Xunjun Chen

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One of the major applications of Radio Frequency Identification (RFID) technology is in supply chain management as it promises to provide real-time visibility based on the function of track and trace. However, such an RFID-based track and trace system raises new security and privacy challenges due to the restricted resource of tags. In this paper, we refine(More)
Hummingbird-1 is a lightweight cryptographic algorithm appropriated for use within resource-constrained environments, which has 256-bit key and encrypt a 16-bitdata in one operation. In this paper, a cryptanalysis ofHummingbird-1 is given which shows a shortcut attack on the internal 16-bit block length, 64-bit key block cipher. The results indicate that(More)
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