Cryptography and network security：principles and practice：原理与实践 Cryptography and network security :: principles and practice / Cryptography and Network Security Principles and Practice Cryptography and Network Security:Principles and Practice Cryptography and Network Security Principles and Practices, Third Edition Computer security：principles and practice：原理与实践 Network security principles and practices Augmented reality：principles and practice：原理与实践 Information security principles and practice Computer security principles and practice