troubleshooting Question

Error VB.net

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ukerandiFlag for United Kingdom of Great Britain and Northern Ireland asked on
EncryptionMicrosoft SQL Server 2008.NET ProgrammingVisual Basic.NET
4 Comments1 Solution489 ViewsLast Modified:
Hi
Following code is working FINE at my computer. im login as Db_Owner

When im runing at some collegue machine, Following error
Error
The key is not encrypted using the specified decryptor

I gave grant to run, I created Group called Group1 and add the users and give the
access as Public DB_Datareader and DB_DataReader
and also gave Following
GRANT EXECUTE ON Table1 TO [Server01\Group1]; // Table name
GRANT EXECUTE ON TestKey TO [Server01\Group1]; //stored procedure name
========================================================
Create Key code vB.net
 string TempKey = txtKeyNumber.Text.ToString();
                string strCreateSymmeticKey;
                strCreateSymmeticKey="CREATE SYMMETRIC KEY TestSymmetricKey";
                strCreateSymmeticKey=strCreateSymmeticKey+" "+"WITH ALGORITHM = AES_256";
                strCreateSymmeticKey = strCreateSymmeticKey + " " + "ENCRYPTION BY PASSWORD = '" + TempKey + "'";



                cmd.CommandText = strCreateSymmeticKey;
========================================================
Sored Procedure
========================================================
Create Procedure TestKey
@Empnumber varchar(7),
@KeyNumber nvarchar(100)
as


DECLARE @open nvarchar(4000)
SET @open = 'OPEN SYMMETRIC KEY TestSymmetricKey  DECRYPTION BY PASSWORD =' + quotename (@KeyNumber,'''')
EXEC sp_executesql @open

SELECT CONVERT(NVARCHAR(4000),DecryptByKey(salary)) FROM (SELECT *,ROW_NUMBER() OVER(PARTITION BY emp_num ORDER BY RecordDate DESC)'RowNum'  FROM Table1  )sub
WHERE RowNum = 1 and emp_num=@Empnumber
CLOSE SYMMETRIC KEY TestSymmetricKey
========================================================
Calling Code
========================================================
VB.net code
connection 1= New SqlConnection(connetionString)
connection1.open()
co1.Connection =connection
co1.CommandText="TestKey"
co1.CommandType = CommandType.StoredProcedure
co1.parameters.Add("@KeyNumber", sqlDBType.varchar).value = KeyValue1
reader=co1ExecuteReader()
Error
The key is not encrypted using the specified decryptor


Could some one show me where is the mistake or any advice highly appriciate.
Thanks
ASKER CERTIFIED SOLUTION
Vitor Montalvão
IT Engineer
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