[Serusers] SIP encrypted calls

[Stefano]

Thank you very much for the news,
i have another question:

what about SIPS (SIP Secure)? i found out two links to this subject

http://www.ietf.org/internet-drafts/draft-barnes-sipping-sec-inserted-info-02.txt
http://www.ietf.org/internet-drafts/draft-jennings-sip-sec-flows-02.txt

and i think SNOM has implemented something about SIPS.
What about SER do you think there will be future implementation of SIPS?

stefano


>-- Messaggio Originale --
>From: Nils Ohlmeier <lists at ohlmeier.org>
>To: serusers at lists.iptel.org
>Subject: Re: [Serusers] SIP encrypted calls
>Date: Fri, 25 Feb 2005 20:09:47 +0100
>Cc: "Stefano" <stefanoblasco at tiscali.it>,
>	"Daniel-Constantin Mierla" <Daniel-Constantin.Mierla at fokus.fraunhofer.de>
>
>
>On Friday 25 February 2005 12:02, Stefano wrote:
>> I'd like to encrypt media, but i thought there should be some client that
>> can do it
>> without changing proxy behaviour!
>
>There are clients. See my previous mail. SRTP is completely transparent
for
>
>SIP proxies.
>
>> Anyway IPSec seems a good solution, but if I configure the proxy server
>for
>> IPSec, can i handle both encrypted and not encrypted calls?
>
>You should be able to receive messages encrypted over IPSec as well as the
>
>plain old messages.
>But this solution will only work if you put an IPSec gateway in front of
>a 
>complete subnetwork with phones in it or use only soft-phones. Because I
>do 
>not know any hard phones which support IPSec (correct me if I'm wrong).
>
>Greetings
>  Nils
>
>> stafano
>>
>> >-- Messaggio Originale --
>> >Date: Thu, 24 Feb 2005 17:13:00 +0100
>> >From: Daniel-Constantin Mierla
>> > <Daniel-Constantin.Mierla at fokus.fraunhofer.de> To: Stefano
>> > <stefanoblasco at tiscali.it>
>> >CC: serusers at lists.iptel.org
>> >Subject: Re: [Serusers] SIP encrypted calls
>> >
>> >
>> >You want to encrypt the signaling, media or everything?
>> >
>> >For everything I guess IPsec is the solution, for signaling only, TLS
>> >can be an alternative to IPsec. Just for media, a solution would be
>> >Secure-RTP but I am not aware of any client implementing it.
>> >
>> >If the signaling is encrypted, the proxy must know how to decrypt it.
>> >
>> >Daniel
>> >
>> >On 02/24/05 15:37, Stefano wrote:
>> >>Hi all,
>> >>
>> >>i have a question:
>> >>
>> >>-do you know how it's possible to encrypt the comunication between two
>>
>> SIP
>>
>> >>client?
>> >>
>> >>-does the proxy implement some particular tasks or actions, or is it
>a
>>
>> client-side
>>
>> >>problem?
>> >>
>> >>-if it is so, do you know any SIP client that implements encription?
>> >>
>> >>Thank you very much
>> >>stefano
>> >>
>> >>__________________________________________________________________
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>> >>
>> >>
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>>
>> __________________________________________________________________
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>>
>>
>>
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__________________________________________________________________
Tiscali Adsl 3 Mega Flat, 3 MESI GRATIS! 
Con Tiscali Adsl 3 Mega Flat navighi in Rete alla supervelocita'
a soli 29.95 euro al mese senza limiti di tempo. Attivati entro
il 28 Febbraio 2005, 3 MESI sono GRATIS
Scopri come http://abbonati.tiscali.it/adsl/sa/2flat_tc/