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1/* $OpenBSD: cms_local.h,v 1.1 2022/11/26 16:08:51 tb Exp $ */
2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4 * project.
5 */
6/* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 */
54
55#ifndef HEADER_CMS_LCL_H
56#define HEADER_CMS_LCL_H
57
58#include <openssl/x509.h>
59
60/*
61 * Cryptographic message syntax (CMS) structures: taken from RFC3852
62 */
63
64/* Forward references */
65
66typedef struct CMS_IssuerAndSerialNumber_st CMS_IssuerAndSerialNumber;
67typedef struct CMS_EncapsulatedContentInfo_st CMS_EncapsulatedContentInfo;
68typedef struct CMS_SignerIdentifier_st CMS_SignerIdentifier;
69typedef struct CMS_SignedData_st CMS_SignedData;
70typedef struct CMS_OtherRevocationInfoFormat_st CMS_OtherRevocationInfoFormat;
71typedef struct CMS_OriginatorInfo_st CMS_OriginatorInfo;
72typedef struct CMS_EncryptedContentInfo_st CMS_EncryptedContentInfo;
73typedef struct CMS_EnvelopedData_st CMS_EnvelopedData;
74typedef struct CMS_DigestedData_st CMS_DigestedData;
75typedef struct CMS_EncryptedData_st CMS_EncryptedData;
76typedef struct CMS_AuthenticatedData_st CMS_AuthenticatedData;
77typedef struct CMS_CompressedData_st CMS_CompressedData;
78typedef struct CMS_OtherCertificateFormat_st CMS_OtherCertificateFormat;
79typedef struct CMS_KeyTransRecipientInfo_st CMS_KeyTransRecipientInfo;
80typedef struct CMS_OriginatorPublicKey_st CMS_OriginatorPublicKey;
81typedef struct CMS_OriginatorIdentifierOrKey_st CMS_OriginatorIdentifierOrKey;
82typedef struct CMS_KeyAgreeRecipientInfo_st CMS_KeyAgreeRecipientInfo;
83typedef struct CMS_RecipientKeyIdentifier_st CMS_RecipientKeyIdentifier;
84typedef struct CMS_KeyAgreeRecipientIdentifier_st
85 CMS_KeyAgreeRecipientIdentifier;
86typedef struct CMS_KEKIdentifier_st CMS_KEKIdentifier;
87typedef struct CMS_KEKRecipientInfo_st CMS_KEKRecipientInfo;
88typedef struct CMS_PasswordRecipientInfo_st CMS_PasswordRecipientInfo;
89typedef struct CMS_OtherRecipientInfo_st CMS_OtherRecipientInfo;
90typedef struct CMS_ReceiptsFrom_st CMS_ReceiptsFrom;
91
92struct CMS_ContentInfo_st {
93 ASN1_OBJECT *contentType;
94 union {
95 ASN1_OCTET_STRING *data;
96 CMS_SignedData *signedData;
97 CMS_EnvelopedData *envelopedData;
98 CMS_DigestedData *digestedData;
99 CMS_EncryptedData *encryptedData;
100 CMS_AuthenticatedData *authenticatedData;
101 CMS_CompressedData *compressedData;
102 ASN1_TYPE *other;
103 /* Other types ... */
104 void *otherData;
105 } d;
106};
107
108DECLARE_STACK_OF(CMS_CertificateChoices)
109
110struct CMS_SignedData_st {
111 long version;
112 STACK_OF(X509_ALGOR) *digestAlgorithms;
113 CMS_EncapsulatedContentInfo *encapContentInfo;
114 STACK_OF(CMS_CertificateChoices) *certificates;
115 STACK_OF(CMS_RevocationInfoChoice) *crls;
116 STACK_OF(CMS_SignerInfo) *signerInfos;
117};
118
119struct CMS_EncapsulatedContentInfo_st {
