101 search results - page 17 / 21 » Compact Group Signatures Without Random Oracles |
EUROCRYPT
2010
Springer
13 years 7 months ago
2010
Springer
We investigate the possibility to prove security of the well-known blind signature schemes by Chaum, and by Pointcheval and Stern in the standard model, i.e., without random oracle...
CTRSA
2012
Springer
12 years 3 months ago
2012
Springer
We study the problem of searching on encrypted data, where the search is performed using a plaintext message or a keyword, rather than a message-specific trapdoor as done by state...
STOC
2009
ACM
14 years 8 months ago
2009
ACM
We consider matrix groups, specified by a list of generators, over finite fields. The two most basic questions about such groups are membership in and the order of the group. Even...
ACISP
2007
Springer
13 years 11 months ago
2007
Springer
Compact e-cash schemes allow a user to withdraw a wallet containing k coins in a single operation, each of which the user can spend unlinkably. One big open problem for compact e-c...
EUROCRYPT
2004
Springer
13 years 11 months ago
2004
Springer
We introduce Ad Hoc Anonymous Identification schemes, a new multi-user cryptographic primitive that allows participants from a user population to form ad hoc groups, and then prove...