Water rights for variable supplies

The relative merits of different systems of property rights to allocate water among different extractive uses are evaluated for the case where variability of supply is important. Three systems of property rights are considered. In the first, variable supply is dealt with through the use of water entitlements defined as shares of the total quantity available. In the second, there are two types of water entitlements, one for water with a high security of supply and the other a lower security right for the residual supply. The third is a system of entitlements specified as state-contingent claims. With zero transaction costs, all systems are efficient. In the realistic situation where transaction costs matter, the system based on state-contingent claims is globally optimal, and the system with high-security and lower security entitlements is preferable to the system with share entitlements.property rights, state-contingent claims, water, Resource /Energy Economics and Policy,

APLIKASI TRANSAKSI VOUCHER MENGGUNAKAN RFID DAN FINGERPRINT

Nowdays that modern and technology has applied to everyday life. So people have been spoiled with facilities and public services are fast and reliable. But in Indonesia, we still often see a variety of public service or a system of transactions either payment or purchase is still less well, in the sense that there is still a long queue and the service too long. To avoid these then various systems was made aimed at improving the transaction process or the payment in terms of time efficiency. In the system "Aplikasi Transaksi Voucher Menggunakan RFID dan Fingerprint" will provide convenience and security in the transaction. Application of RFID technology in the transaction process will minimize transaction processing and fingerprint technology that are processed using minutiae method is used as a security system for the owner of an RFID card. And the two technologies are integrated into a system that supports the transaction process. Keywords: RFID, fingerprint, minutia

Modelling Smart Card Security Protocols in SystemC TLM

Smart cards are an example of advanced chip technology. They allow information transfer between the card holder and the system over secure networks, but they contain sensitive data related to both the card holder and the system, that has to be kept private and confidential. The objective of this work is to create an executable model of a smart card system, including the security protocols and transactions, and to examine the strengths and determine the weaknesses by running tests on the model. The security objectives have to be considered during the early stages of systems development and design, an executable model will give the designer the advantage of exploring the vulnerabilities early, and therefore enhancing the system security. The Unified Modeling Language (UML) 2.0 is used to model the smart card security protocol. The executable model is programmed in SystemC with the Transaction Level Modeling (TLM) extensions. The final model was used to examine the effectiveness of a number of authentication mechanisms with different probabilities of failure. In addition, a number of probable attacks on the current security protocol were modeled to examine the vulnerabilities. The executable model shows that the smart card system security protocols and transactions need further improvement to withstand different types of security attacks

A Review of Information Security from Consumer’s Perspective Especially in Online Transactions

In the current internet technology, most of the transactions to banking system are effective through online transaction. Predominantly all these e-transactions are done through e-commerce web sites with the help of credit/debit cards, net banking and lot of other payable apps. So, every online transaction is prone to vulnerable attacks by the fraudulent websites and intruders in the network. As there are many security measures incorporated against security vulnerabilities, network thieves are smart enough to retrieve the passwords and break other security mechanisms. At present situation of digital world, we need to design a secured online transaction system for banking using multilevel encryption of blowfish and AES algorithms incorporated with dual OTP technique. The performance of the proposed methodology is analyzed with respect to number of bytes encrypted per unit time and we conclude that the multilevel encryption provides better security system with faster encryption standards than the ones that are currently in use

Design and Implementation of Security Transaction Management System

随着我国证券市场开放性程度的不断提升，证券整个行业正在趋向稳步的发展阶段，但是在证券行业自身高速发展的大背景下，证券行业的IT资本投入以及IT应用还是处于发展滞后的阶段。本文所设计的证券交易管理系统目的就是从以上问题具体分析和了解，在证券交易管理过程中的买卖委托，行情显示，以及清算交割等等方面真正意义上实现电脑自动化，信息化的证券交易后台数据管理系统。 本文的主要研究内容包括证券交易管理系统的设计与实现的课题研究背景和意义，依次简单的介绍课题研究背景和意义，对于目前证券交易管理系统的设计与实现的国内外研究现状进行分析；其次是详细介绍了证券交易管理系统的相关技术，包括系统应用程序分层结构以及B...With the improvement of the degree of openness in China, securities market, securities and the entire industry is tend to a steady development stage. But in the context of the rapid development of the securities industry itself, the securities industry's IT capital investment as well as IT applications still in the stage of inadequate development. The Purpose of securities transaction management s...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201223110