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If you do not have access to the private key, then you can't get
it from anyplace to put into wireshark. If you could, then that would be a HUGE
security hole. Now with that said, you can still sniff traffic on an encrypted
connection, if you put in some sort of man in the middle proxy. You could set up
a proxy that would act on your behalf between you and the web sever. You could
then take have it come at you in clear text and could sniff it that way or
re-encrypt it, get the private cert and decrypt it with Wireshark. You
would have to set up a man in the middle, which might defeat the purpose of what
you are trying to sniff. This is all based on the understanding that you are
trying to look at layer 7 (I.E. text that occurs in the encrypted
packet). If you are trying to look at handshakes and such, then you could
use Wireshark for that or even better SSLDump.
From: wireshark-announce-bounces@xxxxxxxxxxxxx
[mailto:wireshark-announce-bounces@xxxxxxxxxxxxx] On Behalf Of Wireshark
announcements
Sent: Wednesday, April 01, 2009 2:39 PM
To:
wireshark-announce@xxxxxxxxxxxxx
Subject: [Wireshark-announce]
Question about the private key of a homerouter for SSL
decryption
Dear all,
I hope you may be able to help me. I am trying to
debug and understand my network but have run into trouble when handling SSL
packets. To make it easier to understand where I am up to, here are some
details:
- Currently I am using Wireshark on a windows PC.
- Clearly I have physical access to the router and network switches, and
access to my router's configuration / diagnostics etc.
- I understand that to view SSL packets in Wireshark I need to obtain the
private key from the SSL certificate on the server, decrypt it with open SSL
and then load it as a .pem into Wireshark. (I think that's correct, please
tell me if not).
The problem I'm having is that I can't export
any certificates in the .pfx Personal Information Exchange format which I
need, to be able to export the private key with the certificate.
If I
am using a standard home router like the linksys except it's made by 2wire, is
there some way I can get it off there?
Thank you in advance and I hope
someone can point me in the right direction.
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