摘要
YCH方案是一个基于二元单向函数和Shamir(t,n)门限方案的有效多密钥共享方案.以YCH方案为基础,基于可验证的秘密共享技术,采用新的子影子密钥构造方式,提出一种新的可验证多密钥共享方案,此方案能检测到密钥服务器或者合作成员可能存在的欺诈行为,而且与已有的方案相比,在多数情况下该方案效率更优.
Based on the verifiable secret sharing scheme presented in 2005, a new verifiable multi-secret sharing scheme is presented via a novel method to construct sub-shadow keys on the basis of the YCH multi-secret sharing scheme in this paper. The analysis shows that new scheme can detect cheating behavior from the dealer or the cooperating participants. The new scheme performs better than existing schemes in most cases.
出处
《扬州大学学报(自然科学版)》
CAS
CSCD
北大核心
2009年第3期70-73,共4页
Journal of Yangzhou University:Natural Science Edition
关键词
门限方案
多密钥共享
可验证密钥共享
threshold scheme
multi-secret sharing
verifiable secret sharing