The increasing complexity and geographical separation of design data, tools and teams has created a need for a collaborative and distributed design environment. In this paper we p...
We outline a scheme by which encrypted multicast audiovisual data may be watermarked by lightweight active network components in the multicast tree. Every recipient receives a slig...
A currency exchange system is introduced for a multi-currency electronic money trial, in which smartcardbased electronic moneys (two currencies) are circulated over the Internet. ...
Unsolicited bulk email (aka. spam) is a major problem on the Internet. To counter spam, several techniques, ranging from spam filters to mail protocol extensions like hashcash, hav...
Flavio D. Garcia, Jaap-Henk Hoepman, Jeroen van Ni...
Rivest and Shamir presented two simple micropayment schemes, “PayWord” and “MicroMint,” for making small purchases over the Internet [14]. Recently, Adachi et al. have poi...