The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Cryptanalysis of the Stream cipher BEAN

På svenska

Author

Summary, in English

BEAN is a recent stream cipher proposal that uses Feedback with Carry Shift Registers (FCSRs) and an output function. There is a sound motivation behind the use of FCSRs in BEAN as they provide several cryptographically interesting properties. In this paper, we show that the output function is not optimal. We give an efficient distinguisher and a key recovery attack that is slightly better than brute force, requiring no significant memory. We then show how this

attack can be made better with access to more keystream. Already with access to 6 KiB, the 80-bit key is recovered in time 2^73.

Publishing year

2011

Language

English

Pages

21-28

Publication/Series

[Host publication title missing]

Document type

Conference paper

Publisher

Association for Computing Machinery (ACM)

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Stream cipher
  • combiner
  • cryptanalysis
  • FCSR

Conference name

The 4th International Conference on Security of Information and Networks

Conference date

2011-11-14 - 2011-11-19

Conference place

Sydney, Australia

Status

Published

Project

  • EIT_HSWC:Coding Coding, modulation, security and their implementation

Research group

  • Crypto and Security

ISBN/ISSN/Other

  • ISBN: 978-1-4503-1020-8