250 search results - page 27 / 50 » Improving the Exact Security of Digital Signature Schemes |
DRM
2008
Springer
13 years 9 months ago
2008
Springer
The recent attack on Apple iTunes Digital Rights Management [17] has brought to light the usefulness of proxy re-encryption schemes for Digital Rights Management. It is known that...
EUROCRYPT
2001
Springer
14 years 5 days ago
2001
Springer
Abstract. We show that finding an efficiently computable injective homomorphism from the XTR subgroup into the group of points over GF(p2 ) of a particular type of supersingular e...
CCS
2003
ACM
14 years 27 days ago
2003
ACM
Forward-secure signatures (FSSs) have recently received much attention from the cryptographic theory community as a potentially realistic way to mitigate many of the difficulties...
EUROPKI
2007
Springer
14 years 1 months ago
2007
Springer
An undeniable mobile billing system allows a mobile network service provider to bill its subscribers with trustworthy evidences. Chen, Jan and Chen proposed such a billing system b...
AMC
2005
13 years 7 months ago
2005
An efficient signcryption scheme based on elliptic curve is proposed in this paper. The signcryption scheme combines digital signature and encryption functions. The proposed schem...