Electronic certificates on Android mobiles
Skip information indexAndroid. How to import a digital certificate
To import an electronic certificate to the mobile device, it is necessary to have a valid copy of it. The icon for a valid copy is an open envelope with a green certificate sticking out and a key, with the file extension .pfx or .p12.
A copy of the same certificate can be imported multiple times. If the same name is indicated it will be overwritten. Otherwise, it will appear repeated in the certificate selection window when signing, with each name that has been established.
There are several options for importing a copy of the certificate depending on the file location:
Import a copy from e-mail
You must access the certificate, sent as an attachment to the email. It is advisable to access the email through the browser, from the web version, and not through the email app usually installed on mobile devices.
When downloading the file the set up wizard starts up. Enter the backup password for the copy and once entered click "OK". If you do not have a Pattern or PIN lock established (depending on the Android version, one or the other may be required) the system does not allow the installation of the certificate.
Next, if preferred, the "Certificate Name" can be modified (possibly a code of letters and numbers will appear).
Finally, enter the PIN or unlock pattern to finish the installation (if there is not one, it will force you to establish it). If it is the first certificate that is installed, it will also ask for the device's PIN.
Import a copy for any location in the device
The certificate can be imported from any location on the device, not just from SD memory. If it is from a SD memory, access the "Settings", "Security", "Install certificates from SD. .
The available certificate copies are shown by default. Once a copy has been imported, it disappears from the SD card. and therefore from the list. If you have the copy outside the device, you can import it again.
Install certificates from the certificate selection window
Certificates can also be installed from the certificate selection window, which is enabled when accessing a procedure that requires identification with an electronic certificate, using the "Install" button: