BackupKey Method
Backs up a key.
Object Oriented Interface
public function doBackupKey($keyname);
Procedural Interface
cloudkeys_azurekeys_do_backupkey($res, $keyname);
Remarks
This method backs up the key specified by KeyName, returning it in a protected form via the the specified OutputFile or the OutputData property.
Note that the protected key cannot be used outside of Azure Key Vault, it must be restored to another vault using the RestoreKey method in order to be used.