What is the use of the always Encrypted capability in SQL Server 2016?
Always Encrypted is a new feature in SQL Server 2016, which encrypts the data both at rest *and* in motion (and keeps it encrypted in memory). So this protects the data from rogue administrators, backup thieves, and man-in-the-middle attacks.
What is always Encrypted with secure enclaves?
Always Encrypted with secure enclaves addresses these limitations by allowing some computations on plaintext data inside a secure enclave on the server side. A secure enclave is a protected region of memory within the Database Engine process.
How are columns encrypted in SQL Server 2016?
Database Engine only stores information about the location of column master keys which are stored in external trusted key stores. Thus, SQL Server cannot decrypt the Always Encrypted data by itself. Column Encryption Key, is stored on the SQL Server. It is used to encrypt/decrypt the Always Encrypted columns
What are the benefits of always encrypted SQL Server?
Always Encrypted provides confidential computing capabilities by enabling the Database Engine to process some queries on encrypted data, while preserving the confidentiality of the data and providing the above security benefits.
Do you need master key for always encrypted columns?
You must have at least one master key before encrypting any columns. Column Encryption Key – this is the encryption key that actually protects that encrypted columns. Deterministic – always encrypts to the same ciphertext, so can be used for certain operations (point lookups, distinct, group by) and can be indexed.
Is there a way to encrypt a column?
The syntax for specifying encryption on a column is a bit cumbersome. As I mentioned earlier, only one encryption algorithm is supported, and it’s quote a mouthful: AEAD_AES_256_CBC_HMAC_SHA_256. Also, any columns using string data types that use deterministic encryption must use one of the BIN2 collations.