@misc{13593,
  keywords = {Stream Cipher, Advanced Encryption Standard, LEX},
  author = {Muhammad Z{\textquoteright}aba and H{\r a}vard Raddum and Leonie Simpson and Ed Dawson and Matt Henricksen and Kenneth Wong},
  title = {Algebraic Analysis of LEX},
  abstract = {LEX is a stream cipher that progressed to Phase 3 of the eSTREAM stream cipher project. In this paper, we show that the security of LEX against algebraic attacks relies on a small equation system not being solvable faster than exhaustive search. We use the byte leakage in LEX to construct a system of 21 equations in 17 variables. This is very close to the require- ment for an efficient attack, i.e. a system containing 16 variables. The system requires only 36 bytes of keystream, which is very low.},
  year = {2009},
  journal = {Australasian Information Security Conference, AISC2009},
  volume = {98},
  pages = {33-45},
  publisher = {ACS},
  issn = {1445-1336},
  isbn = {978-1-920682-79-8},
  url = {http://crpit.com/abstracts/CRPITV98RezaZaba.html},
}