Javascript verkar inte påslaget? - Vissa delar av Lunds universitets webbplats fungerar inte optimalt utan javascript, kontrollera din webbläsares inställningar.
Du är här

Analysis of Xorrotation With Application to an HC-128 Variant

  • Willy Susilo
  • Yi Mu
  • Jennifer Seberry
Publiceringsår: 2012
Språk: Engelska
Sidor: 419-425
Publikation/Tidskrift/Serie: LNCS
Volym: 7372
Dokumenttyp: Konferensbidrag
Förlag: Springer


Many cryptographic primitives rely on word rotations (R) and xor (X) to provide proper mixing. We give RX-system mixing a very general treatment and deduce some theoretical results on related probability distributions.

Pure RX-systems are easy to break, so we show how to apply our theory to a more complex system that uses RX operations in combination with S-boxes.

We construct an impractical (keystream complexity 2^{90.9}), but new and non-trivial distinguisher for a variant of HC-128 for which modular addition is replaced with xor.


  • Electrical Engineering, Electronic Engineering, Information Engineering
  • RX
  • probability distribution
  • stream cipher
  • HC-128
  • cryptanalysis
  • distinguisher


ACISP 2012
  • Crypto and Security-lup-obsolete
  • ISBN: 978-3-642-31447-6

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen