The objective of this paper is to give a comprehensive introduction to applied cryptography with an engineer or computer scientist in mind. The emphasis is on the knowledge needed to create practical systems which supports integrity, confidentiality, or authenticity. Topics covered includes an introduction to the concepts in cryptography, attacks against cryptographic systems, key use and handling, random bit generation, encryption modes, and message authentication codes. Recommendations on algorithms and further reading is given in the end of the paper. This paper should make the reader able to build, understand and evaluate system descriptions and designs based on the cryptographic components described in the paper.

[서평]「Applied Cryptography」

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International Journal of Electronic Government Research: Guest editorial preface

Book review: Applied cryptography: Protocols, algorithms, and source code in C

The growing rate of ICT utilization particularly the Internet and mobile
 phones has influenced at an exponential rate online interaction and
 communication among the generality of the populace. However, with the
 enormity of businesses on the Internet, Tanzania is yet to harness the
 opportunities for optimal financial gains. This study is exploratory in
 nature as it attempts to unveil the prospects of ecommerce implementation,
 participation, motivation and opportunity to the developing countries like
 Tanzania where by the domestic market is very big to ensure the growth of
 agricultural sector. The paper proposes to investigate the ability of
 consumers to purchase online, the available motivation to do so, and the
 opportunities for Internet access. We argue the Government and central bank
 to encourage innovative new technological developments by pre-regulating
 electronic money to familiarize itself with electronic money schemes
 generally. Findings revealed that Tanzanians have the ability to participate
 in e-commerce, but there is need for improved national image to bring in the
 element of trust and discipline within, and before the international
 communities. Currently, consumers source for information online but make
 purchases the traditional way.

/pdf/a-viewpoint-of-tanzania-e-commerce-and-implementation-39isfijk12.pdf

A viewpoint of Tanzania e-commerce and implementation barriers

Fair-Share Replication in Data Grid

Wireless sensor networks are increasingly being used in applications where QoS and low cost are the overriding considerations. Conventional schemes of using sensor nodes and incorporating these three phenomena (reliability, availability and serviceability) to attain QoS can effectively improve not only the reliability of the overall WSNs but security as well. We discuss the reverse look of QoS and hence present mathematically the three significant quality factors that should be currently taken into account in developing wireless sensor networks application services and security. We also discussed specific characteristics and constraints of wireless sensor networks, QoS factors required when developing security applications for such networks. To evaluated possibility of establishing secure wireless sensor network through QoS we have used Hawk nodes to demonstrate how security can be archived through QoS experimentally. The flow models show how the QoS can be integrated to increase the security and applications running in WSNs.

QoS as Means of Providing WSNs Security

State of Tanzania e-readiness and e-commerce: Overview

For successful data transmission in wireless networks, security features are very much essential to implement. A mobile adhoc network contains a set of autonomous mobile stations that can correspond with each other instead of some adverse situation of wireless environment. Those mobile nodes that are not in the same series can communicate with others through intermediate hops. Security is a challenging mission in mobile adhoc network (MANET) due to many serious issues in the network such as hop-to-hop persistent wireless connectivity, high frequency of variation in topology of the network, and increasing rate of link failure due to higher mobility. So, it is very challenging to develop a secured, dynamic, and efficient routing protocol for such a magnificent network. In this chapter, vulnerability issues of MANET are focused on with a spotlight on prominent MANET protocols. A brief study on technical issues responsible for vulnerability in MANET has been depicted with systematic review on various issues and protocols that provide secured routing in the network. Security Issues in Mobile Devices and Mobile Adhoc Networks

George S. Oreku

Papers

A viewpoint of Tanzania e-commerce and implementation barriers

Fair-Share Replication in Data Grid

QoS as Means of Providing WSNs Security

State of Tanzania e-readiness and e-commerce: Overview

Security Issues in Mobile Devices and Mobile Adhoc Networks