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H.323/XMobile SRTP SDES AES128/32 and AES128/80

asked 2021-09-24 10:48:15 +0000

Hello, I have a question: how can I understand in packets how SRTP calls with cypher AES128/32 differs from AES128/80 by using Wireshark? I can differentiate SRTP from non SRTP (h235Media, encryptionAuthenticationAndIntegrity)

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answered 2021-09-24 16:49:31 +0000

Jaap gravatar image

You would have to know the Crypto-Suite negotiated. Beyond that, these AES128/32 SRTP packets are a little shorter then their AES128/80 counterparts, with a constant sample encoding size codec. If the codec is adaptive, this size difference might be harder to spot.

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Asked: 2021-09-24 10:48:15 +0000

Seen: 36 times

Last updated: Sep 24