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Re: [TLS] RC4 depreciation path (Re: Deprecating more (DSA?))

Ilari Liusvaara <ilari.liusvaara@elisanet.fi> Sat, 19 April 2014 14:27 UTC

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Date: Sat, 19 Apr 2014 17:27:45 +0300
From: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
To: Kurt Roeckx <kurt@roeckx.be>
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Subject: Re: [TLS] RC4 depreciation path (Re: Deprecating more (DSA?))
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On Sat, Apr 19, 2014 at 03:10:19PM +0200, Kurt Roeckx wrote:

> - Clients should not announce support for RC4 in their initial
>   connection attempt, and only fall back to support it when the
>   server says that there are no common ciphers.  (I'm not sure
>   if a MITM can fake that response or not.)

MITM (or eavesdropper with packet injection capabilities) can
fake the response, there is no cryptographic verification.


-Ilari

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