R&S®TF5900M Trusted filter IP

Special-purpose firewall for boundary protection

R&S®TF5900M trusted filter IP, front view

Key facts

Boundary protection between different classified information domains
Central remote management via trusted object manager
Additional security features: secure boot, storage and software update

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Brief description

The R&S®TF5900M trusted filter IP secures network boundaries with different classified information domains. Typically, one network is highly classified and at least one is less classified. The trusted filter is installed to check the IP traffic between these two networks and to ensure that no sensitive data can leave the more highly classified network.. Boundary protection is available for voice and management data (e.g. remote control commands).

Features & benefits

Boundary protection for VoIP traffic

Secure voice communications in multiple security information networks

The trusted filter ensures that only intended voice communications can be made between different classified security networks. In combination with the R&S®GB5900SM voice terminal, a synchronization process between the voice terminal and the trusted filter ensures that no unintended communications from a voice terminal in the SECRET domain can be made to a telephone in an information domain with lower classification.

Boundary protection for data traffic

Secure data communications in multiple security information networks

Any management data configuration or remote control information for devices sent from a highly classified information domain to one with lower classification must pass the trusted filter's deep packet inspection. Only accepted data can pass the boundary, all other data is rejected.

Trusted object manager

Central management instance for security

The trusted object manager provides central key and certificate management for trusted filters and voice terminals to ensure signatures created with a valid key at the voice terminal can be validated by the trusted filter at the boundary between information domains.

Device security

Additional built-in security features

- Secure boot, storage and software update
- Hardware tamper protection and emergency clear
- Device classification with smart card (CIK)
- Fulfills Common Criteria EAL4+

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