代理多重门限签名方案  

Threshold proxy multi-signature scheme

作　　者：于静[1] 李志慧[2] 

机构地区：[1]西安工业大学北方信息工程学院基础部数学教研室,西安710025 [2]陕西师范大学数学与信息科学学院,西安710062

出　　处：《计算机工程与应用》2015年第6期69-71,83,共4页Computer Engineering and Applications

基　　金：国家自然科学基金(No.11271237);院长基金项目(No.YZ1336)

摘　　要：代理多重签名可以实现一个代理签名同时代表多个原始签名者,门限签名方案,签名的生成不需要所有成员的参与只要部分成员参与就可形成有效的签名,将这两种签名方式结合,构造一个代理多重门限签名方案。该方案既具有代理权的多重性,又具有门限的灵活性和安全性。同时,利用前向安全的特性,对代理密钥进行时间性的更新,既保证了方案的安全性,又对代理权的有效时间进行控制。Proxy multi-signature schemes can be implemented a proxy signature on behalf of multiple original signers.Threshold signature scheme does not require the participation of all members to form a valid signature. As long as most of the members participate, the signature is valid. This paper discusses a multi-threshold proxy signature scheme which is a combination of the two signature ways mentioned above. The program has both the multiplicity of agency, but also has the flexibility of threshold. Meanwhile, use of forward secure features, the proxy secret key for the timing of updates, both to ensure the security of the scheme, and also can control the proxy signature time of the proxy signer.

关 键 词：代理签名方案 门限签名 多重加密 前向安全 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]