As the development of the computer technology and Internet, people began to run all kinds of activities on the Internet, such as e-commerce, e-governance, digital multimedia online sharing et al. Security frameworks and software provide the foundation for internet application. A unified national Certificate Authority (CA) provides security in e-commerce. If there were no responsibility cognizance technology based on the CA, it would be difficult to solve security problems which commerce and cause losses in e-commerce. It seriously hampered the development of electronic commerce. The difficult to trace people’s activities in the network caused people to untrusting. Fraud and so many of false information is another problem of network. It is urgently to find effectively Responsibility Cognizance Technology to solve these problems. To ensure a orderly development of the Internet，we need to do some In-depth study about the Responsibility Cognizance Technology based on web. The work of this dissertation is mainly focused on the studies of Responsibility cognizance technology. The main contributions of the paper are summarized as follows: (1) In analysis and study of the concept for non-repudiation, Auditability, Accountability, based on electronic authentication, electronic evidence, and the paper give the definition for web-based Responsibility Cognizance. (2)A third-party witness method is proposed to perform the Responsibility Cognizance. By studying the time-stamp protocol and evidence-preservation this paper propose a safety electronic witness protocol. This provides a possible solution for building a Responsibility Cognizance system. (3) Some Responsibility Cognizance frameworks for different scenes, such as a security transaction model that include responsibility cognizance, the content delivery systems of auditability, security distribution method for digital works, are proposed. It also does some software development work to validate those proposals.
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