1476  Device Provisioning Security Analysis

Security Analysis, Trust Boundaries, and Attack Surface Assessment

1476.1 Learning Objectives

After completing this section, you will be able to:

  1. Analyze security properties of each provisioning step including attack surfaces
  2. Understand trust boundaries and zones in device provisioning architectures
  3. Identify trust anchors required for different provisioning methods
  4. Map provisioning methods to compliance standards and security frameworks

1476.2 Overview

This section provides deep security analysis of IoT device provisioning, examining trust boundaries, attack surfaces, and security controls at each step of the onboarding process.

NoteSecurity Analysis Focus

Understanding the security implications of provisioning is critical because this is when devices establish their identity and receive credentials. Compromising provisioning can lead to unauthorized device access, credential theft, and man-in-the-middle attacks.

1476.3 Security Analysis Panel

1476.4 Trust Boundary Diagram

1476.5 Understanding Trust Boundaries

WarningCritical Security Points
  1. Supply Chain Security - Secure manufacturing and credential injection are foundational
  2. Certificate Lifecycle - Plan for rotation, renewal, and revocation from day one
  3. Channel Security - Always use encrypted channels for credential exchange
  4. Trust Anchors - Carefully manage root CA certificates and their distribution
  5. Failure Modes - Design for graceful handling of provisioning failures

1476.5.1 Trust Zone Analysis

The trust boundary diagram shows four distinct zones:

  1. Device Trust Zone - Contains the secure element, device firmware, and bootstrap credentials. This zone is protected by hardware security features.

  2. Network (Untrusted) - The network layer including DHCP, DNS, and internet connectivity. This zone should be treated as hostile.

  3. Cloud Trust Zone - Cloud platform components including provisioning services, IoT core, and device registry. Protected by platform security controls.

  4. Manufacturer Trust Zone - Root CA, device certificates, and serial database. Critical for establishing device identity.

1476.6 Summary

Understanding security analysis in device provisioning is essential for:

  • Identifying attack surfaces at each provisioning step
  • Mapping trust anchors and dependencies
  • Ensuring compliance with security standards
  • Planning for credential lifecycle management

1476.7 What’s Next

Continue exploring device provisioning: