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use remote router indentity

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orignal 2014-10-24 13:04:14 -04:00
parent 39bdfa8791
commit f81a122223
2 changed files with 7 additions and 12 deletions
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18
NTCPSession.cpp
View File

@ -3,7 +3,6 @@
#include "I2PEndian.h"
#include <boost/bind.hpp>
#include <cryptopp/dh.h>
#include <cryptopp/dsa.h>
#include "base64.h"
#include "Log.h"
#include "Timestamp.h"
@ -120,11 +119,12 @@ namespace transport
{
if (!m_DHKeysPair)
m_DHKeysPair = transports.GetNextDHKeysPair ();
m_RemoteRouterIdentity = m_RemoteRouterInfo. GetRouterIdentity ();
// send Phase1
const uint8_t * x = m_DHKeysPair->publicKey;
memcpy (m_Establisher->phase1.pubKey, x, 256);
CryptoPP::SHA256().CalculateDigest(m_Establisher->phase1.HXxorHI, x, 256);
const uint8_t * ident = m_RemoteRouterInfo.GetIdentHash ();
const uint8_t * ident = m_RemoteRouterIdentity.GetIdentHash ();
for (int i = 0; i < 32; i++)
m_Establisher->phase1.HXxorHI[i] ^= ident[i];
@ -322,7 +322,7 @@ namespace transport
{
LogPrint ("Phase 3 received: ", bytes_transferred);
m_Decryption.Decrypt ((uint8_t *)&m_Establisher->phase3, sizeof(NTCPPhase3), (uint8_t *)&m_Establisher->phase3);
m_RemoteRouterInfo.SetRouterIdentity (m_Establisher->phase3.ident);
m_RemoteRouterIdentity = m_Establisher->phase3.ident;
SignedData s;
memcpy (s.x, m_Establisher->phase1.pubKey, 256);
@ -331,10 +331,7 @@ namespace transport
s.tsA = m_Establisher->phase3.timestamp;
s.tsB = tsB;
CryptoPP::DSA::PublicKey pubKey;
pubKey.Initialize (dsap, dsaq, dsag, CryptoPP::Integer (m_RemoteRouterInfo.GetRouterIdentity ().signingKey, 128));
CryptoPP::DSA::Verifier verifier (pubKey);
if (!verifier.VerifyMessage ((uint8_t *)&s, sizeof(s), m_Establisher->phase3.signature, 40))
if (!m_RemoteRouterIdentity.Verify ((uint8_t *)&s, sizeof(s), m_Establisher->phase3.signature))
{
LogPrint ("signature verification failed");
Terminate ();
@ -350,7 +347,7 @@ namespace transport
SignedData s;
memcpy (s.x, m_Establisher->phase1.pubKey, 256);
memcpy (s.y, m_Establisher->phase2.pubKey, 256);
memcpy (s.ident, m_RemoteRouterInfo.GetIdentHash (), 32);
memcpy (s.ident, m_RemoteRouterIdentity.GetIdentHash (), 32);
s.tsA = m_Establisher->phase3.timestamp;
s.tsB = tsB;
i2p::context.Sign ((uint8_t *)&s, sizeof (s), m_Establisher->phase4.signature);
@ -402,10 +399,7 @@ namespace transport
s.tsA = tsA;
s.tsB = m_Establisher->phase2.encrypted.timestamp;
CryptoPP::DSA::PublicKey pubKey;
pubKey.Initialize (dsap, dsaq, dsag, CryptoPP::Integer (m_RemoteRouterInfo.GetRouterIdentity ().signingKey, 128));
CryptoPP::DSA::Verifier verifier (pubKey);
if (!verifier.VerifyMessage ((uint8_t *)&s, sizeof(s), m_Establisher->phase4.signature, 40))
if (!m_RemoteRouterIdentity.Verify ((uint8_t *)&s, sizeof(s), m_Establisher->phase4.signature))
{
LogPrint ("signature verification failed");
Terminate ();

1
NTCPSession.h
View File

@ -135,6 +135,7 @@ namespace transport
CryptoPP::Adler32 m_Adler;
i2p::data::RouterInfo& m_RemoteRouterInfo;
i2p::data::IdentityEx m_RemoteRouterIdentity;
struct Establisher
{