@Stepan Salenikovich
"The short answer is that in Ring, your text messages are also encrypted."
But are they end to end encrypted? How and with what protocol?
"I believe for regular SIP accounts it depends on whether or not your account
is configured to connect via TLS, but I'm not sure."
@James Cloos @Stepan Salenikovich
"As such, if the SIP is done over tls, the the message is also encrypted."
But TLS is not end to end encryption, it's available as plaintext to the
server, right?. I'm only interested in end to end encryption. So AFAIK SIP has
only client-server encryption for messages and can use end to end encryption
only for calls (ZRTP/SRTP).
-------- Original Message --------
Subject: Re: [Ring] Are text messages encrypted?
Local Time: April 4, 2016 3:47 PM
UTC Time: April 4, 2016 3:47 PM
From: [email protected]
To: [email protected]
Oups, just realized I accidentally only replied to Takeback the first time
around:
The short answer is that in Ring, your text messages are also encrypted. I
believe for regular SIP accounts it depends on whether or not your account is
configured to connect via TLS.
Here is a usefull reply from a couple of months back that goes into a bit more
detail:
https://lists.savoirfairelinux.net/pipermail/ring/2016-February/002343.html
-stepan
----- Original Message -----
From: "James Cloos" <[email protected]>
To: "Takeback" <[email protected]>
Cc: [email protected]
Sent: Monday, April 4, 2016 11:38:10 AM
Subject: Re: [Ring] Are text messages encrypted?
>>>>> "T" == Takeback <[email protected]> writes:
T> As of my knowledge, SIP applications do not encrypt messages, only
T> voice and video calls (with DTLS, SRTP or ZRTP) and transit (with
T> TLS). Correct me if I'm wrong.
When SIP is used for message, the message is typically send as a sip
body, just like sdp is used in INVITEs.
As such, if the SIP is done over tls, the the message is also encrypted.
There is an alternative where sdp isused to configure a T.140/RTP socket
pair. If that is done then the t140/rtp can be encrypted by srtp in the
same way that audio/rtp or video/rtp can be.
I'll let someone w/ more insight into ring handle the ring-specific
parts of your query.
-JimC
--
James Cloos <[email protected]> OpenPGP: 0x997A9F17ED7DAEA6
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