Transport Layer Security (TLS) is a cryptographic protocol that secures
data sent over networks. It encrypts traffic between client and server so that passwords,
payment details and operational data cannot be read or modified by third parties.
TLS underpins HTTPS and many other secure application protocols.
Digital certificates are used to prove the identity of the server (and, if needed, the client),
helping to prevent man-in-the-middle attacks and ensuring communication takes place with
the intended system.
How TLS Works
TLS starts with a handshake. During this phase, the client and server:
- agree on encryption algorithms and protocol version,
- verify the server certificate (and optionally the client),
- exchange key material and derive shared session keys.
Once the handshake completes, the session keys are used for symmetric encryption of all
application data. Message authentication codes (or AEAD ciphers) protect integrity so that
any tampering is detected.
Key Benefits
| Feature | Description |
|---|---|
| Confidentiality | Encrypts traffic to prevent unauthorized access to sensitive data. |
| Data integrity | Detects changes to messages in transit and blocks tampered traffic. |
| Authentication | Uses certificates to verify the identity of servers and, if required, clients. |
Applications in Logistics and Cloud Systems
TLS is widely used to secure web interfaces, APIs and machine-to-machine links in
cloud-based TOS, ERP platforms and
container terminal control systems. Encrypted channels protect:
- equipment control commands and telemetry,
- berth and yard planning data,
- integration traffic between TOS, ERP, CRM and external partners.
By securing these links, operators reduce cyber-risk and keep operational data confidential
across ports, depots and cloud environments.
Future Enhancements
Newer TLS versions introduce stronger cipher suites, better key management and features
tailored to high-latency and IoT scenarios. As systems modernize, disabling outdated
protocols and enforcing current TLS versions is a key step in hardening logistics and
cloud infrastructure.
