基于环Z_n上的圆锥曲线的多秘密共享方案  

Multi-Secret Sharing Scheme Based on Conic Carve over Zn

作　　者：闫鸿滨[1] 

机构地区：[1]南通职业大学电子信息工程学院,江苏南通226007

出　　处：《计算机仿真》2014年第5期171-174,共4页Computer Simulation

基　　金：国家自然科学基金项目(60773035);四川省学术和技术带头人资助项目(08226056)

摘　　要：密钥共享技术是密钥管理中的关键技术之一,针对基于有限群上计算离散对数的难度和单向函数求逆的难题,提出了一种基于环Z_n上的圆锥曲线公钥密码体系的多秘密共享方案,利用上述方案,可在系统成员中可以方便、安全、有效地共享多重密钥;根据需要,系统可以定期更新共享的秘密,具有动态安全性;可以根据秘密的不同等级动态地调整其恢复时的门限值,可以高效地检测秘密管理者与分享者的欺作行为,对共享者进行身份认证,验证子密钥的正确性。Secret sharing technology is one of critical technologies about key management. An efficient multilevel -secret sharing scheme was designed on the public-key cryptography of conic curve over Zn. The scheme made comprehensively use of difficulties in computing discrete logarithm and the intractability of reversing the one-way Hash function. In the scheme, participants can share multiple secrets and compute sub-secret for rebuilding efficiently and securely. As for the multi- secret of the different grade, the multi- secret distributer can dynamically adjust the threshold value ; cheating of the dealer or any participant can he detected efficiently; identity authentication of participant can be provided; and the shadows of key can be validated.

关 键 词：圆锥曲线 多重密钥共享 离散对数 身份认证 

分 类 号：TN393.08[电子电信—物理电子学]