关键词: 泛在网络, 信息安全, 建模评估, COOPN方法

Abstract: Driven by wireless access, radio frequency identification, network application and human-computer interaction, a ubiquitous network for human and things to communicate in anywhere at any time is becoming a reality. At the same time, the range of information security incidents have been expanded. In order to addressing information security risks roundly, the first thing to do is to assess and model information security risks. Traditional accessing and modeling methods are not fit for the new ubiquitous network security demands. It is necessary to realize ubiquitous network risk assessment and modeling based on current modeling methods. Compared with current methods, the proposed approach COOPN（CORAS-based Object Oriented Petri-Net） inherits the advantages of fine scalability, high reusability and fine detail description and adds formal description and dynamic analysis functions. Example proves that COOPN is an effective ubiquitous network information security risk assessment modeling method.

Key words: ubiquitous network, information security, modeling assessment, CORAS-based Object Oriented Petri-net（COOPN）