Gartner Research

Designing Authorization Infrastructure to Power Applications in a Federated and Hybrid Cloud World

Published: 15 May 2013

ID: G00251379

Analyst(s): Ian Glazer

Summary

How and where applications decided what actions users were allowed to perform was once relatively straightforward — but no longer. Advancements in externalized authorization technologies and the increase in federated and cloud applications present new challenges and opportunities for identity teams.

Table Of Contents

Summary of Findings

Comparison

  • Authorization Architecture Criteria
  • Comparing Authorization Architectures

Analysis

  • Decision as a Service
  • The Granularity of Authorization Spectrum
  • Where Should Decisions Be Made?
  • Federation Authorization Patterns
    • Identity Provider as Authorization Service
    • Identity Provider as Authorization Service Plus Attributes
  • Externalized Authorization Patterns
    • Externalized Authorization Pros
    • Externalized Authorization Cons
    • Co-located Authorization: PDP and PEP There
    • Centralized Authorization: PDP There, PEP Here
    • Identity Oracle: PDP Here, PEP There
    • Federated Authorization: PIP There
    • Distributed Policy: PAP Here
  • Federation Plus Externalized Authorization Patterns
    • Identity Provider Plus PEP
    • Service Provider Plus PEP
  • Deciding About Decision as a Service
  • Ease Into Authorization
  • Perform an Application Assessment
  • Evaluate Granularity Requirements
  • Determine Whether an Externalized Authorization Approach Is Appropriate
  • Get Ready for an Attribute-Based World
  • Develop a Flexible Response
  • Authorization for Federated Applications
  • Authorization for Cloud-Based Applications

Recommended Reading

Notes

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