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9d6b1ce6 | 1 | /* pk7_asn.c */ |
0f113f3e MC |
2 | /* |
3 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project | |
4 | * 2000. | |
9d6b1ce6 DSH |
5 | */ |
6 | /* ==================================================================== | |
7 | * Copyright (c) 2000 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 | |
0f113f3e | 14 | * notice, this list of conditions and the following disclaimer. |
9d6b1ce6 DSH |
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 | * This product includes cryptographic software written by Eric Young | |
55 | * (eay@cryptsoft.com). This product includes software written by Tim | |
56 | * Hudson (tjh@cryptsoft.com). | |
57 | * | |
58 | */ | |
59 | ||
60 | #include <stdio.h> | |
b39fc560 | 61 | #include "internal/cryptlib.h" |
9d6b1ce6 DSH |
62 | #include <openssl/asn1t.h> |
63 | #include <openssl/pkcs7.h> | |
d66ace9d | 64 | #include <openssl/x509.h> |
9d6b1ce6 DSH |
65 | |
66 | /* PKCS#7 ASN1 module */ | |
67 | ||
68 | /* This is the ANY DEFINED BY table for the top level PKCS#7 structure */ | |
69 | ||
70 | ASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0); | |
71 | ||
72 | ASN1_ADB(PKCS7) = { | |
0f113f3e MC |
73 | ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING_NDEF, 0)), |
74 | ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)), | |
75 | ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)), | |
76 | ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)), | |
77 | ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)), | |
78 | ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0)) | |
9d6b1ce6 DSH |
79 | } ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL); |
80 | ||
8931b30d DSH |
81 | /* PKCS#7 streaming support */ |
82 | static int pk7_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, | |
0f113f3e | 83 | void *exarg) |
8931b30d | 84 | { |
0f113f3e MC |
85 | ASN1_STREAM_ARG *sarg = exarg; |
86 | PKCS7 **pp7 = (PKCS7 **)pval; | |
87 | ||
88 | switch (operation) { | |
89 | ||
90 | case ASN1_OP_STREAM_PRE: | |
91 | if (PKCS7_stream(&sarg->boundary, *pp7) <= 0) | |
92 | return 0; | |
93 | case ASN1_OP_DETACHED_PRE: | |
94 | sarg->ndef_bio = PKCS7_dataInit(*pp7, sarg->out); | |
95 | if (!sarg->ndef_bio) | |
96 | return 0; | |
97 | break; | |
98 | ||
99 | case ASN1_OP_STREAM_POST: | |
100 | case ASN1_OP_DETACHED_POST: | |
101 | if (PKCS7_dataFinal(*pp7, sarg->ndef_bio) <= 0) | |
102 | return 0; | |
103 | break; | |
104 | ||
105 | } | |
106 | return 1; | |
8931b30d DSH |
107 | } |
108 | ||
109 | ASN1_NDEF_SEQUENCE_cb(PKCS7, pk7_cb) = { | |
0f113f3e MC |
110 | ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT), |
111 | ASN1_ADB_OBJECT(PKCS7) | |
8931b30d | 112 | }ASN1_NDEF_SEQUENCE_END_cb(PKCS7, PKCS7) |
9d6b1ce6 DSH |
113 | |
114 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7) | |
0f113f3e | 115 | |
230fd6b7 | 116 | IMPLEMENT_ASN1_NDEF_FUNCTION(PKCS7) |
0f113f3e | 117 | |
1241126a | 118 | IMPLEMENT_ASN1_DUP_FUNCTION(PKCS7) |
9d6b1ce6 | 119 | |
230fd6b7 | 120 | ASN1_NDEF_SEQUENCE(PKCS7_SIGNED) = { |
0f113f3e MC |
121 | ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER), |
122 | ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR), | |
123 | ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7), | |
124 | ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0), | |
125 | ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1), | |
126 | ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO) | |
230fd6b7 | 127 | } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGNED) |
9d6b1ce6 DSH |
128 | |
129 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED) | |
130 | ||
131 | /* Minor tweak to operation: free up EVP_PKEY */ | |
24484759 | 132 | static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
0f113f3e | 133 | void *exarg) |
9d6b1ce6 | 134 | { |
0f113f3e MC |
135 | if (operation == ASN1_OP_FREE_POST) { |
136 | PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval; | |
137 | EVP_PKEY_free(si->pkey); | |
138 | } | |
139 | return 1; | |
9d6b1ce6 DSH |
140 | } |
141 | ||
142 | ASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = { | |
0f113f3e MC |
143 | ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER), |
144 | ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), | |
145 | ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR), | |
146 | /* NB this should be a SET OF but we use a SEQUENCE OF so the | |
147 | * original order * is retained when the structure is reencoded. | |
148 | * Since the attributes are implicitly tagged this will not affect | |
149 | * the encoding. | |
150 | */ | |
151 | ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0), | |
152 | ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR), | |
153 | ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING), | |
154 | ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1) | |
