Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

video

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

sound

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Version

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View:

381
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Download:

116
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Cites:

2

Information Journal Paper

Title

ON THE PIXEL EXPANSION OF HYPERGRAPH ACCESS STRUCTURES IN VISUAL CRYPTOGRAPHY SCHEMES

Pages

  45-54

Abstract

 In a VISUAL CRYPTOGRAPHY scheme, a secret image is encoded inton shares, in the form of transparencies. The shares are then distributed to n participants. Qualified subsets of participants can recover the secret image by superimposing their transparencies, but non-qualified subsets of participants have no information about the secret image. PIXEL EXPANSION, which represents the number of subpixels in the encoding of the secret image, should be as small as possible. Optimal schemes are those that have the minimum PIXEL EXPANSION. In this paper we study the PIXEL EXPANSION of HYPERGRAPH access structures and introduce a number of upper bounds on the PIXEL EXPANSION of special kinds of access structures. Also we demonstrate the minimum PIXEL EXPANSION of induced matching HYPERGRAPH is sharp when every qualified subset is exactly one edge with odd size. Furthermore we explain that the minimum PIXEL EXPANSION of every graph access structure Pn is exactly [n+1/2]. It indicates the lower bound mentioned in [4] is sharp.

Cites

References

  • No record.

    • Cite

    APA: Copy

    CHERAGHI, ABBAS. (2010). ON THE PIXEL EXPANSION OF HYPERGRAPH ACCESS STRUCTURES IN VISUAL CRYPTOGRAPHY SCHEMES. IRANIAN JOURNAL OF MATHEMATICAL SCIENCES AND INFORMATICS (IJMSI), 5(2), 45-54. SID. https://sid.ir/paper/310312/en

    Vancouver: Copy

    CHERAGHI ABBAS. ON THE PIXEL EXPANSION OF HYPERGRAPH ACCESS STRUCTURES IN VISUAL CRYPTOGRAPHY SCHEMES. IRANIAN JOURNAL OF MATHEMATICAL SCIENCES AND INFORMATICS (IJMSI)[Internet]. 2010;5(2):45-54. Available from: https://sid.ir/paper/310312/en

    IEEE: Copy

    ABBAS CHERAGHI, “ON THE PIXEL EXPANSION OF HYPERGRAPH ACCESS STRUCTURES IN VISUAL CRYPTOGRAPHY SCHEMES,” IRANIAN JOURNAL OF MATHEMATICAL SCIENCES AND INFORMATICS (IJMSI), vol. 5, no. 2, pp. 45–54, 2010, [Online]. Available: https://sid.ir/paper/310312/en

    Related Journal Papers

  • No record.

    • Related Seminar Papers

  • No record.

    • Related Plans

  • No record.

    • Recommended Workshops





    Move to top