How To Implement Encryption Into Database
Jun 4, 2015
I'm currently learning how to implement Encryption into my SQL database, and I've run into something I don't know how to explain or understand. I'm working on creating a set encryption for a set of columns in a database, and I don't know how to figure out what size the VARBINARY column needs to be. After some trial and error, I've noticed that a clear text of 9 characters needs 68 varbinary characters, 100 cleartext=148 varbinary, and 254 cleartext= 308 varbinary characters. How is the minimum number of varbinary characters calculated?
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Dec 28, 2007
Hi Guyz
it is taken from SQL2K5 SP2 readme.txt. Anyone have idea what to do to implement this ?
Our sp2 is failing. we suspect the above problem and researching it.we are running on default instance of SQL2K5 on win2003 ent sp2
"When you apply SP2, Setup upgrades system databases. If you have implemented restrictions on the ALTER DATABASE syntax, this upgrade may fail. Restrictions to ALTER DATABASE may include the following:
Explicitly denying the ALTER DATABASE statement.
A data definition language (DDL) trigger on ALTER DATABASE that rolls back the transaction containing the ALTER DATABASE statement.
If you have restrictions on ALTER DATABASE, and Setup fails to upgrade system databases to SP2, you must disable these restrictions and then re-run Setup."
thanks in advance.
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Feb 15, 2007
I have two servers, using SQL server 2000.I was asked for implementing hourly Backup 3 databases in one serverand restore those databases to another server.Could anyone give me the detailed steps to do that?Thanks a lot in advance!
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Dec 6, 2003
Hi,
I am trying to call a stored procedure to insert into my database. After I called Open(), it crashed on ExecuteNonQuery(). I get the following message.
Object must implement IConvertible.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidCastException: Object must implement IConvertible.
Source Error:
Line 160:Try
Line 161:myConnection.Open()
Line 162:myCommand.ExecuteNonQuery()
Line 163:myConnection.Close()
What does this mean? If anyone encountered this error before, please let me know how to trace the error and fix it.
Thanks Gurus,
John
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Dec 22, 2013
We need to implement incremental load in database. A sample scenario is, there is a view (INCOMEVW) which is build on top of a query like
CREATE VIEW INCOMEVW
AS
SELECT CLIENTID,COUNTRYNAME,SUM(OUTPUT.INCOME) AS INCOME
(SELECT EOCLIENT_ID AS CLIENTID,EOCOUNTRYNAME AS COUNTRYNAME,EOINCOME AS INCOME FROM EOCLIENT C INNER JOIN EOCOUNTRY CT ON
C.COUNTRYCODE=CT.COUNTRYCODE
[code]...
This is a sample view. As of now there is a full load happening from the source(select * from INCOMEVW) and loads to target table tbl_Income.We need to pick only the delta and load to the target table using a staging. The challenge is,
1) If we get the delta(Insert,update or deleted rows in the source tables EOCLIENT,EOCOUNTRY,ENCLIENT,ENCOUNTRY, how to load the incremental to
single target table tbl_Income.
2) How to do the Sum operation with group by in incremental load?
3) We are planning to have a daily incremental load and thinking to create the same table structure as source with Date and Flag column to identify
the date and whether that source row is an Insert or Update or Delete with the flag. But not sure how to frame something like this view and load to single target with Sum operations.
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Sep 3, 2014
I did tried the encryption on server "A" for database "AdventureWorks2012". Then I tried to restore to server "B". There was the certificate issue, and I thought "of course : it's encrypted ! Let's deactivate it". So here I go "ALTER DATABASE AdventureWorks2012 SET ENCYRPTION OFF".I look at sys.databases : not encrypted.I backup using no encryption, I verify using msdb.dbo.backupset : not encrypted.
I move my backup to my other server where encryption was never configured (so no certificate, nothing...), and I have the error :
Msg 33111, Level 16, State 3, Line 1
Cannot find server certificate with thumbprint '0xFA130E58C999C4919B8975999C83A75A403B11D8'.
Msg 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
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Oct 7, 2015
I have created two user defined functions for encryption and decryption using passphrase mechanism. When I call encryption function, each time I am getting the different values for the same input. While I searching a particular value, it takes long time to retrieve due to calling decryption function for each row.
best way to encrypt and decrypt using user defined functions.Below is the query which is taking long time.
SELECT ID FROM table WITH (NOLOCK)
WHERE dbo.DecodeFunction(column) = 'value'
When I try to use symetric or asymetric encryption, I am not able to put "OPEN SYMETRIC KEY" code in a function. So, I am using PassPhrase mechanism.
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Aug 2, 2007
Hi,
i am trying to encrypt my database using dbEncrypt software.The encryption provides role based access ot the database.In that case developer can not call any stored procedure of that database. These two are conflicting things. Can anyone suggest me a way so that i can access the stored procedure through my code by checking the roles from the front end. is it possible??
Please reply soon.
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Aug 1, 2007
Hi,
i want to encrypt my database(sql server2005) fully. Can anyone suggest me any third party tool or any other method.
Please its urgent.
