Sciweavers

SOCIALCOM
2010
13 years 9 months ago
Minimizing Disclosure of Private Information in Credential-based Interactions: A Graph-based Approach
We address the problem of enabling clients to regulate disclosure of their credentials and properties when interacting with servers in open scenarios. We provide a means for client...
Claudio Agostino Ardagna, Sabrina De Capitani di V...
SCN
2010
Springer
132views Communications» more  SCN 2010»
13 years 9 months ago
Solving Revocation with Efficient Update of Anonymous Credentials
Anonymous credential system promise efficient, ubiquitous access to digital services while preserving user privacy. However, their diffusion is impaired by the lack of efficient re...
Jan Camenisch, Markulf Kohlweiss, Claudio Soriente
IEEECIT
2010
IEEE
13 years 10 months ago
Enabling Privacy-preserving Credential-based Access Control with XACML and SAML
—In this paper we describe extensions to the access control industry standards XACML and SAML to enable privacy-preserving and credential-based access control. Rather than assumi...
Claudio Agostino Ardagna, Sabrina De Capitani di V...
SP
2002
IEEE
200views Security Privacy» more  SP 2002»
13 years 11 months ago
Design of a Role-Based Trust-Management Framework
We introduce the RT framework, a family of Rolebased Trust-management languages for representing policies and credentials in distributed authorization. RT combines the strengths o...
Ninghui Li, John C. Mitchell, William H. Winsborou...
GRID
2006
Springer
13 years 11 months ago
Streamlining Grid Operations: Definition and Deployment of a Portal-based User Registration Service
Manual management of public key credentials can be a significant and often off-putting obstacle to Grid use, particularly for casual users. We describe the Portal-based User Regis...
Ian T. Foster, Veronika Nefedova, Mehran Ahsant, R...
CMS
2006
150views Communications» more  CMS 2006»
14 years 25 days ago
Attribute Delegation Based on Ontologies and Context Information
This paper presents a model for delegation based on partial orders, proposing the subclass relation in OWL as a way to represent the partial orders. Delegation and authorization de...
Isaac Agudo, Javier Lopez, José A. Monteneg...
ESORICS
2007
Springer
14 years 3 months ago
Efficient Proving for Practical Distributed Access-Control Systems
We present a new technique for generating a formal proof that an access request satisfies accesscontrol policy, for use in logic-based access-control frameworks. Our approach is t...
Lujo Bauer, Scott Garriss, Michael K. Reiter
CSFW
2010
IEEE
14 years 3 months ago
Constraining Credential Usage in Logic-Based Access Control
—Authorization logics allow concise specification of flexible access-control policies, and are the basis for logic-based access-control systems. In such systems, resource owner...
Lujo Bauer, Limin Jia, Divya Sharma
WPES
2003
ACM
14 years 4 months ago
Hidden Credentials
Hidden Credentials are useful in situations where requests for service, credentials, access policies and resources are extremely sensitive. We show how transactions which depend o...
Jason E. Holt, Robert W. Bradshaw, Kent E. Seamons...
IFIP
2004
Springer
14 years 4 months ago
An Interactive Trust Management and Negotiation Scheme
Interactive access control allows a server to compute and communicate on the fly the missing credentials to a client and to adapt its responses on the basis of presented and decli...
Hristo Koshutanski, Fabio Massacci