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![]() ![]() This section provides an overview of setting up Always Encrypted. Similarly, the driver transparently decrypts data, stored in encrypted database columns, contained in query results. The driver encrypts the data in sensitive columns before passing the data to the Database Engine, and automatically rewrites queries so that the semantics to the application are preserved. An Always Encrypted-enabled driver installed on the client computer achieves this by automatically encrypting and decrypting sensitive data in the client application. For more information, see Always Encrypted with secure enclaves.Īlways Encrypted makes encryption transparent to applications. Secure enclaves extend confidential computing capabilities of Always Encrypted with pattern matching, other comparison operators and in-place encryption. ![]() Such queries leverage deterministic encryption. For example, point lookup-searches or equality joins. As a result, Always Encrypted enables customers to confidently store their sensitive data in the cloud, and to reduce the likelihood of data theft by malicious insiders.Īlways Encrypted can be configured to support limited confidential queries on encrypted data, the queries that involve equality comparisons. This provides a separation between those who own the data and can view it, and those who manage the data but should have no access - on-premises database administrators, cloud database operators, or other high-privileged unauthorized users. Always Encrypted allows clients to encrypt sensitive data inside client applications and never reveal the encryption keys to the Database Engine. social security numbers), stored in Azure SQL Database, Azure SQL Managed Instance, and SQL Server databases. Applies to: SQL Server Azure SQL Database Azure SQL Managed InstanceĪlways Encrypted is a feature designed to protect sensitive data, such as credit card numbers or national/regional identification numbers (for example, U.S. ![]()
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