1. Technical field to which the invention described in the claims belongs;An Electronic Document Authentication Method Using Matrix Algorithm in Electronic Document Exchange System.;2. Technical Challenges to be Solved by the Invention;It is intended to provide an authentication method for preventing unauthorized modification or forgery of international standard electronic documents distributed on an electronic document exchange system.;3. The point of the solution of the invention;By replacing the electronic document with a square logic structure consisting of a set of records having rows and columns, calculating a certification value by applying a common symmetric authentication algorithm to the rows and columns of the electronic document, Since the two secret keys are computed concurrently in rows and columns with different weights, it is difficult to invert the resultant values, thereby improving the reliability of the authentication.;4. Important Uses of the Invention;Used in electronic document exchange system.
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