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Concurrent error detection in semi-systolic dual basis multiplier over GF(2m) using self-checking alternating logic

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5 Author(s)
Chiou, C.W. ; Dept. of Comput. Sci. & Inf. Eng., Ching Yun Univ., Chungli, Taiwan ; Liang, W.-Y. ; Chang, H.W. ; Lin, J.-M.
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Multiplication is one of the most important finite field arithmetic operations in cryptographic computations. Recently, the attacks of fault-based cryptanalysis have been a critical threat to both symmetrical and asymmetrical cryptosystems. To prevent such kind of attacks, masking faulty signals and outputting only correct ciphers would be a feasible solution, especially suitable for finite field multiplication. Therefore a novel dual basis multiplier in GF(2m) with concurrent error detection capability using self-checking alternating logic is presented. The new self-checking alternating logic dual basis multiplier saves about 67% space complexity as compared with other existing dual basis multiplier with concurrent error detection capability that uses the parity checking method. The proposed dual basis multiplier takes almost as low as one extra clock cycle to achieve concurrent error detection capability. Furthermore, any existing faults in fault model are ensured to be detectable through at least one input in the authors% proposed scheme.

Published in:

Circuits, Devices & Systems, IET  (Volume:4 ,  Issue: 5 )

Date of Publication:

September 2010

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