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SQL SERVER 2016 Always Encrypted

It is the new way of Data encryption introduced with SQL Server 2016 used for encrypting the sensitive date encrypted at the application layer via ADO.NET. This means you can encrypt your confidential data with the yours.NET application before the data being sent across the network to SQL Server.

Column master key:

The Column Master Key is stored on an application machine, in an external key store. This key used for protecting the column encryption key and SQL Server doesn’t have any access to this core directly

Column Encryption Key:

But this one is stored in SQL Server and it used for encrypting/decrypt the Always Encrypted column at this time the scenario of the encryption will be the first ADO.NET has decrypted the Column Encryption Key, using the Column Master Key then SQL Server use Encryption Key for encrypting/decrypt the Always Encrypted column.

1

Technical Demo:

  • Expand your DB under security you will find “Always Encrypted Keys
  • Right click create new column master key

USE [SQL2016DEMO]
CREATE COLUMN MASTER KEY [Demo_Always_Encrypted_CMK]
WITH
(
KEY_STORE_PROVIDER_NAME = N’MSSQL_CERTIFICATE_STORE’,
KEY_PATH = N’CurrentUser/My/09D607EDCEC14A9E009FC59B67E7F423DBEE9C9E’
)

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Posted by on May 30, 2016 in SQL Server 2016

 

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