The Internet can be considered as one of the most revolutionary inventions of the last century . It is used by different people for different reasons. some people use it to communicate with the other end of the world, some use it to increase their knowledge with the vast information available online . Another area that has made a prominent name in the World Wide Web is E-commerce. E-commerce, which is the process of business transactions on the web. is preferred for its simplicity and ease . However, one of the factors that cause a great degree of concern for customers and merchants is the level of security involved with these business transactions , . The mode of payment in e-commerce transactions is through ‘credit cards’. which have established more opportunities for businessmen but at the same time introduced new problems in the whole process of selling goods.
The fear of fraud in online business transactions keeps on increasing every year due to the increase in the respective crime , , . According to National Consumers League statistics for the year 2007. millions of dollars were lost in e-shopping transactions and have exposed the weakness of the credit card payment system . Credit card fraud and identity theft  are the two most prevalent security risks.
In the past, many efforts have been done to secure online transactions and make this medium a trusting one. During such efforts, the protocol of Secure Electronic Transactions (SET) was developed to secure credit card information from several kinds of attacks present online . Secure Socket Layer (SSL) also helps in providing a secure environment as it provides an encrypted medium to transfer credit card information . The use of biometrics has also been proposed by one of the researchers. this proved helpful to prevent identity theft and any false authorization regarding the credit card information.