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The Common Identity Protocols

May 16, 2018by Robert Broeckelmann
  • Federation
  • Kerberos
  • OAuth2
  • OpenID Connect
  • SAML
  • Identity

I’ve written blog posts on the following identity protocols. I’m creating this post to have a central place to refer to “identity protocols”. I will periodically update this list as I publish new posts with related material.

  • SAML2 profiles (and Use Cases)
  • OAuth2
  • OpenID Connect
  • SPNEGO
  • Kerberos
  • WS-Trust
  • WS-Federation

Originally published on Medium.

More articles

Firebase API Keys: Got a Callback From A Potential Client

September 21, 2026
  • Access Tokens
  • Authentication
  • Authorization

I originally wrote this post about six months ago. Variations of this story have been published many times this year.

Read article →: Firebase API Keys: Got a Callback From A Potential Client

MCP Governance: Part2

September 21, 2026
  • LLMs
  • Model Context Protocol
  • AI

This is the second part of a series on the topic of MCP Governance. Check out MCP Governance: Part 1 to start at the beginning.

Read article →: MCP Governance: Part2

Cryptographic Commitments: I Promise I’m Not Changing My Answer

September 19, 2026
  • Identity & Access Management
  • Cryptography

There are a few cryptographic primitives that sound considerably more complicated than they actually are.

Read article →: Cryptographic Commitments: I Promise I’m Not Changing My Answer
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