using System;

using System.Security.Cryptography;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("AppID: {0} or <some-speaking-name>", Guid.NewGuid());

        Console.WriteLine("ApiKey: {0}", GenerateApiKey());

    }

    private static string GenerateApiKey()

    {

        using (var cryptoProvider = new RNGCryptoServiceProvider())

        {

            byte[] secretKeyByteArray = new byte[32]; //256 bit

            cryptoProvider.GetBytes(secretKeyByteArray);

            return Convert.ToBase64String(secretKeyByteArray);

        }

    }

}