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SQL Server Symmetric Key & Certificate based Encryption With AES_256 Algorithm

--  Create SYMMETRIC KEY  &  CERTIFICATE CREATE MASTER KEY ENCRYPTION BY PASSWORD  =   ' newPasswordForEncryption ' ; CREATE CERTIFICATE MyCertificate     WITH SUBJECT  =   ' MyCryptographyCertificate ' ; CREATE SYMMETRIC KEY MySymetricKey     WITH IDENTITY_VALUE  =   ' MyCryptoIdentityValue '   ,          ALGORITHM  =  AES_256  ,          KEY_SOURCE  =   ' $dggfg@9e& '     ENCRYPTION BY CERTIFICATE OHCertificate ; SELECT  *  FROM   sys . symmetric_keys ;   --  returns created key --  Create SYMMETRIC KEY  &  CERTIFICATE --  Create Sp to Open CLose SYMMETRIC KEY ...