Posted in Authentication

What Happens When you Type Your Password into Windows?

Published Sep 9, 2020 | Posted in Windows

Have you ever wondered what happens behind the scenes when you type your password into the Windows logon screen and hit enter? Read Article

About Steve Syfuhs

Steve Syfuhs is a developer on the Windows Cryptography, Identity, and Authentication team at Microsoft building authentication stuff for all your favorite operating systems.

Kerberos Explained in a Little Too Much Detail

Published Sep 15, 2020

Kerberos is an authenticated key agreement protocol based on the Needham-Schroeder protocol. That's too complicated -- let's break it down a little.

Read Article | Kerberos

How Authentication Works when you use Remote Desktop

Published Sep 9, 2020

Have you ever wondered how authentication works for things like Remote Desktop?

Read Article | Windows

KDC Proxy for Remote Access

Published May 27, 2020

There's a little known feature in Windows called the KDC Proxy that lets clients communicate with KDC servers over an HTTPS channel instead of TCP.

Read Article | Authentication

Why is Kerberos Terrible?

Published Dec 31, 2018

Tl;dr; It’s really not. As we build new protocols we should remember all the things we got right with Kerberos and account for all the things we got wrong.

Read Article | Authentication