Research in DRM architecture based on watermarking and PKI

摘要

Analyze the virtue and disadvantage of the present digital copyright protecting system, design a kind of security protocol model of digital copyright protection, which equilibrium consider the digital media's use validity, integrality, security of transmission, and trade equity, make a detailed formalize description to the protocol model, analyze the relationship of the entities involved in the digital work copyright protection. The analysis of the security and capability of the protocol model shows that the model is good at security and practicability.