Master of Science thesis Fighting Spam

throw new Exception("Error");
registered = true;
}
catch(Exception e)
{
Debugger.debug(getClass(), 1, "Certificate could not be loaded or safe
does not exist. Probably first program launch.");
registered = false;
}
//Load the blacklist
try
{
blacklist = (Blacklist) FileHandler.readObject(new
File(Config.blacklistFilePath));
Debugger.debug(getClass(), 1, "Loaded blacklist succesfully.");
}
catch(Exception e)
{
Debugger.debug(getClass(), 1, "Blacklist could not be loaded. Creating
new.");
blacklist = new Blacklist();
}
//Load the whitelist
try
{
whitelist = (Whitelist) FileHandler.readObject(new
File(Config.whitelistFilePath));
Debugger.debug(getClass(), 1, "Loaded whitelist succesfully.");
}
catch(Exception e)
{
Debugger.debug(getClass(), 1, "Whitelist could not be loaded. Creating
new.");
whitelist = new Whitelist();
}
safe = new SafeHandler();
currencyExchangeClient = new CurrencyExchangeClient();
gui.init(this);
if(registered)
{
byte[] testbytes =
{2, 99, 7, 45, 56, 7, 7, 89, 98, 7, 78, 4, 12, 3, 4, 4, 23, 22, 3, 4,
45, 45, 32};
boolean passed = (Cryptotools.verify((RSAPublicKey)
getCertificate().getPublicKey(),
Cryptotools.sign(getPrivateKey(),
testbytes), testbytes));
Debugger.debug(getClass(), 1,
"Test of the received certificate with the privatkey..." +
(passed ? "passed" : "failed"));
if( ! passed)
registered = false;
}
if(!registered)
{
Debugger.debug(getClass(), 1, "Starting registration procedure...");
gui.showRegistrationDialog();
}
else
gui.show();
}
catch(Throwable e)
201