1769 search results - page 311 / 354 » Cryptography |
TCC
2009
Springer
14 years 10 months ago
2009
Springer
It is well known that general secure function evaluation (SFE) with information-theoretical (IT) security is infeasible in presence of a corrupted majority in the standard model. ...
TCC
2009
Springer
14 years 10 months ago
2009
Springer
We present the first hierarchical identity based encryption (HIBE) system that has full security for more than a constant number of levels. In all prior HIBE systems in the literat...
TCC
2009
Springer
14 years 10 months ago
2009
Springer
Verifiable random functions (VRFs), introduced by Micali, Rabin and Vadhan, are pseudorandom functions in which the owner of the seed produces a public-key that constitutes a commi...
TCC
2009
Springer
14 years 10 months ago
2009
Springer
The concept of witness-hiding suggested by Feige and Shamir is a natural relaxation of zero-knowledge. In this paper we identify languages and distributions for which many known co...
TCC
2009
Springer
14 years 10 months ago
2009
Springer
Proofs of Retrievability (PoR), introduced by Juels and Kaliski [JK07], allow the client to store a file F on an untrusted server, and later run an efficient audit protocol in whi...