1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_CHILD_WEBCRYPTO_CRYPTO_DATA_H_ 6 #define CONTENT_CHILD_WEBCRYPTO_CRYPTO_DATA_H_ 7 8 #include <string> 9 #include <vector> 10 11 #include "base/basictypes.h" 12 #include "content/common/content_export.h" 13 #include "third_party/WebKit/public/platform/WebVector.h" 14 15 namespace content { 16 17 namespace webcrypto { 18 19 // Helper to pass around a range of immutable bytes. This is conceptually 20 // similar to base::StringPiece, but for crypto byte data. 21 // 22 // The data used at construction is NOT owned, and should remain valid as long 23 // as the CryptoData is being used. 24 class CONTENT_EXPORT CryptoData { 25 public: 26 // Constructs empty data. 27 CryptoData(); 28 29 CryptoData(const unsigned char* bytes, unsigned int byte_length); 30 31 // These constructors do NOT copy the data. Hence the base pointer should 32 // remain valid for the lifetime of CryptoData. 33 explicit CryptoData(const std::vector<unsigned char>& bytes); 34 explicit CryptoData(const std::string& bytes); 35 explicit CryptoData(const blink::WebVector<unsigned char>& bytes); 36 37 const unsigned char* bytes() const { return bytes_; } 38 unsigned int byte_length() const { return byte_length_; } 39 40 private: 41 const unsigned char* const bytes_; 42 const unsigned int byte_length_; 43 }; 44 45 } // namespace webcrypto 46 47 } // namespace content 48 49 #endif // CONTENT_CHILD_WEBCRYPTO_CRYPTO_DATA_H_ 50
