Tag Archives: Security

Is a SPA less secure than a server rendered web application?

In this post, I try to explain some of the differences between a single page application and a server rendered application and why the application types have different threat models. What is an Single Page Application (SPA)? A single page application runs in the browser, and handles routing in the client without posting back to […]

Using Azure Key Vault with ASP.NET Core and Azure App Services

This article shows how to use an Azure Key Vault with an ASP.NET Core application deployed as an Azure App Service. The Azure App Service can use the system assigned identity to access the Key Vault. This needs to be configured in the Key Vault access policies using the service principal. Code: https://github.com/damienbod/AspNetCoreBackChannelLogout Posts in […]

Implementing User Management with ASP.NET Core Identity and custom claims

The article shows how to implement user management for an ASP.NET Core application using ASP.NET Core Identity. The application uses custom claims, which need to be added to the user identity after a successful login, and then an ASP.NET Core policy is used to authorize the identity. Code: https://github.com/damienbod/AspNetCoreAngularSignalRSecurity Setting up the Project The demo […]

OAuth using OIDC Authentication with PKCE for a .NET Core Console Native Application

This article shows how to use a .NET Core console application securely with an API using the RFC 7636 specification. The app logs into IdentityServer4 using the OIDC authorization code flow with a PKCE (Proof Key for Code Exchange). The app can then use the access token to consume data from a secure API. This […]

Supporting both Local and Windows Authentication in ASP.NET Core MVC using IdentityServer4

This article shows how to setup an ASP.NET Core MVC application to support both users who can login in with a local login account, solution specific, or use a windows authentication login. The identity created from the windows authentication could then be allowed to do different tasks, for example administration, or a user from the […]

Comparing the HTTPS Security Headers of Swiss banks

This post compares the security HTTP Headers used by different banks in Switzerland. securityheaders.io is used to test each of the websites. The website of each bank as well as the e-banking login was tested. securityheaders.io views the headers like any browser. The tested security headers help protect against some of the possible attacks, especially […]

Adding HTTP Headers to improve Security in an ASP.NET MVC Core application

This article shows how to add headers in a HTTPS response for an ASP.NET Core MVC application. The HTTP headers help protect against some of the attacks which can be executed against a website. securityheaders.io is used to test and validate the HTTP headers as well as F12 in the browser. NWebSec is used to […]