Analysis and design of stream ciphers
Analysis and design of stream ciphers
Learning decision trees using the Fourier spectrum
STOC '91 Proceedings of the twenty-third annual ACM symposium on Theory of computing
CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
On Some Properties of the Shrinking Generator
Designs, Codes and Cryptography
Handbook of Applied Cryptography
Handbook of Applied Cryptography
Shift Register Sequences
Simple construction of almost k-wise independent random variables
SFCS '90 Proceedings of the 31st Annual Symposium on Foundations of Computer Science
The linear complexity of the self-shrinking generator
IEEE Transactions on Information Theory
An efficient cryptosystem Delta for stream cipher applications
Computers and Electrical Engineering
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The shrinking generator is a keystream generator which is good for stream ciphers in wireless mobile communications, because it has simple structure and generates a keystream faster than other generators. Nevertheless, it has a serious disadvantage that its keystream is not balanced if they use primitive polynomials as their feedback polynomials. In this paper, we present a method to construct balanced shrinking generators by modifying the structure of the shrinking generator and analyze their cryptographical properties including period, balancedness, linear complexity, and probability distribution. Experimental results show that the keystreams of these generators have larger linear complexity than that of the shrinking generator, provided that the sizes of LFSRs are fixed.