Gartner Research

Decision Point for Architecting Single-Factor, Two-Factor and Multifactor Authentication

Published: 10 December 2015

ID: G00292740

Analyst(s): Trent Henry


Identity teams must decide how to architect local, remote and mobile authentication using single-factor, two-factor and multifactor technologies in order to meet identity assurance requirements.

Table Of Contents

Decision Point Question

Decision Overview

Decision Tool

  • Choices
    • Certificate
    • Hardware OTP
    • OOB (Push)
    • OOB (Push) With Additional Factor
    • OOB (Push) With Secret Knowledge and Biometric
    • OOB (SMS)
    • OOB (Telephony)
    • Password
    • Smart Card
    • Smartphone OTP
    • Virtual Smart Card

Requirements and Constraints

  • Requirements
    • Identity Proofing
    • Assessing Depth of Relationship
    • Client Platform
    • Application Interoperability
    • Adaptive Access
  • Constraints
    • Relationship Between Identity Assurance and Cost
    • User Experience
    • Flawed Authentication Methods
    • User Constituencies


  • Technical Integration
    • AD Workstation Integration
    • Identity Assurance
    • PACS Integration
    • Frequency of Authentication
    • Network Quality
    • Smartphone Availability
  • Types of Authenticators
    • Certificate
    • Hardware OTP
    • OOB (Push)
    • OOB (SMS)
    • OOB (Telephony)
    • Password
    • Smart Card
    • Smartphone OTP
    • Virtual Smart Card
    • Excluded Authentication Methods

Future Developments

  • NFC Devices
  • FIDO Alliance
  • Windows 10

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