![]() Wireshark will show you the packets in the given session in an unencrypted fashion. c:\tls\debug2.txt is the name of the file which includes information about the decryption processĤ) Once all is ready, you can click "Apply" to start the decryption process. c:\tls\keyout.pem is the name of the file which includes the converted private key http is the protocol carried inside the SSL/TLS session 443 is the TCP port at the server side. ![]() This is the server using the certificate that we extracted the private key from. Note: The following dialog box could be seen by first selecting Edit > Preferences and then selecting "Protocols" from the left pane and selecting SSL at the left pane again: => After the last command, the outfile "keyout.pem" should be seen in the following format:ģ) Now we can use the private key file in Wireshark as given below: Note: The Certificate export wizard could be started by right clicking the related certificate from certificates mmc and selecting "All Tasks > Export" option.Ģ) In the second stage, we'll need to convert the private key file in PKCS12 format to PEM format (which is used by Wireshark) in two stages by using the openssl tool:Ĭ:\OpenSSL-Win32\bin> openssl pkcs12 -nodes -in iis.pfx -out key.pem -nocerts -nodesĬ:\OpenSSL-Win32\bin> openssl rsa -in key.pem -out keyout.pem I tested the following steps a couple of times on a Windows 2008 server and it seems to be working fine.įirst of all we'll need the following tools for that process: (At least I tested with these versions)ġ) We first need to export the certificate that is used by the server side in SSL/TLS session with the following steps: Even though there're a couple of documentations around (you can find the references at the end of the blog post), all steps from one document doesn't fully apply and you get stuck at some point. You'll find complete steps to do this on Windows systems. In some cases it may be quite useful to see what is exchanged under the hood of an SSL/TLS session from troubleshooting purposes. ![]() In this blog post, I would like to talk about decrypting SSL/TLS sessions by using Wireshark provided that you have access to the server certificate's private key. 163 blogs的博客:How to decrypt an SSL or TLS session by using Wireshark How to decrypt an SSL or TLS session by using Wireshark
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