Automated Unbounded Analysis of Cryptographic Constructions in the Generic Group Model

Automated Unbounded Analysis of Cryptographic Constructions in the Generic Group Model
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通用组模型中密码结构的自动无界分析

DOI:
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发表时间:
2016
期刊:
International Conference on the Theory and Application of Cryptographic Techniques
影响因子:
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通讯作者:
Benedikt Schmidt
Benedikt Schmidt
中科院分区:
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文献类型:
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作者:
Miguel Ambrona;G. Barthe;Benedikt Schmidt

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我们开发了一种新的方法来自动证明安全声明中的通用组模型,因为它们发生在实际的文件。我们首先定义i一个通用的语言来描述安全的定义,ii一类的逻辑公式,其特点是如何一个对手可以赢得,和iii翻译从安全的定义,这样的公式。我们证明了一个主定理,涉及到安全的建设存在一个解决方案的相关逻辑公式。此外,我们定义了一个约束求解算法,通过证明没有解决方案来证明构造的安全性。 我们实现我们的方法在一个完全自动化的工具,$$\mathsf {gga}^{\infty }$$gga∞i?工具,并使用它来验证不同的例子,从文献。结果改进了Barthe等人的工具,PTO '14,PKC'15:对于许多结构,$$\mathsf {gga}^{\infty }$gga∞i ^?成功地证明了标准的无限安全性,而Barthe的工具只能证明少量Oracle查询的安全性。
We develop a new method to automatically prove security statements in the Generic Group Model as they occur in actual papers. We start by defining i a general language to describe security definitions, ii a class of logical formulas that characterize how an adversary can win, and iii a translation from security definitions to such formulas. We prove a Master Theorem that relates the security of the construction to the existence of a solution for the associated logical formulas. Moreover, we define a constraint solving algorithm that proves the security of a construction by proving the absence of solutions. We implement our approach in a fully automated tool, the $$\mathsf {gga}^{\infty }$$gga∞i¾?tool, and use it to verify different examples from the literature. The results improve on the tool by Barthe et al. CRYPTO'14, PKC'15: for many constructions, $$\mathsf {gga}^{\infty }$$gga∞i¾?succeeds in proving standard unbounded security, whereas Barthe's tool is only able to prove security for a small number of oracle queries.
DOI: 10.1007/s00145-014-9196-7
发表时间: 2010-08
影响因子: 3
作者:
Masayuki Abe;Georg Fuchsbauer;Jens Groth;Kristiyan Haralambiev;Miyako Ohkubo
通讯作者: Masayuki Abe;Georg Fuchsbauer;Jens Groth;Kristiyan Haralambiev;Miyako Ohkubo