How to stop decrypting data after opening master key in SQL Server?

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I have implemented data encryption using SQL Server symmetric key encryption technique using a certificate, master key with password.



When we backup database from PROD server and restore to a different server, we open the master key using OPEN MASTER KEY DECRYPTION BY PASSWORD = ''... statement.



Password for master key is being managed by a SQL admin.



After opening the master key, we are able to decrypt the column data using DecryptByKey function. However, once we have done some analysis, we want to stop decrypting the data. No developer should be able to decrypt the data after a while.



How to stop decrypting the data or close the master key so that no developer can see data in plain-text?






sql-server encryption symmetric-key







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    up vote
    1
    down vote

    favorite












    I have implemented data encryption using SQL Server symmetric key encryption technique using a certificate, master key with password.



    When we backup database from PROD server and restore to a different server, we open the master key using OPEN MASTER KEY DECRYPTION BY PASSWORD = ''... statement.



    Password for master key is being managed by a SQL admin.



    After opening the master key, we are able to decrypt the column data using DecryptByKey function. However, once we have done some analysis, we want to stop decrypting the data. No developer should be able to decrypt the data after a while.



    How to stop decrypting the data or close the master key so that no developer can see data in plain-text?






    sql-server encryption symmetric-key







    share|improve this question























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I have implemented data encryption using SQL Server symmetric key encryption technique using a certificate, master key with password.



      When we backup database from PROD server and restore to a different server, we open the master key using OPEN MASTER KEY DECRYPTION BY PASSWORD = ''... statement.



      Password for master key is being managed by a SQL admin.



      After opening the master key, we are able to decrypt the column data using DecryptByKey function. However, once we have done some analysis, we want to stop decrypting the data. No developer should be able to decrypt the data after a while.



      How to stop decrypting the data or close the master key so that no developer can see data in plain-text?






      sql-server encryption symmetric-key







      share|improve this question













      I have implemented data encryption using SQL Server symmetric key encryption technique using a certificate, master key with password.



      When we backup database from PROD server and restore to a different server, we open the master key using OPEN MASTER KEY DECRYPTION BY PASSWORD = ''... statement.



      Password for master key is being managed by a SQL admin.



      After opening the master key, we are able to decrypt the column data using DecryptByKey function. However, once we have done some analysis, we want to stop decrypting the data. No developer should be able to decrypt the data after a while.



      How to stop decrypting the data or close the master key so that no developer can see data in plain-text?






      sql-server encryption symmetric-key




      sql-server encryption symmetric-key






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 3 hours ago









      Sri

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      1399




















          1 Answer
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          The command you're looking for is CLOSE MASTER KEY;



          From docs.microsoft.com:




          This statement reverses the operation performed by OPEN MASTER KEY. CLOSE MASTER KEY only succeeds when the database master key was opened in the current session by using the OPEN MASTER KEY statement.







          share|improve this answer




















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            1 Answer
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            up vote
            3
            down vote













            The command you're looking for is CLOSE MASTER KEY;



            From docs.microsoft.com:




            This statement reverses the operation performed by OPEN MASTER KEY. CLOSE MASTER KEY only succeeds when the database master key was opened in the current session by using the OPEN MASTER KEY statement.







            share|improve this answer
























              up vote
              3
              down vote













              The command you're looking for is CLOSE MASTER KEY;



              From docs.microsoft.com:




              This statement reverses the operation performed by OPEN MASTER KEY. CLOSE MASTER KEY only succeeds when the database master key was opened in the current session by using the OPEN MASTER KEY statement.







              share|improve this answer






















                up vote
                3
                down vote










                up vote
                3
                down vote









                The command you're looking for is CLOSE MASTER KEY;



                From docs.microsoft.com:




                This statement reverses the operation performed by OPEN MASTER KEY. CLOSE MASTER KEY only succeeds when the database master key was opened in the current session by using the OPEN MASTER KEY statement.







                share|improve this answer












                The command you're looking for is CLOSE MASTER KEY;



                From docs.microsoft.com:




                This statement reverses the operation performed by OPEN MASTER KEY. CLOSE MASTER KEY only succeeds when the database master key was opened in the current session by using the OPEN MASTER KEY statement.








                share|improve this answer












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                share|improve this answer










                answered 3 hours ago









                AMtwo

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