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arXiv 1507.07091cs.ITmath.IT
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具有广义反馈的窃听信道:安全通信和密钥生成

The Wiretap Channel with Generalized Feedback: Secure Communication and Key Generation

Germán Bassi, Pablo Piantanida, Shlomo Shamai

摘要:

众所周知,反馈并不能增加点对点无记忆信道的容量,然而,它在保密通信中的作用还没有完全了解。在这项工作中,一个可实现的计划窃听信道与广义反馈。该方案利用反馈信号生成合法用户之间的共享秘密密钥,在比特级加密待发送的消息。一类信道的容量的新结果,以及一些新的见解的秘密密钥协议问题。此外,该方案恢复了以前报道的速率区域从文献中,因此它可以被看作是一个概括,统一了该领域的几个结果。

英文摘要:

It is a well-known fact that feedback does not increase the capacity of point-to-point memoryless channels, however, its effect in secure communications is not fully understood yet. In this work, an achievable scheme for the wiretap channel with generalized feedback is presented. This scheme, which uses the feedback signal to generate a shared secret key between the legitimate users, encrypts the message to be sent at the bit level. New capacity results for a class of channels are provided, as well as some new insights into the secret key agreement problem. Moreover, this scheme recovers previously reported rate regions from the literature, and thus it can be seen as a generalization that unifies several results in the field.

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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