National Institute of Standards and Technology における超伝導研究及び生活

Digital processing of speech signals

Cloud Computing is a flexible, cost-effective, and proven delivery platform for providing business or consumer IT services over the Internet. However, cloud Computing presents an added level of risk because essential services are often outsourced to a third party, which makes it harder to maintain data security and privacy, support data and service availability, and demonstrate compliance. Cloud Computing leverages many technologies (SOA, virtualization, Web 2.0); it also inherits their security issues, which we discuss here, identifying the main vulnerabilities in this kind of systems and the most important threats found in the literature related to Cloud Computing and its environment as well as to identify and relate vulnerabilities and threats with possible solutions.

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An analysis of security issues for cloud computing

An Efficient Algorithm for Media-based Surveillance System (EAMSuS) in IoT Smart City Framework

The Cloud Computing concept offers dynamically scalable resources provisioned as a service over the Internet.Economic benefits are the main driver for the Cloud, since it promises the reduction of capital expenditure and operational expenditure.In order for this to become reality, however, there are still some challenges to be solved. Amongst these are security and trust issues, since the user data has to be released to the Cloud and thus leaves the protection sphere of the data owner. Most of the discussions on these topics are mainly driven by arguments related to organisational means. This paper focuses on various security issues arising from the usage of Cloud services and especially by the rapid development of Cloud computing arena. It also discusses basic security model followed by various High Level Security threats in the industry.

Security Issues on Cloud Computing.

Cloud Computing is one of the biggest buzzwords in the computer world these days. It allows resource sharing that includes software, platform and infrastructure by means of virtualization. Virtualization is the core technology behind cloud resource sharing. This environment strives to be dynamic, reliable, and customizable with a guaranteed quality of service. Security is as much of an issue in the cloud as it is anywhere else. Different people share different point of view on cloud computing. Some believe it is unsafe to use cloud. Cloud vendors go out of their way to ensure security. This paper investigates few major security issues with cloud computing and the existing counter measures to those security challenges in the world of cloud computing..

http://www.mcs.csueastbay.edu/~lertaul/Cloud%20Security%20CamREADY.pdf

Security Challenges in Cloud Computing

It is widely recognized that data security will play a central role in future IT systems. Providing public-key cryptographic primitives, which are the core tools for security, is often difficult on embedded processor due to computational, memory, and power constraints. This contribution appears to be the first thorough comparison of two public-key families, namely elliptic curve (ECC) and hyperelliptic curve cryptosystems on a wide range of embedded processor types (ARM, ColdFire, PowerPC). We investigated the influence of the processor type, resources, and architecture regarding throughput. Further, we improved previously known HECC algorithms resulting in a more efficient arithmetic.

Elliptic and hyperelliptic curves on embedded μP

Reconsidering big data security and privacy in cloud and mobile cloud systems

The privacy of location-based services has gained attention with their increased popularity. To date, citing insufficient privacy demand and inefficient/immature privacy preserving technologies, service providers have not been willing to build private-enhanced systems in which they do not have access to users' location information. However, current practice is likely to change in coming years with increasing privacy awareness and technological advances. For instance, Narayanan et al. recently introduced a fast private equality testing protocol for proximity testing with an untrusted server. In the current work, based on basic notions of geometry and linear algebra, we describe a new three-party protocol for solving the same problem. Our proposed protocol decreases the number of encryptions needed and gives a more efficient solution for private equivalence testing.

Private proximity testing with an untrusted server

The health care industry is one of the important service providers that improves people lives. As the cost of the healthcare service increases, health insurance becomes the only way to get quality service in case of an accident or a major illness. As health insurance will reduces the costs and provides financial and economic stability for an individual. One of the main tasks of healthcare insurance providers is to monitor and manage the data and to provide support to customers. Due to regulations and business secrecy, insurance companies do not share the patient's data but since the data are not integrated and not in sync between insurance providers, there has been an increase in the number of fraud's occurring in healthcare. Often times ambiguous or false information is provided to health insurance companies in order to make them pay for some false claims to the policy holders. The individual policyholder may also claim benefits from multiple insurance providers. There is a financial loss of billions of dollars each year as estimated by the National Health Care Anti-Fraud Association (NHCAA). In order to prevent health insurance fraud, it is necessary to build a system to securely manage and monitor insurance activities by integrating data from all the insurance companies. As blockchain provides an immutable data maintaining and sharing, we propose a blockchain based solution for health insurance fraud detection.

Gokay Saldamli

Papers

Security Challenges in Cloud Computing

Elliptic and hyperelliptic curves on embedded μP

Reconsidering big data security and privacy in cloud and mobile cloud systems

Private proximity testing with an untrusted server

Health Care Insurance Fraud Detection Using Blockchain