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Deployment

SSL/TLS for Mobile App Backends

Configure certificates for mobile app backends, including pinning, API security, and certificate rotation.

CertOne1 min read

Mobile app backends have specific TLS security requirements. This guide covers certificate configuration for these environments.

1. Mobile app TLS requirements​

1. Security requirements​

  • Protect API communication
  • Prevent man-in-the-middle attacks
  • Certificate pinning

2. Performance requirements​

  • Low latency
  • Low power consumption
  • Fast connections

2. Certificate configuration​

1. Certificate selection​

  • Use certificates from a trusted CA
  • Serve the complete certificate chain
  • Ensure mobile clients can validate it

2. Certificate pinning​

Where appropriate, implement certificate pinning in the app to further restrict the certificates or keys it trusts against man-in-the-middle attacks.

3. Security configuration​

1. Protocol configuration​

  • Use TLS 1.2 or later
  • Disable insecure protocols

2. Certificate validation​

  • Validate certificates strictly
  • Check the certificate chain
  • Verify the hostname match

4. Best practices​

1. Certificate management​

  • Use automatic renewal
  • Monitor certificate status
  • Prepare for certificate rotation

2. Mobile client configuration​

  • Implement pinning where appropriate
  • Handle certificate updates
  • Handle validation errors

Conclusion​

Account for mobile client security requirements when configuring backend TLS. Correct validation, carefully managed pinning, and renewal planning help protect mobile communication.