'Re: [OTR-users] RSA key support + Larger DH keys'

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List:       otr-users
Subject:    Re: [OTR-users] RSA key support + Larger DH keys
From:       Jason Cohen <jcohen07 () brandeis ! edu>
Date:       2005-03-29 0:46:08
Message-ID: 4248A550.3050304 () brandeis ! edu
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Sorry, I should have been clearer. I was asking if there were plans to
allow RSA signature keys as well as larger DH keys. I was <b>not</b>
asking if RSA keys would be allowed for encryption. <br>
<br>
Jason<br>
<br>
Ian Goldberg wrote:
<blockquote cite="mid20050329003202.GN30200@smtp.paip.net" type="cite">
  <pre wrap="">On Mon, Mar 28, 2005 at 07:22:46PM -0500, Jason Cohen wrote:
  </pre>
  <blockquote type="cite">
    <pre wrap="">Quoting Ian Goldberg

    </pre>
    <blockquote type="cite">
      <pre wrap="">In this version of the protocol, the only key exchange method \
defined is DSA, and the only key agreement is 1536-bit DH.  This may change in a
later version, at the cost of incompatibility with clients that don't
understand it.
      </pre>
    </blockquote>
    <pre wrap="">Are there plans to change the protocol to support RSA keys or larger
DH keys, or is this just a hypothetical at this point?
    </pre>
  </blockquote>
  <pre wrap=""><!---->
I don't think there's any point to using RSA encryption where DH is used
now, but different DH groups may be possible.  But yes, it's
hypothetical at this time.

There *is* a plausible reason to use RSA signatures instead of DSA in
the initial key exchange, but that's also hypothetical.

   - Ian
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</blockquote>
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