Zertifikate in den Browser importieren

Illustration of the end devices when calling a website (once with and once without certificate)A web page is reached by calling the address in the browser. Normally you can immediately access the pages of the web server and surf on the pages of the service provider.

Access to web pages can be restricted by means of so-called "client certificates". Such a "client certificate" is issued by the service provider of the web service in the form of a file (e.g. p12-files) and offered to you with a password for installation in your browser.

When accessing such a protected website, the web server requests that "client certificate" from the calling browser. The browser looks at its list and retrieves the appropriate certificate.

If you access a web site that expects a certificate without a certificate, the following message usually appears: "400 Bad Request - No required SSL certificate was sent" or "403 Forbidden".

This page describes for the different browsers how to import and use such a client certificate.

Safari under iPadOS

Shared view on iPad

Safari under iPadOS

The browser is available for different platforms (iOS, iPadOS and macOS). For Android, Linux, Windows Safari is not or not yet available today. Here we look at the settings under Apple iPadOS.

To access pages with Safari that require "client authentication" with a certificate, a corresponding certificate must be imported. In the example we want to access the URL "https://vc.edv-workshops.com" (the address does not exist).

If you have not imported a certificate, the error message "400 Bad Request - No required SSL certificate was send" or "403 Forbidden" will appear when the address is accessed.

Read more: Safari under iPadOS

Illustration Firefox under iOS

Browser from the nonprofit organization

Firefox under iOS

... who's fighting for your online rights. Mozilla Firefox is available for different platforms (Android, iOS, iPadOS, macOS, Linux, Windows, ...). Here we look at the settings under Apple iOS.

Mozilla Firefox also looks good for the mobile operating system Apple iOS. Unfortunately, it does not support its own certificate management yet and embedding it into the iOS certificate management is not possible. Thus Firefox for iOS cannot yet handle client-certificates in the Firefox for iOS version 27 from 25.06.2020.

Use Safari under iOS to visit a page that is protected with client certificates.

Illustration Firefox under Linux

Browser from the nonprofit organization

Firefox under Linux

... who's fighting for your online rights. Mozilla Firefox is available for different platforms (Android, iOS, iPadOS, Linux, macOS, Windows, ...). Here we look at the settings under Linux (Ubuntu).

To access pages with Firefox that require "client authentication" with a certificate, a corresponding certificate must be imported. In the example the URL "https://vc.edv-workshops.com" is to be accessed (the address does not exist).

If you have not imported a certificate, the error message "400 Bad Request - No required SSL certifiacate was sent" or "403 Forbidden" will appear when the address is accessed.

Read more: Firefox under Linux

Illustration Chrome under Linux

Chrome - Advanced browser under Linux

Chrome under Linux

The browser is available for different platforms (Android, iOS, iPadOS, macOS, Linux, Windows, ...). Here we look at the settings under Linux (Ubuntu).

To access pages with the chrome that require "client authentication" with a certificate, a corresponding certificate must be imported. In the example the URL "https://vc.edv-workshops.com" is to be accessed (the address does not exist).

If you have not imported a certificate, the error message "400 Bad Request - No required SSL certificate was sent" or "403 Forbidden" will appear when the address is accessed.

Read more: Chrome under Linux

Choose Language

Main Menu