发明名称 Tamper-resistant visual encryption method and device
摘要 A method of visually encrypting a graphical message ( 100 ), in which a first share ( 110 ) is produced based on the graphic message ( 100 ) and a key sequence, the method comprising inserting a filler in a monochromatic area of the graphical message ( 100 ) before producing the first share ( 110 ). The filler may represent a regularly spaced grid, a pseudo-random pattern, a predetermined graphical image or, in case of a color message, a colorful background. Also a device ( 500 ) and a computer program product arranged for carrying out the method.
申请公布号 US2005180569(A1) 申请公布日期 2005.08.18
申请号 US20040514613 申请日期 2004.11.16
申请人 KONINKLIJKE PHILIPS ELECTRONICS N.V. 发明人 KEVENAAR THOMAS ANDREAS M.;SCHRIJEN GEERT J.;TUYLS PIM T.
分类号 G06T1/00;G09C5/00;H04N1/387;(IPC1-7):H04N7/167 主分类号 G06T1/00
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