access icon free PUF-based encryption method for IC cards on-chip memories

© The Institution of Engineering and Technology
Received 29/03/2016, Published 31/08/2016
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This Letter presents a self-controlled physical unclonable function (PUF) circuit and its application in encrypting on-chip memories of IC bank cards. The PUF circuit is based on cross-coupled NAND gates. Voting and Hamming code address the stability of its outputs. The Monte Carlo simulation and field-programmable gate array board are used for verification. The Voting method improves the error rate 79%. The Hamming codes and convertor can correct every error bits of PUF outputs. The PUF outputs, data address and time-stamp are encrypted by SM4 (Chinese block cipher algorithm standard) to generate KEY. The data does XOR with the KEY.

Inspec keywords: cryptography; field programmable gate arrays; Hamming codes; NAND circuits; convertors; circuit stability; logic gates; Monte Carlo methods; smart cards

Other keywords: convertor; self-controlled physical unclonable function circuit; KEY generation; SM4; field-programmable gate array board; voting method; PUF-based encryption method; stability; Chinese block cipher algorithm standard; Hamming code; IC bank card on-chip memory; PUF circuit; XOR; cross-coupled NAND gate; Monte Carlo simulation

Subjects: Logic circuits; Logic and switching circuits; Monte Carlo methods; Memory circuits; Logic elements; Semiconductor storage; Convertors; Monte Carlo methods

References

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