[7033] in cryptography@c2.net mail archive
PKZIP: any attacks other than Kocher plain text?
daemon@ATHENA.MIT.EDU (Victor Duchovni)
Mon May 8 15:18:28 2000
Message-ID: <39170E00.485DA2EA@msdw.com>
Date: Mon, 08 May 2000 14:57:04 -0400
From: Victor Duchovni <Victor.Duchovni@msdw.com>
Reply-To: Victor.Duchovni@msdw.com
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I am aware of the Paul Kocher single known plaintext attack (13
bytes or more) on the stream cipher used to password protect ZIP
archives.
Are there any other practical attacks (~1 hour on modest hardware)
against the cypher if the password is presumed to have sufficient
entropy.
I would like to keep the discussion focused on just this specific
algorithm. Clearly better algorithms are available.
--
Viktor.
