Setup SelftSigningCertificate x509 in asp.net core blazor wasm

Question

How to setup x509 self signed certificate in asp.net core 7.0 with blazor wasm

here is my program.cs server project asp.net core
I tried to go through docs of Microsoft but didn't understand what code and where to put.

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddSignalR();
// Add services to the container.
var connectionString = builder.Configuration.GetConnectionString("DefaultConnection") ?? throw new InvalidOperationException("Connection string 'DefaultConnection' not found.");
builder.Services.AddDbContext<ApplicationDbContext>(options =>
    options.UseSqlServer(connectionString));
builder.Services.AddDatabaseDeveloperPageExceptionFilter();

builder.Services.AddDefaultIdentity<ApplicationUser>(options => options.SignIn.RequireConfirmedAccount = false)
    .AddEntityFrameworkStores<ApplicationDbContext>();

builder.Services.AddIdentityServer()
    .AddApiAuthorization<ApplicationUser, ApplicationDbContext>();

builder.Services.AddAuthentication()
    .AddIdentityServerJwt();
builder.Services.Configure<GzipCompressionProviderOptions>(options =>
{
    options.Level = CompressionLevel.Fastest;
});
builder.Services.AddResponseCompression(option =>
{
    option.MimeTypes = ResponseCompressionDefaults.MimeTypes.Concat(new[] { "application/octet-stream" });
});
builder.Services.AddControllersWithViews();
builder.Services.AddRazorPages();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseMigrationsEndPoint();
    app.UseWebAssemblyDebugging();
}
else
{
    app.UseExceptionHandler("/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseResponseCompression();
app.UseBlazorFrameworkFiles();
app.UseStaticFiles();

app.UseRouting();

app.UseIdentityServer();
app.UseAuthorization();


app.MapRazorPages();
app.MapControllers();

app.MapFallbackToFile("index.html");

app.Run();

Answer 1

Setting up a self-signed X509 certificate in an ASP.NET Core 7.0 project with Blazor WebAssembly involves a few steps. Let me guide you through the process.

1. First, you need to generate a self-signed certificate. You can use the `openssl` command-line tool or a tool like the Windows Certificate Manager to generate the certificate.

2. Once you have the certificate, save it to a specific location on your server project. For example, you can create a folder named "Certificates" in your project's root directory and save the certificate there.

3. Open the `Program.cs` file in your server project. This file is typically located in the root folder of your ASP.NET Core project.

4. In the `Program.cs` file, add the following code to configure the HTTPS options:

```csharp
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Hosting;
using System.Net;

public class Program
{
    public static void Main(string[] args)
    {
        CreateHostBuilder(args).Build().Run();
    }

    public static IHostBuilder CreateHostBuilder(string[] args) =>
        Host.CreateDefaultBuilder(args)
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder.UseStartup<Startup>();
                webBuilder.UseKestrel(options =>
                {
                    options.Listen(IPAddress.Any, 5000); // Change the port number to the one you want to use
                    options.Listen(IPAddress.Any, 5001, listenOptions =>
                    {
                        listenOptions.UseHttps("<path to your certificate.pfx>", "<certificate password>");
                    });
                });
            });
}

Make sure to replace <path to your certificate.pfx> with the actual path to your self-signed certificate file. Also, replace <certificate password> with the password you used when generating the certificate.

5. Save the Program.cs file.

After completing these steps, your ASP.NET Core server project should be configured to use the self-signed X509 certificate for HTTPS. Remember to replace the port number and certificate path and password with your actual values.

I hope this helps you configure the X509 self-signed certificate in your ASP.NET Core 7.0 project with Blazor WebAssembly. Let me know if you have any further questions!