Security

Certificates, TLS, and Trust Stores for Digital Signage

· By Media La Vista

TLS certificates and trust stores ensure that communication between your CMS, data sources, and media players is encrypted, authenticated, and tamper-proof. SpinetiX enforces TLS 1.2+ by default since firmware 4.3.0 — every content sync, every management session, and every data widget request travels over an encrypted channel. No plaintext. No exceptions.

When Certificate Management Matters

  • Enterprise PKI integration — when your organization issues its own certificates via internal CA
  • 802.1X network authentication — client certificates for device-level network access control
  • Internal data sources — when widgets connect to internal HTTPS endpoints using self-signed or enterprise-signed certificates
  • Compliance audits — ISO 27001 and SOC2 require documented encryption controls

How TLS Works on SpinetiX

Default TLS Configuration

Out of the box, SpinetiX players enforce TLS 1.2+ for all HTTPS connections. Strong cipher suites only (AES-256-GCM, ChaCha20-Poly1305). Weak protocols (SSL, TLS 1.0, 1.1) are disabled. No configuration needed — the secure default works for most deployments.

Custom CA Trust Store

For environments with internal CAs, upload your CA certificate to the player's trust store. The player will then trust HTTPS connections signed by your CA — critical for accessing internal APIs, dashboards, and data sources over HTTPS. Trust store management is available via the player's management interface or remotely via CMS.

Client Certificates

For 802.1X network authentication, SpinetiX players support client certificates. Each player presents its certificate to the network switch during authentication. This proves device identity — only players with valid certificates receive network access.

Firmware Signing (Separate from TLS)

Firmware images are signed with SpinetiX's private key and verified at boot using TPM 2.0 + UEFI Secure Boot. This is a separate mechanism from TLS — even if someone intercepted a firmware file, they couldn't modify it without SpinetiX's private key.

Key Parameters

FeatureSpinetiX SupportNotes
TLS versions1.2, 1.3SSL, TLS 1.0, 1.1 disabled
Cipher suitesAES-256-GCM, ChaCha20-Poly1305Strong ciphers only
Custom CA certsYes — upload to trust storePEM format
Client certificatesYes — for 802.1XPKCS#12 or PEM
Certificate pinningSupportedPin CMS server certificate
Firmware signingRSA + TPM 2.0 + UEFIIndependent of TLS
OCSP/CRLCRL supportedFor certificate revocation checks

Common Mistakes with Certificates

  1. Using self-signed certificates in production. Self-signed certs work but don't chain to a trusted CA — making MITM detection impossible. Use your enterprise CA or a public CA for production deployments.
  2. Forgetting certificate expiration. Certificates expire. When they do, TLS connections fail. Players can't sync. Content goes stale. Track expiration dates and automate renewal where possible.
  3. Not updating the trust store. If you rotate your enterprise CA, all players need the new CA cert in their trust store. Plan trust store updates as part of your CA rotation schedule.
  4. Assuming TLS alone is enough. TLS encrypts the transport layer. But if someone has CMS credentials, they can publish malicious content over a perfectly encrypted channel. TLS + authentication + RBAC + audit logging = complete security. Network segmentation details →

Certificates, TLS, and Trust Stores for Digital Signage FAQ

Does SpinetiX support HTTPS/TLS?

Yes. TLS 1.2+ is supported and enforced by default since firmware 4.3.0. All CMS-to-player communication uses encrypted channels. Self-signed certificates, CA-signed certificates, and custom CA trust stores are all supported.

Can I use my own CA certificates?

Yes. SpinetiX players accept custom CA certificates in the trust store. Upload your enterprise CA cert via the player's management interface or push it remotely via CMS. This enables HTTPS communication with internal services using your own PKI.

What TLS versions are supported?

TLS 1.2 and TLS 1.3. Older protocols (TLS 1.0, 1.1, SSL) are disabled by default. Cipher suite selection follows current best practices — only strong ciphers are enabled.

How do I rotate certificates on SpinetiX players?

Push new certificates via CMS (Arya or Elementi). Players reload the trust store automatically. For 802.1X client certificates, renewal can be automated through your PKI infrastructure.

Need Help With Your Project?

Media La Vista provides Tier 1–3 local support across the Middle East. 10-minute response for Partner Club members.

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