Thanx in advance:(
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Aug 7, 2007
Hi,
I am trying to encrypt my database using some softwares, For that i have to install the software and encrypt database accordingly, i have a querry that will my database remain encrypted if i uninstall the encryption software??
The software i am using are dbEncrypt,Netlib,XP_Crypt,Rsa Bsafe.
Thanx
Divya
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Jul 20, 2005
is there a way to encrypt a propriatary database so that it may not betampered with except for those who hold the key?
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Jun 26, 2007
Hello I just want make sure: There is no encryption of the whole database.I assume this, because I have found only the themes "encryption for connections" and "encrypted columns"Why this question:
A lot of customer ask for this (maybe without further knowledge)
We've got a merge replication with offline laptops.
So, if one of this laptops get lost, it would calm people if the data were encrypted.I'd be very thankful for a fast reply, as my boss is in a meeting with such customers.Kind regardsAline
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Jun 3, 2001
We are planning to store the pin number in a sqlserver table. This column has to be encrypted and stored in the database. As new records are added this column needs to encrypted automatically. Please advise me of any tools.
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Oct 26, 2006
Hi!
Could you help me how could I encrypt an SQL Express database with a password?
The lines I currently use:
ssconn.ConnectionString = "Data Source=.SQLEXPRESS;Integrated Security=True;"
CreateDatabase = "CREATE DATABASE i ON (NAME = i, FILENAME = '" & ssceconfilename & "')"
Dim myCommand As New SqlCommand(CreateDatabase, ssconn)
myCommand.ExecuteNonQuery()
I intend to encrypt the whole database structure so that nobody could see in.
I managed to do the encryption with SQL CE 2.0, but how to do it with express?
Thank you!
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Oct 26, 2006
Hi!
Could you help me how could I encrypt an SQL Express database with a password?
The lines I currently use:
ssconn.ConnectionString = "Data Source=.SQLEXPRESS;Integrated Security=True;"
CreateDatabase = "CREATE DATABASE i ON (NAME = i, FILENAME = '" & ssceconfilename & "')"
Dim myCommand As New SqlCommand(CreateDatabase, ssconn)
myCommand.ExecuteNonQuery()
I managed to do the encryption with SQL CE 2.0, but how to do it with express?
Thank you!
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Jul 15, 2015
I'm a newbie to SQL and I inherited a 2008 R2 Sql server with about 20 different databases on it. I've noticed that more than half of the databases are encrypted and I was looking to encrypt the rest but for some reason I am unable to do so. I'm assuming I already have a master key created but when I go to Options of the DB and change Encryption Enabled from False to True I get and error, "Cannot change database encryption state because no database encryption key is set." How I could use my existing key to encrypt the databases or would I have to create a separate key for each db?
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Jun 7, 2007
Hi,
I want to backup my database at regular intervals and encrypt it. Also I want to verify the back up. How do I do it?
I want the back ups to run every fortnight.
Thanks.
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Mar 14, 2006
Hi
Can anyone help?
I have a database using encryption with symmetric keys created using asymmetric keys.
I backed up this database and restored it on another machine along with the service master key.
I can read the encrypted data fine. But all the encrypted stored procs that are associated with the application that uses the data cannot read the data, they just return Nulls.
If I regenerate all the encrypted stored procs from script they work fine again.
Is there a way to restore the database without having to regenerate all the encrypted procs??
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Dec 20, 2000
Hi,
i need to know how to encrypt a field in the sql server database.
I want to hide some text field in a user defined table.
thanks in advance.
regards
mihir
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Mar 17, 2000
Hi,
Does anyone know how to encrpyt a field in a table created in SQL Server Database.
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Jan 16, 2008
Data encryption and database restores.
1. When using data encryption on a 2 node active/passive cluster does it make any difference which server the sqlserver is running on when encrypting or dcrypting data?
2. When restring a database to a different server with encrypted data is the data decrytable or is it lost?
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Oct 30, 2007
I would like to force only certain users on certain databases to use encrypted connections for accessing our 2005 SQL Server. I've found a clunky way to do it, via registering a login event notification and using the kill statement. However, that's ugly, and I don't think there is any guarantee that the event will always fire before an evil client could get off a few evil commands. Is this supported, or is the only supported feature the forceencryption option, which is server-wide?
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Sep 22, 2014
How can I create encryption on database ?. When I try to apply encryption on my database then it showing error message below....
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May 4, 2015
I have created mirroring... one of the column is encrypted on mirror database and I can see the decrypted result when I do query when I actually logged into server (through remote connection) but when I use the same query through using SSMS from my laptop the query result come as the column is not decrypted,
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Jun 16, 2006
My MS-SQL 2000 Database have 50 more Stored Procedure .How to FAST and EASY ENCRYPTION ALL Stored Procedure in my MS-SQLDatabase?
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Jun 4, 2015
I have to disable newly implemented database encryption. It's a necessity unfortunately. Can I do this during production hours without much of a hit? I know I have to restart the instance after it's done. Can I expect performance impacts or other issues?
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Oct 12, 2007
I have code that creates a SQL Mobile database on a server. It has worked in many environments, but I have one customer experiencing an issue. It will not create the database on their server. I would appreciate any thoughts.
