Method of protecting computer software from unauthorized...

Details Method of protecting computer software from unauthorized... Method of protecting computer software from unauthorized...

G - Physics

06

F

G06F 12/14 (2006.01) G06F 1/00 (2006.01) G06F 9/44 (2006.01) G06F 21/00 (2006.01)

Patent

CA 2080531

A method of protecting computer software is provided by storing a first key in a plug-in hardware device, storing an algorithm for processing a purality of keys including the first key in software to be protected, loading the software containing the algorithm in the computer and plugging in a hardware device in a communications port of the computer. A second key, external to the software, to be protected which bears a relationship to the first key by the algorithm is loaded into the computer where processing takes place of the first and second keys in the algorithm for deriving a control key, if present, for the continued processing of the software being protected. The step of loading the second key is performed using a computer keyboard, any input/output port, a hard disk file or any other method of entry in the computer. Additional keys external to the software which bear a relationship to the first and second keys configured in the algorithm may be provided.

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