摘要
提出了一个可信多重密钥共享方案.该方案能同时共享多个密钥,用于重构多个密钥的系统秘密被分解成n个可多次使用的保密子密钥,分发给各个成员.管理者给成员分配保密子密钥分配时,成员通过验证能识别出管理者欺骗.密钥重构时,密钥重构成员能识别其他成员提供的影子子密钥的真伪,同时也能识别对公开信息的各种篡改.该方案能有效地防止恶意成员通过伪造获取其它全部或部分密钥.通过严格的验证,确保重构出的各密钥是可信的.
A new trusted verifiable multi-secret sharing （TVMSS） scheme which is based on the （t, n） threshold is proposed. In the scheme ,multiple secrets can be shared simultaneously by the system. The dealer is able to split a system secret into n different reusable verifiable secure sub-secrets ,and distribute the sub-secrets to the n participants respectively. Participant can verify secure sub-secret via public message. The proposed scheme provides efficient solutions against potential cheating done by either the dealer or a participant, hackers＇ tampering of public message, and malicious participant＇s forging of all or some secrets of the system. Through strict verifying process, every secret reconstructed by participant is reliable.
出处
《小型微型计算机系统》
CSCD
北大核心
2008年第4期635-638,共4页
Journal of Chinese Computer Systems
基金
国家自然科学基金项目(60403027)资助
湖北省教育厅优秀中青年项目(Q200629001)资助
关键词
门限方案
管理者欺骗
成员欺骗
篡改
多重密钥共享
threshold scheme
dealer cheating
participant cheating
tamper
multi-secret sharing
