The use of passwords in security protocols is particularly delicate because of the possibility of off-line guessing attacks. We study password-based protocols in the context of a recent line of research that aims to justify symbolic models in terms of more concrete, computational ones. We offer two models for reasoning about the concurrent use of symmetric, asymmetric, and passwordbased encrypt...

What are the technologies that will transform business and drive the research agenda for the IS field in the years to come? Which innovations, platforms, and paradigms will become dominant, and which others will ultimately pass into obscurity? In this panel discussion, we will seek answers to these questions from those with a unique and unmatched perspective. The leaders who have witnessed the ...

Almost everyone knows that the inner angles of a triangle sum to 180o. But if you ask the typical mathematician how to sum the solid inner angles over the vertices of a tetrahedron, you are likely to receive a blank stare or a mystified shrug. In some cases you may be directed to the Gram-Euler relations for higher dimensional polytopes [3, 4, 6, 7], a 19th century result unjustly consigned to ...

e nature of divine eternality is obscure in both historical andmodern discussions. In a way its obscurity is no surprise, given that the nature of time is so mysterious. But the obscurity is still notable relative to the other traditional divine attributes, which are comparatively much better understood. Our perplexities regarding eternality are compounded, I will argue here, by a failure to re...

H ow do smalland medium-sized firms raise external equity capital? In this paper, I describe two markets that entrepreneurs of smalland medium-sized enterprises use in the United States to raise equity: the organized private equity market and the market for angel capital. Both markets are important sources of equity capital for smalland mediumsized firms. However, until recently, not much was k...

Traditional search system approaches have either been centralized or use flooding to ensure accuracy of the results returned which have bad performance. This paper presents SPSS (Semantic Peer-to-Peer Search System) that search documents through the P2P network hierarchically based on document semantic vector generated by Latent Semantic Indexing (LSI) [1]. The search cost for a given query is ...

BACKGROUND Mediation modeling can explain the nature of the relation among three or more variables. In addition, it can be used to show how a variable mediates the relation between levels of intervention and outcome. The Sobel test, developed in 1990, provides a statistical method for determining the influence of a mediator on an intervention or outcome. Although interactive Web-based and stand...