1 /* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef Key_h 32 #define Key_h 33 34 #include "bindings/v8/ScriptWrappable.h" 35 #include "modules/crypto/NormalizeAlgorithm.h" 36 #include "platform/heap/Handle.h" 37 #include "public/platform/WebCryptoAlgorithm.h" 38 #include "public/platform/WebCryptoKey.h" 39 #include "wtf/Forward.h" 40 #include "wtf/RefCounted.h" 41 #include "wtf/text/WTFString.h" 42 43 namespace WebCore { 44 45 class CryptoResult; 46 class KeyAlgorithm; 47 48 class Key : public GarbageCollectedFinalized<Key>, public ScriptWrappable { 49 public: create(const blink::WebCryptoKey & key)50 static Key* create(const blink::WebCryptoKey& key) 51 { 52 return new Key(key); 53 } 54 55 ~Key(); 56 57 String type() const; 58 bool extractable() const; 59 KeyAlgorithm* algorithm(); 60 Vector<String> usages() const; 61 key()62 const blink::WebCryptoKey& key() const { return m_key; } 63 64 // If the key cannot be used with the indicated algorithm, returns false 65 // and completes the CryptoResult with an error. 66 bool canBeUsedForAlgorithm(const blink::WebCryptoAlgorithm&, blink::WebCryptoOperation, CryptoResult*) const; 67 68 // On failure, these return false and complete the CryptoResult with an error. 69 static bool parseFormat(const String&, blink::WebCryptoKeyFormat&, CryptoResult*); 70 static bool parseUsageMask(const Vector<String>&, blink::WebCryptoKeyUsageMask&, CryptoResult*); 71 72 void trace(Visitor*); 73 74 protected: 75 explicit Key(const blink::WebCryptoKey&); 76 77 const blink::WebCryptoKey m_key; 78 Member<KeyAlgorithm> m_algorithm; 79 }; 80 81 } // namespace WebCore 82 83 #endif 84