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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