: Package Free

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## Package Free

Class Summary
AuthKey | AuthKey calculates and communicates the FREE authorisation key which helps to secure the system against attacks through reverse engineering the client program.
ClientProtocol | Processes data from `TCPClient` to formulate the correct resonses.
Comms | Comms is the key class for launching communications with servers.
CryptFrame | Asks user to enter database encryption password
DBase | DBase creates databases, tables and interacts with these through JDBC and SQL.
DBFrame | Simple database console for executing SQL queries.
Intro | Asks user to choose mode to run RTServer in.
RTFrame | The main RTServer status screen.
RTServer | This is the main class which launches the `RTServer` program, splash screen and preloads some objects.
ScreenAppender | Implements the `org.apache.log4j.Appender` interface to provide screen display of logging output.
SecureAppender | Implements the `org.apache.log4j.Appender` interface to provide a secure addition to GNU.FREE logging. This class creates a chain of Message Digests, so that the every log entry creates a digest of itself with the previous entry.
ServerProtocol | Processes the Strings passed to it by `TCPServer` but throws all errors back up to `TCPServer` which can better handle problems by elegantly closing connections.
TCPClient | TCPClient allows `RTServer` to connect as a client to a totaller server when the ballot has closed.
TCPServer | The TCPServer Class opens a socket to listen for client connections which, when received, are spun out into new threads to keep the listening socket free to accept new clients.
TimeOutThread | A simple thread which waits a certain time in milliseconds defined by `RTServer.timeOutTime` before closing communications.

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