Btukfyl

I have a .net web application created using mvc entity framework.I encrypted the connectionStrings section inside aspnet_regiis.exe using developer command prompt.Following command is used for encryption :

aspnet_regiis.exe -pef "connectionStrings" "C:..webconfig path.."

The above code encrypts the connection string section inside web.config.But it throws an exception as follows:

ConfigurationErrorsException: The RSA key container could not be opened.
The error is thrown inside the following code:

public DataContext()

            : base("LEAContext")

        {

            Database.SetInitializer(new Seeder());

            Configuration.ProxyCreationEnabled = false;

        }

Connection string before encryption:

 <connectionStrings>

    <add name="LEAContext" connectionString="Data Source=.SQLExpress;Database=LEADbServer;User ID=sa;Password=pwd@123" providerName="System.Data.SqlClient" providerName="System.Data.SqlClient" />

  </connectionStrings>

Connection String After encryption :

<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>HRY3gmulN8MhNrCehjWyoBH600bGtLm0km1TvV7fCGPZjQHnST6mJ6YU4UWUr300Y9BPfhh/bwyMR2sa5zNnN4sT/XiUOCKJ6a3YvKg3LBEA/DmTWiFow5F9JllyP3OO1271l9uEuEuYcVdovqf7D3s4DWupGGi6MxFjl9tQe89HjKcvgiLYTQQp0jmFDdjcBWaXuk7ad5FENsgpTdAdUQk3zlneiq1X6NzqoA9S5v87qKIqUTwcJ6TfWvowcGqkQAh13IqtegbDwci22eoYvT/kVmsOYW38/IrHn1eaw4ZqlfH5hXJMJda9AWNyqvoYd2JILMZzZ/lHGCClfUAMlg==</CipherValue>

          </CipherData>

        </EncryptedKey>

      </KeyInfo>

      <CipherData>

        <CipherValue>abpT46oFCWxOsJ5UTkg9WAZCrYoVlQ5fRn6RqtDgQ1udN+wmWbECnBMMxftR1Zthn2NJ2Nq546Q+7z9pyaQ9bE8oczbdOYY8g7FqWvkQbPr0f4vmsXCZGgJwa0TaCT8k82CAuRTh7oo9QZOnGPoEdV8KaB1hXwDWLQkx8y5F59FdQemwZButRd/bOXg9M3yG7qF/u4i3bH5iATYVNBzSZXn7saR1ltTooQNolIxe5RD4fR3XnpYauJfu40ag97UHeQcle+I39hKp0OS/PStBctJAg0bUa1C+</CipherValue>

      </CipherData>

    </EncryptedData>

  </connectionStrings>