1996-04-09 - Re: RC4 improvement idea

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From: nyap@mailhub.garban.com (Noel Yap)
To: jamesd@echeque.com
Message Hash: ff0fb2734ea2de9acdbd42fafa565cb82ccd1db472a9ae62536f5d8dde916742
Message ID: <9604082143.AA15502@mailhub.garban.com>
Reply To: N/A
UTC Datetime: 1996-04-09 02:53:16 UTC
Raw Date: Tue, 9 Apr 1996 10:53:16 +0800

Raw message

From: nyap@mailhub.garban.com (Noel Yap)
Date: Tue, 9 Apr 1996 10:53:16 +0800
To: jamesd@echeque.com
Subject: Re: RC4 improvement idea
Message-ID: <9604082143.AA15502@mailhub.garban.com>
MIME-Version: 1.0
Content-Type: text/plain


> For one key in 256, you can tell what eight bits of the state box are.  
> For one key in 64000 you can tell what sixteen bits of the state box are, 
> and so on and so forth.
> 
> Such keys are not weak.

Any statistical correlation can be used to an attacker's advantage.  Maybe your kid sister might not be able to figure it out, but someone else out there will.





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