In this paper, we present a complete digital signature message stream, just the way the RSA digital signature scheme does it. We will focus on the operations with large numbers due to the fact that operating with large numbers is the essence of RSA that cannot be understood by the usual illustrative examples with small numbers[1].

Supervisor reduction procedure can be used to construct the reduced supervisor with a reduced number of states in discrete-event systems. The main concepts which are used in this procedure are control consistency of states, control cover, induced supervisor, and normality of the reduced supervisor w.r.t. the original supervisor. In this paper, it is proved that the reduced supervisor, construct...

Vehicular ad-hoc network (VANET) provides vehicle to vehicle and vehicle to RSAs (Road side antennas) communication. By using Multichannel TDMA MAC protocol, once per frame each node is ensured to access the Control channel which may cause delay at the receiver end. The Proposed “Vehicle Speed Synchronized protocol” will work on Control channel as well as on Service channel. The proposed protoc...

What difference does robotic telepresence make to the management of ambiguity in distributed knowledge work? We examined this question in a post-surgical intensive care where remote medical workers struggled to coordinate their work in the face of ambiguities related to their extremely sick patients. Our in-depth field study allowed us to explore how differently ambiguity was managed when night...

Credential revocation is a critical problem in grid environments and remains unaddressed in existing grid security solutions. We present a novel grid authentication system that solves the revocation problem. It guarantees instantaneous revocation of both long-term digital identities of hosts/users and short-lived identities of user proxies. With our approach, revocation information is guarantee...

This study was conducted to probe the effect of the observer ring technique on the participants’ writing achievement. In so doing, the researchers utilized a quasi-experimental design with 20 participants in the control group and 18 in the experimental group. Instrumentation included a writing handout, an Oxford Placement Test (standard proficiency test), and a rating scale of writing. As a tre...

  Background: Nowadays job stress is one of the most important health problems that health and safety professionals are facing with. Much of previous studies have focused on interventions such as stress management and, they have ignored the role of psychosocial factors in occurrence of job stress. This study investigated the mediator role of supervisor support on the association between wo...