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arXiv 0707.0691quant-ph
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量子熵安全与近似量子加密

Quantum entropic security and approximate quantum encryption

Simon Pierre Desrosiers, Frédéric Dupuis

摘要:

我们提出了充分概括的熵安全性和熵不可逆性的量子世界,没有假设,但限制的知识的对手。这个极限是用Renato Renner引入的量子条件最小熵来量化的。证明了这两个安全定义之间的等价性。我们还提供了两个不同的密码在这个模型中的安全性证明和证明的下限的密钥长度所需的任何这样的密码。这些密码一般化现有的方案近似量子加密的熵安全模型。

英文摘要:

We present full generalisations of entropic security and entropic indistinguishability to the quantum world where no assumption but a limit on the knowledge of the adversary is made. This limit is quantified using the quantum conditional min-entropy as introduced by Renato Renner. A proof of the equivalence between the two security definitions is presented. We also provide proofs of security for two different cyphers in this model and a proof for a lower bound on the key length required by any such cypher. These cyphers generalise existing schemes for approximate quantum encryption to the entropic security model.

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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