Research On The Two-channel Anonymous Online Meeting Scheme Based On Anonymous Communication

Thanks to the development and popularization of the Internet,its integration with traditional conference gave birth to electronic online conferences,which have been widely used.While as people enjoy the convenience of the Internet,they also face serious security risks.In some conferences activities,users often want the transparency in information transmission and anonymous interaction between communicating subjects.Using password encryption and message hiding can only protect data security in the process of transmission,but can not do anything for the user to achieve the need of personal identity privacy protection.Anonymous communication technology is dedicated to the anonymous protection of the communication relationship between the two subjects in the network.Therefore,this dissertation uses cryptography encryption and anonymous communication technology at the same time in the Web online meeting,so as to design a dual-channel anonymous online meeting scheme.On the one hand,it can ensure that the meeting information is confidential and safe,and on the other hand,it can achieve the anonymity of personal privacy such as the identity and location of meeting participants.The main work of this dissertation has the following aspects:(1)An anonymous communication model is designed,and its communication mechanism adopts the next-hop route random selection strategy and hybrid encryption technology.Combining this model with online meetings,a new online meeting plan is proposed.There are two channels in the meeting project: users watch the meeting and speak at the meeting.The two channels are independent of each other and do not interfere with each other.The user enters the conference website page,registers and logs in to watch the conference.He can speak while watching the meeting,and the content of his speech is transmitted through the anonymous communication model.Whether speaking or watching a meeting,both the anonymity of the user' s identity and location information and the confidentiality of the meeting content are guaranteed.(2)Using an anonymity measurement model based on information entropy,the path length and anonymity are analyzed and calculated,which proves that the solution can achieve speaker anonymity,communication anonymity,and confidentiality of speech content.The security of the project is analyzed from two aspects of anti-attack and robustness,and it is compared with the encryption schemes of other online conferences.This conference project has a certain degree of robustness,which can resist a variety of common attacks,meet the requirements of security and confidentiality of the conference content as well as the anonymity of conference users' identities and locations.(3)By designing the experiment plan,and carrying out the system simulation experiment through a single machine,experimental data shows that when the number of system nodes increases,the average response time of users' speaking under a certain forwarding probability increases linearly,and the average response time of watching a meeting is much less than it,and the fluctuation is small.The average path length of communication is the same as theoretically expected,it is only related to the forwarding probability and has nothing to do with the number of nodes.This shows that under the appropriate forwarding probability,the dual-channel efficiency of the scheme is high,which can ensure real-time performance and has good robustness.