A privacy preserving e-payment scheme

Secure electronic payment is an integral part of e-commerce. The e-payment systems in current use require the revealing of the purchaser’s payment information to the seller, while purchasers are not always happy to subject the details of their payment information to possible misuse by sellers. As a result, the uptake of e-commerce is hampered from reaching its full potential. In this paper, we propose an online payment scheme which uses the traditional e-payment infrastructure but which reveals no payment information to the seller. This is done with only an incremental increase in computational power.