Journal on Communications ›› 2018, Vol. 39 ›› Issue (8): 169-175.doi: 10.11959/j.issn.1000-436x.2018143

• Papers • Previous Articles     Next Articles

Verifiable special threshold secret sharing scheme based on eigenvalue

Yanshuo ZHANG1,2,Wenjing LI1,2,Lei CHEN1,Wei BI3,Tao YANG2   

  1. 1 Department of Cryptography Science and Technology,Beijing Electronic Science and Technology Institute,Beijing 100070,China
    2 The Third Research Institute of Ministry of Public Security,Shanghai 201204,China
    3 Institute of Science,Zsbatech Corporation,Beijing 100195,China
  • Revised:2018-06-22 Online:2018-08-01 Published:2018-09-13
  • Supported by:
    The Opening Project of Key Lab of Information Network Security of Ministry of Public Security(C17608);The Information Technology Research Base of Civil Aviation Administration of China(CAAC-ITRB-201705);The National Natural Science Foundation of China(61772047)

Abstract:

Utilizing the characteristic that the characteristic equation of the n-th order matrix have multiple roots,the secret distributor distributes two different sub-keys to each participant,and these two sub-keys satisfy two conditions:linear independent and equality of the corresponding characteristic values.In the process of sub-key distribution and master key recovery,the black box can judge the authenticity of the participants’ activities through the characteristics of the sub-keys.If the two sub-keys have satisfied two conditions of linear independence and equal feature values,it can be determined that the participant’s activity is honest,otherwise,it can be determined that there exists fraudulent activity.The analysis results show that the scheme is correct,secure,and the information rate is 12.

Key words: secret sharing, eigenvalue, verifiable, black box

CLC Number: 

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