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Updated to new client build

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This commit is contained in:
tomrus88 2009-03-04 14:58:11 +03:00
parent 2197da6407
commit e6a66cdc54
18 changed files with 360 additions and 188 deletions
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71
src/shared/Auth/AuthCrypt.cpp
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@ -24,57 +24,46 @@ AuthCrypt::AuthCrypt()
_initialized = false;
}
void AuthCrypt::Init()
AuthCrypt::~AuthCrypt()
{
_send_i = _send_j = _recv_i = _recv_j = 0;
}
void AuthCrypt::Init(BigNumber *K)
{
uint8 recvSeed[SEED_KEY_SIZE] = { 0x22, 0xBE, 0xE5, 0xCF, 0xBB, 0x07, 0x64, 0xD9, 0x00, 0x45, 0x1B, 0xD0, 0x24, 0xB8, 0xD5, 0x45 };
HmacHash recvHash(SEED_KEY_SIZE, (uint8*)recvSeed);
recvHash.UpdateBigNumber(K);
recvHash.Finalize();
_recvCrypt.Init(SHA_DIGEST_LENGTH, recvHash.GetDigest());
uint8 sendSeed[SEED_KEY_SIZE] = { 0xF4, 0x66, 0x31, 0x59, 0xFC, 0x83, 0x6E, 0x31, 0x31, 0x02, 0x51, 0xD5, 0x44, 0x31, 0x67, 0x98 };
HmacHash sendHash(SEED_KEY_SIZE, (uint8*)sendSeed);
sendHash.UpdateBigNumber(K);
sendHash.Finalize();
_sendCrypt.Init(SHA_DIGEST_LENGTH, sendHash.GetDigest());
uint8 emptyBuf[1000];
memset(emptyBuf, 0, 1000);
_sendCrypt.Process(1000, (uint8*)emptyBuf, (uint8*)emptyBuf);
_recvCrypt.Process(1000, (uint8*)emptyBuf, (uint8*)emptyBuf);
_initialized = true;
}
void AuthCrypt::DecryptRecv(uint8 *data, size_t len)
{
if (!_initialized) return;
if (len < CRYPTED_RECV_LEN) return;
if (!_initialized)
return;
for (size_t t = 0; t < CRYPTED_RECV_LEN; t++)
{
_recv_i %= _key.size();
uint8 x = (data[t] - _recv_j) ^ _key[_recv_i];
++_recv_i;
_recv_j = data[t];
data[t] = x;
}
_recvCrypt.Process(len, data, data);
}
void AuthCrypt::EncryptSend(uint8 *data, size_t len)
{
if (!_initialized) return;
if (!_initialized)
return;
for (size_t t = 0; t < len; t++)
{
_send_i %= _key.size();
uint8 x = (data[t] ^ _key[_send_i]) + _send_j;
++_send_i;
data[t] = _send_j = x;
}
}
void AuthCrypt::SetKey(BigNumber *bn)
{
uint8 *key = new uint8[SHA_DIGEST_LENGTH];
GenerateKey(key, bn);
_key.resize(SHA_DIGEST_LENGTH);
std::copy(key, key + SHA_DIGEST_LENGTH, _key.begin());
delete[] key;
}
AuthCrypt::~AuthCrypt()
{
}
void AuthCrypt::GenerateKey(uint8 *key, BigNumber *bn)
{
HmacHash hash;
hash.UpdateBigNumber(bn);
hash.Finalize();
memcpy(key, hash.GetDigest(), SHA_DIGEST_LENGTH);
_sendCrypt.Process(len, data, data);
}