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My new book ASP.NET Core in Action, Third Edition is available now! It supports .NET 7.0, and is available as an eBook or paperback.

Secure secrets storage for ASP.NET Core with AWS Secrets Manager (Part 1)
In this post I show how you can store your ASP.NET Core secrets securely in AWS Secrets Manager and load them into the .NET Core configuration system.…

Implementing custom token providers for passwordless authentication in ASP.NET Core Identity
In this post I show how to create 2 custom token providers for ASP.NET Core Identity, so that you can implement passwordless login with a short token expiry…

Gotchas upgrading from IdentityServer 3 to IdentityServer 4
This post covers a couple of gotchas I experienced upgrading IdentityServer 3 to IdentityServer 4. In particular, changing URLs and a validation problem.…

Migrating passwords in ASP.NET Core Identity with a custom PasswordHasher
In this post I create a custom IPasswordHasher<> implementation that can be used in ASP.NET Core Identity to support other hashing formats, such as BCrypt.…

Exploring the ASP.NET Core Identity PasswordHasher
In this post I take a look at the PasswordHasher<> implementation from the ASP.NET Core Identity framework, and how it supports multiple hashing algorithms.…

Creating and trusting a self-signed certificate on Linux for use in Kestrel and ASP.NET Core
In this post I show how to create a self-signed certificate on Linux. I show how you can trust the certificate, and how to configure Kestrel to use it.…

