minisip srtp interoperatbility ?

[Mikael Magnusson]

Cesc wrote:
> last i heard from the snom guys, they were planning on implementing
> Security Descriptors as their preferred SRTP keying protocol ... i
> don't know what is finally there ... So, unless they support mikey ...
> no interop i think
> 
> Cesc
> 

Yes, they are using Security Descriptions (RFC4568) as can be seen on 
the call trace in the online manual. Actually it isn't fully standards 
compliant since they announce RTP/AVP as transport protocol to allow 
fallback to unencrypted transport.

http://www.snom.com/wiki/index.php/SIP_Traces#Call

But they don't support S/MIME which is needed to secure RFC4568 end-to-end.

Mikael

> On 2/8/07, Philippe Torrelli <philippe.torrelli at alcatel.fr> wrote:
>>
>>
>> We ordered a couple of Snom 300 devices, that are supposed to support
>>
>> srtp with pki / dh and psk ...
>>
>>
>>
>> Do you know if it can establish a secure media stream with minisip ?
>>
>> Are there other device that minisip can interoperate with in terms of 
>> srtp ?
>>