Research On The Encryption Algorithm Of Linear Chaos In Multicore Based On OpenMP And Thread Optimization

With the promotion and popularization of multi-core processors,parallel computing technology has attracted more and more attention.How to improve the overall performance of the computer system and fully take advantage of multi-core processors is a basic problem in various fields of computer,which also shows that the trend of parallelism is becoming more and more obvious.Information security is more and more important for people.Once the personal privacy data and sensitive information involved in mobile payment,e-mail and online shopping are leaked,the harm to people is huge.Therefore,how to protect the privacy data and sensitive information more safely is the key problem in the field of information security.This paper focuses on the application of parallel computing technology in information security.By using linear chaotic encryption algorithm digital signature files are generated,such as digital certificates,to protect information.In order to prevent short period of linear chaotic sequences,multi-dimensional piecewise linear chaotic equations are used to generate equivalent classes,and the chaotic random sequence is combined to encrypt/decrypt the data.Since the current many multi-core processors are based on shared memory,this paper uses Open MP and thread optimization technology in multicore processors to realize the design of parallel algorithm.It applies the parallel algorithm in e-mail server to realize the encrypted distribution and storage of e-mail.It improves and optimizes the data parallelism of Open MP.It designs the data structure in order to achieve the scheduling and management of parallel tasks in the e-mail server,enhances the parallel processing ability of the system and ensures the security of user information.The experimental results show that the parallel scheduling based on Open MP and thread optimization can give full play to the performance advantages of the parallel system,and the random sequence based on multi-dimensional piecewise linear chaos is more secure.By adding the parallel design process to the information security,the system's speed and integrity can be improved,and at the same time,reliable and fast response services can be provided for the user's information security.