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1 /* pk7_asn.c */ |
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2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL |
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3 * project 2000. |
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4 */ |
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5 /* ==================================================================== |
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6 * Copyright (c) 2000 The OpenSSL Project. All rights reserved. |
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7 * |
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8 * Redistribution and use in source and binary forms, with or without |
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9 * modification, are permitted provided that the following conditions |
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10 * are met: |
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11 * |
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12 * 1. Redistributions of source code must retain the above copyright |
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13 * notice, this list of conditions and the following disclaimer. |
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14 * |
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15 * 2. Redistributions in binary form must reproduce the above copyright |
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16 * notice, this list of conditions and the following disclaimer in |
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17 * the documentation and/or other materials provided with the |
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18 * distribution. |
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19 * |
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20 * 3. All advertising materials mentioning features or use of this |
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21 * software must display the following acknowledgment: |
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22 * "This product includes software developed by the OpenSSL Project |
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23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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24 * |
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25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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26 * endorse or promote products derived from this software without |
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27 * prior written permission. For written permission, please contact |
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28 * licensing@OpenSSL.org. |
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29 * |
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30 * 5. Products derived from this software may not be called "OpenSSL" |
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31 * nor may "OpenSSL" appear in their names without prior written |
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32 * permission of the OpenSSL Project. |
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33 * |
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34 * 6. Redistributions of any form whatsoever must retain the following |
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35 * acknowledgment: |
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36 * "This product includes software developed by the OpenSSL Project |
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37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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38 * |
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39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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50 * OF THE POSSIBILITY OF SUCH DAMAGE. |
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51 * ==================================================================== |
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52 * |
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53 * This product includes cryptographic software written by Eric Young |
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54 * (eay@cryptsoft.com). This product includes software written by Tim |
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55 * Hudson (tjh@cryptsoft.com). |
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56 * |
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57 */ |
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58 |
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59 #include <stdio.h> |
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60 #include "cryptlib.h" |
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61 #include <openssl/asn1t.h> |
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62 #include <openssl/pkcs7.h> |
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63 #include <openssl/x509.h> |
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64 |
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65 /* PKCS#7 ASN1 module */ |
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66 |
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67 /* This is the ANY DEFINED BY table for the top level PKCS#7 structure */ |
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68 |
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69 ASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0); |
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70 |
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71 ASN1_ADB(PKCS7) = { |
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72 ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING_NDEF, 0)), |
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73 ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)), |
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74 ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)), |
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75 ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)), |
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76 ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)), |
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77 ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0)) |
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78 } ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL); |
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79 |
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80 ASN1_NDEF_SEQUENCE(PKCS7) = { |
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81 ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT), |
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82 ASN1_ADB_OBJECT(PKCS7) |
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83 }ASN1_NDEF_SEQUENCE_END(PKCS7) |
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84 |
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85 IMPLEMENT_ASN1_FUNCTIONS(PKCS7) |
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86 IMPLEMENT_ASN1_NDEF_FUNCTION(PKCS7) |
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87 IMPLEMENT_ASN1_DUP_FUNCTION(PKCS7) |
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88 |
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89 ASN1_NDEF_SEQUENCE(PKCS7_SIGNED) = { |
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90 ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER), |
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91 ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR), |
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92 ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7), |
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93 ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0), |
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94 ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1), |
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95 ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO) |
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96 } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGNED) |
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97 |
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98 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED) |
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99 |
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100 /* Minor tweak to operation: free up EVP_PKEY */ |
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101 static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it) |
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102 { |
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103 if(operation == ASN1_OP_FREE_POST) { |
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104 PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval; |
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105 EVP_PKEY_free(si->pkey); |
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106 } |
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107 return 1; |
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108 } |
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109 |
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110 ASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = { |
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111 ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER), |
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112 ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), |
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113 ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR), |
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114 /* NB this should be a SET OF but we use a SEQUENCE OF so the |
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115 * original order * is retained when the structure is reencoded. |
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116 * Since the attributes are implicitly tagged this will not affect |
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117 * the encoding. |
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118 */ |
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119 ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0), |
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120 ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR), |
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121 ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING), |
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122 ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1) |
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123 } ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO) |
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124 |
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125 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO) |
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126 |
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127 ASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = { |
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128 ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME), |
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129 ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER) |
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130 } ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL) |
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131 |
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132 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL) |
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133 |
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134 ASN1_NDEF_SEQUENCE(PKCS7_ENVELOPE) = { |
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135 ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER), |
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136 ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), |
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137 ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT) |
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138 } ASN1_NDEF_SEQUENCE_END(PKCS7_ENVELOPE) |
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139 |
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140 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE) |
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141 |
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142 /* Minor tweak to operation: free up X509 */ |
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143 static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it) |
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144 { |
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145 if(operation == ASN1_OP_FREE_POST) { |
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146 PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval; |
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147 X509_free(ri->cert); |
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148 } |
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149 return 1; |
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150 } |
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151 |
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152 ASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = { |
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153 ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER), |
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154 ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), |
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155 ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR), |
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156 ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING) |
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157 } ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO) |
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158 |
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159 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO) |
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160 |
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161 ASN1_NDEF_SEQUENCE(PKCS7_ENC_CONTENT) = { |
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162 ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT), |
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163 ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR), |
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164 ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING, 0) |
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165 } ASN1_NDEF_SEQUENCE_END(PKCS7_ENC_CONTENT) |
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166 |
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167 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT) |
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168 |
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169 ASN1_NDEF_SEQUENCE(PKCS7_SIGN_ENVELOPE) = { |
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170 ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER), |
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171 ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), |
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172 ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR), |
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173 ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT), |
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174 ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0), |
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175 ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1), |
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176 ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO) |
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177 } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGN_ENVELOPE) |
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178 |
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179 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE) |
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180 |
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181 ASN1_NDEF_SEQUENCE(PKCS7_ENCRYPT) = { |
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182 ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER), |
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183 ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT) |
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184 } ASN1_NDEF_SEQUENCE_END(PKCS7_ENCRYPT) |
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185 |
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186 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT) |
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187 |
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188 ASN1_NDEF_SEQUENCE(PKCS7_DIGEST) = { |
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189 ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER), |
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190 ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR), |
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191 ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7), |
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192 ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING) |
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193 } ASN1_NDEF_SEQUENCE_END(PKCS7_DIGEST) |
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194 |
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195 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST) |
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196 |
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197 /* Specials for authenticated attributes */ |
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198 |
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199 /* When signing attributes we want to reorder them to match the sorted |
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200 * encoding. |
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201 */ |
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202 |
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203 ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) = |
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204 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) |
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205 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN) |
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206 |
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207 /* When verifying attributes we need to use the received order. So |
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208 * we use SEQUENCE OF and tag it to SET OF |
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209 */ |
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210 |
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211 ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) = |
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212 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL, |
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213 V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) |
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214 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY) |