Research On Efficient System For Mobile Phone Number And Short Message Security

With the rapid growth of modern mobile communication technology,the short message service was widely used in many fields,and provides convenient and fast communication channels.The rapid development of the Internet industry makes the number of smart phone users rise sharply,and further promote the use of SMS services.A lot of personal privacy information,such as bank account numbers and verification codes,need to be transmitted via SMS.Compared with the SMS attack by outside criminals,it is more serious that SMS data is leaked by service providers,so preventing the internal leakage of user mobile phone number and SMS privacy has become an urgent problem.This paper has studied the communication process of the SMS service,and analyzed the security threats to users during the SMS communication process.We proposed a systematic solution to protect the mobile phone number of mobile users and the security of plain text transmission,which can further ensure the security of mobile users in SMS communication system.The paper's works can be summarized as follow:(1)Aiming at the problem of mobile phone number confidentiality for mobile user,based on the comparison of common hash algorithm,a lightweight hash function is proposed to hash a mobile phone number,and the hash value is transmitted in the communication system instead of the original mobile phone number,so the privacy of mobile user identity can be ensured,And the feasibility of the scheme is analyzed by combining the SIM card and A3 encryption algorithm.(2)Aiming at the insecure issue of SMS plain text transmission,the public key cryptosystem of REESSE1+ was proposed to implement the encryption and decryption of SMS by comparing the security of the encryption algorithm,and according to the advantages of the internal phone flash memory and public key certificate were used to store and distribute the user's public and private key.(3)Aiming at the data viewing authority of the internal administrator of the SMS center database,the idea of data-level authority management is proposed,and attribute permission menu tables are designed for database fields to support different administrators to view the data values of different fields,which allows we to view the communication details more securely and efficiently.