Re: How do I call the pkcs1 dissection from another dissector?

[Anders Broman <anders.broman () ericsson com>]

________________________________
From: wireshark-dev-bounces () wireshark org [mailto:wireshark-dev-bounces () wireshark org] On Behalf Of Kaul
Sent: den 24 mars 2010 07:51
To: Developer support list for Wireshark
Subject: Re: [Wireshark-dev] How do I call the pkcs1 dissection from another dissector?

On Thu, Mar 18, 2010 at 10:39 AM, Anders Broman <anders.broman () ericsson com<mailto:anders.broman () ericsson com>> 
wrote:


-----Original Message-----
From: wireshark-dev-bounces () wireshark org<mailto:wireshark-dev-bounces () wireshark org> 
[mailto:wireshark-dev-bounces () wireshark org<mailto:wireshark-dev-bounces () wireshark org>] On Behalf Of Jeff Morriss
Sent: den 17 mars 2010 18:00
To: Developer support list for Wireshark
Subject: Re: [Wireshark-dev] How do I call the pkcs1 dissection from another dissector?

Kaul wrote:
> > On Fri, Mar 12, 2010 at 12:21 AM, Jeff Morriss <jeff.morriss.ws<http://jeff.morriss.ws>
> > <http://jeff.morriss.ws>@gmail.com<http://gmail.com> <http://gmail.com>> wrote:
> >
> >     Kaul wrote:
> >      > find_dissector("pkcs-1") doesn't seem to be the correct way to do it.
> >      > How do I do it?
> >      > There's a PKCS1 blob I want the PKCS#1 dissector to dissect. How do I
> >      > call it? I can create a TVB for it, of course.
> >
> >     You'd need that dissector to be registered by name (by calling
> >     register_dissector()) first.
> >
> >
> > Can you elaborate a bit? Who's 'that' ? my dissector or the PKCS#1?
> > And how do I make the PKCS#1 register? It is one of the automatically
> > created dissectors...
>
> Sorry, I meant the PKCS#1 dissector (i.e., you'd have to modify the dissector).  Looking briefly at that
> dissector, I don't quite know how
> register_dissector() should be called (in fact I'm not even clear what the entry point to that dissector is!).

> I think that "pkcs" is normaly called from other dissectors using OID's. If you try to explain more explicity what 
> you are trying to do possibly
   > with an example trace we may be able to help you.
> Regards
> Anders

> I have a blob within my protocol that I is a PKCS#1  (v2.0, EME-OAEP format) that I'd be happy to dissect.
> Y.
Well what sort of ASN1 structures are included there? The pkcs1 dissector can dissect

RSAPublicKey

RSAPrivateKey

:
etc the reference in the heaser is RFC 2313
/Anders

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