Cryptanalysis of Strong Designated Verifier Signature Scheme with Non-delegatability and Non-transferability
Cryptanalysis of Strong Designated Verifier Signature Scheme with Non-delegatability and Non-transferability
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DOI：
10.1587/transfun.e95.a.259
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Mingwu Zhang;T. Takagi;Bo Yang;Fagen Li
中科院分区：
文献类型：
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作者：
Mingwu Zhang;T. Takagi;Bo Yang;Fagen Li
强指定验证者签名方案（SDVS）允许验证者私下检查签名的有效性。最近，Huang等人首次在一个强安全模型中构造了一个基于身份的SDVS方案（HYWS），该方案具有签名者身份的不可伪造性、不可转移性、不可委托性和隐私性等安全特性。在本文中，我们表明，他们的计划不提供声称的属性。分析表明，HYWS方案既不能抵抗指定验证者的签名伪造，也不能提供模拟不可伪造性，违背了不可伪造性、不可委托性和不可转移性等安全性质。
Strong designated verifier signature scheme (SDVS) allows a verifier to privately check the validity of a signature. Recently, Huang et al. first constructed an identity-based SDVS scheme (HYWS) in a stronger security model with non-interactive proof of knowledge, which holds the security properties of unforgeability, non-transferability, non-delegatability, and privacy of signer's identity. In this paper, we show that their scheme does not provide the claimed properties. Our analysis indicates that HYWS scheme neither resist on the designated verifier signature forgery nor provide simulation indistinguishability, which violates the security properties of unforgeability, non-delegatability and non-transferability.