Chinese Journal on Internet of Things ›› 2019, Vol. 3 ›› Issue (2): 72-79.doi: 10.11959/j.issn.2096-3750.2019.00100

• Theory and Technology • Previous Articles     Next Articles

Research on high security G function algorithm

Rui CHEN1,Zan LI1,2,Jia SHI1,Lei GUAN1   

  1. 1 State Key Laboratory of Integrated Services Networks,Xidian University,Xi’an 710071,China
    2 Collaborative Innovation Center of Information Sensing and Understanding,Xi’an 710071,China
  • Revised:2018-10-29 Online:2019-06-30 Published:2019-07-17
  • Supported by:
    The National Natural Science Foundation of China(61631015);The Key Scientific and Technological In-novation Team Plan of Shaanxi Province(2016KCT-01)

Abstract:

The differential frequency hopping (DFH) overcomes the limitation of frequency hopping and improves the ability to resist tracking interference.The G function determines the DFH sequence and directly affects the performance of DFH communication systems.However,with the complication of wireless communication system such as large capacity DFH network,which poses huge challenges to the use of the number theory based and chaos theory assisted sequence.As a result,in order to improve the security of the system,the novel G function construction was proposed with the aid of hybrid encryption algorithm and the security of hybrid algorithm was analyzed.Moreover,the equivalence principle of G function algorithm and the encryption algorithm was proved.The simulation results show that the DFH sequence generated by the new G function has excellent performance and the performance of the DFH systems is improved greatly.

Key words: differential frequency-hopping sequence, cryptographic algorithm, security, randomness, complexity

CLC Number: 

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