SDoT
Software Data Diode.

One-way information transfer with high confidentiality!

Modern military command and control information systems and comparable systems owned by civil authorities and the operators of critical infrastructures use computer networks to collect, process and exchange data. The SDoT Software Data Diode solves various problems of one-way information transmission with regard to confidentiality and the integrity of the CIA principle in the context of digitization and Industry 4.0. In contrast to firewalls or bidirectional gateways, data diodes do not filter data according to sets of rules that have to be continuously maintained. A high level of security is achieved by the segmentation of systems according to protection requirements and the one-way data flow. The SDoT Software Data Diode is developed and produced in Germany by certified cybersecurity experts according to security-by-design principles. The security appliance meets the strictest requirements of the German Federal Office for Information Security (BSI) and is also approved up to NATO SECRET level.

Transmission confirmation with HTTP response status codes

Simple communication between server and client using status queries via HTTP reponse status codes. HTTP status codes are three-digit numbers that transmit information about the respective query.

Unidirectional data transfer

Fast and secure high-performance unidirectional data transfer via numerous protocols with a compact form factor between two differently classified networks.

Unique and evaluated security architecture

As a next-generation data diode, the SDoT Software Data Diode ensures logical separation of networks without a return channel thanks to its unique and evaluated security architecture.

Application scenarios.

  • Defense sector
  • Intelligence services
  • Authorities
  • Factories
  • Oil platforms
  • Power plants
  • Water treatment
  • Database replication and updates
  • Transfer of sensor data (e.g. radar, ELINT)
  • Lawful interception (LI)
  • IT service management
  • Video and audio streaming
  • Remote screen view
  • Website mirroring
  • Patches and malware signatures
  • Logging and backup
  • Secure printing
  • Server replication (e.g. OPC, Modbus, Historian)
  • Transfer of OT data
  • Managed security services (e.g. SIEM to SOC)

Key Benefits.

The strictest security requirements

We are proven to meet the highest security requirements and have approvals up to DEU SECRET, EU SECRET and NATO SECRET

Security by design

Our products are designed and hardened in such a way that security functions are never compromised.

An established partner

We have been a reliable partner to the German Armed Forces and defense industry for 50 years.

What is the function of the SDoT Software Data Diode?

Since the 1980s, unidirectional data flow in diodes has been ensured at the hardware level by using a one-sided fiber optic connection. Although this ensures a physical separation of networks without a return channel, it does not meet today’s requirements in terms of bandwidth, reliability, space, project implementation speed or bidirectional protocols. In contrast, the SDoT software data diode, a next-generation data diode, ensures logical separation of networks without a return channel thanks to its unique and evaluated security architecture. Side-channel attacks are prevented. It enables fast and high-performance unidirectional data transfer via numerous protocols in a compact form factor between two differently classified networks. It also offers additional functions such as HTTP response status codes.

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