The way to use a non-sepuential funtional image and to cipher it in the preservation of the public security and remote control system by the Hardware-Lock

摘要

PURPOSE: A method for using non-sequential function values and coding the function values are provided to previously prevent external hacking by coding non-sequential combined function values in exchanging the function values between client computers and a server computer. CONSTITUTION: First, a function(A) is generated from a processor of a server computer after client computers access to the server computer. Then, the function(A) is transferred to an encoder to be coded as a signal(A') and then be transferred to the client computer. Next, the coded signal(A') is decoded to the function(A) by a decoder of the client computer to be transferred to the processor of the client computer and then be converted into another function value f(A). Then, the function value f(A) is coded a signal f(A') to be transmitted to the server computer. Next, the signal f(A') is decoded to the original value f(A), and the processor confirms the value to generate a next function(B).