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The rapid development of artificial intelligence and 5G network technology has opened a new era of interconnection of all things.The great improvement of computing power has threatened the traditional cryptographic algorithm based on the theory of computational difficulty.Data security and communication security have become key problems to be solved urgently in the era of Internet of things,hence cryptology has entered an intelligence era.The new generation of intelligent cryptology mainly consists of two core technologies:intelligent cryptographic algorithm based on neural network and intelligent cryptanalysis based on machine learning.The former uses the nonlinear characteristics of neural network to design the encryption process and improve the security of ciphertext.The latter trains the machine learning model through the clear ciphertext set to obtain the ciphertext features and improve the ciphertext decoding efficiency.This paper briefly reviews the development of cryptographic algorithms,discusses machine learning methods on intelligent cryptology,focuses on combing the latest progress of cryptographic algorithms and cryptanalysis intelligence at home and abroad,analyzes the advantages and disadvantages of intelligent cryptology at present,and discusses the research direction and challenges in the future.