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Advanced OAuth 2.0 Topics

Course Description

Almost every company that exposes an API is moving toward using OAuth 2.0 as a delegation framework. Therefore, OAuth 2.0 is still under active development, and a wide variety of complex deployment scenarios are supported. In this course, we investigate various addendums to OAuth 2.0 that lift the security of almost all OAuth 2.0 aspects.

Learning Objectives

  • Describe the technical requirements for proactively revoking OAuth 2.0 tokens
  • Explain the challenges of token theft and the potential solutions in the OAuth 2.0 ecosystem
  • Mitigate subtle weaknesses in OAuth 2.0 flows by leveraging new specifications
  • Analyze the requirements for implementing a delegation scenario
  • Assess whether traditional scopes suffice for user consent, and recognize which more fine-grained mechanisms might be more appropriate

Details

Delivery Format: eLearning

Duration: 2 Hours

Level: Advanced

Intended Audience:

  • Architects
  • Back-End Developers
  • Mobile Developers

Prerequisites

Course Details

Introduction

  •  Advanced Scenarios

Strong Client Authentication Mechanisms

  • The Concept of Key-Based Client Authentication
  • Key-Based Client Authentication with mTLS
  • Key-Based Client Authentication with JWTs

Client-Based Token Revocation

  • The Need for Token Revocation
  • The Token Revocation Endpoint
  • Considerations for Token Revocation

Using Resource Indicators

  • Typical OAuth 2.0 Access Tokens
  •  Using Resource Indicators
  • Practicalities for Using Resource Indicators

Strengthening Bearer Tokens

  • Strengthening Bearer Tokens with Proof-of-Possession
  • Transport-Layer Proof-of-Possession with TLS
  • Application-Level Proof-of-Possession with DPoP
  • Handling Sender-Constrained Tokens

Delegation in OAuth 2.0 Architectures

  • Impersonation Versus Delegation
  • The Idea Behind a Token Exchange
  • The Token Exchange in Detail
  • Additional Considerations

Strengthening the Initialization of a Flow

  • The Flow Initialization Request
  • Signed Initialization Requests
  • Passing Request Objects by Reference
  • Pushed Authorization Requests

Advanced Scopes and Consent

  • Parametrized Scopes
  • Rich Authorization Requests (RAR)
  • Security Considerations

Wrapping Up OAuth 2.0

  • The Current OAuth 2.0 Landscape Wrapping Up

Training

Developer Security Training

Equip development teams with the skills and education to write secure code and fix issues faster