| Summary: | 碩士 === 亞洲大學 === 資訊工程學系碩士班 === 97 === As the RFID technology becomes mature and its manufacturing cost is reduced constantly, this technology has already widely used in a lot of field such as supply chain management, entrance guard system, intelligent home appliances, electronic payment, production automation, etc. While RFID technology brings enormous commercial value, and the usage is simple and convenient, it threatens security and privacy of individuals and organizations. In this thesis, we introduce the problem in privacy and security. And then we proposed a new idea. We use Huffman coding to encode the tag ID. And we use the hash function to augment the data security. Our scheme provides each RFID tag to emit a pseudonym when receiving every reader's query. Therefore, it makes tracking activities and personal preferences of tag's owner impractical to provide the user's privacy. In addition, our proposed scheme provides not only high-security but also high-e±ciency.
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