Abstract
The fast development of the Web provides new ways for effective distribution of network-based digital goods. A digital marketplace provides a platform to enable Web users to effectively acquire, share, market and distribute digital content. However, the success of the digital marketplace business models hinges on securely managing the digital rights and usage of the digital content. For example, the digital content should be only consumable by paid users. This paper describes a Web-based system that enables the secure exchange of digital content between Web users and prevents users from illegally re-sell of the digital content. Part of our solution is based on broadcast encryption technology.