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pre-calculate ephemeral keys for x25519

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orignal 2020-06-29 20:02:09 -04:00
parent df9965e129
commit 1f31fdc257
4 changed files with 57 additions and 30 deletions
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23
libi2pd/Transports.h
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@ -32,33 +32,37 @@ namespace i2p
{
namespace transport
{
class DHKeysPairSupplier
template<typename Keys>
class EphemeralKeysSupplier
{
// called from this file only, so implementation is in Transports.cpp
public:
DHKeysPairSupplier (int size);
~DHKeysPairSupplier ();
EphemeralKeysSupplier (int size);
~EphemeralKeysSupplier ();
void Start ();
void Stop ();
std::shared_ptr<i2p::crypto::DHKeys> Acquire ();
void Return (std::shared_ptr<i2p::crypto::DHKeys> pair);
std::shared_ptr<Keys> Acquire ();
void Return (std::shared_ptr<Keys> pair);
private:
void Run ();
void CreateDHKeysPairs (int num);
void CreateEphemeralKeys (int num);
private:
const int m_QueueSize;
std::queue<std::shared_ptr<i2p::crypto::DHKeys> > m_Queue;
std::queue<std::shared_ptr<Keys> > m_Queue;
bool m_IsRunning;
std::thread * m_Thread;
std::condition_variable m_Acquired;
std::mutex m_AcquiredMutex;
};
typedef EphemeralKeysSupplier<i2p::crypto::DHKeys> DHKeysPairSupplier;
typedef EphemeralKeysSupplier<i2p::crypto::X25519Keys> X25519KeysPairSupplier;
struct Peer
{
int numAttempts;
@ -97,6 +101,8 @@ namespace transport
boost::asio::io_service& GetService () { return *m_Service; };
std::shared_ptr<i2p::crypto::DHKeys> GetNextDHKeysPair ();
void ReuseDHKeysPair (std::shared_ptr<i2p::crypto::DHKeys> pair);
std::shared_ptr<i2p::crypto::X25519Keys> GetNextX25519KeysPair ();
void ReuseX25519KeysPair (std::shared_ptr<i2p::crypto::X25519Keys> pair);
void SendMessage (const i2p::data::IdentHash& ident, std::shared_ptr<i2p::I2NPMessage> msg);
void SendMessages (const i2p::data::IdentHash& ident, const std::vector<std::shared_ptr<i2p::I2NPMessage> >& msgs);
@ -160,6 +166,7 @@ namespace transport
std::unordered_map<i2p::data::IdentHash, Peer> m_Peers;
DHKeysPairSupplier m_DHKeysPairSupplier;
X25519KeysPairSupplier m_X25519KeysPairSupplier;
std::atomic<uint64_t> m_TotalSentBytes, m_TotalReceivedBytes, m_TotalTransitTransmittedBytes;
uint32_t m_InBandwidth, m_OutBandwidth, m_TransitBandwidth; // bytes per second