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How to restore a TDE encrypted database to a different server?
In order to successfully restore a TDE encrypted database to a different server you will need to backup the existing certificate on the source server and then export it to the new/destination server. Below I have outlined the necessary steps for doing this.
How do you restore a transparent data encryption database?
Copy the backup file and the private key file to the server where you are going to restore the Transparent data encryption (TDE) enabled database backup. Check if you have a master key on the master database already, create one if you do not have it. In this case, I do not have the master database key on the destination server.
How to restore a database from one server to another?
In order to complete a successful restore of the database, you need to copy the certificate and the private key that you backed up earlier on the source server to the destination server. However, you need to make sure that a master key is already created on the destination server.
How to delete encryption key in SQL Server?
In order to delete the database encryption key, run this script on the source database. This will delete the database encryption key that was still present on the source database. Once done, perform a backup of the source database again using the command that was used previously.
How does TDE increase the size of the encrypted database?
TDE does not increase the size of the encrypted database. When using TDE with SQL Database V12, the server-level certificate stored in the master database is automatically created for you by SQL Database. To move a TDE database on SQL Database, you do not have to decrypt the database for the move operation.
How to enable transparent data encryption ( TDE ) in SQL Server?
To encrypt a database encryption key with an asymmetric key, the asymmetric key must be on an extensible key-management provider. To enable TDE on a database, SQL Server must do an encryption scan. The scan reads each page from the data files into the buffer pool and then writes the encrypted pages back out to disk.