C# using DPAPI to read data from Registry

This would be the second part of the blog post where we used powershell to store some secure data into our registry and have used DPAPI to encrypt the data. I wanted to cover how I would read the data back from the registry in my C# application. An example of C# using DPAPI to read data from Registry.
Feel free to read the blog post on Powershell using DPAPI to store secure data in Registry

C# using DPAPI to read data from Registry

I will be using a Console application with .NET Framework 4.6 just to show how I would read the registry and use System.Security.Cryptography to decrypt the data.

class Program
    {
        static void Main(string[] args)
        {

            var key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Wow6432Node\MySoftware\Data\");
            if (key != null)
            {
                var cipher = (string) key.GetValue("SecureDataKey");

                var hashedBytes = Convert.FromBase64String(cipher);

                var exportedData = Encoding.Unicode.GetString(hashedBytes);

                var length = exportedData.Length / 2;
                var encryptedData = new byte[length];
                for (int index = 0; index 
If we run this application we will see the data that we have stored in the registry.


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