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This file can be downloaded from A few days ago, Microsoft also released a VS2008 SP1 Hotfix to support all Java Script files including j Query intellisense for Visual Studio 2008.Note that this hotfix works only if you have VS 2008 with SP1 or Visual Web Developer Express Edition with SP1. Net Question Answer site, specially started to allow visitors of this site ask their doubts and queries. Just click the Ask Now button and ask your question now.This article is the third and final piece of a three-part series exploring cryptographic systems and encrypting data within a Microsoft SQL Server 2005 database.We compared and contrasted symmetric and asymmetric encryption, examined SQL Server 2005's key management, and saw examples of how to use T-SQL commands to create symmetric keys and to use these keys to encrypt and decrypt data.In this article - the final one of the series - starts with a look at the T-SQL commands for performing asymmetric encryption and decryption.
The function takes the plaintext data and encrypts it using the private key of the asymmetric key specified (this is why the function asks for the password).Since only the sender has access to their own private key, the recipient can be assured that the message has not been forged or altered en route.Table 3 summarizes those SQL Server 2005 functions used for authentication and message integrity purposes .The main difference, syntactically, is that the -- use the database tempdb USE tempdb; -- create permanent temp table CREATE TABLE Certificate Temp Table ( Id INT IDENTITY(1,1) PRIMARY KEY, Plain Text NVARCHAR(100), Cipher Text VARBINARY(MAX) ); -- crate self signed certificate encrypting the private -- key with the supplied -- password CREATE CERTIFICATE Self Signed Certificate ENCRYPTION BY PASSWORD = 'Certificate Strong Password' WITH SUBJECT = 'Self Signed Certificate', EXPIRY_DATE = '12/01/2030'; -- declare and set plaintext to be encrypted DECLARE @str NVARCHAR(100); SET @str = 'Secret information...shhhhhh'; -- insert plaintext and encrypted data into the temp table, -- using the public key of the specified certificate INSERT INTO Certificate Temp Table (Plain Text, Cipher Text) VALUES(@str, Encrypt By Cert(Cert_ID('Self Signed Certificate'), @str)); -- display data in table SELECT * FROM Certificate Temp Table; -- decrypt data and display SELECT CONVERT(NVARCHAR(MAX), Decrypt By Cert(Cert_Id('Self Signed Certificate'), Cipher Text, N'Certificate Strong Password')) As Plain Text FROM Certificate Temp Table; -- delete certificate and drop table DROP CERTIFICATE Self Signed Certificate; DROP TABLE Certificate Temp Table; As discussed in An Overview of Cryptographic Systems and Encrypting Database Data, digital signatures can be used to ensure the integrity of a message or data.In particular, a sender can encrypt their message using their private key.