移动代理同态加密主动保护技术研究

Abstract

Abstract:

As a new distributed computing technology of mobile agent(MA),agent is completely exposed in remote host and is easy to be isolated and attacked by the malicious host.Homomorphism encryption protecting scheme was put forward,aiming to solve the security problems of mobile agents migrating across heterogeneous network execution environments.Homomorphism idea was applied to mobile cryptography,and encrypted mobile codes could be executed directly on different platforms without decryption.Encrypted results were decrypted by MA creator,and decreasing executing time of handling process effectively.Addition-multiplication homomorphism (AMH) encryption strategy was introduced,encrypting steps were used as follows:three address operands are encrypted by AMH,three address operating codes are encrypted by composite function,and the correctness and security of encryption and decryption method were verified in this scheme at the same time.Experimental results show that by contrast to data obfuscation method,nearly 1/3 executing time will be saved using this protection scheme and the malicious hosts are detected timely.

Key words: mobile agent, homomorphism encryption, composite function, active protection

CLC Number:

TP393

WU Jie-hong, ZHANG Lei, ZHANG Po, SHI Xiang-bin. Research of mobile agent active protection based on homomorphism encryption technology[J].吉林大学学报(工学版), 2013, 43(增刊1): 221-224.

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