Shaker, N., Shehata, K., Elshafiey, T., Alshobaki, A. (2006). A PROPOSED ARCHITECTURE FOR STREAM CIPHERS USING LFSR AND FCSR. test, 5(5th International Conference on Electrical Engineering ICEENG 2006), 1-10. doi: 10.21608/iceeng.2006.33681
N. Shaker; K. Shehata; T. Elshafiey; A. Alshobaki. "A PROPOSED ARCHITECTURE FOR STREAM CIPHERS USING LFSR AND FCSR". test, 5, 5th International Conference on Electrical Engineering ICEENG 2006, 2006, 1-10. doi: 10.21608/iceeng.2006.33681
Shaker, N., Shehata, K., Elshafiey, T., Alshobaki, A. (2006). 'A PROPOSED ARCHITECTURE FOR STREAM CIPHERS USING LFSR AND FCSR', test, 5(5th International Conference on Electrical Engineering ICEENG 2006), pp. 1-10. doi: 10.21608/iceeng.2006.33681
Shaker, N., Shehata, K., Elshafiey, T., Alshobaki, A. A PROPOSED ARCHITECTURE FOR STREAM CIPHERS USING LFSR AND FCSR. test, 2006; 5(5th International Conference on Electrical Engineering ICEENG 2006): 1-10. doi: 10.21608/iceeng.2006.33681

A PROPOSED ARCHITECTURE FOR STREAM CIPHERS USING LFSR AND FCSR

The International Conference on Electrical Engineering
Article 75, Volume 5, 5th International Conference on Electrical Engineering ICEENG 2006, May 2006, Pages 1-10    PDF (259.39 K)
Document Type: Original Article
DOI: 10.21608/iceeng.2006.33681
Authors
N. Shaker1; K. Shehata2; T. Elshafiey3; A. Alshobaki4
1Comsec. Consultant.
2Prof. AAST, Cairo – Egypt.
3Assisted Prof., MSA, Cairo – Egypt.
4Graduate student, AAST, Alex. – Egypt.
Abstract
ABSTRACT
A major class of applied stream cipher systems makes use of combining a number of Linear
Feed Back Shift Registers (LFSR) to achieve reasonable cryptographic specifications. The
Feed back with carry shift register (FCSR) is a new device to be used in the structure of
stream ciphers in addition to or as a substitute for the LFSR. In this paper, we investigate the
advantages and limitations of combining both LFSR and FCSR in one stream cipher design.
A proposed novel design for a stream cipher architecture – using both LFSR and FCSR –
will also be introduced and its cryptographic specifications will be evaluated.
Keywords
Encryption; Stream Cipher; Linear Complexity; 2-adic Complexity; Algebraic Degree and Correlation Immunity
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