Wez

sorry I didn't think to look at the feature list of enterprise version
and had to bug the list

Thanks much

I find it interesting that I didn't find any export-control information
on the realvnc web site. The UK signed the Wassenaar Arrangement--but
I'm not sure if the UK government decided to implement any or all of it
with respect to encryption software.

Anyway, thanks again for the information.

Ben

On Fri, 2005-06-03 at 14:26 +0100, James Weatherall wrote:
> Ben,
> 
> VNC Enterprise & Personal Editions encrypt session data (see
> http://www.realvnc.com/products/enterprise), other versions do not.
> Versions that do not support encryption use 3DES to perform
> challenge-response authentication of remote users.
> 
> Regards,
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -----Original Message-----
> > From: [EMAIL PROTECTED] 
> > [mailto:[EMAIL PROTECTED] On Behalf Of Benjamin Collar
> > Sent: 03 June 2005 13:20
> > To: [email protected]
> > Subject: encryption & export restrictions
> > 
> > Greetings
> > 
> > I'm investigating the kinds of encryption included in VNC 
> > software. This
> > is important because of the various export restrictions on encryption
> > software instituted by the US and many EU countries.
> > 
> > The RFB spec and other sources acknowledge the use of DES encryption
> > during the initial handshaking. However, the spec says:
> > 
> > "Note that after the security handshaking phase, it is possible that
> > further protocol data is over an encrypted or otherwise altered
> > channel."
> > 
> > The handshake documentation lists other security types, but does not
> > explain what they mean: RA2, RA2ne, Tight, Ultra, TLS. These are in
> > addition to None and VNC Authentication. The quote from the spec does
> > not make it clear whether the noted encryption is external to 
> > VNC (like
> > VNC over SSH) or internal.
> > 
> > I'm guessing that "VNC Authentication" refers to DES. What 
> > are the other
> > "security types" and what encryption, if any, do they use? Is there
> > encryption used anywhere else in the software?
> > 
> > If this list is inappropriate for such a question, I would 
> > appreciate it
> > if someone could point me in the right direction
> > 
> > Thank you for your time
> > Ben
> > 
> > -- 
> > Benjamin Collar
> > Siemens AG
> > CT SE 2
> > Embedded Linux
> > 089-636-53711
> > _______________________________________________
> > VNC-List mailing list
> > [email protected]
> > To remove yourself from the list visit:
> > http://www.realvnc.com/mailman/listinfo/vnc-list
> > 
> 
-- 
Benjamin Collar
Siemens AG
CT SE 2
Embedded Linux
089-636-53711
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