[VOIPSEC] Help: Using SRTP for university project

[Andreas Steffen]

Hi,

Christian Höhn and Silvan Geser, two of my former students
integrated the libsrtp library into KPhone-4.2 which is
available from

   http://www.wirlab.net/kphone/kphone-4.2.tar.gz

Compile Kphone with

  ./configure --enable-srtp=yes

and activate SRTP in the configuration menu where also
the SRTP master key can be configured. The same students
also implemented the MIKEY peer-to-peer key exchange algorithm
for KPhone as part of their diploma thesis. The MIKEY patches
haven't found their way into an official release yet but can be
obtained from me.

Best regards

Andreas Steffen

M Rizal B Azmi wrote:
> Hi all,
> 
> I'm doing a university project on VoIP security. It's purpose is to
> analyze the impact of basic VoIP security measures on performance.
> Currently the scope is focusing on SRTP as it doesn't effect QoS. The
> only software phone I know which supports SRTP is the the Snom 360
> Softphone. However, I can't seem to make it dial or receive any VoIP
> calls. Snom support hasn't replied as of now.
> 
> My only other option is to use libSRTP but I do not understand how to
> utilize it as my programming knowledge is very low. So far I managed
> to  compile it using cygwin but am stuck as to what to do next. After
> applying SRTP, I would analyze the traffic using Ethereal and attempt
> some packet sniffing to prove its functionality. The experimentation
> is  done at my uni lab with the following setup:
> 
> - Analog Telephones (Generic – 2 units) - Analog Voice Modules (Cisco
> NM-2V – 2 units installed in routers) - Routers (Cisco 3725
> Multiservice Access Router – 2 units) - Switches (Intel Express 410T
> & Cisco 3550 Catalyst – 2 units) - Desktop PCs (Compaq Evo D510 –
> Multiple units) - Switches (Intel Express 410T & Cisco 3550 Catalyst
> – 2 units)
> 
> The two routers are interconnected via serial cable. Others are
> connected using basic Ethernet UTP cables. Its a very basic setup of
> two connected networks. (Not sure how to post the connection diagram
> in  here)
> 
> Thanks in advance for your assistance.
> 
> Regards, M Rizal B Azmi

======================================================================
Prof. Dr. Andreas Steffen               e-mail: andreas.steffen at hsr.ch
Institut fuer Internet-Technologien und Anwendungen
Hochschule fuer Technik Rapperswil
Oberseestrasse 10                       phone:  +41 55 222 42 68
CH-8640 Rapperswil (Switzerland)        mobile: +41 76 340 25 56
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