What Is Digital Privacy?
Privacy (and Digital Privacy) is one of those terms that I’ve thrown around a lot in the last few years. However, I never took the time to define it.
Static Credentials Must Not Be Used In The Browser
Authentication is described in this post.
Kerberos and Windows Security: Delegation
In this next post in the Kerberos and Windows Security Series, we are going to explore a very useful, but abstract feature of the Kerberos Authentication Protocol: Delegation. In particular, we are going to focus on the Windows implementation of this feature. Delegation allows downstream actors to…
OAuth2 Access Tokens vs API Keys — Using JWTs
There are several approaches to securing APIs. Every API Gateway vendor supports the same core set of API security mechanisms. API Keys and OAuth2 are two examples of these authentication (plus authorization) mechanism. When should one be used over the other? What are the differences between the…
Identity Protocols, Hosted Login UIs, and Custom Login UIs
There are many ways to implement user authentication in a modern application (mobile, desktop, tablet, web, etc). I have previously explored Authentication, Federation, and SSO; that post introduces several key concepts that are assumed here. At the intersection of user experience, authentication,…
Red Hat SSO v7.1 OAuth2 Resource Owner Password Credential Grant Support
In this post, we will look at an example of the OAuth2 Resource Owner Password Credential Grant using Red Hat SSO v7.1. In previous posts, I described the Red Hat SSO setup for OpenID Connect authentication and OAuth2. We have also looked at examples of:
OAuth2 Implicit Grant with Red Hat SSO v7.1
In my last post, we looked at how to configure Red Hat SSO v7.1 for OpenID Connect. That post also introduced a web-based OAuth2 + OIDC debugger and the OIDC Authorization Code Authentication Flow. The Red Hat SSO configuration that was created in that post also allows the OAuth2 Implicit Grant to…
What is Authorization?
In a previous post, I gave a definition of Authentication. In this post, we’re going to explore authorization, which is typically the next step in the processing pipeline after authentication. The concepts described here can apply equally to traditional web applications, SPA apps, mobile apps,…
Summary of Azure Active Directory OAuth2 Authorization Grant and OIDC Authentication Flow Uses
A while back I needed a summary of which protocols were supported/recommended in different situations by Azure Active Directory while I was researching the “When To Use Which (OAuth2) Grants and (OIDC) Flows” post. So, I am summarizing it here.
Authentication vs. Federation vs. SSO
Authentication. Federation. Single Sign On (SSO). I’ve mentioned these concepts many times. I haven’t actually formally defined what each of these terms mean even though I’ve used these many times throughout my writing — these concepts are closely related.
OpenID Connect Logout
The OpenID Connect (OIDC) family of specs supports logout (from a single application) and global (or single) logout (from all applications that the user has logged into through the OpenID Provider, OP), but these features are optional or in draft status (as of Q2, 2017). So, these spec features may…
SAML2 vs JWT: Understanding OpenID Connect Part 3
In part 1 and part 2 of Understanding OpenID Connect, core concepts and the first Authentication Flow (Authorization Code Grant Flow) were introduced. In part 3, we look at the remaining Authentication Flows (Implicit Flow and Hybrid Flow) and some other features of the OIDC specification.