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2020-06-25 18:38:11 +0000 | commented answer | Decrypt SRTP with inline encryption Thanks, I see. Fortunately it is not mandatory for me to decrypt the SRTP, but it would have been nice. And I certeanly |
2020-06-25 18:37:06 +0000 | marked best answer | Decrypt SRTP with inline encryption Hi there, I have a secure SIP session with SRTP audio captured in Wireshark. I am able to decrypt the SIP TLS using the server private key. In the SIP SDP I can see that inline SRTP encryption is used:
Based on the RFC 4568, the key after the "inline" part is the 40 byte long Base64 encoded master+salt concatenation, which, when decoded, should become 30 bytes. However when I tried any of the online Base64 decoders, I got very random output, not what I expected. Using Java code to decode the Base64, I even got some negative bytes. I'm not sure how to decode the key, or if I can use it as it is? I tried inputting this whole string to Wireshark as the "Pre-Shared-Key" for the DTLS protocol, however the audio is still encrypted. Is there a way to decrypt this SRTP stream in Wireshark? |
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2020-06-25 18:37:03 +0000 | commented question | Decrypt SRTP with inline encryption Thanks for the explanation, now I get it! I would upvote, but I'm just a newbie so I can't :) |
2020-06-25 16:27:28 +0000 | asked a question | Decrypt SRTP with inline encryption Decrypt SRTP with inline encryption Hi there, I have a secure SIP session with SRTP audio captured in Wireshark. I am a |
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2019-05-29 11:51:55 +0000 | asked a question | How to decrypt WebRTC with Diffie-Hellman? How to decrypt WebRTC with Diffie-Hellman? I originally asked this question on another forum, but was redirected here, m |