![]() ![]() ![]() Besides, they already have the license for SQL Server 2012 Enterprise Edition, we might as well make the most out of it. But with the plan to move to a hosting provider, they need something that can do both because they don’t have the flexibility of keeping their existing solution. Their existing solution uses the Windows Encrypting File System feature for encrypting the disk volumes that contain the database files and TrueCrypt for the backups. ![]() They were moving their on-premise databases to a new hosting provider and wanted to make sure that the databases are protected at-rest. Back in 2013, I had a customer who wanted to implement Always On Availability Groups for their databases. In some environments, there is a requirement to protect sensitive data for security and compliance reasons. TDE will not encrypt filestreams, remote BLOB stores.I’ve deployed several SQL Server Always On Availability Groups in the past with high availability being the primary requirement. TempDB is automatically encrypted when used with an encrypted database and remains encrypted until the session ends. The certificate can then be imported into a new database with the password where the DMK is used to re-encrypt the certificate upon storage. When a certificate is exported, it is decrypted and protected with The thumbprint in the record points to the certificate needed to decrypt the DEK. The DEK is stored in the database boot record for availability during recovery scenarios. ![]() The SMK is created during installation and stored in the master database. The Master Encryption Key (MEK) is protected with a mandatory password and 3DES.Ī copy of the MEK is encrypted using the Service Master Key ( SMK) and a copy is stored in the master database. The certificate, in turn, is stored in the master database and protected with another encryption layer using a database master key ( DMK). Certificates created by SQL Server have 1024 bit private keys. The encryption will be performed using a database encryption key ( DEK). Transparent Data Encryption happens at the database-level – more specifically, I/O time encryption/decryption on all data and log files will be performed for the database under encryption. ![]()
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