How to decrypt HTTPS traffic?

To decrypt HTTPS traffic in Wireshark, you can use one of the following methods:

1. Using SSL/TLS Keys

If you have access to the server's private key or the session keys, you can configure Wireshark to use them for decryption.

• Export SSL/TLS keys: Set the SSLKEYLOGFILE environment variable in your browser (e.g., Chrome or Firefox) to log session keys.
• Load keys in Wireshark:
  1. Open Wireshark.
  2. Go to Edit > Preferences.
  3. Expand Protocols and select TLS.
  4. In the (Pre)-Master-Secret log filename field, enter the path to your key log file.
  5. Click OK and restart Wireshark.

2. Using a Proxy

You can set up a proxy (like Fiddler or Burp Suite) that intercepts HTTPS traffic.

• Configure your browser to use the proxy.
• The proxy will decrypt the traffic and allow you to analyze it.
• Ensure you install the proxy's root certificate in your browser to avoid security warnings.

3. Using Wireshark with Decryption Settings

If you have the necessary keys, you can also configure Wireshark to decrypt traffic directly:

• Go to Edit > Preferences.
• Expand Protocols > SSL or TLS.
• Enter the private key file path and any necessary parameters.

Note

Always ensure you have permission to decrypt and analyze traffic, as unauthorized decryption can violate privacy and legal regulations.