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A framework for chosen IV statistical analysis of stream ciphers

In English

Författare

Summary, in English

Saarinen recently proposed a chosen IV statistical attack, called the $d$-monomial test, and used it to find eaknesses

in several proposed stream ciphers. In this paper we generalize this idea and propose a framework for chosen IV statistical attacks using a polynomial description. We propose a few new statistical attacks, apply them on some existing stream cipher proposals, and give some

conclusions regarding the strength of their IV initialization. In particular, we experimentally detected statistical weaknesses in some state bits of Grain-128 with full IV initialization as well as in the keystream of Trivium using an initialization reduced to 736 rounds from 1152 rounds. We also propose some stronger alternative initialization schemes with respect to these statistical attacks.

Publiceringsår

2007

Språk

Engelska

Sidor

268-281

Publikation/Tidskrift/Serie

Progress in Cryptology / Lecture Notes in Computer Science

Volym

4859

Dokumenttyp

Konferensbidrag

Förlag

Springer

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

8th International Conference on Cryptology in India INDOCRYPT 2007

Conference date

2007-12-09 - 2007-12-13

Conference place

Chennai, India

Status

Published

Forskningsgrupp

  • Informations- och kommunikationsteori

ISBN/ISSN/Övrigt

  • ISSN: 1611-3349
  • ISSN: 0302-9743
  • ISBN: 978-3-540-77025-1