发明名称 METHOD FOR GENERATING AND VERIFYING AN ORIGINALITY CHARACTERISTIC OF A DOCUMENT
摘要 <p>The invention relates to a method for the electronically controlled generation of a graphic signature (3) for a document (1, 2), and to a method for the electronically controlled verification of the originality of a document (1, 2) in a data processing system (5). A data record characteristic of an electronic document (1) stored in the memory (6) is determined from said document, and a graphic signature (3) associated with the document (1) is created on the basis of the characteristic data record. The invention also relates to a data processing system, and to a computer program for carrying out the method.</p>
申请公布号 EP1631873(A1) 申请公布日期 2006.03.08
申请号 EP20040736368 申请日期 2004.06.09
申请人 TRODAT GMBH 发明人 SIEBERER-KEFER, WALTER
分类号 G06F21/62;G06F21/64;G07D7/00;G07F7/10;H04N1/00;H04N1/32;(IPC1-7):G06F1/00 主分类号 G06F21/62
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