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» Ideal Hierarchical Secret Sharing Schemes
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MTA
2007
82views more  MTA 2007»
13 years 7 months ago
A scalable signature scheme for video authentication
This paper addresses the problem of ensuring the integrity of a digital video and presents a scalable signature scheme for video authentication based on cryptographic secret sharin...
Pradeep K. Atrey, Wei-Qi Yan, Mohan S. Kankanhalli
CRYPTO
2001
Springer
111views Cryptology» more  CRYPTO 2001»
13 years 12 months ago
On the Cost of Reconstructing a Secret, or VSS with Optimal Reconstruction Phase
Consider a scenario where an l-bit secret has been distributed among n players by an honest dealer using some secret sharing scheme. Then, if all players behave honestly, the secre...
Ronald Cramer, Ivan Damgård, Serge Fehr
PERCOM
2006
ACM
14 years 7 months ago
Multi-channel Protocols for Group Key Agreement in Arbitrary Topologies
We consider group key agreement (GKA) protocols, used by a group of peers to establish a shared secret key for multicast communications. There has been much previous work to impro...
Ford-Long Wong, Frank Stajano
CORR
2010
Springer
183views Education» more  CORR 2010»
13 years 7 months ago
Forming the COUNCIL Based Clusters in Securing Wireless Ad Hoc Networks
-- In cluster-based routing protocol (CBRP), two-level hierarchical structure is successfully used to reduce over-flooding in wireless ad hoc networks. As it is vulnerable to a sin...
Alok Ojha, Hongmei Deng, Dharma P. Agrawal, Sugata...
CCS
2007
ACM
14 years 1 months ago
Provably secure ciphertext policy ABE
In ciphertext policy attribute-based encryption (CP-ABE), every secret key is associated with a set of attributes, and every ciphertext is associated with an access structure on a...
Ling Cheung, Calvin C. Newport