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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.

Customising the ASP.NET Core default UI without editing the PageModels
In this post I show how you can replace the Razor views for the ASP.NET Core Identity default UI, without having to replace the code-behind PageModels.…

Safely 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 migrate from weak hashes like MD5 or SHA1.…

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.…

