public void RekeyAsync(TLEncryptedChatBase chat, Action <TLLong> callback)
{
//GetGA()
}
public SecretChatDebugViewModel(TLEncryptedChatBase chat, System.Action rekeyAction)
{
Chat = chat;
_rekeyAction = rekeyAction;
}
private WriteableBitmap CreateKeyBitmap(TLEncryptedChatBase chat)
{
var key = chat.OriginalKey ?? chat.Key;
if (key == null)
{
return(null);
}
var data = key.Data;
var chat17 = chat as TLEncryptedChat17;
var extended = chat17 != null &&
chat17.Layer.Value >= Constants.MinSecretChatWithExtendedKeyVisualizationLayer &&
chat17.ExtendedKey != null;
var count = extended ? 12 : 8;
var length = extended ? 25 : 40;
var bitmap = new WriteableBitmap(count * length, count * length);
var hash = Telegram.Api.Helpers.Utils.ComputeSHA1(data);
var colors = new [] {
0xffffffff,
0xffd5e6f3,
0xff2d5775,
0xff2f99c9
};
if (extended)
{
var extendedData = chat17.ExtendedKey.Data;
for (var i = 0; i < 64; i++)
{
var index = (hash[i / 4] >> (2 * (i % 4))) & 0x3;
var x = i % 12;
var y = i / 12;
DrawFilledRectangle(bitmap, x * length, y * length, (x + 1) * length, (y + 1) * length, (int)colors[index]);
}
var hash256 = Telegram.Api.Helpers.Utils.ComputeSHA256(extendedData);
for (var i = 0; i < 80; i++)
{
var index = (hash256[i / 4] >> (2 * (i % 4))) & 0x3;
var local = i + 64;
var x = local % 12;
var y = local / 12;
DrawFilledRectangle(bitmap, x * length, y * length, (x + 1) * length, (y + 1) * length, (int)colors[index]);
}
}
else
{
for (int i = 0; i < 64; i++)
{
int index = (hash[i / 4] >> (2 * (i % 4))) & 0x3;
var x = i % 8;
var y = i / 8;
DrawFilledRectangle(bitmap, x * length, y * length, (x + 1) * length, (y + 1) * length, (int)colors[index]);
}
}
return(bitmap);
}
