179 search results - page 29 / 36 » On the Security of Some Proxy Blind Signature Schemes |
EUROCRYPT
2007
Springer
14 years 1 months ago
2007
Springer
We study an adaptive variant of oblivious transfer in which a sender has N messages, of which a receiver can adaptively choose to receive k one-after-the-other, in such a way that ...
DRM
2003
Springer
14 years 22 days ago
2003
Springer
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...
DASFAA
2006
IEEE
14 years 1 months ago
2006
IEEE
Database outsourcing is an important emerging trend which involves data owners delegating their data management needs to an external service provider. Since a service provider is a...
ASIACRYPT
2003
Springer
14 years 22 days ago
2003
Springer
This paper investigates some modular powering functions suitable for cryptography. It is well known that the Rabin encryption function is a 4-to-1 mapping and breaking its one-wayn...
ASIACRYPT
1999
Springer
13 years 11 months ago
1999
Springer
Abstract. The problem of proving a number is of a given arithmetic format with some prime elements, is raised in RSA undeniable signature, group signature and many other cryptograp...