IFIP11
2004
14 years 25 days ago
2004
This paper proposes a formal model of the Bellare-Rogaway type [1] that enables one to prove the security of an anonymous credential system in a complexity theoretic framework. Th...
SPW
2004
Springer
14 years 4 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
14 years 5 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...
PKC
2009
Springer
14 years 12 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 ...