Encrypt Stored procedures in Sql Server 2008

Question

Encrypt Stored procedures in Sql Server 2008

zyxcba01 11808

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Points: 272
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January 10, 2011 at 5:22 am

#232026

We can use WITH ENCRYPTION option to create a stored procedure in encrypted format.
But I need to send scripts for someone to run to create the encrypted stored procedures and I do not want them to see orginal text?
Is there any way?
Could you please help me...
Thank you in Advance.

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Lowell SSC Guru Points: 323518 More actions · Answer 1

kind of... you can use this example to put together jsut a final script that executes a varbinary(max) ...so the proc body is not so obvious.

just remember that SQL Server encryption is not foolproof. any determined DBA can read your procs if they decide they want to; all you are doing is prevening prying eyes from reading it, not a determined DBA.

--totally obfuscate a command to send to the client:

Declare @cmds Nvarchar(MAX)

Declare @obfoo varbinary(MAX)

-- use this code to build the not-so-readable string of the script

Set @cmds = '

PRINT ''This binary string will execute "SELECT * FROM SYS.OBJECTS":''

SELECT * FROM SYS.OBJECTS

'

Set @obfoo = CAST(@cmds as varbinary(MAX))

--copy and paste the resulting string to the final script

Select @obfoo

--this is the portion you'd send in a script to an end user.

declare @_ as varbinary(max)

set @_ =0x0D000A005000520049004E0054002000270054006800690073002000620069006E00610072007900200073007400720069006E0067002000770069006C006C002000650078006500630075007400650020002200530045004C0045004300540020002A002000460052004F004D0020005300590053002E004F0042004A00450043005400530022003A0027000D000A00530045004C0045004300540020002A002000460052004F004D0020005300590053002E004F0042004A0045004300540053000D000A00

exec (@_)

Lowell

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zyxcba01 11808 SSC Veteran Points: 272 More actions · Answer 2

Thank you Lowell.

This is one option to hide the code little bit...

Is there any other suggesstion from anybody?

EdVassie SSC Guru Points: 60472 More actions · Answer 3

Please be aware that stored procedure 'encryption' is just obfuscation. This feature was added to SQL Server way back when Microsoft could get away with mis-naming things far more easily.

It is a simple matter to decrypt an encrypted stored procedure. Google 'sql stored procedure decrypt' for more information.

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qadirv Valued Member Points: 63 More actions · Answer 4

Not an SQL solution, but it does the job of encryprting all the procedures.

http://www.codeproject.com/Tips/239100/Encrypting-all-the-Stored-Procedures-of-a-Database