Aufsatz in einer Fachzeitschrift
Extended visual cryptography schemes
Details zur Publikation
Autor(inn)en: | Klein, A. |
Publikationsjahr: | 2007 |
Zeitschrift: | Information and Computation |
Seitenbereich: | 716-732 |
Jahrgang/Band : | 205 |
Erste Seite: | 716 |
Letzte Seite: | 732 |
ISSN: | 0890-5401 |
Zusammenfassung, Abstract
Visual cryptography schemes have been introduced in 1994 by Naor and Shamir. Their idea was to encode a secret image into n shadow images and to give exactly one such shadow image to each member of a group P of n persons. Whereas most work in recent years has been done concerning the problem of qualified and forbidden subsets of P or the question of contrast optimizing, in this paper we study extended visual cryptography schemes, i.e., shared secret systems where any subset of' P shares its own secret. (c) 2007 Published by Elsevier Inc.
Visual cryptography schemes have been introduced in 1994 by Naor and Shamir. Their idea was to encode a secret image into n shadow images and to give exactly one such shadow image to each member of a group P of n persons. Whereas most work in recent years has been done concerning the problem of qualified and forbidden subsets of P or the question of contrast optimizing, in this paper we study extended visual cryptography schemes, i.e., shared secret systems where any subset of' P shares its own secret. (c) 2007 Published by Elsevier Inc.
