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» Characterizing Ideal Weighted Threshold Secret Sharing
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TCC
2004
Springer
164views Cryptology» more  TCC 2004»
13 years 10 months ago
Hierarchical Threshold Secret Sharing
We consider the problem of threshold secret sharing in groups with hierarchical structure. In such settings, the secret is shared among a group of participants that is partitioned ...
Tamir Tassa
DAM
2006
102views more  DAM 2006»
13 years 5 months ago
Secret sharing schemes on access structures with intersection number equal to one
The characterization of ideal access structures and the search for bounds on the optimal information rate are two important problems in secret sharing. These problems are studied ...
Jaume Martí-Farré, Carles Padr&oacut...
TCC
2007
Springer
89views Cryptology» more  TCC 2007»
13 years 11 months ago
On Secret Sharing Schemes, Matroids and Polymatroids
Abstract. One of the main open problems in secret sharing is the characterization of the access structures of ideal secret sharing schemes. As a consequence of the results by Brick...
Jaume Martí-Farré, Carles Padr&oacut...
COCOON
2005
Springer
13 years 10 months ago
Error-Set Codes and Related Objects
By considering a new metric, Nikov and Nikova defined the class of error-set correcting codes. These codes differ from the errorcorrecting codes in the sense that the minimum dis...
An Braeken, Ventzislav Nikov, Svetla Nikova
CRYPTO
2005
Springer
171views Cryptology» more  CRYPTO 2005»
13 years 10 months ago
On Codes, Matroids and Secure Multi-party Computation from Linear Secret Sharing Schemes
Error correcting codes and matroids have been widely used in the study of ordinary secret sharing schemes. In this paper, we study the connections between codes, matroids, and a s...
Ronald Cramer, Vanesa Daza, Ignacio Gracia, Jorge ...