研究成果

国際会議

  • Weakly Secure Visual Secret Sharing Schemes
    著者
    M. Iwamoto
    会議名
    ISITA 2008
    ページ
    42–47
    発行年
    2021
    発表日
    Dec. 7–10, 2008
    Abstract

    We introduce a visual secret sharing (VSS) scheme with a new security condition, called a weakly secure VSS scheme, which is not unconditionally secure in general, but is designed to be secure for human eyesight. It is shown in this paper that the weakly secure VSS scheme is equivalent to the unconditional one for black-white binary secret images although they are different for color secret images. This fact implies that, at the sacrifice of security, the clearer color images can be reproduced by the weakly secure VSS schemes compared with the unconditional ones. Furthermore, some constructions of weakly secure VSS schemes are presented.