120 ASN1_OBJECT *eContentType;
121 ASN1_OCTET_STRING *eContent;
122 /* Set to 1 if incomplete structure only part set up */
123 int partial;
124};
125
126struct CMS_SignerInfo_st {
127 long version;
128 CMS_SignerIdentifier *sid;
129 X509_ALGOR *digestAlgorithm;
130 STACK_OF(X509_ATTRIBUTE) *signedAttrs;
131 X509_ALGOR *signatureAlgorithm;
132 ASN1_OCTET_STRING *signature;
133 STACK_OF(X509_ATTRIBUTE) *unsignedAttrs;
134 /* Signing certificate and key */
135 X509 *signer;
136 EVP_PKEY *pkey;
137 /* Digest and public key context for alternative parameters */
138 EVP_MD_CTX *mctx;
139 EVP_PKEY_CTX *pctx;
140};
141
142struct CMS_SignerIdentifier_st {
143 int type;
144 union {
145 CMS_IssuerAndSerialNumber *issuerAndSerialNumber;
146 ASN1_OCTET_STRING *subjectKeyIdentifier;
147 } d;
148};
149
150struct CMS_EnvelopedData_st {
151 long version;
152 CMS_OriginatorInfo *originatorInfo;
153 STACK_OF(CMS_RecipientInfo) *recipientInfos;
154 CMS_EncryptedContentInfo *encryptedContentInfo;
155 STACK_OF(X509_ATTRIBUTE) *unprotectedAttrs;
156};
157
158struct CMS_OriginatorInfo_st {
159 STACK_OF(CMS_CertificateChoices) *certificates;
160 STACK_OF(CMS_RevocationInfoChoice) *crls;
161};
162
163struct CMS_EncryptedContentInfo_st {
164 ASN1_OBJECT *contentType;
165 X509_ALGOR *contentEncryptionAlgorithm;
166 ASN1_OCTET_STRING *encryptedContent;
167 /* Content encryption algorithm and key */
168 const EVP_CIPHER *cipher;
169 unsigned char *key;
170 size_t keylen;
171 /* Set to 1 if we are debugging decrypt and don't fake keys for MMA */
172 int debug;
173 /* Set to 1 if we have no cert and need exta safety measures for MMA */
174 int havenocert;
175};
176
177struct CMS_RecipientInfo_st {
178 int type;
179 union {
180 CMS_KeyTransRecipientInfo *ktri;
181 CMS_KeyAgreeRecipientInfo *kari;
182 CMS_KEKRecipientInfo *kekri;
183 CMS_PasswordRecipientInfo *pwri;
184 CMS_OtherRecipientInfo *ori;
185 } d;
186};
187
188typedef CMS_SignerIdentifier CMS_RecipientIdentifier;
189
190struct CMS_KeyTransRecipientInfo_st {
191 long version;
192 CMS_RecipientIdentifier *rid;
193 X509_ALGOR *keyEncryptionAlgorithm;
194 ASN1_OCTET_STRING *encryptedKey;
195 /* Recipient Key and cert */
196 X509 *recip;
197 EVP_PKEY *pkey;
198 /* Public key context for this operation */
199 EVP_PKEY_CTX *pctx;
200};
201
202struct CMS_KeyAgreeRecipientInfo_st {
203 long version;
204 CMS_OriginatorIdentifierOrKey *originator;
205 ASN1_OCTET_STRING *ukm;
206 X509_ALGOR *keyEncryptionAlgorithm;
207 STACK_OF(CMS_RecipientEncryptedKey) *recipientEncryptedKeys;
208 /* Public key context associated with current operation */
209 EVP_PKEY_CTX *pctx;
210 /* Cipher context for CEK wrapping */
211 EVP_CIPHER_CTX *ctx;
212};
213
214struct CMS_OriginatorIdentifierOrKey_st {
215 int type;
216 union {
217 CMS_IssuerAndSerialNumber *issuerAndSerialNumber;
218 ASN1_OCTET_STRING *subjectKeyIdentifier;
