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Re: [Linphone-developers] Aktivate SRTP on linphone desktop ubuntu

From: Peio Rigaux
Subject: Re: [Linphone-developers] Aktivate SRTP on linphone desktop ubuntu
Date: Fri, 17 Apr 2020 09:22:19 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0


I took a quick look at our rcfiles, and as far as I know there is no option to enable null cipher.

By the way, the null cipher is not performing any encryption!

Yes, using the parameter you provided will enable the 128-bit AES encryption method.

You can also use the 256-bit AES encryption method :




Peio Rigaux
Junior Software Engineer
Belledonne Communications, the company behind Linphone

Le 17/04/2020 à 08:21, Devhils19 a écrit :
thanks for the answer.
Now srtp on linphone is active. From the documentation I read, srtp uses two
encryption methods, AES and NullCipher, then how do I set the type of AES
encryption that I want to use and manage encryption with the Null Cipher?

Is it true that using the following parameters will enable the 128-bit AES
encryption method?

srtp_crypto_suites = AES_CM_128_HMAC_SHA1_80, AES_CM_128_HMAC_SHA1_32


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