摘要：

将前向安全的思想与代理多重数字签名结合，提出一个前向安全的代理多重签名方案，该方案不仅满足一般代理多重签名方案的性质，而且具有前向安全性。在强RSA假定、计算式Diffie-Hellman问题及有限域上离散对数问题难解的假设下，该方案具有良好的安全性。

关键词: 代理多重签名, 前向安全, 强RSA假定, Diffie-Hellman问题

Abstract:

This paper proposes a forward security proxy multi-signature scheme on the basis of the forward-security idea and proxy multi-signature schemes. The new scheme satisfies security properties of general proxy multi-signature schemes and has forward-security. Under the strong RSA assumption, Diffie-Hellman problem and discrete logarithm problem over finite field, the new scheme has good forward security.

Key words: proxy multi-signature, forward security, strong RSA assumption, Diffie-Hellman problem

中图分类号: 

• TP309