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

[Kaul <mykaul () gmail com>]

On Fri, Mar 26, 2010 at 11:49 PM, Anders Broman
<anders.broman () ericsson com>wrote:

>  ------------------------------
> *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> wrote:
>
> > -----Original Message-----
> > From: 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>@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

The above - RSA public key (128bytes, I believe).
TIA,
Y.


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