PERIDOT码:用置换取代标识符、序列号和随机数
PERIDOT Codes: Replacing Identifiers, Sequence Numbers and Nonces with Permutations
摘要:
在某些低功耗广域网中,标识符和序列号构成了协议开销的很大一部分。认证和加密方案中对密码随机数的要求通常需要过长的序列号,这导致每个传输分组的能耗增加。本文提出了一种新的PERIDOT编码方案。它用一个代码取代了标识符和序列号,接收器可以根据这个代码高置信度地识别发射器。PERIDOT基于分配给发射机的特殊构造的整数排列。PERIDOT码的性能上的上限和构造特别合适的排列的方法。在实践中,PERIDOT可以显著增加随机数重用之间的间隔,同时降低功耗。
英文摘要:
Identifiers and sequence numbers make up a large part of the protocol overhead in certain low-power wide-area networks. The requirement for cryptographic nonces in authentication and encryption schemes often demands excessively long sequence numbers, which leads to an increase in energy consumption per transmitted packet. In this paper, the novel PERIDOT coding scheme is proposed. It replaces identifiers and sequence numbers with a code, based on which receivers can identify transmitters with high confidence. PERIDOT is based on specially constructed integer permutations assigned to transmitters. An upper bound on the performance of PERIDOT codes is provided and methods for constructing particularly suitable permutations are presented. In practice, PERIDOT can significantly increase intervals between nonce reuses and, at the same time, reduce power consumption.
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