Symmetric cryptography

Author: Zhang Yuqing Hu Yu Pu Xiao Guozhen
Publisher:
Publish Date: 2002-08-01
Features: This book is a monograph on the fundamentals of information and network security—symmetric cryptography, comprehensively discussing various basic issues and new research progress in symmetric cryptography. Some of the achievements in this book originate from the National Natural Science Foundation of China, the Open Project Fund of the ISN National Laboratory, and the Pre-research Fund of the Defense Laboratory. The monograph elaborates on topics such as cryptographic functions and information leakage, stream ciphers, and block ciphers. It provides a detailed introduction to the concept of the security of cryptographic systems, the security metrics of cryptographic functions—correlation immunity functions, nonlinearity, differential and higher-order differentials, and the natural extension of correlation immunity functions—elastic functions. It also introduces the pseudorandomness of sequences, the computation of linear complexity, geometric sequences, logarithmic sequences, reduced sequences, and sparse sequences with special purposes. It discusses compact and fast block ciphers, which are currently the mainstream standards for hardware and software encryption. Additionally, it presents several well-known block cipher designs, including IDEA, RC5, RC6, Twofish, and the renowned software encryption algorithm SAFER. The book also provides C-source code for several important block ciphers. This book is intended for researchers and engineers in the field of information security, cybersecurity professionals, students and faculty in information security, as well as scientists and engineers in communication, electronics, and computer science.