public static void CalculateEncryption(ClientVersion version)
{
if (version == ClientVersion.CV_200X)
{
KEY_1 = 0x2D13A5FC;
KEY_2 = 0x2D13A5FD;
KEY_3 = 0xA39D527F;
Type = ENCRYPTION_TYPE.BLOWFISH__2_0_3;
}
else
{
int a = ((int)version >> 24) & 0xFF;
int b = ((int)version >> 16) & 0xFF;
int c = ((int)version >> 8) & 0xFF;
int temp = ((((a << 9) | b) << 10) | c) ^ ((c * c) << 5);
KEY_2 = (uint)((temp << 4) ^ (b * b) ^ (b * 0x0B000000) ^ (c * 0x380000) ^ 0x2C13A5FD);
temp = (((((a << 9) | c) << 10) | b) * 8) ^ (c * c * 0x0c00);
KEY_3 = (uint)(temp ^ (b * b) ^ (b * 0x6800000) ^ (c * 0x1c0000) ^ 0x0A31D527F);
KEY_1 = KEY_2 - 1;
if (version < (ClientVersion)(((1 & 0xFF) << 24) |
((25 & 0xFF) << 16) |
((35 & 0xFF) << 8) |
(0 & 0xFF)))
{
Type = ENCRYPTION_TYPE.OLD_BFISH;
}
else if (version == (ClientVersion)(((1 & 0xFF) << 24) |
((25 & 0xFF) << 16) |
((36 & 0xFF) << 8) |
(0 & 0xFF)))
{
Type = ENCRYPTION_TYPE.BLOWFISH__1_25_36;
}
else if (version <= ClientVersion.CV_200)
{
Type = ENCRYPTION_TYPE.BLOWFISH;
}
else if (version <= (ClientVersion)(((2 & 0xFF) << 24) |
((0 & 0xFF) << 16) |
((3 & 0xFF) << 8) |
(0 & 0xFF)))
{
Type = ENCRYPTION_TYPE.BLOWFISH__2_0_3;
}
else
{
Type = ENCRYPTION_TYPE.TWOFISH_MD5;
}
}
}
public static void Initialize(bool is_login, uint seed, ENCRYPTION_TYPE encryption)
{
if (encryption == ENCRYPTION_TYPE.NONE)
return;
if (is_login)
{
_loginCrypt.Initialize(seed, KEY_1, KEY_2, KEY_3);
}
else
{
if (encryption >= ENCRYPTION_TYPE.OLD_BFISH && encryption < ENCRYPTION_TYPE.TWOFISH_MD5)
{
_blowfishEncryption.Initialize();
}
if (encryption == ENCRYPTION_TYPE.BLOWFISH__2_0_3 || encryption == ENCRYPTION_TYPE.TWOFISH_MD5)
{
_twoFishBehaviour.Initialize(seed, encryption == ENCRYPTION_TYPE.TWOFISH_MD5);
}
}
}
