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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/97629

    題名: New Design for Friendly Visual Secret Sharing
    作者: 侯永昌;Liao, H.Y.
    貢獻者: 淡江大學資訊管理學系
    關鍵詞: Secret sharing;Visual cryptography;Friendly visual secret sharing
    日期: 2014-04
    上傳時間: 2014-04-09 11:47:19 (UTC+8)
    出版者: Taipei: Kownledge Association of Taiwan
    摘要: Different from conventional cryptography, visual cryptography is an image cryptographic technique proposed by Naor and Shamir. It encodes a secret image into n pieces of noise-like shares. When k or more than k pieces of shares are gathered from participants, human visual system will disclose the secret image on the stacked image easily. Neither complicated mathematical computation nor any knowledge of cryptography is needed are the main advantages of visual secret sharing. In this paper, we propose a new design for friendly visual secret sharing. The secret will be hiding into two meaningful shares. The black-appearing ratio in each block of the shares for the corresponding black (rep. white) secret pixel is the same. Therefore, it is impossible for one to disclose any information related to the secret image on each share, which achieves the goal of improving security. When shares are superimposed, the contours of the cover image will disappear on the stacked image, which will only reveal the secret image. According to our experimental results, the contrasts of the shares or the stacked images are good which can reveal the contents of the cover images and the secret image clearly.
    關聯: Proceedings of 2014 e-CASE & e-Tech International Conference, pp. 1629-1640
    顯示於類別:[資訊管理學系暨研究所] 會議論文





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