Device and method for providing security for a computer software program

A method for generating security codes that may be utilized to provide security for a software program executing in a computer, wherein said computer includes a game port, the method comprising:

• generating at least one sequence of resistance values, wherein said resistance values represent a security code;
• and
• inputting said at least one sequence of resistance values into the game port of said computer.

A computer system comprising:

• an analog input port of a computer;
• and
• security circuitry for generating security codes coupled to said analog input port, wherein said security circuitry generates at least one sequence of analog data signals, and wherein said at least one sequence of analog data signals are input to said analog input port, said data signals representing a security code.

A computer system comprising:

• an analog input port of a computer;
• and
• means for generating security codes for providing security to a software program on a computer, wherein said means for generating security codes generates at least one sequence of analog data signals, said analog data signals representing a security code, and wherein said at least one sequence of analog data signals is fed to said analog input port.

A security adapter for generating security codes, said security adapter comprising:

• a means for coupling said security adapter to an analog input port of a computer;
• and
• security circuitry for generating at least one sequence of analog data signals on said analog input port, wherein said analog data signals represent a security code.