mirror of
https://github.com/PurpleI2P/i2pd.git
synced 2025-03-21 08:46:39 +01:00
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
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#include <openssl/rand.h>
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#include "Crypto.h"
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#include "Ed25519.h"
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#include "ChaCha20.h"
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#include "Poly1305.h"
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#include "NTCP2.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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NTCP2Session::NTCP2Session (std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter):
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TransportSession (in_RemoteRouter, 30)
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{
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}
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NTCP2Session::~NTCP2Session ()
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{
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}
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void NTCP2Session::CreateEphemeralKey (uint8_t * pub)
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{
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uint8_t key[32];
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RAND_bytes (key, 32);
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i2p::crypto::Ed25519::ExpandPrivateKey (key, m_ExpandedPrivateKey);
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BN_CTX * ctx = BN_CTX_new ();
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auto publicKey = i2p::crypto::GetEd25519 ()->GeneratePublicKey (m_ExpandedPrivateKey, ctx);
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i2p::crypto::GetEd25519 ()->EncodePublicKey (publicKey, pub, ctx);
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BN_CTX_free (ctx);
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}
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void NTCP2Session::SendSessionRequest (const uint8_t * iv)
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{
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i2p::crypto::AESAlignedBuffer<32> x;
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CreateEphemeralKey (x);
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// encrypt X
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i2p::crypto::CBCEncryption encryption;
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encryption.SetKey (GetRemoteIdentity ()->GetIdentHash ());
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encryption.SetIV (iv);
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encryption.Encrypt (2, x.GetChipherBlock (), x.GetChipherBlock ());
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}
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}
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}
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