public static class Program
public static void Main()
var token = "Q0EyX09JQVBJOkN6JXRFM1MlMkMlZmZRUVE=";
string username = "CA2_OIAPI", password = "Cz%tE3S%2C%ffQQQ";
Encode(username, password);
public static void Decode(string token)
var creds = Encoding.UTF8.GetString(Convert.FromBase64String(token)).Split(":");
Console.WriteLine("Decoded credentials:");
Console.WriteLine($"Username: {creds[0]}");
Console.WriteLine($"Password: {creds[1]}");
public static void Encode(string username, string password)
var token = Convert.ToBase64String(Encoding.UTF8.GetBytes($"{username}:{password}"));
Console.WriteLine("Encoded credentials:");
Console.WriteLine(token);