Anonymous, Secure, Traceable, and Efficient Decentralized Digital Forensics

Digital forensics is crucial to fight crimes around the world. Decentralized Digital Forensics (DDF) promotes it to another level by channeling the power of blockchain into digital investigations. In this work, we focus on the privacy and security of DDF. Our motivations arise from (1) how to track an anonymous- and-malicious data user who...

WebDSL: Linguistic Abstractions for Web Programming

Information systems store and organize data, and manage business processes concerned with that data. Information systems aim to support operations, management and decision-making in organizations. Web applications are ideal for implementing information systems. Although existing web frameworks provide abstractions for creating web applications,...

Dual Access Control for Cloud-Based Data Storage and Sharing

Cloud-based data storage service has drawn increasing interests from both academic and industry in the recent years due to its efficient and low cost management. Since it provides services in an open network, it is urgent for service providers to make use of secure data storage and sharing mechanism to ensure data confidentiality and service...

Automated Access Control via License Plate Recognition using Neocognitron Neural Network

In 1979 Fukushima developed a hierarchical, multilayered neural network called Neocognitron and used it for the automatic recognition of handwritten Japanese symbols. We combined the Neocognitron classifier with a special image and segment processor and applied the system in 2001 for automatic recognition of license plates in laboratory...

Practical Threshold Multi-Factor Authentication

Multi-factor authentication (MFA) has been widely used to safeguard high-value assets. Unlike single-factor authentication (e.g., password-only login), t-factor authentication (tFA) requires a user always to carry and present t specified factors so as to strengthen the security of login. Nevertheless, this may restrict user experience in...

System Impacts of User Scheduling with Minimal Angular Separation Constraints in Radio Resource Management for 5G and Beyond

The system effects and trade-offs of varying the minimal angular separation among multiple simultaneous co-frequency users are investigated for a high-capacity multibeam communication scenario. Through the statistical system simulations, it is demonstrated that the optimal (non-zero) value of the required separation depends on the base station...

Aligning stakeholder interests, governance requirements and blockchain design in business and government information sharing

Governance requirements for systems supporting information sharing be-tween businesses and government organisations (B&G) are determined by a high variety of stakeholders with often conflicting interests. These conflict-ing interests can hamper the introduction and scaling-up of ICT-innovations that change their roles and authorities. We...

Design of a software architecture supporting business-to-government information sharing to improve public safety and security: Combining business rules, Events and blockchain technology

Toensurepublicsafetyandsecurity,itisvitallyimportantforgovernmentstocol- lect information from businesses and analyse it. Such information can be used to determine whether transported goods might be suspicious and therefore require physical inspection. Although businesses are obliged to report some information, they are reluctant to share addi-...

Weaving Web Applications with WebDSL (Demonstration)

This paper is a pre-print of: Danny M. Groenewegen, and Eelco Visser. Weaving Web Applications with WebDSL (Demonstration). In: Gary T. Leavens (editor) Companion to the 24th ACM SIGPLAN Conference on Object-Oriented Programing, Systems, Languages, and Applications (OOPSLA 2009). WebDSL is a domain-specific language for the development of web...

MAC protocols for wireless sensor networks and their evaluation

The advent of small, and cheap sensors provides a wide range of measuring options. By making these sensors operate wirelessly we can now measure more than ever. However, wireless operation also provides new challenges. For example, how can we make these wireless sensors communicate effectively, i.e. without all the sensors trying to talk at the...

Opportunistic Spectrum Access: Designing Link and Transport layer

Resources Sharing and Access Control in Group-oriented Networks: Fednet and Related Paradigms

A Personal Network (PN) is a network composed of devices of a person that can communicate with each other independently from their geographical location. Extra functionality in PNs enables the cooperation amongst different persons forming a group-oriented network called a Federation of Personal Networks (Fednet). A Fednet is a secure,...

Declarative Access Control for WebDSL: Combining Language Integration and Separation of Concerns

Preprint of paper published in: ICWE 2008 - 8th International Conference on Web Engineering, 14-18 July 2008; doi:10.1109/ICWE.2008.15 In this paper, we present the extension of WebDSL, a domain-specific language for web application development, with abstractions for declarative definition of access control. The extension supports the definition...