Re: [rdesktop-devel] RDP Server - connect response key signature creation

[Justin F. <ju...@re...>]

I had the same problem with my security usb smart key fob.  The problem we 
have is M$'s CAPI which only supports windows operating systems.  CSP is 
Cryptographic Service Provider, CSP works together with MS CAPI, and vendors 
write their own CSP, there doesnt exist AFAIK a software PKI.  Fortunately, i 
now have a security device which has hardware encryption on the key fob 
itself, so it wont be too much of a concern for me.

On Saturday 03 April 2004 21:57, Brian Dodge wrote:
> Greetings,
> I am writing (for fun) an RDP server to complement a VNC server I wrote
> which runs on Linux/Solaris (but shares actual desktop unlike VNC on Linux
> which is an X server), and Windows as well.  I've decoded enough underlying
> communications to connect on the iso/mcs layers and partially on the secure
> layer with the Windows RDP client.  The client however doesn't seem happy
> with the RSA public key and/or signature I send it in the user data portion
> of the connect-initial response.  I am using openssl-libcrypto to generate
> the public key, but I don't know how to generate the 72 bytes of signature.
> If I use a Microsoft server generated key/signature I get from a wire sniff
> in place of my own, the client seems happy and continues on to send me
> encrypted rdp data (which I can't decrypt of course sans private key).
> Thanks for all your work creating rdesktop, truly a remarkable feat, and I
> look forward to sharing my server with you in the future. Thanks,  Brian
>
>
>
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