Platform Security Models

1 min read Advanced Security Topics

Platform Security Models

Understanding the security models of iOS and Android is essential for leveraging platform-provided security features effectively.

iOS Security Architecture: Apple's iOS employs a layered security approach:

  • Secure Boot Chain: Ensures only trusted software runs on the device
  • Code Signing: All apps must be digitally signed and verified
  • Sandboxing: Apps run in isolated environments with limited system access
  • Data Protection API: Hardware-based encryption for application data
  • Keychain Services: Secure storage for passwords and cryptographic keys
  • App Transport Security: Enforces secure network connections

Android Security Architecture: Google's Android uses a different but equally comprehensive approach:

  • Linux Kernel Security: Leverages Linux security features like user-based permissions
  • Application Sandbox: Each app runs as a separate user with isolated storage
  • Permission System: Granular control over app access to device resources
  • Verified Boot: Ensures device integrity from hardware to application layer
  • Google Play Protect: Continuous scanning for malicious applications
  • BiometricPrompt API: Standardized biometric authentication