多密钥中心的基于分级身份的签名方案 |
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引用本文:翟鸿雁,曾纪霞.多密钥中心的基于分级身份的签名方案[J].计算技术与自动化,2011,(1):130-132 |
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中文摘要:提出一个多密钥授权中心的基于分级身份的签名方案。 首先, 方案具有多个密钥中心,降低对密钥中心的信任假设、提高方案的健壮性; 其次,这个方案是可证明安全的,即在随机应答模型下,方案在给定身份和选择明文攻击下是不可伪造的;此外,新的基于分级身份签名方案是安全归约紧致的方案。 |
中文关键词:签名 基于身份 分级 多密钥中心 |
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An Efficient Hierarchical Identity Based Signature Scheme with Multiple Private Key Generators |
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Abstract:A new hierarchical identity based signature (HIBS) schemes is proposed. Contributions are many folds: First, there are multiple private key generators in the new scheme; Second, it is provably secure and has very good exact security against existential forgery for selective-ID attack in the standard model; Finally, security reduction of the scheme is very tight. |
keywords:signature identity based hierarchical multi PKG |
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