Die Evolution des World Wide Web führt zu einem verstärkten Wunsch nach und Bedarf an dezentralen, selbstverwalteten Digitalen Identitäten, auch als Self-Sovereign Identities (SSI) bekannt. Im Gegensatz zu gegenwärtig verbreiteten zentralisierten und föderierten Digitalen Identitäten...

Chapter 1 Basic concepts of cybersecurity -- Chapter 2 Attack vectors and malware -- Chapter 3 System security -- Chapter 4 Cryptography -- Chapter 5 Key management and PKI -- Chapter 6 Network security -- Chapter 7 Wireless Security -- Chapter 8 User authentication -- Chapter 9 IAM – Identity...

Platforms acting as sales channels for producers often charge users for access, via a subscription fee or a markup on hardware. We compare two common forms of vertical pricing agreement that platforms use with sellers: per-­unit and proportional fees. In particular, we analyze the critical role...

Platforms acting as sales channels for producers often charge users for access, via a subscription fee or a markup on hardware. We compare two common forms of vertical pricing agreement that platforms use with sellers: per-unit and proportional fees. In particular, we analyze the critical role...

Cloud computing is the technology that provides different types of services as a useful resource on the Internet. Resource trust value will help the cloud users to select the services of a cloud provider for processing and storing their essential information. Also, service providers can give...

Purpose An electronic health record (EHR) enables clinicians to access and share patient information electronically and has the ultimate goal of improving the delivery of healthcare. However, this can create security and privacy risks to patient information. This paper aims to present a model...

Prior studies have shown that while ISPs are well positioned to provide residential and SME users critical protection from cybercrime, their incentives to do so are often insufficient. The presence of competition in providing broadband service is a factor we might expect to impact such...

This paper presents a monetary-theoretic model to study the implications of networks' collection of personal identifying data and data security on each other's incidence and costs of identity theft. To facilitate trade, agents join clubs (networks) that compile and secure data. Too much data...

Despite the various attractive features that grid computing has to offer, it has many great security challenges, such as access control. With the expansion of the network scale, a large number of authorization requests have to be treated; on the other hand, the multi-domain nature of grid...

The most challenging issues in cloud computing are access control and data security because users of the cloud outsource sensitive data and information to cloud provider servers, which are not within the same trusted domain as the data owner. Within cloud computing, various services and...

This article aims to ensure a dynamic set up of access control policies across collaborating organizations where these organizations adopt heterogeneous access control models. To attain this objective, this contribution started with a survey on existing access control models, and their...

From 1994-2009, forty-three states changed the design of their driver's license/state identification cards in an effort to reduce underage access to and consumption of alcohol and tobacco. In these states, individuals under the age of 21 are issued licenses that are vertically oriented, whereas...

From 1994-2009, forty-three states changed the design of their driver's license/state identification cards in an effort to reduce underage access to and consumption of alcohol and tobacco. In these states, individuals under the age of 21 are issued licenses that are vertically oriented, whereas...

Due to the ever increasing number of web services available through the Internet, the privacy as a fundamental human right is endangered. Informed consent and collection of information are two important aspects while interacting on the Internet through web services. The ease of data access and...

This article describes how earlier detection of security problems and the implementation of solutions would be a cost-effective approach for developing secure software systems. Developing, gathering and sharing similar repeatable programming knowledge and solutions has led to the introduction of...

"This book provides a thorough overview on the different facets of mobile technology management and its integration into modern society, highlighting issues related to analytics, cloud computing, and different types of application development"--Provided by publisher.

Collaborative and distributed applications, such as dynamic coalitions and virtualized grid computing, often require integrating access control policies of collaborating parties. Such an integration must be able to support complex authorization specifications and the fine-grained integration...

This paper presents a model for privacy preserving access control which is based on variety of purposes. Conditional purpose is applied along with allowed purpose and prohibited purpose in the model. It allows users using some data for certain purpose with conditions. The structure of...

Health professionals need an access to various dimensions of Electronic Health Records (EHR). Depending on technical constraints, each organization defines its own access control schema exhibiting heterogeneity in organizational rules and policies. Achieving interoperability between such schemas...

Despite of its emergence and advantages in various domains, big data still suffers from major disadvantages. Timeless, scalability, and privacy are the main problems that hinder the advance of big data. Privacy preserving has become a wide search era within the scientific community. This paper...

Nowadays, Cloud Computing is considered one of the important fields in both research and industry. Users enjoy membership of cloud providing effective services called time-limited services. This paper addresses time-limited services offering an attribute-based access control method and...

With the advancement of web services technology, security has become an increasingly important issue. Various security standards have been developed to secure web services at the transport and message level, but application level has received less attention. The security solutions at the...

Purpose This paper aims to describe the development of a new experimental CAPTCHA (completely automated public turing test to tell computers and humans apart), which is supposed to provide better protection against spam bots compared to the existing captcha solutions. Design/methodology/approach...

Authorised users (insiders) are behind the majority of security incidents with high financial impacts. Because authorisation is the process of controlling users? access to resources, improving authorisation techniques may mitigate the insider threat. Current approaches to authorisation suffer...

Knowledge sharing has been identified as a major focus area for knowledge management. Efforts are made with a view to identify the most effective ways to share knowledge, as a step towards improving organizational performance. In this striving, various factors have been identified as impediments...

Collaborative and distributed applications, such as dynamic coalitions and virtualized grid computing, often require integrating access control policies of collaborating parties. Such an integration must be able to support complex authorization specifications and the fine-grained integration...

Interoperation and services sharing among different systems are becoming new paradigms for enterprise collaboration. To keep ahead in strong competition environments, an enterprise should provide flexible and comprehensive services to partners and support active collaborations with partners and...

Purpose – The purpose of this paper was to determine factors that could be used to create different authentication requirements for diverse online banking customers based on their risk profile. Online security remains a challenge to ensure safe transacting on the Internet. User authentication,...

Purpose – The interoperability of cloud data between web applications and mobile devices has vastly improved over recent years. The popularity of social media, smartphones and cloud-based web services have contributed to the level of integration that can be achieved between applications. This...