Weaknesses in HENKOS Stream Cipher

Prasanth Kumar Thandra; S. A. V.  Satya Murty; R Balasubramanian

Paper 2008/353

Weaknesses in HENKOS Stream Cipher

Prasanth Kumar Thandra, S. A. V. Satya Murty, and R Balasubramanian

Abstract

HENKOS is a synchronous stream cipher posted by Marius Oliver Gheorghita to eprint. In this paper we are going to present some weaknesses in the cipher. We first present a chosen IV attack which is very straight forward attack on the cipher. Second we present a group of weak keys.

Metadata

Available format(s): PDF
Category: Secret-key cryptography
Publication info: Published elsewhere. Unknown where it was published
Keywords: synchronous stream ciphers weak keys related keys chosen IV attack.
Contact author(s): prasanth @ igcar gov in
History: 2008-08-13: received
Short URL: https://ia.cr/2008/353
License: CC BY

BibTeX

@misc{cryptoeprint:2008/353,
      author = {Prasanth Kumar Thandra and S. A. V.  Satya Murty and R Balasubramanian},
      title = {Weaknesses in HENKOS Stream Cipher},
      howpublished = {Cryptology ePrint Archive, Paper 2008/353},
      year = {2008},
      note = {\url{https://eprint.iacr.org/2008/353}},
      url = {https://eprint.iacr.org/2008/353}
}