Fail-Stop Signatures for Multiple-Signers: Definitions, Constructions, and Their Extensions
Fail-Stop Signatures for Multiple-Signers: Definitions, Constructions, and Their Extensions
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DOI：
10.2197/ipsjjip.24.275
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Nobuaki Kitajima;Naoto Yanai;T. Nishide;Goichiro Hanaoka;E. Okamoto
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作者：
Nobuaki Kitajima;Naoto Yanai;T. Nishide;Goichiro Hanaoka;E. Okamoto
失败停止签名（FSS）通过允许签名者提供伪造证明，为签名者提供安全，防止计算上无限的对手。传统的FSS方案适用于单签名者设置，但在现实世界中，存在需要多个签名者的副签名（例如，银行、用户和消费者之间的签名）的情况。在这项工作中，我们提出了一个捕获多签名者设置的FSS框架，并称之为原始故障停止多重签名（FSMS）。我们利用Pfitzmann提出的捆绑同态构造了FSMS的一般结构，然后根据因子分解假设给出了FSMS方案的可证明安全实例化。我们提出的方案也可以扩展到故障停止聚合签名（FSAS）。
Fail-stop signatures (FSS) provide the security for a signer against a computationally unbounded adversary by enabling the signer to provide a proof of forgery. Conventional FSS schemes are for a single-signer setting, but in the real world, there is a case where a countersignature of multiple signers (e.g., a signature between a bank, a user, and a consumer) is required. In this work, we propose a framework of FSS capturing a multi-signer setting and call the primitive fail-stop multisignatures (FSMS). We propose a generic construction of FSMS via the bundling homomorphisms proposed by Pfitzmann and then propose a provably secure instantiation of the FSMS scheme from the factoring assumption. Our proposed schemes can be also extended to fail-stop aggregate signatures (FSAS).