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Sondre Rønjom

Associate professor II
  • E-mailSondre.Ronjom@uib.no
  • Phone+47 55 58 40 19
  • Visitor Address
    HIB - Thormøhlensgt. 55
  • Postal Address
    Postboks 7803
    5020 Bergen
Journal articles
  • Rønjom, Sondre. 2017. Improving algebraic attacks on stream ciphers based on linear feedback shift register over \mathbb {F}_{2^k}. Designs, Codes and Cryptography.
  • Gong, Guang; Rønjom, Sondre; Helleseth, Tor; Hu, Honggang. 2011. Fast discrete Fourier spectra attacks on stream ciphers. IEEE Transactions on Information Theory. 57: 5555-5565. doi: 10.1109/TIT.2011.2158480
  • Rønsom, Sondre; Raddum, Håvard. 2008. On the Number of Linearly Independent Equations Generated by XL. Lecture Notes in Computer Science. 5203: 239-251.
  • Rønjom, Sondre; Gong, Guang; Helleseth, Tor. 2007. On attacks on filtering generators using linear subspace structures. Lecture Notes in Computer Science. 4893: 204-217.
  • Rønjom, Sondre; Gong, Guang; Helleseth, Tor. 2007. A survey of recent attacks on the filter generator. Lecture Notes in Computer Science. 4851: 7-17.
  • Rønjom, Sondre; Helleseth, Tor. 2007. Attacking the filter generator over GF(2^m). Lecture Notes in Computer Science. 4547: 264-275.
  • Rønjom, Sondre; Helleseth, Tor. 2007. The linear vector space spanned by the nonlinear filter generator. Lecture Notes in Computer Science. 4893: 169-183.
  • Rønjom, Sondre; Helleseth, Tor. 2007. A new attack on the filter generator. IEEE Transactions on Information Theory. 53: 1752-1758. doi: 10.1109/TIT.2007.894690
Reports and theses
  • Rønjom, Sondre. 2009. Cryptanalysis of ciphers over finite cyclic groups. 180 pages.
Book sections
  • Helleseth, Tor; Rønjom, Sondre. 2011. Simplifying algebraic attacks with univariate analysis. Artikkel. In:
    • Young-Han, Kim. 2011. Proceedings of Information Theory and Applications Workshop (ITA), 2011. IEEE Press. 540 pages. ISBN: 978-1-4577-0360-7.
  • Helleseth, Tor; Hojsik, Michal; Rønjom, Sondre. 2009. Algebraic Attacks on Filter and Combiner Generator. Kapittel, pages 39-48. In:
    • Preneel, Bart; Dodunekov, Stefan; Rijmen, Vincent; Nikova, Svetla. 2009. Enhancing Cryptographic Primitives with Techniques from Error Correcting Codes. IOS Press. 273 pages. ISBN: 978-1-60750-002-5.

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