Research on Data Encryption Technology Based on Cloud Computing Technology in Communication Channel
This paper proposes a communication channel data encryption scheme based on cloud computing technology.In this scheme,Advanced Encryption Standard(AES)algorithm is adopted to achieve high security,and at the same time,high-speed stream encryption and decryption are realized through the extension of AVX2 instruction set.This paper also designs a hierarchical key management system suitable for cloud environment to realize flexible and scalable key distribution and management.In addition,security reinforcement is carried out from the cloud platform and virtualization layer to resist integrity attacks and side channel attacks.The experimental results show that the file encryption and decryption throughput is increased by 22.4%,the transmission delay is reduced by 19.6%,the Central Processing Unit(CPU)resource overhead is increased by 4.5%,and the memory resource overhead is increased by 6.2%compared with the original cloud environment,which verifies the feasibility and effectiveness of this scheme.
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