Computer Science ›› 2015, Vol. 42 ›› Issue (2): 127-130.doi: 10.11896/j.issn.1002-137X.2015.02.027

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Research on Hardware Optimization Implementation of TWINE

LI Lang, ZOU Yi, HE Wei-wei, LI Ren-fa and LIU Bo-tao   

  • Online:2018-11-14 Published:2018-11-14

Abstract: With the development of IOT,effective implement of lightweight cryptographic algorithms becomes a hot topic in recent years.TWINE encryption algorithm was proposed in 2011.It is a lightweight block cipher algorithm.TWINE is suitable for the security of encryption in the environment of the Internet of Things.The same round operation is achieved only once and repeated calls.TWINE algorithm has 36 operations in which the first 35 operations can be called repeatedly for the same structure.The original algorithm can be repeated up to 35 repeat calls,because the 36th operation has less confusing compared to the first 35 operations.36 cycle operation is called repeatedly.After that, a block is added.It makes the 36th operation of TWINE can not be re-implemented.A relatively simple algorithm of confusion inverse is added which makes the module highly multiplexed.FPGA experimental results show that area saves 2204 slices and speed increases 5 times than original TWINE.These can provide a reference to encryption researcher.

Key words: TWINE,Lightweight cryptographic algorithms,Optimization,FPGA implementation

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