1 // Copyright (c) 2013 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 NET_QUIC_CRYPTO_EPHEMERAL_KEY_SOURCE_H_ 6 #define NET_QUIC_CRYPTO_EPHEMERAL_KEY_SOURCE_H_ 7 8 #include <string> 9 10 #include "base/strings/string_piece.h" 11 #include "net/base/net_export.h" 12 #include "net/quic/quic_time.h" 13 14 namespace net { 15 16 class KeyExchange; 17 class QuicRandom; 18 19 // EphemeralKeySource manages and rotates ephemeral keys as they can be reused 20 // for several connections in a short space of time. Since the implementation 21 // of this may involve locking or thread-local data, this interface abstracts 22 // that away. 23 class NET_EXPORT_PRIVATE EphemeralKeySource { 24 public: 25 virtual ~EphemeralKeySource() {} 26 27 // CalculateForwardSecureKey generates an ephemeral public/private key pair 28 // using the algorithm |key_exchange|, sets |*public_value| to the public key 29 // and returns the shared key between |peer_public_value| and the private 30 // key. |*public_value| will be sent to the peer to be used with the peer's 31 // private key. 32 virtual std::string CalculateForwardSecureKey( 33 const KeyExchange* key_exchange, 34 QuicRandom* rand, 35 QuicTime now, 36 base::StringPiece peer_public_value, 37 std::string* public_value) = 0; 38 }; 39 40 } // namespace net 41 42 #endif // NET_QUIC_CRYPTO_EPHEMERAL_KEY_SOURCE_H_ 43
