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Usable encryption is a challenging task especially in hospital environments, where on the one hand legal regulations require to apply encryption technologies and on the other special usability requirements have to be fulfilled. A study has to be conducted to identify use cases and requirements and learn how to integrate the encryption technology Attribute-based Encryption in IT processes in a German...
Today, sharing information is ubiquitous in a connected world. However, several disadvantages exist, such as the loss of control over data or unwanted data processing and analysis by providers. A central data storage, which is applied by Online Social Networks (OSN), such as Facebook or driven by the government, such as storing medical health data of citizens centrally, is likewise affected. Efforts...
With the advent of the Internet of Things (IoT), communication between connected machines has become necessity. We simulate the communication of IoT by short-lived instant messaging for group communication. Group communication security requires such measures as group forward and backward secrecy and perfect forward secrecy. We satisfy these security measures by using a group controller and Attributebased...
Whenever multiple service providers and high demanding service customers communicate with each other, the need of compliance to legal regulations and enterprise guidelines increases the expectations on technologies and systems used to ensure security and data privacy. Regarding the challenge of managing access rules and enforcing authorization to data and resources, OASIS' XACML standard provides...
In certain business sectors adapting to modern and cost reducing technologies and service models can be still a challenge. This especially applies for health care related SME, such as hospitals, where cost reduction runs counter the need of being compliant to legal regulations and where the access control has to struggle against a diverse landscape of health care equipment accompanied by dynamic and...
In a multi-stakeholder cloud computing environment, data access control is of essential importance. Nowadays, it is usually handled in and deployed by every single cloud service on its own which makes the configuration of fine-grained access privileges cumbersome and economically expensive. In this paper, we introduce a novel cloud ecosystem architecture featuring an overall lightweight data access...
Businesses adopting Cloud Computing often have to comply with strict constraints, such as enterprise policies and legal regulations. From these compliance issues arise the need to enable managed cloud service consumption as a prerequisite for adoption. As we have shown before, the proposed TRusted Ecosystem for Standardized and Open cloud-based Resources (TRESOR) cloud ecosystem can achieve management...
In this paper we present an approach towards an open API for managed and unmanaged IPTV Ecosystems, as standardized in Open IPTV Forum and ETSI TISPAN. Inspired by ETSI TISPAN's so called IPTV Service State, containing information upon a current user's service usage data and behavior, the design and implementation of an IPTV Service State API realized inside the FOKUS IPTV Ecosystem will be presented...
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