Electronic certificates on IOS mobile devicesSkip information index
iOS.Error when importing a .cer copy
Copies of.cer files can be imported on IOS, although this is not advised.These are not valid certificates and they will not appear in the signature window if you try to use them (giving rise to error 403).
If you import a .cer copy, you will not get an error message and the invalid copy will be installed.If you go to "Settings", "General", "Profiles", the electronic certificate will appear on the list of certificates and will not be distinguishable from another valid imported copy with the file extension .pfx.
If you check the details of each of the certificates, they will appear to be the same, however, a .cer will never appear on the list of certificates available for use.If you only have the certificate with the.cer file extension on the certificates list, error 403 will come up directly.