Attribute-Based Encryption for Access Control in Cloud Ecosystems

<p>We introduce a distributed, fine-granuled, policy-based resource access control protocol leveraging on Attribute-Based Encryption. The protocol secures the whole access control procedure from the authorization issuer to the resource server providing grant confidentiality, proof of possession, antiforgery and may be implemented through a common web token exchange flow plus a HTTP basic authentication. As such, it may easily map to Cloud computing SaaS paradigms, enabling services integration into a single authorization-centric ecosystem even across multiple identity domains. We also present the results of a performance evaluation on a first prototype implementation.</p>

The Design Canvas Platform on the Arena-O Startup Venture

This study aims to plan a suitable business model using the Platform Design Canvas for the Arena-O Startup business. This study uses a qualitative method. Data collection was carried out by in-depth interviews and documentation study. The informants in this study represent the respective actors of the platform business, namely producers, consumers, and platform owners. The results of this study describe the business model of a sports field reservation startup called Arena-O, which is detailed using thirteen blocks on the Platform Design Canvas. Thus, thirteen blocks in this reseacrh are platform owners, stakeholder platforms, enabling services, empowering services, other services, core value proposition, ancillary value proposition, infrastructure and core components, transactions, channels & contexts, partners, peers producers, peers consumers. This research can find out the visualization of Arena-O's business processes from upstream to downstream. Then from these results, the managerial implications of Enabling Services, Other Services, and Partners indicators can be applied to Arena-O so that it can develop.

Attribute-Based Encryption for Access Control in Cloud Ecosystems

<p>We introduce a distributed, fine-granuled, policy-based resource access control protocol leveraging on Attribute-Based Encryption. The protocol secures the whole access control procedure from the authorization issuer to the resource server providing grant confidentiality, proof of possession, antiforgery and may be implemented through a common web token exchange flow plus a HTTP basic authentication. As such, it may easily map to Cloud computing SaaS paradigms, enabling services integration into a single authorization-centric ecosystem even across multiple identity domains. We also present the results of a performance evaluation on a first prototype implementation.</p>

Trends, variations and prediction of staff sickness absence rates among NHS ambulance services in England: a time series study

ObjectivesOur aim was to measure ambulance sickness absence rates over time, comparing ambulance services and investigate the predictability of rates for future forecasting.SettingAll English ambulance services, UK.DesignWe used a time series design analysing published monthly National Health Service staff sickness rates by gender, age, job role and region, comparing the 10 regional ambulance services in England between 2009 and 2018. Autoregressive Integrated Moving Average (ARIMA) and Seasonal ARIMA (SARIMA) models were developed using Stata V.14.2 and trends displayed graphically.ParticipantsIndividual participant data were not available. The total number of full-time equivalent (FTE) days lost due to sickness absence (including non-working days) and total number of days available for work for each staff group and level were available. In line with The Data Protection Act, if the organisation had less than 330 FTE days available during the study period it was censored for analysis.ResultsA total of 1117 months of sickness absence rate data for all English ambulance services were included in the analysis. We found considerable variation in annual sickness absence rates between ambulance services and over the 10-year duration of the study in England. Across all the ambulance services the median days available were 1 336 888 with IQR of 548 796 and 73 346 median days lost due to sickness absence, with IQR of 30 551 days. Among clinical staff sickness absence varied seasonally with peaks in winter and falls over summer. The winter increases in sickness absence were largely predictable using seasonally adjusted (SARIMA) time series models.ConclusionSickness rates for clinical staff were found to vary considerably over time and by ambulance trust. Statistical models had sufficient predictive capability to help forecast sickness absence, enabling services to plan human resources more effectively at times of increased demand.

Restrictions on Active Inclusion and the Role of Social Services: The Case of Lithuania

The use of active inclusion (AI) policies is steadily growing worldwide, especially among developed (OECD) countries. This concept is most consistently applied in EU countries, with some countries spending more than 1% of their GDP on the activation policies. This concept is also well-known in the countries of the American continent, where it stands as the basis of the workfare model. The concept of AI is linked to the promotion of social inclusion and participation in the labour market for people of working age experiencing poverty or social exclusion. This article is the second work of the authors analysing the concept of AI and its implementation in Lithuania. The article analyses the content of AI concept, placing more emphasis on the limitations of AI and criticism from the right-wing and the left-wing politicians. The article also examines the issue of social services and their place in the concept of AI. The empirical part of the article analyses different dimensions of social services in Lithuania during the period from 2009 to 2018(9). On the basis of the performed analysis, it is concluded that the availability of enabling services in Lithuania is insufficient, despite the fact that positive changes in the availability and coverage of the above-mentioned services have been observed since 2009.

Cryptography in Cloud Computing

Cryptography is a key element in establishing trust and enabling services in the digital world. It is represented in a ways that are not accessible to human users. Hence, humans are left out the trust and security in the digital world. Cryptography is necessary in modern communication protocols and to many digital services. A primitive or protocol should be defined to reach the security goal. Beside the introduction part this paper represents the types of cryptography, algorithm of cryptography and techniques of cryptography and the interaction between Government and cryptography.

Cryptography in Cloud Computing

Cryptography is a key element in establishing trust and enabling services in the digital world. It is represented in a ways that are not accessible to human users. Hence, humans are left out the trust and security in the digital world. Cryptography is necessary in modern communication protocols and to many digital services. A primitive or protocol should be defined to reach the security goal. Beside the introduction part this paper represents the types of cryptography, algorithm of cryptography and techniques of cryptography and the interaction between Government and cryptography.

PrEstoCloud

Fog computing extends multi-cloud computing by enabling services or application functions to be hosted close to their data sources. To take advantage of the capabilities of fog computing, serverless and the function-as-a-service (FaaS) software engineering paradigms allow for the flexible deployment of applications on multi-cloud, fog, and edge resources. This article reviews prominent fog computing frameworks and discusses some of the challenges and requirements of FaaS-enabled applications. Moreover, it proposes a novel framework able to dynamically manage multi-cloud, fog, and edge resources and to deploy data-intensive applications developed using the FaaS paradigm. The proposed framework leverages the FaaS paradigm in a way that improves the average service response time of data-intensive applications by a factor of three regardless of the underlying multi-cloud, fog, and edge resource infrastructure.

Africa's e-commerce players must overcome hurdles

Subject African e-commerce. Significance Jumia, Africa’s largest e-commerce operator and first technology ‘unicorn’, raised 196 million dollars in its New York Stock Exchange (NYSE) IPO listing in April, with a current estimated sales growth of 67.6% for 2020. E-commerce in Africa is estimated to rise from an estimated 16.5 billion dollars in 2017 to 75 billion by 2025, according to McKinsey, propelled by a projected increase in consumer spending in Africa to over 2 trillion dollars by 2030. Impacts There will be exponential growth in the development of complementary, facilitative and enabling services (such as payments and logistics). Industry growth will reaffirm the link between technical infrastructure indicators and economic growth, leading to higher public investment. There will be a greater demand from civil society groups for more robust legal and regulatory frameworks around consumer protection. Start-ups with a multinational footprint will facilitate more intra-African trade and greater economic integration over the long term.