| 摘要 |
PURPOSE: A system for appending/recovering an electronic signature and document contents using a matrix code in an on/off line environment and an appending/recovering method thereof are provided to discriminate a forgery by encoding and compressing/storing document contents and an electronic signature on an additional matrix code, appending the matrix code at the lower end of the original document contents, thereby comparing the original document contents with contents stored in the matrix code when the matrix code is decoded. CONSTITUTION: An encoding terminal(A) converts document contents and an electronic signature into a matrix code and appends the matrix code to the document. A decoding terminal(B) scans a document(10) having the matrix code, extracts the matrix code, executes a recovery, and discriminates between recovery data and the original document. A printer(P) is mounted in the decoding terminal(B) and outputs a document having the matrix code. A scanner(S) is mounted in the decoding terminal(B) and scans a document including the matrix code. The matrix code which encoded with the original document and the electronic signature is located at the lower end of the original data. When the matrix code is decoded, a forgery of the original document is discriminated.
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