This command lists the frame number, the Random field and the Server Name for Client Hello messages: tshark -Y ' and =1' -Tfields -e frame.number -e -e _server_name -r ssl-decryption-pluralsight.pcapng This is matched against the Random field in the Client Hello message. To cross-reference the keys from the key log file, note that the Key Log File uses the following format for TLS 1.2 secrets: CLIENT_RANDOM While the key log file is non-empty, some keys are still missing.

Here are links to the sslkey.log, ssldebug.log, and pcapng:Īny comment or feedback is much appreciated. I'm not great at interpreting the SSL debug file but it seems like most every frame logs:ĭecrypt_ssl3_record: no decoder available. The Cipher Suite being used is TLS ECDHE RSA WITH AES 128 GCM SHA256 but that didn't seem to be an issue in the tutorials. I verified that the paths are not misspelled and the Chrome is writing into the sslkey.log file. Opened an incognito browser with Chrome and navigated to Īfter that the packets remain encrypted and no Decrypted SSL tab shows.Closed all instances of Chrome and Wireshark.Changed the settings of wireshark in Perferences>Protocols>SSL> (Pre)-Master-Secret log filename to the location of sslkey.log.Created a system environment variable 'SSLKEYLOGFILE' to a text file called sslkey.log.I am trying to view TLS/SSL traffic coming from my Chrome and have been following the basic tutorials fromĪnd (Troubleshooting with Wireshark: Analysing and Decrypting TLS Traffic with Wireshark).

Wireshark mac tutorial