Score:1

What is the key file for ssldump?

sa flag

I search google for a tool to decode https traffic and get the ssldump with examples like:

ssldump -k xxx.pem  -i eth0 -d host example.com

I wonder what the key file xxx.pem is. On the server hosting example.com, the file is what is specified by SSLCertificateKeyFile in httpd.conf, right?(but I have no luck decrypting the traffic on server using that key file). On client side, what file should I use as the key file? If I want to decrypt the traffic between my machine and https://google.com, I certainly cannot get the private key for google.com. And I don't think a client uses a private key file to encrypt/decrypt the data in https.

de flag
Make sure that key file contains only private key. Make sure that the captured file contains ssl handshake as well
peter avatar
sa flag
@kofemann The key file is issued by letsencrypt. All content is contained within -----BEGIN PRIVATE KEY----- and -----END PRIVATE KEY-----. From the ServerHello message, I can see the cipherSuite is TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256. Does ssldump support that cipherSuite?
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