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I2P: End-to-End encrypted and anonymous Internet
https://i2pd.website/
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70 lines
1.4 KiB
70 lines
1.4 KiB
/* |
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* Copyright (c) 2022, The PurpleI2P Project |
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* |
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* This file is part of Purple i2pd project and licensed under BSD3 |
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* |
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* See full license text in LICENSE file at top of project tree |
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*/ |
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#ifndef SSU2_H__ |
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#define SSU2_H__ |
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#include <memory> |
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#include "Crypto.h" |
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#include "RouterInfo.h" |
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#include "TransportSession.h" |
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namespace i2p |
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{ |
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namespace transport |
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{ |
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const int SSU2_TERMINATION_TIMEOUT = 330; // 5.5 minutes |
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enum SSU2MessageType |
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{ |
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eSSU2SessionRequest = 0 |
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}; |
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class SSU2Session: public TransportSession, public std::enable_shared_from_this<SSU2Session> |
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{ |
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union Header |
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{ |
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uint64_t ll[2]; |
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uint8_t buf[16]; |
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struct |
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{ |
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uint8_t connID[8]; |
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uint8_t packetNum[4]; |
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uint8_t type; |
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uint8_t flags[3]; |
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} h; |
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}; |
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public: |
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SSU2Session (std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter = nullptr, |
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std::shared_ptr<const i2p::data::RouterInfo::Address> addr = nullptr, bool peerTest = false); |
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~SSU2Session (); |
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private: |
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void SendSessionRequest (); |
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void EncryptHeader (Header& h); |
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void CreateHeaderMask (const uint8_t * kh1, const uint8_t * nonce1, const uint8_t * kh2, const uint8_t * nonce2); |
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private: |
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std::shared_ptr<i2p::crypto::X25519Keys> m_EphemeralKeys; |
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std::unique_ptr<i2p::crypto::NoiseSymmetricState> m_NoiseState; |
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std::shared_ptr<const i2p::data::RouterInfo::Address> m_Address; |
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union |
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{ |
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uint64_t ll[2]; |
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uint8_t buf[16]; |
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} m_HeaderMask; |
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}; |
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} |
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} |
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#endif
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