NETWORKING
2004
14 years 3 months ago
2004
We present an efficient authenticated and fault-tolerant protocol (AFTD) for tree-based key agreement. Our approach is driven by the insight that when a Diffie-Hellman blinded key ...
TCC
2004
Springer
14 years 7 months ago
2004
Springer
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 ...
IPPS
2009
IEEE
14 years 9 months ago
2009
IEEE
In P2P file sharing systems, free-riders who use others’ resources without sharing their own cause system-wide performance degradation. Existing techniques to counter freerider...
TCC
2009
Springer
15 years 2 months ago
2009
Springer
We provide a simple protocol for secret reconstruction in any threshold secret sharing scheme, and prove that it is fair when executed with many rational parties together with a s...