219 CMS_OriginatorPublicKey *originatorKey;
220 } d;
221};
222
223struct CMS_OriginatorPublicKey_st {
224 X509_ALGOR *algorithm;
225 ASN1_BIT_STRING *publicKey;
226};
227
228struct CMS_RecipientEncryptedKey_st {
229 CMS_KeyAgreeRecipientIdentifier *rid;
230 ASN1_OCTET_STRING *encryptedKey;
231 /* Public key associated with this recipient */
232 EVP_PKEY *pkey;
233};
234
235struct CMS_KeyAgreeRecipientIdentifier_st {
236 int type;
237 union {
238 CMS_IssuerAndSerialNumber *issuerAndSerialNumber;
239 CMS_RecipientKeyIdentifier *rKeyId;
240 } d;
241};
242
243struct CMS_RecipientKeyIdentifier_st {
244 ASN1_OCTET_STRING *subjectKeyIdentifier;
245 ASN1_GENERALIZEDTIME *date;
246 CMS_OtherKeyAttribute *other;
247};
248
249struct CMS_KEKRecipientInfo_st {
250 long version;
251 CMS_KEKIdentifier *kekid;
252 X509_ALGOR *keyEncryptionAlgorithm;
253 ASN1_OCTET_STRING *encryptedKey;
254 /* Extra info: symmetric key to use */
255 unsigned char *key;
256 size_t keylen;
257};
258
259struct CMS_KEKIdentifier_st {
260 ASN1_OCTET_STRING *keyIdentifier;
261 ASN1_GENERALIZEDTIME *date;
262 CMS_OtherKeyAttribute *other;
263};
264
265struct CMS_PasswordRecipientInfo_st {
266 long version;
267 X509_ALGOR *keyDerivationAlgorithm;
268 X509_ALGOR *keyEncryptionAlgorithm;
269 ASN1_OCTET_STRING *encryptedKey;
270 /* Extra info: password to use */
271 unsigned char *pass;
272 size_t passlen;
273};
274
275struct CMS_OtherRecipientInfo_st {
276 ASN1_OBJECT *oriType;
277 ASN1_TYPE *oriValue;
278};
279
280struct CMS_DigestedData_st {
281 long version;
282 X509_ALGOR *digestAlgorithm;
283 CMS_EncapsulatedContentInfo *encapContentInfo;
284 ASN1_OCTET_STRING *digest;
285};
286
287struct CMS_EncryptedData_st {
288 long version;
289 CMS_EncryptedContentInfo *encryptedContentInfo;
290 STACK_OF(X509_ATTRIBUTE) *unprotectedAttrs;
291};
292
293struct CMS_AuthenticatedData_st {
294 long version;
295 CMS_OriginatorInfo *originatorInfo;
296 STACK_OF(CMS_RecipientInfo) *recipientInfos;
297 X509_ALGOR *macAlgorithm;
298 X509_ALGOR *digestAlgorithm;
299 CMS_EncapsulatedContentInfo *encapContentInfo;
300 STACK_OF(X509_ATTRIBUTE) *authAttrs;
301 ASN1_OCTET_STRING *mac;
302 STACK_OF(X509_ATTRIBUTE) *unauthAttrs;
303};
304
305struct CMS_CompressedData_st {
306 long version;
307 X509_ALGOR *compressionAlgorithm;
308 STACK_OF(CMS_RecipientInfo) *recipientInfos;
309 CMS_EncapsulatedContentInfo *encapContentInfo;
310};
311
312struct CMS_RevocationInfoChoice_st {
313 int type;
314 union {
315 X509_CRL *crl;
316 CMS_OtherRevocationInfoFormat *other;
317 } d;
318};
319
320#define CMS_REVCHOICE_CRL 0
321#define CMS_REVCHOICE_OTHER 1
322
323struct CMS_OtherRevocationInfoFormat_st {
324 ASN1_OBJECT *otherRevInfoFormat;
325 ASN1_TYPE *otherRevInfo;
326};
327
328struct CMS_CertificateChoices {
329 int type;
330 union {
331 X509 *certificate;
