45 search results - page 3 / 9 » Security Notions and Generic Constructions for Client Puzzle... |
MSS
2007
IEEE
13 years 11 months ago
2007
IEEE
Storage systems are increasingly subject to attacks. Cryptographic file systems mitigate the danger of exposing data by using encryption and integrity protection methods and guar...
CISC
2007
Springer
13 years 11 months ago
2007
Springer
We formalize a generic method of constructing efficient group signatures, specifically, we define new notions of unlinkable randomizable signature, indirectly signable signature ...
PKC
2004
Springer
13 years 10 months ago
2004
Springer
In a practical system, a message is often encrypted more than once by different encryptions, here called multiple encryption, to enhance its security. Additionally, new features ...
CCS
2004
ACM
13 years 10 months ago
2004
ACM
We show that a number of recent definitions and constructions of fuzzy extractors are not adequate for multiple uses of the same fuzzy secret—a major shortcoming in the case of...
EUROCRYPT
2007
Springer
13 years 11 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 ...