This paper presents the design and development of a prototype of an expert system application for the detection of certain types of abnormal behaviour in open networks (and in particular in the management systems of such networks) and shows how it provides decision aid for the System Security Officer (SSO). The objective is to aid the SSO determine the seriousness of the possible attack and als...

Large-scale virtual organizations (VOs) often comprise resource providers from different administrative domains, each probably with a specific security model. Grids try to solve this problem by providing a new security infrastructure featured with single-sign on (SSO). However, the usability of Grids is often impaired by the complicity of configuring and maintaining the new security infrastruct...

The advent of Software-as-a-Service (SaaS) has led to the development of multi-party web applications (MPWAs). MPWAs rely on core trusted third-party systems (e.g., payment servers, identity providers) and protocols such as Cashier-as-aService (CaaS), Single Sign-On (SSO) to deliver business services to users. Motivated by the large number of attacks discovered against MPWAs and by the lack of ...

Single sign-on mechanisms allow users to sign on only once and have their identities automatically verified by each application or service they want to access afterwards. There are few practical and secure single sign-on models, even though it is of great importance to current distributed application environments. Most of current application architectures require the user to memorize and utiliz...

INTRODUCTION Systematic social observation (SSO) methods traditionally measure neighborhoods at street level and have been performed reliably using virtual applications to increase feasibility. Research indicates that collection at even higher spatial resolution may better elucidate the health impact of neighborhood factors, but whether virtual applications can reliably capture social determina...

Section 1110 of the Social Security Act provides for a cooperative research grants program. The grants given by the Social Security Administration (SSA) under this program are to nonprofit organizations for research in the broad area of social security. Reports on six recently completed grants projects are summarized below, accompanied by a list of completed SSA research grants projects, with t...

The Fourth International Social Security Association (ISSA) Meeting of Directors of Social Security Organizations in Asia and Pacific was held in Seoul from 9 to 11 November 2005 and was organized in cooperation with the National Health Insurance Corporation of the Republic of Korea. The Meeting was attended by 131 participants from 29 countries. Also at the Meeting were representatives from th...

The article that follows is a reprint of Part I of a report presented by Dalmer D. Hoskins, Secretary General of the International Social Security Association (ISSA), to the organization's XXIVth General Assembly (November 1992, Acapulco). It identifies and interprets the major trends currently influencing the evolution of social security programs around the world, and analyzes these developmen...