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» On the bound for anonymous secret sharing schemes
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CRYPTO
1992
Springer
168views Cryptology» more  CRYPTO 1992»
13 years 10 months ago
Threshold Schemes with Disenrollment
Blakley, Blakley, Chan and Massey conjectured a lower bound on the entropy of broadcast messages in threshold schemes with disenrollment. In an effort to examine the conjecture, w...
Bob Blakley, G. R. Blakley, Agnes Hui Chan, James ...
EUROCRYPT
2004
Springer
13 years 11 months ago
On Generating the Initial Key in the Bounded-Storage Model
Abstract. In the bounded-storage model (BSM) for information-theoretically secure encryption and key-agreement one uses a random string R whose length t is greater than the assumed...
Stefan Dziembowski, Ueli M. Maurer
DCC
2005
IEEE
14 years 5 months ago
XOR-based Visual Cryptography Schemes
A recent publication introduced a Visual Crypto (VC) system, based on the polarisation of light. This VC system has good resolution, contrast and colour properties. Mathematically,...
Pim Tuyls, Henk D. L. Hollmann, Jack H. van Lint, ...
COCO
1993
Springer
133views Algorithms» more  COCO 1993»
13 years 10 months ago
On Span Programs
We introduce a linear algebraic model of computation, the Span Program, and prove several upper and lower bounds on it. These results yield the following applications in complexit...
Mauricio Karchmer, Avi Wigderson
COCOON
2008
Springer
13 years 7 months ago
Visual Cryptography on Graphs
In this paper, we consider a new visual cryptography scheme that allows for sharing of multiple secret images on graphs: we are given an arbitrary graph (V, E) where every node an...
Steve Lu, Daniel Manchala, Rafail Ostrovsky