About Me
UNDER CONSTRUCTION
Vijayakrishnan is a PhD Candidate at Macquarie University, Australia. His interests are in the area of cryptographic protocols focusing on key distribution and entity authentication, electronic commerce and electronic payments and the use of formal methods in cryptography. His other interest in computing include programming, networking and operating systems.
Vijayakrishnan is currently working on a project titled "Functional Cryptographic Protocols" under the guidance of Prof Josef Pieprzyk and Dr Hua Xiong Wang. This research encompasses the analysis and design of a class of protocols called functional cryptographic protocols. The motivating factor for this research is the need to analyse and design crypto-logic protocols that have a practical significance.
Research
My PhD research encompasses the analysis and design of a class of protocols called Functional Cryptographic Protocols. The motivating factor for this research is the need to analyse and design cryptologic protocols that have a practical significance.
Functional cryptologic protocols include protocols such as key establishment and management, key recovery and escrow, fair exchange, broadcast encryption. The applications of such protocols can be found in the field of digital broadcasting, contract signing, electronic auctions, electronic voting, electronic commerce and electronic tendering.
Tentatively the main goals of this research are:
Analysis, design and usage of functional cryptologic protocols.
The development of a formal framework for the analysis of functional cryptologic systems.
Explore integration and implementation techniques of functional cryptologic protocols.
Provide satisfactory proofs for application protocols based on functional cryptologic systems.
Notes
Electronic Payments
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
Report on Integrated Network Management Product, Solar Winds 2001
Report PDF | Web Presentation
Analysis of Windows 2000 IPSec
Web Presentation
2008
1. Vijayakrishnan Pasupathinathan, Josef Pieprzyk and, Hua Xiong Wang, Security Analysis of Australian and E.U. E-passport Implementation, Journal of Research and Practice in Information Technology, Vol. 40, No. 3, August 2008 (PDF)
2. Vijayakrishnan Pasupathinathan, Josef Pieprzyk and, Hua Xiong Wang, A Fair E-Tendering Protocol, In proceedings of International Conference on Security and Cryptography (SECRYPT 2008), Porto, Portugal, July 2008. (PDF)
3. Vijayakrishnan Pasupathinathan, Josef Pieprzyk and, Hua Xiong Wang, An On-line Secure E-passport Protocol, In proceedings of The 4th Information Security Practice and Experience Conference (ISPEC 2008), Sydney, Australia, April 2008, Lecture Notes in Computer Science (PDF)
4. Vijayakrishnan Pasupathinathan, Josef Pieprzyk and, Hua Xiong Wang, Formal Security Analysis of Australian E-passport Implementation In proceedings of Australasian Information Security Conference (AISC2008), Wollongong, Australia, Jan 2008, Conferences in Research and Practice in Information Technology (CRIPT), Vol 81. (PDF)
2006
1. Vijayakrishnan Pasupathinathan, Josef Pieprzyk, Hua Xiong Wang, Joo Yeon Cho Formal Analysis of Card-based Payment Systems in Mobile Devices In proceedings of 4th Australasian Information Security Workshop (AISW-NetSec 2006), Hobart, Tasmania, Jan 2006. Conferences in Research and Practice in Information Technology (CRIPT), Vol, 54. (PDF)
2005
1. ijayakrishnan Pasupathinathan, Josef Pieprzyk and Hua Xiong Wang. Privacy Enhanced electronic Cheque. In proceedings of 7th International IEEE Conference on E-Commerce Technology 2005, IEEE CS Press, Munich, Germany, July 2005. (PDF)
Teaching
E6A 341, Dept of Computing, Macquarie University, North Ryde, NSW 2109.
Phone: +61 (2) 9850 9542