The New Key-Stream Generator Based on the OFB Mode of AES

Hui Shi; Jian Wei Lu; Yu Feng Ji; Chao Wu; Jing Gong; Yuan Qing Deng

doi:10.4028/www.scientific.net/AMM.644-650.2768

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 644-650The New Key-Stream Generator Based on the OFB Mode...

The New Key-Stream Generator Based on the OFB Mode of AES

Abstract:

The key-stream generator is the most important algorithm component of the stream cipher and the security of the stream cipher is based on the property of the key-stream generator. At the present, it is still an important development direction of the stream cipher algorithm that the high performance key-stream generators are constructed with complex block cipher algorithms. This paper puts forward the new type of the key-stream generator based on the AES algorithm. This method is based on the OFB mode of the AES algorithm, combined with the variable-step feedback shift. Then the paper analyses the randomness of the key-stream produced by the new key-stream generator. This new key-stream generator really improves the cryptographic properties of the key stream generator and to enhance the security of stream cipher effectively.

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Periodical:

Applied Mechanics and Materials (Volumes 644-650)

Pages:

2768-2771

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.2768

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Cite this paper

Online since:

September 2014

Authors:

Hui Shi*, Jian Wei Lu, Yu Feng Ji, Chao Wu, Jing Gong, Yuan Qing Deng

Keywords:

AES, Feedback Shift Step, Key-Stream Generator, OFB Mode, Randomness Test

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* - Corresponding Author

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