This guide describes how to import your personal certificate for signing and encrypting emails in Apple Mail for iOS and iPadOS. To do this, you will need a certificate in the form of a *.p12 file.
Unfortunately, signing PDF documents is not possible on these devices.

How do I request a personal certificate?

Please note the information on Email Encryption.
 
  1. Set up your email account on the Apple device (Setup). 
     
  2. Now open your "certificate file".
     
    explanatory screenshot to the previous description with marker on your certificate
    Screenshot: Zertifikatsdatei

     
  3. Go to the "settings" to install the profile.
     
    explanatory screenshot to the previous description with marker on Profile Downloaded
    Screenshot: Profile Downloaded

     
  4. Now click on "Install" and confirm this again in the next two screens.
     
    explanatory screenshot to the previous description with marker on Install
    Screenshot: Profile installation

     
  5. You will be prompted to enter the password of the certificate, after you have done this click "Next".
     
    explanatory screenshot to the previous description with marker on Next
    Screenshot: Password request

     
  6. Now switch to the mail settings (Settings -> Mail -> Accounts -> TU Dresden Account). There click on "Accounts".
     
    explanatory screenshot to the previous description with marker on Account
    Screenshot: Mail accounts 

     
  7. Click on "Advanced Settings".
     
    explanatory screenshot to the previous description with marker on Advanced Settings
    Screenshot: Account settings 

     
  8. At "S/MIME" you have the possibility to change the default behavior for new mails.
     
    explanatory screenshot to the previous description with marker on S/MIME
    Screenshot: S/MIME
  9. You have successfully set up the certificate.