This book systematically introduces the basic knowledge of information security. The book is divided into 10 chapters. 1 Chapter generally introduces the macro concept of information security and information security work in China. Chapter 2 introduces the basic knowledge needed to learn information security. The third, fourth and fifth chapters introduce cryptography, information system security and trusted computing respectively. The sixth chapter introduces the basic content of information security level protection and the design idea of high security level system. Chapters 7, 8 and 9 introduce information security engineering, information security management, information security emergency treatment and disaster recovery respectively. 10 chapter introduces the knowledge of information security regulations and standards.

This book is a professional basic course textbook for information security majors in colleges and universities. It is recommended to use it in the second semester of the second year or the first semester of the third year. This book is also applicable to information security training materials. Beginners can master the basic contents of information security technology and management in a short time through this book.