Abstract

The security of the most of the existing strong designated verifier signature (SDVS) scheme are based on a single cryptographic hard problem. Although these schemes seem secure today, there is a possibility for an adversary to find a solution for this problem in the future and if this happens, then such SDVS schemes will no longer be secure. We develop a new SDVS scheme based on hybrid problems; factorization and discrete logarithm. The new developed scheme provides a greater security level than those previous designated SDVS schemes and satisfies the security properties and requirements of a SDVS scheme.

中文翻译：

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具有混合密码学难题的强指定验证者签名方案

摘要

大多数现有的强指定验证者签名（SDVS）方案的安全性都是基于单一的密码学难题。尽管这些方案在今天看起来很安全，但攻击者有可能在未来找到解决这个问题的方法，如果发生这种情况，那么这些 SDVS 方案将不再安全。我们基于混合问题开发了一种新的 SDVS 方案；分解和离散对数。新开发的方案提供了比以前指定的 SDVS 方案更高的安全级别，并满足 SDVS 方案的安全属性和要求。