how to encrypt and decrypt web.config in asp.net

Advertisement

In this article I will explain how to encrypt and decrypt web.config in asp.net

Before Encrypting web.config

<connectionStrings>

<add name="ConnectionString" connectionString="Data Source = DotNetSharePoint;Initial Catalog = Test;Uid = sa;Password = Password123; Integrated Security=True;" />

</connectionStrings>

I Created two methods Encript and Decrypt. We can call these methods based on conditions.

I am creating two variables

  string provider = "RSAProtectedConfigurationProvider";
  string section = "connectionStrings";

public void decrypt()

{

Configuration config = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);

ConfigurationSection confStrSection = config.GetSection(section);

if (confStrSection != null && confStrSection.SectionInformation.IsProtected)

{

confStrSection.SectionInformation.UnprotectSection();

config.Save();

}

}

public void encript()

{

Configuration config = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);

ConfigurationSection confStrSection1 = config.GetSection(section);

if (confStrSection1 != null)

{

confStrSection1.SectionInformation.ProtectSection(provider);

config.Save();

}

}

Now I am calling the encript method in page load.

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

encript()

}

}

Press F5.

Now I am checking the webconfig file with encript informtion.

<connectionStrings configProtectionProvider="RsaProtectedConfigurationProvider">

<EncryptedData Type="http://www.w3.org/2001/04/xmlenc#Element"

xmlns="http://www.w3.org/2001/04/xmlenc#">

<EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc" />

<KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">

<EncryptedKey xmlns="http://www.w3.org/2001/04/xmlenc#">

<EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-1_5" />

<KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">

<KeyName>Rsa Key</KeyName>

</KeyInfo>

<CipherData>

<CipherValue>iVkxbqB25SVzeMNZ13R2E0fHQtPSlXjBKtGwwFr2VVSwW2rkCtWDFapUYfXTA4VR7Px77VY+9H2vquc2nOHuB3fvEf8G+KL5i9TN6q1MnHQ8gTasYPCsS2n6q1iwh+B+e6Vk9EQ40HWFVuSuRRUPPNs/9YsmSQQkUH1yXFegh6M=</CipherValue>

</CipherData>

</EncryptedKey>

</KeyInfo>

<CipherData>

<CipherValue>K3Bp2BzIGww3Yv7Jb/tffENOo28r5AkBRZn264YubFlp9VmWD5vdU+FqLBf3WJEiE01jIvWV9+uMucjZxnoBklVPnxdfC8X9SZfkhsds9k0SkSGLiqdQeLzmNHxgnyuObxaR0Q4BWLN5RyXSNPgazqfRvVE2ugJMFXS3ZU5Lh/37IP5EsLwcf3VYr0MSDddB487HcIsg0VRTONz4SRsFdJPlixxk7t6cd44KcKkbr+2Y6jxPz8NhtUYSi7awJjgHTZzYEghsIpkgDr0qh09V6ZcvAN8k6uX6</CipherValue>

</CipherData>

</EncryptedData>

</connectionStrings>

If you want to Decrypt call the decrypt method in Page load.

Advertisements

SHARE

Lakshmi Tulasi Jasti

• 
• 
• 
• 
•