This is a fake auth server for the game 'Vintage Story'.
Using public key:
<RSAKeyValue><Modulus>s9/kwnOq8bfUr8NfN7LN6y+e+crm+Ik2qkYqTt8LZ23j1o7LnBtIjWPRehEXguPn9tqNZ/XrBKGRtrUqBP3FpiqI9/7EfKvBUO+H3Q0imdnL8eYF70CGQInx2HQCAEDPiLPphmsEXxjLWVbVNbdrPz2GNMm63mX2SNq9VcT9AZNpmmpOR1YOTHZ4SVnZbNqZ2Y0P6b3g3yR/cm6lxJxHYKCGtC+nmBWWaHhUMn87bNXhPHu4MPuPNn147dS6iEJKEECJLjXKmXc71J4BD1giw/TmYPkkIM+Y509M/1/RNDSIEn4pw4WWBvtg2MXzPyGvimzuCjvJUX4ljap239F2pw==</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>
To connect your game to it, download the patcher script,
which requires xxd and other common Unix shell utilities,
and run it against the file VintagestoryLib.dll from the game files.
Enter any username you like (without invalid characters e.g. spaces) as your email
address, and leave the password field blank.