1 | /*
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2 | * xmlenc.h - XML Encryption
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3 | * Copyright (C) 2003 Justin Karneges
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4 | *
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5 | * This library is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU Lesser General Public
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7 | * License as published by the Free Software Foundation; either
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8 | * version 2.1 of the License, or (at your option) any later version.
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9 | *
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10 | * This library is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 | * Lesser General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU Lesser General Public
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16 | * License along with this library; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18 | *
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19 | */
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20 |
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21 | #ifndef CS_XMLENC_H
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22 | #define CS_XMLENC_H
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23 |
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24 | #include<qstring.h>
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25 | #include<qcstring.h>
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26 | #include<qstringlist.h>
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27 | #include<qdom.h>
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28 | #include<qvaluelist.h>
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29 | #include"../util/cipher.h"
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30 |
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31 | namespace XmlEnc
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32 | {
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33 | enum Method { None, TripleDES, AES_128, AES_256, RSA_1_5, RSA_OAEP };
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34 | enum DataType { Arbitrary, Element, Content };
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35 |
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36 | class KeyInfo
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37 | {
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38 | public:
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39 | KeyInfo();
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40 | ~KeyInfo();
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41 |
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42 | bool isEmpty() const;
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43 | QString name() const;
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44 | QByteArray value () const;
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45 | QStringList retrievalMethods() const;
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46 | QDomElement encryptedKey() const;
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47 | void setName(const QString &);
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48 | void setValue(const QByteArray &);
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49 | void setRetrievalMethods(const QStringList &);
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50 | void attachEncryptedKey(const QDomElement &);
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51 |
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52 | QDomElement toXml(QDomDocument *) const;
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53 | bool fromXml(const QDomElement &);
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54 |
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55 | private:
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56 | QString v_name;
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57 | QByteArray v_value;
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58 | QStringList v_rmethods;
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59 | QDomElement v_key;
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60 | };
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61 |
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62 | class Reference
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63 | {
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64 | public:
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65 | Reference() {}
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66 |
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67 | QString uri() const { return v_uri; }
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68 | QDomElement transforms() const { return v_trans; }
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69 | void setURI(const QString &s) { v_uri = s; }
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70 | void setTransforms(const QDomElement &e) { v_trans = e; }
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71 |
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72 | private:
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73 | QString v_uri;
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74 | QDomElement v_trans;
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75 | };
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76 | typedef QValueList<Reference> ReferenceList;
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77 |
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78 | class EncryptionProperty
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79 | {
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80 | public:
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81 | EncryptionProperty(const QString &target="", const QString &id="");
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82 |
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83 | QString target() const;
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84 | QString id() const;
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85 | QString property(const QString &var) const;
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86 | void setTarget(const QString &);
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87 | void setId(const QString &);
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88 | void setProperty(const QString &var, const QString &val);
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89 |
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90 | QDomElement toXml(QDomDocument *) const;
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91 | bool fromXml(QDomElement &);
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92 |
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93 | private:
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94 | QString v_target, v_id;
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95 | QStringList vars, vals;
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96 | };
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97 |
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98 | class EncryptionProperties : public QValueList<EncryptionProperty>
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99 | {
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100 | public:
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101 | EncryptionProperties(const QString &s="");
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102 |
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103 | QString id() const;
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104 | void setId(const QString &);
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105 |
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106 | QDomElement toXml(QDomDocument *) const;
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107 | bool fromXml(QDomElement &);
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108 |
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109 | private:
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110 | QString v_id;
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111 | };
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112 |
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113 | class Encrypted
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114 | {
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115 | public:
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116 | enum Type { Key, Data };
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117 | Encrypted();
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118 | ~Encrypted();
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119 |
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120 | void clear();
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121 |
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122 | Method method() const { return v_method; }
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123 | QString id() const { return v_id; }
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124 | DataType dataType() const { return v_dataType; }
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125 | Type type() const { return v_type; }
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126 | QString mimeType() const { return v_mimeType; }
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127 | const KeyInfo & keyInfo() const { return v_keyInfo; }
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128 | bool isReference() const { return (!v_cref.uri().isEmpty()); }
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129 | const Reference & dataReference() const { return v_cref; }
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130 | QString carriedKeyName() const { return v_carrykeyname; }
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131 | const ReferenceList & referenceList() const { return v_reflist; }
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132 | const EncryptionProperties & encryptionProperties() const { return v_props; }
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133 |
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134 | void setId(const QString &id) { v_id = id; }
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135 | void setDataType(DataType t) { v_dataType = t; }
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136 | void setType(Type t) { v_type = t; }
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137 | void setMimeType(const QString &mime) { v_mimeType = mime; }
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138 | void setKeyInfo(const KeyInfo &info) { v_keyInfo = info; }
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139 | void setDataReference(const Reference &cref, Method m);
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140 | void setCarriedKeyName(const QString &s) { v_carrykeyname = s; }
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141 | void setReferenceList(const ReferenceList &rl) { v_reflist = rl; }
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142 | void setEncryptionProperties(const EncryptionProperties &p) { v_props = p; }
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143 |
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144 | bool encryptData(const QByteArray &data, const Cipher::Key &key);
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145 | bool encryptElement(const QDomElement &data, const Cipher::Key &key);
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146 | bool encryptContent(const QDomElement &data, const Cipher::Key &key);
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147 | bool encryptKey(const Cipher::Key &data, const Cipher::Key &key);
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148 | bool encryptKey(const Cipher::Key &data, const RSAKey &key);
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149 |
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150 | QByteArray decryptData(const Cipher::Key &key) const;
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151 | QDomElement decryptElement(QDomDocument *, const Cipher::Key &key) const;
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152 | QDomNodeList decryptContent(QDomDocument *, const Cipher::Key &key) const;
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153 | QByteArray decryptKey(const Cipher::Key &key) const;
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154 | QByteArray decryptKey(const RSAKey &key) const;
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155 |
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156 | QDomElement toXml(QDomDocument *) const;
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157 | bool fromXml(const QDomElement &);
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158 |
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159 | private:
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160 | Method v_method;
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161 | QString v_id;
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162 | DataType v_dataType;
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163 | Type v_type;
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164 | QString v_mimeType;
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165 | KeyInfo v_keyInfo;
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166 |
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167 | QString v_cval;
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168 | Reference v_cref;
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169 | QString v_carrykeyname;
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170 | ReferenceList v_reflist;
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171 | EncryptionProperties v_props;
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172 |
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173 | QString baseNS;
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174 | Method cipherTypeToMethod(Cipher::Type) const;
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175 | QString methodToAlgorithm(Method, Type) const;
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176 | Method algorithmToMethod(const QString &) const;
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177 | };
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178 | };
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179 |
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180 | #endif
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