DECT standard cipher

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The DECT Standard Cipher is the encryption standard that is used for mobile telephony with DECT on the radio link. The specification of the DECT Standard Cipher has not yet been published and is only available from the European Telecommunications Standards Institute (ETSI) under certain conditions .

Publications of the algorithm

On June 8, 2002, parts of the cipher algorithm of a Samsung DECT SP-R6150 " reverse engineered " were published in the newsgroup alt.anonymous.messages . However, the published source code is a mutilated version of the free CARACACHS algorithm, so that the encryption method used in the DECT standard remained unknown until recently.

In December 2008 it became known that the cipher had been successfully reconstructed and broken through cryptanalysis . In April 2010 Karsten Nohl published together with Erik Tews and Ralf-Philipp Weinmann details on the cryptanalysis of the proprietary and secret encryption algorithm used by DECT, which is based on reverse engineering of DECT hardware and descriptions from a patent specification.

Individual evidence

  1. DECT Standard Cipher Posting from the newsgroup alt.anonymous.messages
  2. CARACACHS ( Memento of the original from April 18, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Homepage of the CARACACHS author  @1@ 2Template: Webachiv / IABot / membres.lycos.fr
  3. deDECTed.org ( Memento of the original from May 29, 2012 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Page of the deDECTed project on the DECT standard cipher @1@ 2Template: Webachiv / IABot / dedected.org
  4. ^ Daniel Bachfeld: Cryptanalysis of the DECT encryption. April 26, 2010, accessed August 11, 2011 .