116 search results - page 2 / 24 » A Security Model for Anonymous Credential Systems |
CRYPTO
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. We propose a new and efficient signature scheme that is provably secure in the plain model. The security of our scheme is based on a discrete-logarithm-based assumption p...
PKC
2009
Springer
14 years 5 months ago
2009
Springer
In this work, we consider the task of allowing a content provider to enforce complex access control policies on oblivious protocols conducted with anonymous users. As our primary ...
CRYPTO
2009
Springer
13 years 12 months ago
2009
Springer
We construct an efficient delegatable anonymous credentials system. Users can anonymously and unlinkably obtain credentials from any authority, delegate their credentials to other ...
SPW
2004
Springer
13 years 10 months ago
2004
Springer
This paper identifies certain privacy threats that apply to anonymous credential systems. The focus is on timing attacks that apply even if the system is cryptographically secure....
ACNS
2008
Springer
13 years 11 months ago
2008
Springer
In the pursuit of authentication schemes that balance user privacy and accountability, numerous anonymous credential systems have been constructed. However, existing systems assume...