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arXiv 1406.3013quant-ph
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安全定位和非本地关联

Secure positioning and non-local correlations

Muhammad Nadeem

摘要:

最近,安全位置验证问题已经被广泛地分析在一个正式的概念,即远程验证者发送加密的挑战连同解密信息的证明者。然而,目前已知的是,所有现有的位置验证方案是不安全的,安全定位是不可能的。我们在这里提出了一个不同的概念,位置验证,远距离验证者确定的行动,证明者通过非本地的相关性产生的本地测量在现场的证明。该方案保证了安全定位,即使验证者没有任何预先共享的数据与证明者,位置是唯一的凭证证明。我们提出的方案是安全的,在一般情况下,特别是规避已知的量子攻击的基础上瞬时非本地计算。该方案使验证者能够以非常高的概率识别不诚实的证明者,其中n是使用的纠缠对的数量。

英文摘要:

Recently, the problem of secure position-verification has been extensively analyzed in a formal notion where distant verifiers send encrypted challenge along with the decryption information to the prover. However, currently it is known that all the existing position-verification scheme are insecure and secure positioning is impossible. We propose here a different notion for position-verification where distant verifiers determine the actions of the prover through non-local correlations generated by local measurements at the provers site. The proposed scheme guarantees secure positioning even if the verifiers do not have any pre-shared data with the prover, position is the only credential of the prover. Our proposed scheme is secure in general and evades known quantum attacks based on instantaneous non-local computations in particular. The scheme enables verifiers to identify dishonest provers with very high probability , where n is the number of entangled pairs used.

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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