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use ElGamalEcryption for garlic encryption

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This commit is contained in:
orignal 2014-02-20 18:42:55 -05:00
parent 354015e9ca
commit 8d6c08ec78
7 changed files with 33 additions and 33 deletions
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26
Garlic.cpp
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@ -2,7 +2,6 @@
#include "I2PEndian.h"
#include <map>
#include <string>
#include "ElGamal.h"
#include "RouterContext.h"
#include "I2NPProtocol.h"
#include "Tunnel.h"
@ -14,9 +13,10 @@ namespace i2p
{
namespace garlic
{
GarlicRoutingSession::GarlicRoutingSession (const i2p::data::RoutingDestination * destination, int numTags):
GarlicRoutingSession::GarlicRoutingSession (const i2p::data::RoutingDestination& destination, int numTags):
m_Destination (destination), m_FirstMsgID (0), m_IsAcknowledged (false),
m_NumTags (numTags), m_NextTag (-1), m_SessionTags (0)
m_NumTags (numTags), m_NextTag (-1), m_SessionTags (0),
m_ElGamalEncryption (m_Destination.GetEncryptionPublicKey (), true)
{
// create new session tags and session key
m_Rnd.GenerateBlock (m_SessionKey, 32);
@ -56,7 +56,7 @@ namespace garlic
m_Rnd.GenerateBlock (elGamal.preIV, 32); // Pre-IV
uint8_t iv[32]; // IV is first 16 bytes
CryptoPP::SHA256().CalculateDigest(iv, elGamal.preIV, 32);
i2p::crypto::ElGamalEncrypt (m_Destination->GetEncryptionPublicKey (), (uint8_t *)&elGamal, sizeof(elGamal), buf, true);
m_ElGamalEncryption.Encrypt ((uint8_t *)&elGamal, sizeof(elGamal), buf);
m_Encryption.SetKeyWithIV (m_SessionKey, 32, iv);
buf += 514;
len += 514;
@ -140,7 +140,7 @@ namespace garlic
}
if (msg) // clove message ifself if presented
{
size += CreateGarlicClove (payload + size, msg, m_Destination->IsDestination ());
size += CreateGarlicClove (payload + size, msg, m_Destination.IsDestination ());
(*numCloves)++;
}
@ -161,7 +161,7 @@ namespace garlic
{
buf[size] = eGarlicDeliveryTypeDestination << 5;// delivery instructions flag destination
size++;
memcpy (buf + size, m_Destination->GetIdentHash (), 32);
memcpy (buf + size, m_Destination.GetIdentHash (), 32);
size += 32;
}
else
@ -230,33 +230,31 @@ namespace garlic
m_Sessions.clear ();
}
I2NPMessage * GarlicRouting::WrapSingleMessage (const i2p::data::RoutingDestination * destination, I2NPMessage * msg)
I2NPMessage * GarlicRouting::WrapSingleMessage (const i2p::data::RoutingDestination& destination, I2NPMessage * msg)
{
if (!destination) return nullptr;
auto it = m_Sessions.find (destination->GetIdentHash ());
auto it = m_Sessions.find (destination.GetIdentHash ());
if (it != m_Sessions.end ())
{
delete it->second;
m_Sessions.erase (it);
}
GarlicRoutingSession * session = new GarlicRoutingSession (destination, 0); // not follow-on messages expected
m_Sessions[destination->GetIdentHash ()] = session;
m_Sessions[destination.GetIdentHash ()] = session;
return session->WrapSingleMessage (msg, nullptr);
}
I2NPMessage * GarlicRouting::WrapMessage (const i2p::data::RoutingDestination * destination,
I2NPMessage * GarlicRouting::WrapMessage (const i2p::data::RoutingDestination& destination,
I2NPMessage * msg, I2NPMessage * leaseSet)
{
if (!destination) return nullptr;
auto it = m_Sessions.find (destination->GetIdentHash ());
auto it = m_Sessions.find (destination.GetIdentHash ());
GarlicRoutingSession * session = nullptr;
if (it != m_Sessions.end ())
session = it->second;
if (!session)
{
session = new GarlicRoutingSession (destination, 4); // TODO: change it later
m_Sessions[destination->GetIdentHash ()] = session;
m_Sessions[destination.GetIdentHash ()] = session;
}
I2NPMessage * ret = session->WrapSingleMessage (msg, leaseSet);