332 ASN1_STRING *extendedCertificate; /* Obsolete */
333 ASN1_STRING *v1AttrCert; /* Left encoded for now */
334 ASN1_STRING *v2AttrCert; /* Left encoded for now */
335 CMS_OtherCertificateFormat *other;
336 } d;
337};
338
339#define CMS_CERTCHOICE_CERT 0
340#define CMS_CERTCHOICE_EXCERT 1
341#define CMS_CERTCHOICE_V1ACERT 2
342#define CMS_CERTCHOICE_V2ACERT 3
343#define CMS_CERTCHOICE_OTHER 4
344
345struct CMS_OtherCertificateFormat_st {
346 ASN1_OBJECT *otherCertFormat;
347 ASN1_TYPE *otherCert;
348};
349
350/*
351 * This is also defined in pkcs7.h but we duplicate it to allow the CMS code
352 * to be independent of PKCS#7
353 */
354
355struct CMS_IssuerAndSerialNumber_st {
356 X509_NAME *issuer;
357 ASN1_INTEGER *serialNumber;
358};
359
360struct CMS_OtherKeyAttribute_st {
361 ASN1_OBJECT *keyAttrId;
362 ASN1_TYPE *keyAttr;
363};
364
365/* ESS structures */
366
367#ifdef HEADER_X509V3_H
368
369struct CMS_ReceiptRequest_st {
370 ASN1_OCTET_STRING *signedContentIdentifier;
371 CMS_ReceiptsFrom *receiptsFrom;
372 STACK_OF(GENERAL_NAMES) *receiptsTo;
373};
374
375struct CMS_ReceiptsFrom_st {
376 int type;
377 union {
378 long allOrFirstTier;
379 STACK_OF(GENERAL_NAMES) *receiptList;
380 } d;
381};
382#endif
383
384struct CMS_Receipt_st {
385 long version;
386 ASN1_OBJECT *contentType;
387 ASN1_OCTET_STRING *signedContentIdentifier;
388 ASN1_OCTET_STRING *originatorSignatureValue;
389};
390
391CMS_ContentInfo *CMS_ContentInfo_new(void);
392void CMS_ContentInfo_free(CMS_ContentInfo *a);
393CMS_ContentInfo *d2i_CMS_ContentInfo(CMS_ContentInfo **a, const unsigned char **in, long len);
394int i2d_CMS_ContentInfo(CMS_ContentInfo *a, unsigned char **out);
395extern const ASN1_ITEM CMS_ContentInfo_it;
396extern const ASN1_ITEM CMS_SignerInfo_it;
397extern const ASN1_ITEM CMS_IssuerAndSerialNumber_it;
398extern const ASN1_ITEM CMS_Attributes_Sign_it;
399extern const ASN1_ITEM CMS_Attributes_Verify_it;
400extern const ASN1_ITEM CMS_RecipientInfo_it;
401extern const ASN1_ITEM CMS_PasswordRecipientInfo_it;
402CMS_IssuerAndSerialNumber *CMS_IssuerAndSerialNumber_new(void);
403void CMS_IssuerAndSerialNumber_free(CMS_IssuerAndSerialNumber *a);
404
405#define CMS_SIGNERINFO_ISSUER_SERIAL 0
406#define CMS_SIGNERINFO_KEYIDENTIFIER 1
407
408#define CMS_RECIPINFO_ISSUER_SERIAL 0
409#define CMS_RECIPINFO_KEYIDENTIFIER 1
410
411#define CMS_REK_ISSUER_SERIAL 0
412#define CMS_REK_KEYIDENTIFIER 1
413
414#define CMS_OIK_ISSUER_SERIAL 0
415#define CMS_OIK_KEYIDENTIFIER 1
416#define CMS_OIK_PUBKEY 2
417
418BIO *cms_content_bio(CMS_ContentInfo *cms);
419
420CMS_ContentInfo *cms_Data_create(void);
421
422CMS_ContentInfo *cms_DigestedData_create(const EVP_MD *md);
423BIO *cms_DigestedData_init_bio(CMS_ContentInfo *cms);
424int cms_DigestedData_do_final(CMS_ContentInfo *cms, BIO *chain, int verify);
425
426BIO *cms_SignedData_init_bio(CMS_ContentInfo *cms);
