关键词: 大数据, 智慧后勤信息, 动态加密, Hadoop, MapReduce, 超混沌映射

Abstract: In order to improve the sensitivity of information encryption key and encryption acceleration ratio, this paper proposes a dynamic encryption method of intelligent logistics information based on big data technology. The method constructs intelligent logistics information system based on hierarchical planning concept, uses Logistics hyperchaotic sequence to reorganize the big data structure, uses arithmetic cryptosystem to recode the Logistics sequence data and dynamically mixes and encrypts the ciphertext and plaintext sequence. The method extracts the attribute quantity of association rules of big data after structural reorganization, uses Rossle to realize the chaotic mapping and grouping encryption optimization of big data, applies the MapReduce parallel programming model in Hadoop big data platform to rearrange and encrypt the data sequence, and stores the encrypted data to HDFS. The experimental results show that the method has high key sensitivity of encrypted information and the average encryption acceleration ratio is 5.5s. It is suitable for encrypting massive data with large file memory.

Key words: big data, intelligent logistics information, dynamic encryption, Hadoop, MapReduce, hyperchaotic mapping