基于门限签名方案的BQS系统的服务器协议.pdf

RUXUEW ISSNl000—9825．CODEN 如“M4，∥如_f}w口旭，V01．2l，No．10。Octob盯20lO，pp．263l一2“l http：／／wwwjos．o唱．cn doi：10．3724／SP．J．1001．20lO．03661 0 rcserved． by胁“m据∥№触4陀，聃e凸胁甜e彳∞妇删o，^鲫c嚣．Allrights 基于门限签名方案的BQS系统的服务器协议宰 荆继武1，王品L2，林瑕锵1+，谢永泉1，顾青3 1(中国科学院研究生院信息安全国家重点实验室。北京lO0049) 2(中国科学技术大学电子工程与信息科学系，安徽合肥230027) 3(国家863计划信息安全基础设施研究中心，上海200336) SenrerProtocolsof ThreshoM ByzantineQuorumSystemsImpIementedUtilizing Schemes JING wANG LIN XIE GU Ji．wul， Jin91’-， Jing．Qian91+，Ybng—Q啪1，Qin93 of of 1(stateKeyLabo哪oryInfomati∞S∞研饥Gf础I啦univ粥i哆nechine卵Acad锄ySci％c懿，Be玎ing100049，Chi∞) ofElecn舶ic Info册ation 2(D印ar廿n印t Engine鲥ng蜘d sci∞ce，unive蜡时ofscience锄dTcchnologyofchinaHcfei230027，china) In触s缸uctuI℃Rc∞archC∞t盯ofNational863 3(Informati仰scc血ty P∞gram，Sh锄ghai200336，Chi∞) +coITespondingaIl廿lor：E—mail：linjq@loiB．cn J，LinJQ，XieYQ，GuQ．SeI’Ver of Jing·，W，Wang protocolsByzantinequorumsystems threshold utilizing si驴ature l000．9825／3661．h缸n Abstract： a托ack—rcsilientsen，icesover charulels Byz粕tinequor嘲systems(BQSs)proVidestorage asynchronous 锄d online Data failures．COcA(Comell tolemte／senrers’Byz粕tine certification卸也ority)髓d aseⅣer EXchange)havedesigned protocoltoimplememBQSs恤．csholdsignatIlre c锄execute the communicationofclients． proactiVerccoVeⅨconVeniently，姐dc姐simplifykcym柚agement蛐d Underthes锄e model锄d newserver thatsatisfiesthe system ch啪el镐sumptions，a