Research On Name-based Trust And Security Mechanism In Named Data Networking

The current deficiencies and bottlenecks in the Internet architecture are becoming more and more prominent.Many scientists and industry people are paying attention to the next generation of Internet communication technologies.At present,a variety of new network architectures have emerged,of which named data networking is considered to be one of the most promising projects.Named data networking(NDN)solves the problem of insufficient IP addresses and repeated data transmission in the current network.It also introduces many new security issues.To improve the efficiency of data transmission,Named data networking uses routers to cache data.The security of data is no longer dependent on the location of the data,but relying on the data itself.Data security has become an urgent problem to be solved.For the security of data in named data networking,experts and scholars propose solutions to solve data security problems,but the trust mechanism of existing solutions is inefficient,and when third-party authorities are attacked,the trust mechanism cannot work,seriously affecting the experience of data consumers.In view of the above problems,the main research work of this paper is as follows:1)Summarize the principles,advantages and disadvantages of current solutions,and analyze the key technologies and theories used in the solution,such as identity-based hierarchical encryption,public key infrastructure and blockchain,to provide a theoretical basis for subsequent solutions.2)In view of the security problem of named data in named data networking,this paper first proposes a system model of name-based trust and security mechanism,introduces the role of each part of the system and the goal of program design,and then introduces the name-based trust mechanism and the name-based security mechanism,the trust mechanism part proposes an identity authentication method based on blockchain technology,which combines the information service entity to authenticate the identity of the data producer.The trust mechanism relies on the identity authentication method,and the encryption scheme in the security mechanism is to implement than the existing scheme.3)This paper proposes an identity authentication method based on blockchain technology.Compared with the existing authentication scheme based on Public Key Infrastructure(PKI)technology,the experimental results show that the scheme is improved 44% in efficiency.Because the name-based trust scheme proposed in this paper is based on identity authentication,the name-based trust scheme proposed in this paper is better.The system common parameters of the storage domain in the blockchain make the encryption scheme easier to implement,and the scheme is applicable to networks of different sizes.