Sun setting on stream ciphers?

From: Mok-Kong Shen (mok-kong.shen_at_t-online.de)
Date: 02/27/04 

Date: Fri, 27 Feb 2004 18:54:26 +0100

In http://www.eweek.com/article2/0,4149,1538027,00.asp
with the title 'RSA Panel: Cryptography Can't Foil Human
Weakness' there is the following:

    In perhaps the only actual discussion of cryptography,
    the Weizmann Institute's Shamir said the sun was setting
    on stream ciphers used to encode real-time data streams.
    Instead, the power of today's microprocessors could be
    used to encode data in blocks via block ciphers, which
    are more powerful but require a large amount of
    information to be buffered and then encoded.

Are stream ciphers really to go away in practice? What are
the opinions of the group? Aren't there ongoing projects
of stream cipher designs? (I suppose the issue might
depend on the 'definition' of stream cipher and block cipher.
Note that combinations of both types of techniques are
possible and in fact could be advantageous in my humble view.)

M. K. Shen
--------------------------------------
http://home.t-online.de/home/mok-kong.shen

Relevant Pages

  • Re: Sun setting on stream ciphers?
    ... > with the title 'RSA Panel: Cryptography Can't Foil Human ... > on stream ciphers used to encode real-time data streams. ... > depend on the 'definition' of stream cipher and block cipher. ...
    (sci.crypt)
  • Re: and now for something complete different part 2
    ... CFB is a chaining mode for BLOCK CIPHERS, not STREAM CIPHERS. ...
    (sci.crypt)
  • Re: convert stream ciphers into block ciphers
    ... >> If the security goals of stream ciphers and block ciphers ... >The original poster didn't mention security. ... "Not much complexity is needed if you don't care about security." ...
    (sci.crypt)
  • Re: Sun setting on stream ciphers?
    ... > on stream ciphers used to encode real-time data streams. ... Interesting of Shamir to say that - at his FSE talk this year he ... There also is a problem that block ciphers are easier to build ... (assuming the employed hash is secure), ...
    (sci.crypt)
  • Re: Stream Ciphers and Confusion/Diffusion
    ... >since stream ciphers are a subset of block ciphers, ... stream ciphers as a subset of block ciphers. ... I don't think "diffusion" applies. ... Greg Rose ...
    (sci.crypt)