NETWORKING
2004
13 years 6 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
13 years 10 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
13 years 11 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
14 years 5 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...