public ChatUserInfo()
{
NameSpaceID = 0;
UseEncryption = false;
IsQuietMode = false;
ClientCTX = new GSPeerChatCTX();
ServerCTX = new GSPeerChatCTX();
JoinedChannels = new List <ChatChannelBase>();
}
/// <summary>
/// Prepare the key
/// </summary>
/// <param name="ctx"></param>
/// <param name="chall"></param>
/// <param name="gamekey"></param>
public static void Init(GSPeerChatCTX ctx, string challengeKey, string secretKey)
{
byte[] challengeBytes = Encoding.ASCII.GetBytes(challengeKey);
byte[] secretKeyBytes = Encoding.ASCII.GetBytes(secretKey);
ctx.GSPeerChat1 = 0;
ctx.GSPeerChat2 = 0;
int secretKeyIndex = 0;
for (int i = 0; i < challengeBytes.Length; i++, secretKeyIndex++)
{
if (secretKeyIndex >= secretKeyBytes.Length)
{
secretKeyIndex = 0;
}
challengeBytes[i] ^= secretKeyBytes[secretKeyIndex];
}
byte index1 = 255;
for (int i = 0; i < 256; i++, index1--)
{
ctx.GSPeerChatCrypt[i] = index1;
}
index1 = 0;
for (int i = 0, index2 = 0; i < ctx.GSPeerChatCrypt.Length; i++, index1++)
{
if (index1 >= challengeBytes.Length)
{
index1 = 0;
}
index2 = (byte)((challengeBytes[index1] + ctx.GSPeerChatCrypt[i] + index2) % 256);
byte t = ctx.GSPeerChatCrypt[i];
ctx.GSPeerChatCrypt[i] = ctx.GSPeerChatCrypt[index2];
ctx.GSPeerChatCrypt[index2] = t;
}
}
/// <summary>
/// Crypt or decrypt the data
/// </summary>
/// <param name="ctx"></param>
/// <param name=""></param>
/// <param name="data"></param>
public static void Handle(GSPeerChatCTX ctx, ref byte[] data, long size)
{
byte num1 = ctx.GSPeerChat1;
byte num2 = ctx.GSPeerChat2;
byte t;
int datapos = 0;
while ((size--) > 0)
{
num1 = (byte)((num1 + 1) % 256);
num2 = (byte)((ctx.GSPeerChatCrypt[num1] + num2) % 256);
t = ctx.GSPeerChatCrypt[num1];
ctx.GSPeerChatCrypt[num1] = ctx.GSPeerChatCrypt[num2];
ctx.GSPeerChatCrypt[num2] = t;
t = (byte)((ctx.GSPeerChatCrypt[num2] + ctx.GSPeerChatCrypt[num1]) % 256);
data[datapos++] ^= ctx.GSPeerChatCrypt[t];
}
ctx.GSPeerChat1 = num1;
ctx.GSPeerChat2 = num2;
}
public ChatUserInfo()
{
ClientCTX = new GSPeerChatCTX();
ServerCTX = new GSPeerChatCTX();
JoinedChannels = new ConcurrentBag <Channel.ChatChannel>();
}
public ChatUserInfo SetServerCTX(GSPeerChatCTX ctx)
{
ServerCTX = ctx;
return(this);
}
public ChatUserInfo SetClientCTX(GSPeerChatCTX ctx)
{
ClientCTX = ctx;
return(this);
}