The exact error message I get is "the operating system does not support encryption"
I am getting it on the line: SQLCeEngine.CreateDatabase()
Here is the code:
SQLCeEngine = New SqlServerCe.SqlCeEngine(SQLConnectionString)
ReturnValue += ": Declare new"
SQLCeEngine.CreateDatabase()
ReturnValue += ":Create"
SQLCeEngine.Dispose()
ReturnValue += ": Dispose"
Here is the error message I get from our application- the part after Err: is the actual error message from the system:
Data Source = D:EVADATAWebServiceDownloads est;Password=test;Persist Security Info=False;: Declare new:Error!:Err:The operating system does not support encryption.
When I go into SQL Express and create a SQL Mobile database using it, it can be created. So, I have to believe it can be done on the server, but I don't know why the code can not do it.
(e.g. FileConnect Object ExplorerServer Type: SQL Server compact Edition and create a database). The database is successfully created if I do it manually this way. It even creates fine if I select the 'Encrypt' button.
The machine is a Windows 2000 Server sp4 version 5.00.2195
SQL 2000 is installed
SQL 2005 Express is installed
I ran the SQLServerCE31-EN.msi file and it is installed. (I have also re-run and repaired it)
I have also copied over the newest version of our code from scratch.
SQL Server mgmt Studio: 9.00.3042.00
MDAC 2000.085.1128.00
MSXML 2.3 3.1 4.0 5.0 6.0
IE 6.0.2800.1106
.NET Framework 2.0.50727.42
Operating System 5.0.2195
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Oct 12, 2007
I have created an .sdf database on my Desktop - and am able to open and close it just fine from my application program.
Whenever I try to:
Open it with the same program but installed on a different PC,
or:
Open it from a program running as a service on the development PC, I get the error
"The operating system does not support the Encryption Mode provided."
The working above is from the Version 3.5 Beta, but the same problem occurs with Version 3.1.
The Error code in Hex is 80004005
I can't find any reference to fixing this error - any ideas?
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Jan 16, 2008
I want to perform column level and database level encryption/decryption....
Does any body have that code written in C# or VB.NET for AES-128, AES-192, AES-256 algorithms...
I have got code for single string... but i want to encrypt/decrypt columns and sometimes the whole database...
Can anybody help me out...
If you have Store procedure in SQL for the same then also it ll do...
Thanks in advance
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Apr 12, 2005
Hi all,
I had many groups of data which column A store number & column B store location. My syntax as below :-
select count(columnA) as no, columnB from table group by columnB
No columnB
20 A
10 B
5 C
How can I select 5 rows for Each ColumnB? (total 15 rows of record)
Thanks!
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Feb 29, 2008
hi friends....... I have one doubt. how can we use cursor in sql. in oracle they implement cursors on stored procedure, can we implement same concept in sql stored procedure...regards Samuel chandradoss . J
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Apr 1, 2008
Hi,
I have place an question, but in some other place in the same forum.
My apologies for that
I wanted to implement mirroring
I hereby let u know the steps
1. Created a database in Principal server named Mirror1 and one table named tblMirror1.( no values inside the table)
2. Repeated the same in Mirror in Witness
3. Selected the Principal server's database -->right click-->tasks-->mirror
4. from the left hand panel selected Options -->recovery model-->full
5. selected Mirroring from left hand panel-->configure secuirty-->entered mirror and witness name--Success
6. When I click on start mirroring I have an error stating
" Alter failed for database mirror1"
"Database mirroring cannot be enabled because Mirror1 database may have bulk logged changes that have not been backed up etc...."
7. followed this one
BACKUP database mirror1 TO DISK='C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK'
got the answer as
Processed 160 pages for database 'mirror1', file 'Mirror1' on file 2.
Processed 1 pages for database 'mirror1', file 'Mirror1_log' on file 2.
BACKUP DATABASE successfully processed 161 pages in 0.318 seconds (4.147 MB/sec).
According to sources
Run a restore of this backup on your mirror.
This can be done through the GUI or using a T-SQL command.
The database restore must use the NO RECOVERY option, so the database stays in a loading state.
Also the database name on the mirror must be the exact same name as the principal
RESTORE TestMirror FROM DISK='C:Backup TestMirror_FULL.BAK' WITH NORECOVERY
Hence did the below
RESTORE database mirror1 FROM DISK='C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK' WITH NORECOVERY
ERROR
Msg 3201, Level 16, State 2, Line 1
Cannot open backup device 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK'. Operating system error 2(The system cannot find the file specified.).
Msg 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
HENCE MODIFIED AS
use master
go
RESTORE database mirror1 FROM DISK='C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK' WITH NORECOVERY
Msg 3201, Level 16, State 2, Line 1
Cannot open backup device 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK'. Operating system error 2(The system cannot find the file specified.).
Msg 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
Please let me know what shuld i modify
regards
cmrhema
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Sep 19, 2013
Just wondering if there was a way to implement a one is to zero or many relationship with sql or can you only have a one is to one or many?
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