PKCS7_SIGN_ENVELOPE_free(PKCS7_SIGN_ENVELOPE *a);
314 PKCS7_SIGN_ENVELOPE *d2i_PKCS7_SIGN_ENVELOPE(PKCS7_SIGN_ENVELOPE **a, const unsigned char **in, long len);
315 int i2d_PKCS7_SIGN_ENVELOPE(PKCS7_SIGN_ENVELOPE *a, unsigned char **out);
316 extern const ASN1_ITEM PKCS7_SIGN_ENVELOPE_it;
317 PKCS7_DIGEST *PKCS7_DIGEST_new(void);
318 void PKCS7_DIGEST_free(PKCS7_DIGEST *a);
319 PKCS7_DIGEST *d2i_PKCS7_DIGEST(PKCS7_DIGEST **a, const unsigned char **in, long len);
320 int i2d_PKCS7_DIGEST(PKCS7_DIGEST *a, unsigned char **out);
321 extern const ASN1_ITEM PKCS7_DIGEST_it;
322 PKCS7_ENCRYPT *PKCS7_ENCRYPT_new(void);
323 void PKCS7_ENCRYPT_free(PKCS7_ENCRYPT *a);
324 PKCS7_ENCRYPT *d2i_PKCS7_ENCRYPT(PKCS7_ENCRYPT **a, const unsigned char **in, long len);
325 int i2d_PKCS7_ENCRYPT(PKCS7_ENCRYPT *a, unsigned char **out);
326 extern const ASN1_ITEM PKCS7_ENCRYPT_it;
327 PKCS7 *PKCS7_new(void);
328 void PKCS7_free(PKCS7 *a);
329 PKCS7 *d2i_PKCS7(PKCS7 **a, const unsigned char **in, long len);
330 int i2d_PKCS7(PKCS7 *a, unsigned char **out);
331 extern const ASN1_ITEM PKCS7_it;
332 
333 extern const ASN1_ITEM PKCS7_ATTR_SIGN_it;
334 extern const ASN1_ITEM PKCS7_ATTR_VERIFY_it;
335 
336 int i2d_PKCS7_NDEF(PKCS7 *a, unsigned char **out);
337 int PKCS7_print_ctx(BIO *out, PKCS7 *x, int indent, const ASN1_PCTX *pctx);
338 
339 long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg);
340 
341 int PKCS7_set_type(PKCS7 *p7, int type);
342 int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other);
343 int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data);
344 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
345     const EVP_MD *dgst);
346 int PKCS7_SIGNER_INFO_sign(PKCS7_SIGNER_INFO *si);
347 int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *p7i);
348 int PKCS7_add_certificate(PKCS7 *p7, X509 *x509);
349 int PKCS7_add_crl(PKCS7 *p7, X509_CRL *x509);
350 int PKCS7_content_new(PKCS7 *p7, int nid);
351 int PKCS7_dataVerify(X509_STORE *cert_store, X509_STORE_CTX *ctx,
352     BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si);
353 int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si,
354     X509 *x509);
355 
356 BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio);
357 int PKCS7_dataFinal(PKCS7 *p7, BIO *bio);
358 BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert);
359 
360 
361 PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509,
362     EVP_PKEY *pkey, const EVP_MD *dgst);
363 X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si);
364 int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md);
365 STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7);
366 
367 PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509);
368 void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk,
369     X509_ALGOR **pdig, X509_ALGOR **psig);
370 void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc);
371 int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri);
372 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509);
373 int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher);
374 int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7);
375 
376 PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx);
377 ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK_OF(X509_ATTRIBUTE) *sk);
378 int PKCS7_add_signed_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int type,
