Attribute-Based encryption with break-glass

Authors:
Achim D. Brucker;Helmut Petritsch;Stefan G. Weber
Affiliations:
SAP Research, Karlsruhe, Germany;SAP Research, Karlsruhe, Germany;Telecooperation Group, Technische Universität Darmstadt, Darmstadt, Germany
Venue:
WISTP'10 Proceedings of the 4th IFIP WG 11.2 international conference on Information Security Theory and Practices: security and Privacy of Pervasive Systems and Smart Devices
Year:
2010

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Abstract

Attribute-based Encryption (abe) allows for implementing fine-grained decentralized access control based on properties or attributes a user has. Thus, there is no need for writing detailed, user-based policies in advance. This makes abe in particular interesting for implementing security mechanisms in dynamic environments such as ubiquitous computing, disaster management, or health-care. For supporting the latter two application areas, common abe approaches lack one important feature: break-glass, i. e., the controlled overriding of access control restrictions. In this paper we present an integration of break-glass into an approach for end-to-end secure information sharing using abe techniques.