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首页> 外文会议>2012 International Symposium on Information Theory and its Applications. >HB#x266D; protocol for lightweight authentication; Its information theoretic indistinguishability against MITM attack watching reader's response
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HB#x266D; protocol for lightweight authentication; Its information theoretic indistinguishability against MITM attack watching reader's response

机译：HB ♭协议，用于轻量级身份验证；它针对MITM攻击的信息理论不可区分性，可观察读者的反应

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摘要

A lightweight authentication protocol, based on the hardness of the Learning Parity with Noise (LPN) problem, was first designed by Hopper and Blum (HB) in 2001. The protocol is practical for low-cost pervasive devices like RFID, and a lot of varieties were investigated for further improvements about communication complexity and about security. In this paper, on HB♭ protocol recently proposed as an augmented version avoiding many practical drawbacks in the previously existing versions, we show that the information theoretic indistinguishability can be safely proven against MITM attack in which the attacker can utilize information obtained by watching response of the RFID reader to the communication signals intervened by the attacker. Through the proof, we find that the property holds for rather wide parameter range whereas very tiny range of parameter was indicated as an concrete example in the previous paper where the protocol was originally proposed.
机译：Hopper和Blum（HB）于2001年首次设计了一种轻量级的身份验证协议，该协议基于“学习噪音与奇偶性（LPN）”问题的难度。该协议适用于低成本普及型设备，例如RFID，以及许多为了进一步改善通信复杂性和安全性，对各种产品进行了调查。在本文中，关于HB ♭协议，最近作为增强版本提出的协议避免了先前版本中的许多实际缺陷，我们证明了信息理论上的可区分性可以安全地证明针对MITM攻击，在这种情况下，攻击者可以利用通过观察RFID阅读器对攻击者干预的通信信号的响应而获得的信息。通过证明，我们发现该属性适用于相当宽的参数范围，而在最初提出该协议的前一论文中，该参数的很小范围作为一个具体示例被指出。

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