![]() ![]() WireShark needs to know the destination IP address to determine what packets to decrypt.Ģ. The destination IP address that the SSL traffic is terminating at. The “RSA keys list” needs four pieces of informationġ. You will need to configure the RSA keys list and the SSL debug file fields to use the private key Once you have the Preference Window up, expand the Protocol tree on the left side of the screen and go to the SSL protocol ![]() Go to the edit menu open and select the “Preferences” menu option If you do not have WireShark installed, it can be downloaded from and this is a free and open source product. You are now ready to use WireShark to decrypt the SSL traffic. A key that is in the clear should show “ -–BEGIN PRIVATE KEY-–“ Once you have the conversion completed, you can open the key file using notepad. Remember – Once you are done with the debugging effort that you delete the respective private key files, especially if these are production certificates! I would recommend using a batch file to handle this command. Note: You may need to change the path “C:\OpenSSL-Win32\bin\openssl” to the location that you installed the tool at. Once you have the tool installed on your local PC you will need to run the following to command to convert it and strip off the encryption from the keyĬ:\OpenSSL-Win32\bin\openssl pkcs12 -in C:\mycert\M圜 -out C:\M圜ert\M圜 –nodes The file is the “Win32_OpenSSL” and it will have some version number added at the end of the file. You can download the Windows install of Open-SSL from. To convert a PFX file to a PEM format requires the Open SSL tools which are free and open source. ![]() The SSL keys are typically in the form of a PFX file and you will need to convert them to a PEM/KEY format and strip off the encryption that is protecting the private key as WireShark will not read the private key if it is encrypted. Remember – you are viewing consumer’s private data and this should be treated with protection and respect. Using a private key to decrypt SSL traffic should only be done to debug application problem. This blog entry will outline the steps to decrypt SSL traffic. If you have access to the private key, Open SSL and WireShark installed then it is possible to decrypt the SSL traffic and see the traffic in the clear within WireShark. Debugging an application problem is very difficult when the network traffic is going via HTTPS (SSL). ![]()
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