Encrypt Stored Procedure

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Encrypt Stored Procedure

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wertyui

Posted Wednesday, January 16, 2013 10:56 AM

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Last Login: Friday, February 08, 2013 1:35 AM
Points: 18, Visits: 76

I would like to encrypt SP, but I do not know how security different between
1 general procedure with "WITH ENCRYPTION" : display on Object Explorer windows
2 temp procedure with "WITH ENCRYPTION" : NOT display
3 temp procedure without "WITH ENCRYPTION" : NOT display

CREATE PROCEDURE EncryptSP
WITH ENCRYPTION
AS
BEGIN
	... Statement ...
END

CREATE PROCEDURE #EncryptSP
WITH ENCRYPTION
AS
BEGIN
	... Statement ...
END

CREATE PROCEDURE #EncryptSP
AS
BEGIN
	... Statement ...
END

So, I have a question that
1. Is it enough to encrypt with "WITH ENCRYPTION"?
2. Does the temp procedure both encrypt and not encrypt, can decrypt by 3rd party tools?

Post #1408005

GilaMonster

Posted Wednesday, January 16, 2013 11:23 AM

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It's not actually encryption, it's obfuscation. Give me a DB with encrypted procs, I'll give you back the decrypted versions in maybe 10 minutes, if that.

Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass

Post #1408013

wertyui

Posted Wednesday, January 16, 2013 11:38 AM

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I see, so How can I encrypt the stored procedure?

Post #1408020

GilaMonster

Posted Wednesday, January 16, 2013 12:59 PM

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You can't.

You can encrypt the entire DB with TDE, that's protection against backups been stolen. Otherwise, secure the server, limit access to SQL and make sure you have your permissions set correctly.

Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass

Post #1408049

Sean Lange

Posted Wednesday, January 16, 2013 2:55 PM

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The bigger question is what do you hope to gain by encrypting the procedure code? I doubt you are doing anything so revolutionary that you need to protect how you manipulate the data. The sql is not really very important...now the data itself is another story.

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Post #1408088

opc.three

Posted Wednesday, January 16, 2013 4:01 PM

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A plug for our sponsors:

redgate SQL Prompt can optionally decrypt objects compiled WITH ENCRYPTION for you right within an SSMS Query window. Encrypted objects appear decrypted when you hover over then and click on the quickview to see the definition.

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