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NTCP2 added

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orignal 2018-06-05 12:53:13 -04:00
parent cd0f75106a
commit 86c1984982
6 changed files with 89 additions and 6 deletions
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44
libi2pd/NTCP2.cpp Normal file
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#include <openssl/rand.h>
#include "Crypto.h"
#include "Ed25519.h"
#include "ChaCha20.h"
#include "Poly1305.h"
#include "NTCP2.h"
namespace i2p
{
namespace transport
{
NTCP2Session::NTCP2Session (std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter):
TransportSession (in_RemoteRouter, 30)
{
}
NTCP2Session::~NTCP2Session ()
{
}
void NTCP2Session::CreateEphemeralKey (uint8_t * pub)
{
uint8_t key[32];
RAND_bytes (key, 32);
i2p::crypto::Ed25519::ExpandPrivateKey (key, m_ExpandedPrivateKey);
BN_CTX * ctx = BN_CTX_new ();
auto publicKey = i2p::crypto::GetEd25519 ()->GeneratePublicKey (m_ExpandedPrivateKey, ctx);
i2p::crypto::GetEd25519 ()->EncodePublicKey (publicKey, pub, ctx);
BN_CTX_free (ctx);
}
void NTCP2Session::SendSessionRequest (const uint8_t * iv)
{
i2p::crypto::AESAlignedBuffer<32> x;
CreateEphemeralKey (x);
// encrypt X
i2p::crypto::CBCEncryption encryption;
encryption.SetKey (GetRemoteIdentity ()->GetIdentHash ());
encryption.SetIV (iv);
encryption.Encrypt (2, x.GetChipherBlock (), x.GetChipherBlock ());
}
}
}