Why isn't the GenerateKey method available for my ECDiffieHellmanCng object?

Question

Documentation for the ECDiffieHellmanCng class shows a GenerateKey() method, but this method is not found/recognized in my project (Visual Studio 2019). Any thoughts on how I can get to this method?

Russ

Answer 1

Maybe you are using an old .NET Framework. Try using .NET Framework 4.8 or .NET 5 or 6. What kind of project did you create?

Answer 2

The GenerateKey method is a member of the ECDiffieHellmanCng instance.

    public static void Main(string[] args)
    {
        ECDiffieHellmanCng test = new ECDiffieHellmanCng();
        test.GenerateKey(new ECCurve());
    }

Share your code if need further assistance.

Answer 3

Yes, but it is not available for mine. Does not show up with Intellisense; if typed in completely is underlined in red and generates a Build error. It just isn't available (obviously, it is available to you). Wondering why I don't have it?

Russ

(I realize a key pair is generated when the instance is created, but I'd like to be able generate a new pair when desired.)

Russ

Answer 4

Guys, thanks for your input. I think the .net version is the problem. I noticed that the online documentation shows .net 6 for the ECDiffieHellmanCng class. While some of it seems to work with Visual Studio 2019 and .net 4, it appears that I need something newer to use the GenerateKey method. And, I see that I have to upgrade to Visual Studio 2022 in order to use .net 6. The install is underway, will know in a while if that fixes it.

Russ

Answer 5

Viorel-1,

Guess I should have tried 4.8 before upgrading to VS2022 (which I can't seem to get to give me .net 6 as an option) - turns out .net 4.8 gives me the GenerateKey() method, even with VS2019.