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\dbhome_1)(program = dg4msql)))The--------highlighting section shows that when the corresponding SID is configured on the transparent gateway, copy the highlighted paragraph and modify the corresponding sid_name.LISTENER =(Description_list =(DESCRIPTION =(address = (PROTOCOL = TCP) (HOST = 172.18.123.113) (port = 1521))----The IP address or hostname and port number of the listening server(ADDRESS = (PROTOCO
SQL Server 2014 CTP2 publishes a feature for backup, which is native backup encryption. In view of the previously bad impact on the network database leakage events, is essentially a database backup leaked to the third party, SQL Server's original data backup can make even if
decrypts the same data.
SQL Server allows these encryption capabilities to be placed in the encryption hierarchy. When SQL Server is installed, create a
(1) data to TableA ORDER by id DESC)
End
Go
When the above 1-6-step script is executed, we query the system view Sys.sql_modules to see the defined information before it is unencrypted:
Copy Code code as follows:
Select B.name as Object,b.type,a.definition
From Sys.sql_modules A
INNER JOIN sys.objects B on b.object_id=a.object_id
where B.create_date>=convert (Date,getdate ())
ORDER BY b.object_id
throw instead of raiserror.Decryption Method:In the decryption process, the most important method is exclusive or:[Character 1] is encrypted by the fn_x (x) function to [encrypted character 1]. If we know [encrypted character 1] and Query [Character 1] In turn, we can do this:[Character 1] = [character 2] ^ fn_x ([character 2]) ^ [encrypted character 1]Here is a simple example:Copy codeThe Code is as follows: -- create an encryption function (fn_x)If
SQL Server to take data to Oracle often need to use the transparent gateway provided by Oracle to achieve, before also successfully configured two times, today again when the configuration to forget how to configure before, toss a half-day a variety of errors, the internet a variety of related documents can not solve t
SQL Server 2014 CTP2 publishes a feature for backup, which is native backup encryption. In view of the previously bad impact on the network database leakage events, is essentially a database backup leaked to the third party, SQL Server's original data backup can make even if
), which is a key that encrypts and decrypts the same data.SQL Server allows these encryption capabilities to be placed in the encryption hierarchy. When SQL Server is installed, a server-level certificate named Service Master key
starts a security trip to SQL Server code with a simple two example,
1. Encryption of stored procedures (Note:
you should back up the original stored procedure before you encrypt the stored procedure, and the encryption should be done before you deploy to the production environment.) )
2. The secu
SUSER_SNAME (),
USER_NAME ()
Go
--2, remove this definition, use phrase encryption with encryptbypassphrase function encryption, and then use Sys.sp_addextendedproperty stored procedure, specify an extension name.
Use AdventureWorks
Go
DECLARE @sql VARCHAR (MAX)
SET @sql = ' CREATE PROC Test with
Tags: modify proc Name example pre Use Style server classSQL can encrypt the view. That is, you can permanently hide the text of a view definition.
Note This action is not reversible. After you encrypt the view, you cannot modify it again because the view definition is no longer visible. If you need to modify the encrypted view, you must delete it and recreate the other view.
Example code:
Create ViewUserft as
Selectusers.userid,users.
symmetric KEY Sym_demo_v2
Decryption by asymmetric KEY ASYMDEMO_V2
INSERT dbo. Pwdquestion
(CustomerID, Passwordhintquestion, Passwordhintanswer)
VALUES
(22, ' The name of the hospital you were born in? '
EncryptByKey (Key_GUID (' sym_demo_v2 '), ' Shaw Hospital '))
Close symmetric KEY Sym_demo_v2
At this point, using Decryptbykeyautoasymkey to decrypt the data requires only one action
Copy Code code as follows:
Encryption in SQL Server is hierarchical, and each upper level provides protection under. As shown in figure:
Instance:/**SMK (Service Master Key) is generated during SQL Server installation and is protected by Windows DPAPI (Data
An asymmetric key contains a database-level internal public and private key that can be used to encrypt and decrypt data in a SQL Server database, either imported from an external file or assembly, or generated in a SQL Server database. It is not like a certificate and canno
server| Encryption | system
SQL Server 2005 Encryption System (II)Immediately on the previous, and then give a paragraph with the key to encrypt data example, this code is relatively simple, rhubarb not like the ravages of Dayu sa
Introduced
An exciting feature of SQL Server 20,051 is the built-in encryption feature. In this new version of SQL Server, the development team has added cryptographic tools, certificate creation, and key management capabilities directly to T-
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