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-Electronic contract-signing is an important issue in Electronic Commerce. This paper proposed a novel abuse-free contract signing protocol based on convertible signature and non-interactive designated verifier proof. One interesting property is that the outcome evidences are standard RSA signatures, which makes the protocol be easily integrated into existing systems.

This document and trademark(s) contained herein are protected by law as indicated in a notice appearing later in this work. This electronic representation of RAND intellectual property is provided for noncommercial use only. Permission is required from RAND to reproduce, or reuse in another form, any of our research documents. Limited Electronic Distribution Rights For More Information Support ...

This document and trademark(s) contained herein are protected by law as indicated in a notice appearing later in this work. This electronic representation of RAND intellectual property is provided for noncommercial use only. Permission is required from RAND to reproduce, or reuse in another form, any of our research documents. Limited Electronic Distribution Rights For More Information Support ...

Combinatorial property testing deals with the following relaxation of decision problems: Given a fixed property and an input f , one wants to decide whether f satisfies the property or is ‘far’ from satisfying the property. It has been shown that regular languages are testable, and that there exist context free language which are not testable. We show that there exists a language that is accept...

There is evidence that infants as young as 4.5 months use property-rich but not property-poor sounds as the basis for individuating objects (Wilcox, Woods, Tuggy, & Napoli, 2006). The current research sought to identify the age at which infants demonstrate the capacity to use property-poor sounds. Using the task of Wilcox et al., infants aged 7 and 9 months were tested. The results revealed tha...

E-commerce is a rapidly expanding sector all over the world. While this is apparently good news to the world’s consumers and business companies, it is creating big challenges to information security experts and legal experts. The former are striving to develop and implement technical solutions that can deter, detect, react and/or provide recovery measures from an attack. On the other hand, lega...

The design of an optical computer must be based on the characteristics of optics and optical technology, and not on those of electronic technology. The property of optical superposition is considered and the implications it has in the design of computing systems is discussed. It can be exploited in the implementation of optical gates, interconnections, and shared memory. INTRODUCTION Fundamenta...