HTTPS Dialog

The HTTPS Settings dialog box is used to configure HTTPS packet capture and certificate management. The interface is as follows:

Function/Option	Description	Notes
Download RootCA	Download the Whistle root certificate to your local computer	Used for initial installation or when the certificate expires
rootCA.xxx Selector	Switch certificate formats: .crt, .cer, .pem	If installation of a certain certificate format fails, try another format
QR Code Address Selector	Switch mobile certificate download address	Convenient for scanning and downloading certificates on mobile phones. See Mobile Packet Capture for details
Enable HTTPS (Capture Tunnel Traffic)	Enable HTTPS traffic decryption (requires root certificate installation)	Can also be controlled through rules: enable://https disable://https
Enable HTTP/2	Enable HTTP/2 protocol support (enabled by default)	Can also be controlled via rules: enable://http2 disable://http2
Custom Certs Settings	View, Upload, or Delete User-Defined Certificates	Direct uploading of root certificates is not supported. If you need to customize the root certificate, you must place it in the custom certificate directory and restart Whistle for it to take effect.

Custom Certs Settings

Click the Custom Certs Settings button to open the custom certificate management panel. In this panel, you can upload server certificates used in your official business (commonly used to resolve SSL pinning detection issues).

Certificate files must be uploaded in pairs, meaning each upload must include one key file and one certificate file. Supported file pairing formats are as follows (actual filenames can be customized, but extensions must meet the requirements):

1. .key file + .cer file
2. .key file + .crt file
3. .key file + .pem file

For example:

• server.key and server.cer
• mycert.key and mycert.crt
• cert.key and cert.pem

Please ensure that each certificate and key file pair matches in content; otherwise, certificate configuration may fail.