427int cms_SignedData_final(CMS_ContentInfo *cms, BIO *chain);
428int cms_set1_SignerIdentifier(CMS_SignerIdentifier *sid, X509 *cert, int type);
429int cms_SignerIdentifier_get0_signer_id(CMS_SignerIdentifier *sid,
430 ASN1_OCTET_STRING **keyid, X509_NAME **issuer, ASN1_INTEGER **sno);
431int cms_SignerIdentifier_cert_cmp(CMS_SignerIdentifier *sid, X509 *cert);
432
433CMS_ContentInfo *cms_CompressedData_create(int comp_nid);
434BIO *cms_CompressedData_init_bio(CMS_ContentInfo *cms);
435
436BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm);
437int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
438 X509_ALGOR *mdalg);
439
440int cms_ias_cert_cmp(CMS_IssuerAndSerialNumber *ias, X509 *cert);
441int cms_keyid_cert_cmp(ASN1_OCTET_STRING *keyid, X509 *cert);
442int cms_set1_ias(CMS_IssuerAndSerialNumber **pias, X509 *cert);
443int cms_set1_keyid(ASN1_OCTET_STRING **pkeyid, X509 *cert);
444
445BIO *cms_EncryptedContent_init_bio(CMS_EncryptedContentInfo *ec);
446BIO *cms_EncryptedData_init_bio(CMS_ContentInfo *cms);
447int cms_EncryptedContent_init(CMS_EncryptedContentInfo *ec,
448 const EVP_CIPHER *cipher, const unsigned char *key, size_t keylen);
449
450int cms_Receipt_verify(CMS_ContentInfo *cms, CMS_ContentInfo *req_cms);
451int cms_msgSigDigest_add1(CMS_SignerInfo *dest, CMS_SignerInfo *src);
452ASN1_OCTET_STRING *cms_encode_Receipt(CMS_SignerInfo *si);
453
454BIO *cms_EnvelopedData_init_bio(CMS_ContentInfo *cms);
455CMS_EnvelopedData *cms_get0_enveloped(CMS_ContentInfo *cms);
456int cms_env_asn1_ctrl(CMS_RecipientInfo *ri, int cmd);
457int cms_pkey_get_ri_type(EVP_PKEY *pk);
458/* KARI routines */
459int cms_RecipientInfo_kari_init(CMS_RecipientInfo *ri, X509 *recip,
460 EVP_PKEY *pk, unsigned int flags);
461int cms_RecipientInfo_kari_encrypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri);
462
463/* PWRI routines */
464int cms_RecipientInfo_pwri_crypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri,
465 int en_de);
466
467extern const ASN1_ITEM CMS_CertificateChoices_it;
468extern const ASN1_ITEM CMS_DigestedData_it;
469extern const ASN1_ITEM CMS_EncryptedData_it;
470extern const ASN1_ITEM CMS_EnvelopedData_it;
471extern const ASN1_ITEM CMS_KEKRecipientInfo_it;
472extern const ASN1_ITEM CMS_KeyAgreeRecipientInfo_it;
473extern const ASN1_ITEM CMS_KeyTransRecipientInfo_it;
474extern const ASN1_ITEM CMS_OriginatorPublicKey_it;
475extern const ASN1_ITEM CMS_OtherKeyAttribute_it;
476extern const ASN1_ITEM CMS_Receipt_it;
477extern const ASN1_ITEM CMS_ReceiptRequest_it;
478extern const ASN1_ITEM CMS_RecipientEncryptedKey_it;
479extern const ASN1_ITEM CMS_RecipientKeyIdentifier_it;
480extern const ASN1_ITEM CMS_RevocationInfoChoice_it;
481extern const ASN1_ITEM CMS_SignedData_it;
482extern const ASN1_ITEM CMS_CompressedData_it;
483
484#endif
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