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A Middleware Design for Block Cipher Seamless Connected into Stream Cipher Mode

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5 Author(s)
Lan Luo ; Sch. of Comput. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu ; ZhiGuang Qin ; ShiJie Zhou ; ShaoQuan Jiang
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In order to connect the block cipher into stream cipher mode, the middleware about output of the block cipher was designed according to flexible and scalable principle. The byte wise operation can be paralleled to more large scale such as 32 bit wise or 16 bit wise. Secure of this design was demonstrated by the block cipher algorithm itself and the complexity of mask algorithm. The middleware model and the block cipher algorithm model are seamless connected because of standardized block size and output size. Furthermore, such standardized size can be actively changed with the application environments. The approach of this paper is that a kind of complex mask was used in block cipher algorithm when embedded it into stream operation mode such as Cipher Feedback Mode, Output Feedback Mode and Counter Mode.

Published in:

Intelligent Information Hiding and Multimedia Signal Processing, 2008. IIHMSP '08 International Conference on

Date of Conference:

15-17 Aug. 2008