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文中给出基于背包和有限域上圆锥曲线相结合的代理签名方案,并具体分析了该代理签名方案的安全性是基于求解有限域上圆锥曲线的离散对数问题和求解变形的背包问题,只有这两个问题都被攻破了,才能破解该代理签名方案,所以该代理签名方案具有很强的安全性。
In this paper, a proxy signature scheme based on the combination of backpack and conic in finite field is given. The security of this proxy signature scheme is analyzed specifically based on solving the discrete logarithm problem of conic curve over finite field and the knapsack problem of solving the deformation. These two problems have been compromised, in order to crack the proxy signature scheme, so the proxy signature scheme has a strong security.