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arXiv 0906.2947cs.CR
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对一个基于OT的盲签名方案的攻击

Attacking an OT-Based Blind Signature Scheme

Stylianos Basagiannis, Panagiotis Katsaros, Andrew Pombortsis

摘要:

本文描述了对文献[1]中提出的一个基于遗忘转移的盲签名方案的攻击。具有产生特定范围随机数的原始能力的攻击者,在表现出部分MITM行为的同时,能够破坏协议参与者之间的通信。该攻击非常有效,因为它会导致协议通信损坏,并且具有听起来最小的计算成本。我们提出了一个解决方案来修复安全漏洞。

英文摘要:

In this paper, we describe an attack against one of the Oblivious-Transfer-based blind signatures scheme, proposed in [1]. An attacker with a primitive capability of producing specific-range random numbers, while exhibiting a partial MITM behavior, is able to corrupt the communication between the protocol participants. The attack is quite efficient as it leads to a protocol communication corruption and has a sound-minimal computational cost. We propose a solution to fix the security flaw.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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