摘要： 提出了一个新的（t0, t, n）门限签名方案。该方案适用于签名成员中存在特殊 成员的情形。与已有的（t, n）门限签名和（ti, t, n）门限签名相比，该方案具有如下特 点：(1) 系统中存在特殊与普通两类成员，他们在签名中的作用不同；(2) 当参与签名的一 般成员达到绝对多数时，可强行对消息签名。

关键词: (t0,t,n)门限, 特殊成员, 强行签名

Abstract: This paper proposes a new(t0, t, n)threshold signature scheme. Th e scheme suits the situation that there exist special members among signers. Com paring to existing(t, n)threshold signatures and(ti, t, n)threshold signatur es, the scheme has advantages as follows: (1) There are two kinds of members, sp ecial members and common members in this system, their effects are different in the signature stage; (2) A signature may be generated by force, when absolute ma jority common members want to sign a message, though no special members takes pa rt in the signature.

中图分类号: 

• TP393.08