However, upon checking the logs for any hidden errors, I have noticed a couple of lines which concern me a little. This includes migrating the master, model and msdb databases.Īll has gone smoothly, including the user databases and I can connect to the various databases after migration. Additionally the documentation on Transparent Data Encryption provides good details and shows an example of creating the Master Key in the master database but the certificate in the user database they're applying TDE to.I am doing a test SQL Server instance migration from 2017 to 2019. The database encryption key gets created in the user database you're applying TDE to and uses that global certificate from the master database.įor more information, these Microsoft Docs - SQL Server and Database Encryption Keys (Database Engine) clarify the purposes of the Master Key and where it's stored, specifically the Database master key section. The certificate also gets created in the master database so that it can be used by the user databases that you want to apply TDE to. It's pertinent it exists on your server for best security and prevention of someone gaining access to the keys of one of your TDE databases, and by Microsoft's design the Master Key lives in both the TDE database and master database. The Master Key is used to protect all your certificates' private and asymmetric keys of each TDE database. whats the difference between creating the master key and certificate in the MASTER database, and creating the master key and certificate in the database itself ( the one i'm going to use TDE)?
I'm asking this because I'm reading this redgate link and it says to backup the master key, but where would I use it?Īnd another question. Then, I enable the encryption with ALTER DATABASE SET ENCRYPTION ON.Īfter this I backup the database, and to restore in the other server, I create a certificate FROM FILE pointing the old certificate (that was CTRL+C / CTR+V to the new server).Īfter this I'm able to restore the database, without restoring the MASTER KEY or the SERVICE MASTER KEY. WITH PRIVATE KEY ( FILE ='C:\tde_backups\CERTIFICATE_I_HATE_TDE_PRIVATE_KEY.PVK',ĮNCRYPTION BY PASSWORD='123superHardPassword') TO FILE ='C:\tde_backups\CERTIFICATE_I_HATE_TDE.CER' I remember that I didn't need to restore the master key on the secondary server to restore the database.Īnd now, as I have bad memory, I'm doing dozens of tests again with sintax, backup and restore and etc to be sure we will not mess with anything after enabling TDE in the database.Īfter creating the MASTER KEY, then CERTIFICATE, then the DATABASE ENCRYPTION KEY, I just backup the CERTIFICATE as below: USE MASTERīACKUP CERTIFICATE CERTIFICATE_I_HATE_TDE I've done this in the past, and now I need to do it again.
0 kommentar(er)
