Cryptographic Protocols in Electronic Payment Systems


The focus of this research was to study electronic payment systems and their security mechanism that can be achieved using cryptographic techniques. A number of electronic payment systems with a wide range of security characteristics have been previously proposed. The primary aim was to analyse security properties of those systems that have been implemented in a public domain or, are in the process of being implemented. My secondary emphasis has been to provide solutions to over come those weaknesses that might be present in those systems. The research also looked at generic payment architectures and provided a set generic security goals that formed the basis for analysis of security properties in electronic payment systems. The research consisted of analysis of prominent credit card payment systems like SET, Verified by Visa, MasterCard SecureCode, electronic cheque systems like FSTC eCheck protocol and a proposal for privacy enhanced electronic cheque system [JULY 2005] that overcomes weaknesses present in the existing system.

Implementation of Anonymous Auction System


Electronic auctions have become very popular in the last few years. They are a convenient way to buy and sell goods. Secure e-auction provides confidentiality to he bid such that only the bidder knows its value and at the same time it provides integrity service to the bid so the bidder cannot alter the value of the bid after its submission. E-cash is an anonymous public key certification system which allows an user to obtain a certificate on its public key from a certificate authority wihout revealing the value of the public key. Such technology is useful to simulate the properties of the physical cash sytem The aim of this project was to implement an anonymous auction system along with an e-cash system. An anonymous auction system enables participants to conduct electronic auctions without their identity being made public and also provides confidentiality of the bid, anonymity of the bidder, and publicly verifiable transcripts of all the bids. From an exisiting system design the software architecture of the auction system was developed and implemented. We also describe the framework of an anonymous auction system and the softwares that was used to implement such a system.

Study of MARS and RC6 Block Ciphers


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Report on Integrated Network Management Product,

Solar Winds 2001®
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Analysis of Windows 2000 IPSec


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