Security system

Details Security system Security system

G - Physics

09

C

354/243

G09C 5/00 (2006.01)

Patent

CA 1232080

ABSTRACT OF THE DISCLOSURE The invention provides security systems for pro- tection of computer software against unauthorized access such as to inhibit the running of computer programs whilst still permitting the software to be copied and in the pro- duction of encoded documents, lables and tags which cannot be read but again, can be copied. The present invention provides a system to inhibit unauthorized access to data comprising output means to transpose two or more components of an element of said data in accordance with a preselected algorithm, and thus produce an encoded element, and decoding means to rearrange said encoded element, thereby recreating the element of said data, the output means comprising at least one microprocessor programmed with said algorithm and means for displaying the encoded element in visible form, and the decoding means comprising at least one optical element capable of rearranging said encoded element.

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