d339187b | 155 | } ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO) |
9d6b1ce6 DSH |
156 | |
157 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO) | |
158 | ||
159 | ASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = { | |
0f113f3e MC |
160 | ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME), |
161 | ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER) | |
d339187b | 162 | } ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL) |
9d6b1ce6 DSH |
163 | |
164 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL) | |
165 | ||
230fd6b7 | 166 | ASN1_NDEF_SEQUENCE(PKCS7_ENVELOPE) = { |
0f113f3e MC |
167 | ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER), |
168 | ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), | |
169 | ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT) | |
230fd6b7 | 170 | } ASN1_NDEF_SEQUENCE_END(PKCS7_ENVELOPE) |
9d6b1ce6 DSH |
171 | |
172 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE) | |
173 | ||
a43cf9fa | 174 | /* Minor tweak to operation: free up X509 */ |
24484759 | 175 | static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
0f113f3e | 176 | void *exarg) |
a43cf9fa | 177 | { |
0f113f3e MC |
178 | if (operation == ASN1_OP_FREE_POST) { |
179 | PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval; | |
180 | X509_free(ri->cert); | |
181 | } | |
182 | return 1; | |
a43cf9fa DSH |
183 | } |
184 | ||
185 | ASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = { | |
0f113f3e MC |
186 | ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER), |
187 | ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), | |
188 | ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR), | |
189 | ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING) | |
d339187b | 190 | } ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO) |
9d6b1ce6 DSH |
191 | |
192 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO) | |
193 | ||
230fd6b7 | 194 | ASN1_NDEF_SEQUENCE(PKCS7_ENC_CONTENT) = { |
0f113f3e MC |
195 | ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT), |
196 | ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR), | |
197 | ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING_NDEF, 0) | |
230fd6b7 | 198 | } ASN1_NDEF_SEQUENCE_END(PKCS7_ENC_CONTENT) |
9d6b1ce6 DSH |
199 | |
200 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT) | |
201 | ||
230fd6b7 | 202 | ASN1_NDEF_SEQUENCE(PKCS7_SIGN_ENVELOPE) = { |
0f113f3e MC |
203 | ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER), |
204 | ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), | |
205 | ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR), | |
206 | ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT), | |
207 | ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0), | |
208 | ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1), | |
209 | ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO) | |
230fd6b7 | 210 | } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGN_ENVELOPE) |
9d6b1ce6 DSH |
211 | |
212 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE) | |
213 | ||
230fd6b7 | 214 | ASN1_NDEF_SEQUENCE(PKCS7_ENCRYPT) = { |
0f113f3e MC |
215 | ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER), |
216 | ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT) | |
230fd6b7 | 217 | } ASN1_NDEF_SEQUENCE_END(PKCS7_ENCRYPT) |
9d6b1ce6 DSH |
218 | |
219 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT) | |
220 | ||
230fd6b7 | 221 | ASN1_NDEF_SEQUENCE(PKCS7_DIGEST) = { |
0f113f3e MC |
222 | ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER), |
223 | ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR), | |
224 | ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7), | |
225 | ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING) | |
230fd6b7 | 226 | } ASN1_NDEF_SEQUENCE_END(PKCS7_DIGEST) |
3c07b4c2 DSH |
227 | |
228 | IMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST) | |
ec5add87 DSH |
229 | |
230 | /* Specials for authenticated attributes */ | |
231 | ||
0f113f3e MC |
232 | /* |
233 | * When signing attributes we want to reorder them to match the sorted | |
ec5add87 DSH |
234 | * encoding. |
235 | */ | |
236 | ||
0f113f3e MC |
237 | ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) = |
238 | ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) | |
d339187b | 239 | ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN) |
ec5add87 | 240 | |
0f113f3e MC |
241 | /* |
242 | * When verifying attributes we need to use the received order. So we use | |
243 | * SEQUENCE OF and tag it to SET OF | |
ec5add87 DSH |
244 | */ |
245 | ||
0f113f3e MC |
246 | ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) = |
247 | ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL, | |
248 | V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) | |
d339187b | 249 | ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY) |
9194296d DSH |
250 | |
251 | IMPLEMENT_ASN1_PRINT_FUNCTION(PKCS7) |