Encrypting Sections in Web.config File

Posted Date: 10 Feb 2009	Resource Type: Articles	Category: .NET Framework
Author: Shankar	Member Level: Diamond
Rating:	Points: 10

This article will helps u to encrypt certain sections of the config file that are very sensitive for the webapplication.
This will hide certain valid information from unwanted users.
I had read similar kind of article in this site few days back.
But there is one more option of encrypting certain sections of the config file.
This will not register anything in the registry.
The values available in the those config sections will be encrypted.The asp.net application will itself decrypt the encrypted string and use that for running the application.

For encrypting the Connectionstrings section




aspnet_regiis.exe -pef "connectionStrings" "." -prov "DataProtectionConfigurationProvider"

For encrypting the appsettings section



aspnet_regiis.exe -pef "appSettings" "." -prov "DataProtectionConfigurationProvider"

this code can be directly executed in the visual studio command prompt or it can be written as a bat file.Then on executing the bat file this statement will be executed.

The sections are encrypted to cipher data using the windows dataprotection API's.
This encryption is also machine specific.so the encrypted file cannot be copied to another machine.so this Encryption has to be executed individually for every machine.

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