What is the difference between service master key and database master key?

Question

Connections secured with the service master key cannot be restored without the service master key. Access to objects and data secured with the database master key require only the password that is used to help secure the key. 2 апр. 2021 г.

What is database master key?

The database master key is a symmetric key used to protect the private keys of certificates and asymmetric keys that are present in the database. When it is created, the master key is encrypted by using the AES_256 algorithm and a user-supplied password.

Where is the service master key stored?

The service master key is the root of the encryption hierarchy. It should be backed up and stored in a secure, off-site location. Creating this backup should be one of the first administrative actions performed on the server.

What is database encryption key?

A database encryption key is required before a database can be encrypted by using Transparent Database Encryption (TDE). When a database is transparently encrypted, the whole database is encrypted at the file level, without any special code modifications.

How do I create a database master key in SQL Server?

To create a database master key1Choose a password for encrypting the copy of the master key that will be stored in the database.2In Object Explorer, connect to an instance of Database Engine.3Expand System Databases, right-click master and then click New Query.

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