无需安全信道可扩展的可验证多秘密共享方案  

An Extensible and Verifiable Multi-secret Sharing Scheme Without Secure Channel

作　　者：鲁秀青[1] 程相国[1] 

机构地区：[1]青岛大学信息工程学院,青岛266071

出　　处：《青岛大学学报（自然科学版）》2014年第3期49-52,共4页Journal of Qingdao University(Natural Science Edition)

基　　金：山东省自然科学基金(批准号:ZR2013FQ005)资助

摘　　要：有些多秘密共享方案存在以下的缺陷:参与者的秘密份额需要秘密分发者选取并通过安全信道分发给参与者;当需要增加新成员或群秘密时,秘密份额需重新选取,影响系统的可扩展性。提出的多秘密共享方案可以实现以下功能:秘密份额由参与者自己独立选取,实现了秘密份额选取的随机性;不需要在秘密分发者和参与者之间建立安全信道,减少了系统开销;需要增加新成员或群秘密时,秘密份额可以重用,很好地实现了扩展性。A few multi-secret sharing schemes have the following drawbacks： each secret share is chosen by the secret dealer and must be passed to the the partner through the secure channel; when a new partner and a new group secret join the group,each secret share must be chosen again. The proposed scheme can realize the following functions：each secret share is chosen by the partner and this can achieve the randomness of secret share; no secure channel is needed between the secret dealer and the partners, which reduces the system expense; in addition,each secret share is reusable and this can bring about good expandability.

关 键 词：多秘密共享 秘密份额 安全信道 扩展性 

分 类 号：TP181[自动化与计算机技术—控制理论与控制工程]