abstract

A novel approach for detection of cheating in visualcryptography based on steganography for hidingdigital signature of the secret image is proposed. The proposed technique hides the verification bits of the signature in the different shares of the participants.For hiding binary “0”, no flipping of the subpixel is done in the block of the share, but change is done for hiding binary “1” by flipping a white (black) subpixel in one of the blocks of black (white) share The hidden signature can be recovered in the presence of all shares and verified by comparing with there constructed digital signature in case of doubt.

躲避偵測的一種新方法是根據隱藏的秘密圖像的數位簽章的隱藏學的視覺密碼時被提及。
這個被提及的技術是在簽章時，在不同的參與者分享中隱藏正確的位元。
當隱藏位元0時，子像素在分享的區塊中不用翻轉，那當隱藏位元1時，子像素是白色的就要翻轉成黑色的，黑色的就要翻轉成白色的。
當如果發生懷疑時，這個簽章可以在全部的分享中恢復，或者是對照建構數位簽章的證實。