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Credential Storage
If a certificate authority (CA) certificate gets compromised or
for some other reason you do not trust it, you can disable or
remove it.
1. From a Home screen, touch
Apps
➔
Settings
➔
Security
.
2. Touch
Storage type
to set a storage type for credential
contents.
3. Touch
Trusted credentials
.
The trusted credentials screen has two tabs:
• System
: Displays CA certificates that are permanently installed
in the ROM of your device.
•User
: Displays any CA certificates that you installed, for
example, in the process of installing a client certificate.
4. Touch a CA certificate to examine its details.
A scrolling screen displays the details.
Scroll to the bottom of the details screen and touch
Turn o ff
to disable a System certificate.
Caution!
When you disable a system CA certificate, the
Turn o ff
button changes to
Turn o n
, so you can
enable the certificate again, if necessary.
5. Touch
OK
to return to the certificate list.
6. Touch
Install from phone storage
, then choose a
certificate and follow the prompts to install encrypted
certificates stored on the USB storage.
You must have installed a memory card (not included)
containing encrypted certificates to use this feature.
7. Touch
Clear credentials
, which only appears if you have
installed encrypted certificates, to erase the credential
contents from the device and reset the password.