Redundant Metering For Integrity With Information-Theoretic Confidentiality
2010 IEEE 1ST INTERNATIONAL CONFERENCE ON SMART GRID COMMUNICATIONS (SMARTGRIDCOMM)(2010)
摘要
Redundant metering is frequently used to verify the integrity of billing data reported by advanced metering infrastructure, but the redundant measurement introduces a potential confidentiality leak. We propose a way to encode the redundant measurement at a bit rate below its entropy, so that it cannot be decoded from the encoded bits alone. In this way, we guarantee information-theoretic confidentiality, regardless of the computational power of an eavesdropper. We provide practical Slepian-Wolf codes to realize security of up to 5 bit/sample for 8-bit samples based on actual power metering experiments.
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关键词
home automation,entropy,source coding,wireless communication,redundancy,encoding,decoding,data integrity
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