CA certificate installation¶

CA certificate installation is the process of importing a Certificate Authority (CA) root certificate into a device's trusted root store. This procedure is required when a device—such as a mobile phone or computer—connects to a network via an intermediary proxy (like Fiddler) to inspect HTTPS traffic. Without the certificate, the device cannot verify the encryption signature used by the proxy, resulting in connection failures or blocked content^[600-developer-tools-mobile-fiddler-classic.md].

When using tools like Fiddler Classic for debugging, the software generates a unique CA Root Certificate. This certificate must be exported from the proxy tool and explicitly installed on the target mobile device. This installation creates a trust anchor, allowing the device to recognize the proxy's encryption as valid and thereby decrypt and inspect the data^[600-developer-tools-mobile-fiddler-classic.md].

Installation workflow¶

1. Export from Proxy: Access the proxy settings (e.g., Fiddler) and locate the option to export or install the CA certificate^[600-developer-tools-mobile-fiddler-classic.md].
2. Transfer to Device: Send the certificate file to the mobile device or download it via the gateway IP provided by the proxy tool^[600-developer-tools-mobile-fiddler-classic.md].
3. Install: Navigate to the device's security or credential settings and install the CA certificate^[600-developer-tools-mobile-fiddler-classic.md].

Sources¶

• 600-developer-tools-mobile-fiddler-classic.md