Paper 2015/855

A new framework for keystream generators against Correlation, Linear and Distinguishing Attacks

GANESH YELLAPU

Abstract

Designing a keystream generator which utilizes Linear Feedback Shift Registers (LFSRs) against correlation, linear attacks is a highly challenging task. In this paper, a new framework for keystream gen- erators is proposed. It is comprised of a set of Linear Feedback Shift Registers (LFSRs), a Multiplicative Congruential Generator (MCG), a vector linear function and, a Boolean function which outputs the keystream. The framework is more generally discussed against corre- lation attacks, linear attacks and distinguishing (linear) attacks. It is shown that such attacks which are applicable to LFSR based keystream generators are not possible on the proposed framework.

Metadata
Available format(s)
-- withdrawn --
Publication info
Preprint. MINOR revision.
Keywords
Stream ciphers
Contact author(s)
ganeshyellapu @ bel co in
History
2015-10-07: withdrawn
2015-09-06: received
See all versions
Short URL
https://ia.cr/2015/855
License
Creative Commons Attribution
CC BY
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