mirror of
https://github.com/PurpleI2P/i2pd
synced 2024-11-13 01:20:22 +03:00
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#include <cryptopp/dsa.h>
|
|
#include "CryptoConst.h"
|
|
#include "Log.h"
|
|
#include "LeaseSet.h"
|
|
#include "I2PEndian.h"
|
|
|
|
namespace i2p
|
|
{
|
|
namespace data
|
|
{
|
|
|
|
LeaseSet::LeaseSet (const uint8_t * buf, int len)
|
|
{
|
|
#pragma pack(1)
|
|
struct H
|
|
{
|
|
Identity destination;
|
|
uint8_t encryptionKey[256];
|
|
uint8_t signingKey[128];
|
|
uint8_t num;
|
|
};
|
|
#pragma pack ()
|
|
|
|
const H * header = (const H *)buf;
|
|
m_Identity = header->destination;
|
|
m_IdentHash = CalculateIdentHash (m_Identity);
|
|
memcpy (m_EncryptionKey, header->encryptionKey, 256);
|
|
LogPrint ("LeaseSet num=", (int)header->num);
|
|
|
|
const uint8_t * leases = buf + sizeof (H);
|
|
for (int i = 0; i < header->num; i++)
|
|
{
|
|
Lease lease = *(Lease *)leases;
|
|
lease.tunnelID = be32toh (lease.tunnelID);
|
|
m_Leases.push_back (lease);
|
|
leases += sizeof (Lease);
|
|
}
|
|
|
|
// verify
|
|
CryptoPP::DSA::PublicKey pubKey;
|
|
pubKey.Initialize (i2p::crypto::dsap, i2p::crypto::dsaq, i2p::crypto::dsag,
|
|
CryptoPP::Integer (m_Identity.signingKey, 128));
|
|
CryptoPP::DSA::Verifier verifier (pubKey);
|
|
if (!verifier.VerifyMessage (buf, leases - buf, leases, 40))
|
|
LogPrint ("LeaseSet verification failed");
|
|
}
|
|
}
|
|
}
|