2 * Copyright 2001-2010 Internet2
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
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11 * distributed under the License is distributed on an "AS IS" BASIS,
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13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * @file xmltooling/encryption/Decrypter.h
20 * Wrapper API for XML Decryption functionality.
23 #if !defined(__xmltooling_decrypter_h__) && !defined(XMLTOOLING_NO_XMLSEC)
24 #define __xmltooling_decrypter_h__
26 #include <xmltooling/exceptions.h>
31 namespace xmltooling {
32 class XMLTOOL_API CredentialCriteria;
33 class XMLTOOL_API CredentialResolver;
36 namespace xmlencryption {
38 class XMLTOOL_API EncryptedData;
39 class XMLTOOL_API EncryptedKey;
40 class XMLTOOL_API EncryptedKeyResolver;
43 * Wrapper API for XML Decryption functionality.
45 class XMLTOOL_API Decrypter
51 * @param credResolver locked credential resolver to supply decryption keys
52 * @param criteria optional external criteria to use with resolver
53 * @param EKResolver locates an EncryptedKey pertaining to the EncryptedData
56 const xmltooling::CredentialResolver* credResolver=nullptr,
57 xmltooling::CredentialCriteria* criteria=nullptr,
58 const EncryptedKeyResolver* EKResolver=nullptr
64 * Replace the current EncryptedKeyResolver interface, if any, with a new one.
66 * @param EKResolver the EncryptedKeyResolver to attach
68 void setEncryptedKeyResolver(const EncryptedKeyResolver* EKResolver);
71 * Replace the current CredentialResolver interface, if any, with a new one.
73 * @param resolver the locked CredentialResolver to attach, or nullptr to clear
74 * @param criteria optional external criteria to use with resolver
76 void setKEKResolver(const xmltooling::CredentialResolver* resolver, xmltooling::CredentialCriteria* criteria);
79 * Decrypts the supplied information using the supplied key, and returns
80 * the resulting as a DOM fragment owned by the document associated with the
81 * marshalled EncryptedData object.
83 * Note that the DOM nodes will be invalidated once that document
84 * is released. The caller should therefore process the DOM fragment as
85 * required and drop all references to it before that happens. The usual
86 * approach should be to unmarshall the DOM and then release it, or the
87 * DOM can also be imported into a separately owned document.
89 * @param encryptedData the data to decrypt
90 * @param key the decryption key to use (it will not be freed internally)
91 * @return the decrypted DOM fragment
93 xercesc::DOMDocumentFragment* decryptData(const EncryptedData& encryptedData, XSECCryptoKey* key);
96 * Decrypts the supplied information and returns the resulting as a DOM
97 * fragment owned by the document associated with the marshalled EncryptedData
100 * Note that the DOM nodes will be invalidated once that document
101 * is released. The caller should therefore process the DOM fragment as
102 * required and drop all references to it before that happens. The usual
103 * approach should be to unmarshall the DOM and then release it, or the
104 * DOM can also be imported into a separately owned document.
106 * @param encryptedData the data to decrypt
107 * @param recipient identifier of decrypting entity for use in identifying multi-cast keys
108 * @return the decrypted DOM fragment
110 xercesc::DOMDocumentFragment* decryptData(const EncryptedData& encryptedData, const XMLCh* recipient=nullptr);
113 * Decrypts the supplied information to an output stream.
115 * @param out output stream to receive the decrypted data
116 * @param encryptedData the data to decrypt
117 * @param key the decryption key to use (it will not be freed internally)
119 void decryptData(std::ostream& out, const EncryptedData& encryptedData, XSECCryptoKey* key);
122 * Decrypts the supplied information to an output stream.
124 * @param out output stream to receive the decrypted data
125 * @param encryptedData the data to decrypt
126 * @param recipient identifier of decrypting entity for use in identifying multi-cast keys
128 void decryptData(std::ostream& out, const EncryptedData& encryptedData, const XMLCh* recipient=nullptr);
131 * Decrypts the supplied information and returns the resulting key.
132 * The caller is responsible for deleting the key. The algorithm of the
133 * key must be supplied by the caller based on knowledge of the associated
134 * EncryptedData information.
136 * @param encryptedKey the encrypted/wrapped key to decrypt
137 * @param algorithm the algorithm associated with the decrypted key
138 * @return the decrypted key
140 XSECCryptoKey* decryptKey(const EncryptedKey& encryptedKey, const XMLCh* algorithm);
143 XENCCipher* m_cipher;
144 const xmltooling::CredentialResolver* m_credResolver;
145 xmltooling::CredentialCriteria* m_criteria;
146 const EncryptedKeyResolver* m_EKResolver;
149 DECL_XMLTOOLING_EXCEPTION(DecryptionException,XMLTOOL_EXCEPTIONAPI(XMLTOOL_API),xmlencryption,xmltooling::XMLToolingException,Exceptions in decryption processing);
153 #endif /* __xmltooling_decrypter_h__ */