How To Encrypt The Stored Procedure ?

Feb 17, 2008

Hi,

I would like to know that how can I encrypt a stored procedure, so that it can not be decrypt by me or not by any one ? I have tried using the SQL encrypt,but there is a decrypt command which decrypt the same. I do not want any one to decrypt without a password or encrypt the stored procedure so that it can never be decrypted.

Thanking you,

 Regards..Jay

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Encrypt A Stored Procedure.

Feb 2, 2004

How might I encrypt a stored procedure in SQL server.

In sybase this is done with SP_HIDETEXT but SQL server doesn't appear to have this.

Is there another way?

Thanks,

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How to encrypt the Text Of Stored Procedure
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I am trying to insert data in a table using a stored procedure, but somehow I cannot store the values passed by the stored procedure in the table.

Table has two fields FIRST_NAME, LAST_NAME with varbinary data type(I need to encrypt the data)

My stored procedure is as follows. Please let me know what i am doing wrong!

***************************************************************

ALTER PROCEDURE [dbo].[SP_InsertInfo]
-- Add the parameters for the stored procedure here

@FIRST_NAME varBINARY(100)
,@LAST_NAME varBINARY(100)

AS
OPEN SYMMETRIC KEY key DECRYPTION BY CERTIFICATE cert

BEGIN

SET NOCOUNT ON;

-- Insert statements for procedure here


Insert into [dbo].[INFO] (FIRST_NAME, LAST_NAME)
Values ( encryptbykey( key_guid('key'),'@FIRST_NAME'),
encryptbykey( key_guid('key'),'@LAST_NAME')
)
close SYMMETRIC KEY key

END

**********************************************
EXEC sp_InsertInfo 'larry', 'Smith'

when I run the SP, the data stored in the first_name, last_name fields are @FIRST_NAME', @LAST_NAME' instead of larry, smith respectively.

Thanks

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Apr 4, 2007

Hi,



I'm trying to use a stored procedure to encrypt data but it dosent work fine, this is how I proceeded and that worked well




Code Snippet

CREATE PROCEDURE [dbo].[UpdateUser]



@CardNumber nvarchar(max),

@UserID int

AS

BEGIN



SET NOCOUNT ON;





DECLARE @SecretData varbinary(max)



OPEN SYMMETRIC KEY MY_SYMMETRIC_KEY

DECRYPTION BY CERTIFICATE [MY_CERTIFICATE]



DECLARE @KeyGuid AS UNIQUEIDENTIFIER

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SET @SecretData = encryptbykey( @KeyGuid, @CardNumber)



UPDATE User

SET

CardNumber=@SecretData

Where UserID=@UserID





CLOSE SYMMETRIC KEY MY_SYMMETRIC_KEY



END





but Now I use my Stored Procedure to encrypt the data, but I'm getting bad data when I decrypt.






Code Snippet

CREATE PROCEDURE [dbo].[UpdateUser]



@CardNumber nvarchar(max),

@UserID int

AS

BEGIN





SET NOCOUNT ON;



DECLARE @SecretData varbinary(max)



exec EncryptData @CardNumber, @SecretData output



UPDATE User

SET

CardNumber=@SecretData



Where UserID=@UserID



END






Code Snippet

CREATE PROCEDURE [EncryptData]

@ClearData varchar(max),

@SecretData varbinary(max) output

WITH EXECUTE AS 'DBO'

AS

BEGIN



OPEN SYMMETRIC KEY MY_SYMMETRIC_KEY

DECRYPTION BY CERTIFICATE [MY_CERTIFICATE]



DECLARE @KeyGuid AS UNIQUEIDENTIFIER

SET @KeyGuid = key_guid( 'MY_SYMMETRIC_KEY')

SET @SecretData = encryptbykey( @KeyGuid, @ClearData)



CLOSE SYMMETRIC KEY My_SYMMETRIC_KEY

END



Any Idea how to fix this issue



Thanks in advance.

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(1) /////--spTopSixAnalytes.sql--///

USE ssmsExpressDB

GO

CREATE Procedure [dbo].[spTopSixAnalytes]

AS

SET ROWCOUNT 6

SELECT Labtests.Result AS TopSixAnalytes, LabTests.Unit, LabTests.AnalyteName

FROM LabTests

ORDER BY LabTests.Result DESC

GO


(2) /////--spTopSixAnalytesEXEC.sql--//////////////


USE ssmsExpressDB

GO
EXEC spTopSixAnalytes
GO

I executed them and got the following results in SSMSE:
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2 220.30 ug/Kg Acetone
3 211.90 ug/Kg Acetone
4 140.30 ug/L Acetone
5 120.70 ug/L Acetone
6 90.70 ug/L Acetone
/////////////////////////////////////////////////////////////////////////////////////////////
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//////////////////--spTopSixAnalytes.vb--///////////

Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim sqlConnection As SqlConnection = New SqlConnection("Data Source = .SQLEXPRESS; Integrated Security = SSPI; Initial Catalog = ssmsExpressDB;")

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'of the DataSet class.

Dim dataSet As DataSet ("ssmsExpressDB")

sqlConnection.Open()

sqlDataAdapter.Fill(DataSet)

sqlConnection.Close()

End Sub

End Class
///////////////////////////////////////////////////////////////////////////////////////////

I executed the above code and I got the following 4 errors:
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Error #2: Type 'SqlDataAdapter' is not defined (in Form1.vb)
Error #3: Array bounds cannot appear in type specifiers (in Form1.vb)
Error #4: 'DataSet' is not a type and cannot be used as an expression (in Form1)

Please help and advise.

Thanks in advance,
Scott Chang

More Information for you to know:
I have the "ssmsExpressDB" database in the Database Expolorer of VB 2005 Express. But I do not know how to get the SqlConnection and the SqlDataAdapter into the Form1. I do not know how to get the Fill Method implemented properly.
I try to learn "Working with SELECT Statement in a Stored Procedure" for printing the 6 rows that are selected - they are not parameterized.




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The above stored procedure is related to a search screen where in User is able to search from a variety of fields that include userID (corresponding column Batch.Created_By) and batchID (corresponding column Batch.BatchID). The column UserID is a varchar whereas batchID is a numeric.
REQUIREMENT:
The stored procedure should cater to a typical search where any of the fields can be entered. meanwhile it also should be able to do a partial search on BatchID and UserID.
 
Please help me regarding the same.
 
Thanks in advance.
 
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(

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WHERE SiteRef.BalancePoolName = @PoolName And AccountBalance.DateX = @DT
Order By AccountBalance.DateX DESC

Any assistance would be greatly appreciated.
Thank you,
Dave

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Alter PROCEDURE [dbo].[sp_GetIdeaByCategory]
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BEGIN
SET NOCOUNT ON;

Select I.*, C.*, U.* From Idea I inner join IdeaCategory C on I.CategoryID = C.IdeaCategoryID inner join Users U on I.UserID = U.UserID Where I.CategoryID = @CatId Order By LastModifiedDate Desc
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