94 search results - page 3 / 19 » Proxy Re-signature Schemes Without Random Oracles |
PKC
2007
Springer
14 years 12 days ago
2007
Springer
We provide a positive result about the Fiat-Shamir (FS) transform in the standard model, showing how to use it to convert threemove identification protocols into two-tier signatur...
ICICS
2007
Springer
14 years 13 days ago
2007
Springer
We propose a convertible undeniable signature scheme without random oracles. Our construction is based on the Waters signatures proposed in Eurocrypt 2005. The security of our sche...
ICALP
2007
Springer
14 years 13 days ago
2007
Springer
Ring signatures, introduced by Rivest, Shamir and Tauman, enable a user to sign a message anonymously on behalf of a “ring”. A ring is a group of users, which includes the sign...
EUROCRYPT
2004
Springer
13 years 11 months ago
2004
Springer
We describe a short signature scheme that is strongly existentially unforgeable under an adaptive chosen message attack in the standard security model. Our construction works in g...
ASIACRYPT
2009
Springer
14 years 26 days ago
2009
Springer
Adaptive oblivious transfer (adaptive OT) schemes have wide applications such as oblivious database searches, secure multiparty computation and etc. It is a two-party protocol whic...