Abstract

The Internet is a relatively convenient environment for promoting the distribution of digital contents. However, over the open Internet, a content protection mechanism is extremely required to resist any eavesdropping and modification on the content and the associated license. Cryptography is a general measure to construct content protection. Nevertheless, in the existing schemes, much cost is spent on the management, delivery, and validity verification of cryptographic keys. As we know, even marginal cost reductions can lead to competitive advantage in the electronic business. Therefore, reducing cost for content protection is a significant issue. In this paper, a secure and cost-effective content protection scheme is presented for providing content confidentiality, content integrity, and the associated license integrity with simplifying key management, delivery, and verification. The proposed scheme eliminates sensitive key tables and reduces the number of secure channels and public key dictionaries. We believe that the secure and cost-effective solution will be great benefit to the digital content industries.

Paper Details