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J. Semicond. > 2016, Volume 37?>?Issue 7?> 075003

SEMICONDUCTOR INTEGRATED CIRCUITS

A dual-mode secure UHF RFID tag with a crypto engine in 0.13-μm CMOS

Tao Yang, Linghao Zhu, Xi Tan, Junyu Wang, Lirong Zheng and Hao Min

+ Author Affiliations

 Corresponding author: Wang Junyu, Email: junyuwang@fudan.edu.cn

DOI: 10.1088/1674-4926/37/7/075003

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Abstract: An ultra-high-frequency (UHF) radio frequency identification (RFID) secure tag chip with a non-crypto mode and a crypto mode is presented. During the supply chain management, the tag works in the non-crypto mode in which the on-chip crypto engine is not enabled and the tag chip has a sensitivity of -12.8 dBm for long range communication. At the point of sales (POS), the tag will be switched to the crypto mode in order to protect the privacy of customers. In the crypto mode, an advanced encryption standard (AES) crypto engine is enabled and the sensitivity of the tag chip is switched to +2 dBm for short range communication, which is a method of physical protection. The tag chip is implemented and verified in a standard 0.13-μm CMOS process.

Key words: UHF, RFID, tag, security



[1]
EPCglobal. Radio-frequency identity protocols class-1 generation-2 UHF RFID protocol for communications at 860 MHz-960 MHz version 1.2.02004
[2]
[3]
Impinj. Monza 4 Tag Chip Datasheet
[4]
EPCglobal. Radio-Frequency identity protocols Generation-2 UHF RFID specification for RFID air interface protocol for communications at 860 MHz-960 MHz Version 2.0.0 Ratified 2013
[5]
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.  Tag received power versus communication distance

.  System architecture of the proposed tag

.  The schematics of the rectifier and the shunt regulator

.  Simulated output DC voltage with $R_{\rm L}$ = 50 k $\Omega $ .

.  (a) ASK demodulator. (b) Hysteresis comparator.

.  The digital baseband in the tag IC.

.  Die photo of the dual-mode secure tag.

.  The measured output DC voltages of the tag in the non-crypto mode and the crypto mode with input power sweep.

.  Link timing in the non-crypto mode.

.  The switching action from the non-crypto mode to the crypto mode.

.  The measured link timing in the crypto mode.

Table 1.   The Crypto_En command structure.

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Table 2.   Performance summary and comparison.

DownLoad: CSV
[1]
EPCglobal. Radio-frequency identity protocols class-1 generation-2 UHF RFID protocol for communications at 860 MHz-960 MHz version 1.2.02004
[2]
[3]
Impinj. Monza 4 Tag Chip Datasheet
[4]
EPCglobal. Radio-Frequency identity protocols Generation-2 UHF RFID specification for RFID air interface protocol for communications at 860 MHz-960 MHz Version 2.0.0 Ratified 2013
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]

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    History

    Received: 24 December 2015 Revised: Online: Published: 01 July 2016

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      Tao Yang, Linghao Zhu, Xi Tan, Junyu Wang, Lirong Zheng, Hao Min. A dual-mode secure UHF RFID tag with a crypto engine in 0.13-μm CMOS[J]. Journal of Semiconductors, 2016, 37(7): 075003. doi: 10.1088/1674-4926/37/7/075003 ****T Yang, L H Zhu, X Tan, J Y Wang, L R Zheng, H Min. A dual-mode secure UHF RFID tag with a crypto engine in 0.13-μm CMOS[J]. J. Semicond., 2016, 37(7): 075003. doi: 10.1088/1674-4926/37/7/075003.
      Citation:
      Tao Yang, Linghao Zhu, Xi Tan, Junyu Wang, Lirong Zheng, Hao Min. A dual-mode secure UHF RFID tag with a crypto engine in 0.13-μm CMOS[J]. Journal of Semiconductors, 2016, 37(7): 075003. doi: 10.1088/1674-4926/37/7/075003 ****
      T Yang, L H Zhu, X Tan, J Y Wang, L R Zheng, H Min. A dual-mode secure UHF RFID tag with a crypto engine in 0.13-μm CMOS[J]. J. Semicond., 2016, 37(7): 075003. doi: 10.1088/1674-4926/37/7/075003.

      A dual-mode secure UHF RFID tag with a crypto engine in 0.13-μm CMOS

      DOI: 10.1088/1674-4926/37/7/075003

      • State Key Laboratory of ASIC & System, Fudan University, Shanghai 201203, China

      More Information
      • Corresponding author: Wang Junyu, Email: junyuwang@fudan.edu.cn
      • Received Date: 2015-12-24
      • Accepted Date: 2016-01-25
      • Published Date: 2016-07-25

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