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[Linphone-developers] ZRTP Linphone<->CSipSimple


From: Sami Farin
Subject: [Linphone-developers] ZRTP Linphone<->CSipSimple
Date: Wed, 6 Mar 2013 09:34:34 +0200
User-agent: Mutt/1.5.21+146 (302044b4ed3f) (2012-12-30)

Linphone to CSipSimple on Android phone works with ZRTP,
but CSipSimple to Linphone not (Linphone does not respond to ZRTP HelloACK).
I am using the latest ortp and libzrtpcpp with linphone-3.5.2.
I would try latest Linphone -dev if it compiled.
On CSipSimple SIP account being used is getonsip.com.

Linphone to CSipSimple:
a=zrtp-hash:1.10 05addd...
...
message: Initialized ZRTP context
message: Starting ZRTP engine
message: sent ZRTP Hello    34383
message: received ZRTP Hello    1
message: sent ZRTP HelloACK 34384
message: ZRTP INFO zrtp_InfoHelloReceived
message: ZRTP INFO zrtp_InfoCommitDHGenerated
message: received ZRTP Hello    2
message: sent ZRTP HelloACK 34385
message: sent ZRTP Hello    34386
message: sent ZRTP Hello    34387
message: received ZRTP Hello    3
message: sent ZRTP HelloACK 34388
message: sent ZRTP Hello    34389
message: received ZRTP HelloACK 4
message: sent ZRTP Commit   34390
message: sent ZRTP Commit   34391
message: sent ZRTP Commit   34392
message: received ZRTP Commit   5
message: received ZRTP DHPart1  6
message: ZRTP INFO zrtp_InfoInitDH1Received
message: ZRTP INFO zrtp_InfoRSMatchFound
message: sent ZRTP DHPart2  34393
message: received ZRTP DHPart1  7
message: sent ZRTP DHPart2  34394
message: received ZRTP DHPart1  8
message: sent ZRTP DHPart2  34395
message: sent ZRTP DHPart2  34396
message: sent ZRTP DHPart2  34397
message: received ZRTP Confirm1 9
message: ZRTP INFO zrtp_InfoInitConf1Received
message: ZRTP secrets for receiver are ready; auth tag len is 32
message: sent ZRTP Confirm2 34398
message: received ZRTP Confirm1 10
message: sent ZRTP Confirm2 34399
message: received ZRTP Confirm1 11
message: sent ZRTP Confirm2 34400
message: received ZRTP Confirm1 12
message: received ZRTP Confirm1 13
message: received ZRTP Conf2ACK 14
message: ZRTP secrets for sender are ready; auth tag len is 32
message: ZRTP secrets on: SAS is cp44 previously verified yes - algo 
AES-128/DH3k
message: ZRTP INFO zrtp_InfoSecureStateOn
message: Authentication token is cp44 (verified)
message: Audio stream is encrypted
message: All streams are encrypted
message: received ZRTP Conf2ACK 15
message: alsa: sound/wall clock skew is average=304.965899 ms, instant=343 ms
message: received ZRTP Conf2ACK 16



CSipSimple to Linphone:
a=zrtp-hash:1.10 05addd...
...
message: Initialized ZRTP context
message: Starting ZRTP engine
message: sent ZRTP Hello    51177
message: sent ZRTP Hello    51178
message: sent ZRTP Hello    51179
message: sent ZRTP Hello    51180
message: received ZRTP Hello    1
message: sent ZRTP HelloACK 51181
message: ZRTP INFO zrtp_InfoHelloReceived
message: ZRTP INFO zrtp_InfoCommitDHGenerated
message: sent ZRTP Hello    51182
message: received ZRTP Hello    2
message: sent ZRTP HelloACK 51183
message: sent ZRTP Hello    51184
message: Received message:
ACK sip:address@hidden SIP/2.0
***no more ZRTP chatting!***
...
a=zrtp-hash:1.10 05addd...
...

-- 
Do what you love because life is too short for anything else.




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