The postgraduate program of computer network and information security in Guizhou University is a postgraduate program under the College of Computer Science and Technology, which has two first-level master programs (computer science and technology, software engineering) and two professional master workstations (Guizhou Computer Control Technology Master Workstation and Guizhou Cloud Computing and Big Data Master Workstation). There are three academic master's degree authorization points (computer application technology, computer software and theory, network and information security), two professional master's degree authorization points (computer technology and software engineering) and two in-service master's degree authorization points (computer technology and software engineering). The professional profile of the graduate students majoring in computer network and information security in Guizhou University is as follows:

Professor Xiang Li, director of China Cryptography Society, honorary president of Guizhou University and a famous domestic expert, started his research work in the field of cryptography at the earliest. "Cryptography and Application" has become an important research direction of the doctoral program of "Computer Software and Theory" in Guizhou University, and it was officially awarded the right of "two disciplines Master's Degree in Information Security". At present, the discipline has formed three relatively stable research fields: cryptography and application, network and information system security, and information security management and evaluation. The main research contents of each in-service postgraduate field are as follows:

(1) cryptography and its application

The research contents include public key cryptosystem, homomorphic encryption system, combined public key, quantum cryptography, trusted computing, trusted access control, threshold signcryption, multi-party authentication, HECC and two-line pairing, formal analysis of multi-party security protocols, temporal logic and model checking.

(2) Network and information system security

The research contents include PKI/PMI and its application, e-government/business security, big data security, cloud computing security, information hiding and detection, digital copyright protection, privacy protection, deep packet detection, network behavior analysis, network attack detection, network attack early warning, Ad hoc network security, wireless sensor network (WSN) security and so on.

(3) Information security management and evaluation

The research contents include information security risk assessment, information security level protection, content security detection, information security early warning and emergency response, public opinion analysis and early warning, computer or digital forensics, and cyber attack threat assessment.

At present, there are 9 tutors in this discipline, including 7 professors and 2 associate professors. In recent five years, he has undertaken 5 national scientific research projects, 3 provincial-level projects 14, 3 municipal-level projects and 9 horizontal projects, published more than 80 papers in Chinese core journals (including SCI and EI 34) and monograph 1, won the second prize of provincial scientific and technological progress 1 and 4 invention patents.

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