Smartcard-Based e-Coin for Electronic Payments on the (Mobile) Internet

Nowadays e-purses are not being offered as payment method on the Internet. This is mainly due to the fact that vendors have to integrate in their devices a security application module (SAM) to exchange security messages between the e-purse and that module during the payment phase. In this paper we introduce a new payment method that combines the main advantages of e-purses and the use of e-coins to make payments. This proposal does not need either a SAM to make and verify payments on the Internet nor an on-line e-coin validation. Thus, we introduce the possibility that this e-purse can be easily integrated in payment applications that vendors offer on the Internet. Moreover, our proposal is based on the use of Javacard applets with the aim of being used in both traditional Javacard-compliant smartcards and SIM smartcards, which involves that our proposal might be considered as a mobile payment system.