Stream cipher against block cipher

From: azamruk (azamruk_at_voila.fr)
Date: 06/27/03 

Date: 27 Jun 2003 04:43:17 -0700

Hi,

Is secret key stream cipher are globally weaker than block cipher ?
Why the most popular secret key algorithms are block cipher ?

Is there weekness in them (stream cipher) or difficulties to make them strong ?
Or is it only a "culture" biasis ?

Thank you.

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