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| Differential Fault Analysis on the Stream Cipher LEX |
| ZHANG Zhong-Ya, GUAN Jie |
| (Electronic Technology Institute, Information Engineering University, Zhengzhou 450004, China) |
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Abstract A differential fault analysis on stream cipher LEX (Leak Extraction) based on bit-oriented random fault model is shows that it needs about 96 pairs of correct and faulty keystream and 232 simple operations or 120 pairs of correct and faulty key-stream and 216 simple operations to recover all the 128 bit master key. The result shows that LEX is vulnerable to differential fault analysis.
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Received: 08 September 2011
Published: 28 June 2012
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