Journal on Communications ›› 2014, Vol. 35 ›› Issue (11): 139-145.doi: 10.11959/j.issn.1000-436x.2014.11.016

• security protocol • Previous Articles     Next Articles

New secure distributed secret sharing scheme of n product

Zhen-hua CHEN1,2,Shun-dong LI1,Bao-cang WANG3,Ji-liang LI1,Xin LIU1   

  1. 1 School of Computer Science,Shanxi Normal University,Xi’an 710062,China
    2 School of Computer Science and Technology,Xi’an University of Science and Technology,Xi’an 710054 ,China
    3 State Key Laboratory of Integrated Service Network,Xidian University,Xi’an 710071,China
  • Online:2014-11-25 Published:2017-06-20
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China

Abstract:

Since Shamir’s secret sharing scheme does not have the property of the multiplicative homomorphism,an encoding method is utilized for privacy-preserving data to overcome the drawbacks in secure distributed multiplication calculation when using traditional Shamir’s polynomial to share the product of n secrets.Using this encoding method with multiplicative homomorphism and a commitment scheme supporting additive homomorphism,a new secure distributed secret sharing scheme of n product in one session is implemented and the proposed scheme is secure under the presence of malicious participants.The analysis shows that proposed scheme is not only more simple and feasible but also more efficient than previous schemes.

Key words: G?del encoding, secret sharing, distribution, secure multi-party multiplication, homomorphic commitment

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