Weaknesses in HENKOS Stream Cipher

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Paper 2008/353

Weaknesses in HENKOS Stream Cipher

Prasanth Kumar Thandra and 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