379     void *data);
380 int PKCS7_add_attribute (PKCS7_SIGNER_INFO *p7si, int nid, int atrtype,
381     void *value);
382 ASN1_TYPE *PKCS7_get_attribute(PKCS7_SIGNER_INFO *si, int nid);
383 ASN1_TYPE *PKCS7_get_signed_attribute(PKCS7_SIGNER_INFO *si, int nid);
384 int PKCS7_set_signed_attributes(PKCS7_SIGNER_INFO *p7si,
385     STACK_OF(X509_ATTRIBUTE) *sk);
386 int PKCS7_set_attributes(PKCS7_SIGNER_INFO *p7si, STACK_OF(X509_ATTRIBUTE) *sk);
387 
388 
389 PKCS7 *PKCS7_sign(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs,
390     BIO *data, int flags);
391 
392 PKCS7_SIGNER_INFO *PKCS7_sign_add_signer(PKCS7 *p7,
393     X509 *signcert, EVP_PKEY *pkey, const EVP_MD *md,
394     int flags);
395 
396 int PKCS7_final(PKCS7 *p7, BIO *data, int flags);
397 int PKCS7_verify(PKCS7 *p7, STACK_OF(X509) *certs, X509_STORE *store,
398     BIO *indata, BIO *out, int flags);
399 STACK_OF(X509) *PKCS7_get0_signers(PKCS7 *p7, STACK_OF(X509) *certs, int flags);
400 PKCS7 *PKCS7_encrypt(STACK_OF(X509) *certs, BIO *in, const EVP_CIPHER *cipher,
401     int flags);
402 int PKCS7_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data, int flags);
403 
404 int PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si,
405     STACK_OF(X509_ALGOR) *cap);
406 STACK_OF(X509_ALGOR) *PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si);
407 int PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg);
408 
409 int PKCS7_add_attrib_content_type(PKCS7_SIGNER_INFO *si, ASN1_OBJECT *coid);
410 int PKCS7_add0_attrib_signing_time(PKCS7_SIGNER_INFO *si, ASN1_TIME *t);
411 int PKCS7_add1_attrib_digest(PKCS7_SIGNER_INFO *si,
412     const unsigned char *md, int mdlen);
413 
414 int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags);
415 PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont);
416 
417 BIO *BIO_new_PKCS7(BIO *out, PKCS7 *p7);
418 
419 
420 void ERR_load_PKCS7_strings(void);
421 
422 /* Error codes for the PKCS7 functions. */
423 
424 /* Function codes. */
425 #define PKCS7_F_B64_READ_PKCS7				 120
426 #define PKCS7_F_B64_WRITE_PKCS7				 121
427 #define PKCS7_F_DO_PKCS7_SIGNED_ATTRIB			 136
428 #define PKCS7_F_I2D_PKCS7_BIO_STREAM			 140
429 #define PKCS7_F_PKCS7_ADD0_ATTRIB_SIGNING_TIME		 135
430 #define PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP		 118
431 #define PKCS7_F_PKCS7_ADD_CERTIFICATE			 100
432 #define PKCS7_F_PKCS7_ADD_CRL				 101
433 #define PKCS7_F_PKCS7_ADD_RECIPIENT_INFO		 102
434 #define PKCS7_F_PKCS7_ADD_SIGNATURE			 131
435 #define PKCS7_F_PKCS7_ADD_SIGNER			 103
436 #define PKCS7_F_PKCS7_BIO_ADD_DIGEST			 125
437 #define PKCS7_F_PKCS7_COPY_EXISTING_DIGEST		 138
438 #define PKCS7_F_PKCS7_CTRL				 104
439 #define PKCS7_F_PKCS7_DATADECODE			 112
440 #define PKCS7_F_PKCS7_DATAFINAL				 128
441 #define PKCS7_F_PKCS7_DATAINIT				 105
442 #define PKCS7_F_PKCS7_DATASIGN				 106
443 #define PKCS7_F_PKCS7_DATAVERIFY			 107
444 #define PKCS7_F_PKCS7_DECRYPT				 114
445 #define PKCS7_F_PKCS7_DECRYPT_RINFO			 133
446 #define PKCS7_F_PKCS7_ENCODE_RINFO			 132
447 #define PKCS7_F_PKCS7_ENCRYPT				 115
448 #define PKCS7_F_PKCS7_FINAL				 134
449 #define PKCS7_F_PKCS7_FIND_DIGEST			 127
450 #define PKCS7_F_PKCS7_GET0_SIGNERS			 124
451 #define PKCS7_F_PKCS7_RECIP_INFO_SET			 130
452 #define PKCS7_F_PKCS7_SET_CIPHER			 108
453 #define PKCS7_F_PKCS7_SET_CONTENT			 109
454 #define PKCS7_F_PKCS7_SET_DIGEST			 126
455 #define PKCS7_F_PKCS7_SET_TYPE				 110
456 #define PKCS7_F_PKCS7_SIGN				 116
457 #define PKCS7_F_PKCS7_SIGNATUREVERIFY			 113
458 #define PKCS7_F_PKCS7_SIGNER_INFO_SET			 129
459 #define PKCS7_F_PKCS7_SIGNER_INFO_SIGN			 139
460 #define PKCS7_F_PKCS7_SIGN_ADD_SIGNER			 137
461 #define PKCS7_F_PKCS7_SIMPLE_SMIMECAP			 119
462 #define PKCS7_F_PKCS7_VERIFY				 117
463 #define PKCS7_F_SMIME_READ_PKCS7			 122
464 #define PKCS7_F_SMIME_TEXT				 123
465 
466 /* Reason codes. */
467 #define PKCS7_R_CERTIFICATE_VERIFY_ERROR		 117
468 #define PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER		 144
469 #define PKCS7_R_CIPHER_NOT_INITIALIZED			 116
470 #define PKCS7_R_CONTENT_AND_DATA_PRESENT		 118
471 #define PKCS7_R_CTRL_ERROR				 152
472 #define PKCS7_R_DECODE_ERROR				 130
473 #define PKCS7_R_DECRYPTED_KEY_IS_WRONG_LENGTH		 100
474 #define PKCS7_R_DECRYPT_ERROR				 119
475 #define PKCS7_R_DIGEST_FAILURE				 101
476 #define PKCS7_R_ENCRYPTION_CTRL_FAILURE			 149
477 #define PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE 150
478 #define PKCS7_R_ERROR_ADDING_RECIPIENT			 120
479 #define PKCS7_R_ERROR_SETTING_CIPHER			 121
480 #define PKCS7_R_INVALID_MIME_TYPE			 131
481 #define PKCS7_R_INVALID_NULL_POINTER			 143
482 #define PKCS7_R_MIME_NO_CONTENT_TYPE			 132
483 #define PKCS7_R_MIME_PARSE_ERROR			 133
484 #define PKCS7_R_MIME_SIG_PARSE_ERROR			 134
485 #define PKCS7_R_MISSING_CERIPEND_INFO			 103
486 #define PKCS7_R_NO_CONTENT				 122
487 #define PKCS7_R_NO_CONTENT_TYPE				 135
488 #define PKCS7_R_NO_DEFAULT_DIGEST			 151
489 #define PKCS7_R_NO_MATCHING_DIGEST_TYPE_FOUND		 154
490 #define PKCS7_R_NO_MULTIPART_BODY_FAILURE		 136
491 #define PKCS7_R_NO_MULTIPART_BOUNDARY			 137
492 #define PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE	 115
493 #define PKCS7_R_NO_RECIPIENT_MATCHES_KEY		 146
494 #define PKCS7_R_NO_SIGNATURES_ON_DATA			 123
495 #define PKCS7_R_NO_SIGNERS				 142
496 #define PKCS7_R_NO_SIG_CONTENT_TYPE			 138
497 #define PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE	 104
498 #define PKCS7_R_PKCS7_ADD_SIGNATURE_ERROR		 124
499 #define PKCS7_R_PKCS7_ADD_SIGNER_ERROR			 153
500 #define PKCS7_R_PKCS7_DATAFINAL				 126
501 #define PKCS7_R_PKCS7_DATAFINAL_ERROR			 125
502 #define PKCS7_R_PKCS7_DATASIGN				 145
503 #define PKCS7_R_PKCS7_PARSE_ERROR			 139
504 #define PKCS7_R_PKCS7_SIG_PARSE_ERROR			 140
505 #define PKCS7_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE	 127
506 #define PKCS7_R_SIGNATURE_FAILURE			 105
507 #define PKCS7_R_SIGNER_CERTIFICATE_NOT_FOUND		 128
508 #define PKCS7_R_SIGNING_CTRL_FAILURE			 147
509 #define PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE	 148
510 #define PKCS7_R_SIG_INVALID_MIME_TYPE			 141
511 #define PKCS7_R_SMIME_TEXT_ERROR			 129
512 #define PKCS7_R_UNABLE_TO_FIND_CERTIFICATE		 106
513 #define PKCS7_R_UNABLE_TO_FIND_MEM_BIO			 107
514 #define PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST		 108
515 #define PKCS7_R_UNKNOWN_DIGEST_TYPE			 109
516 #define PKCS7_R_UNKNOWN_OPERATION			 110
517 #define PKCS7_R_UNSUPPORTED_CIPHER_TYPE			 111
518 #define PKCS7_R_UNSUPPORTED_CONTENT_TYPE		 112
519 #define PKCS7_R_WRONG_CONTENT_TYPE			 113
520 #define PKCS7_R_WRONG_PKCS7_TYPE			 114
521 
522 #ifdef  __cplusplus
523 }
524 #endif
525 #endif
526