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Data security: TRANSEC-compliant, IP-based VSAT network secures critical ...

22.05.12

Protecting data is critical to government agencies and, most important, for the military. Incorporating Transmission Security (TRANSEC) for Time Division Multiple Access (TDMA)-based Communications on the Move (COTM) satellite systems is a necessity because, in combat situations, even a small spike in traffic can be a critical piece of intelligence for an adversary or foreign government.

The need to mask any government communications activity becomes readily apparent.  Fortunately, TRANSEC for TDMA very small aperture terminal (VSAT) networks were developed to address these issues.

There exists some confusion about the differences between Communications Security (COMSEC) and TRANSEC for secure data. They are quite different in their data security characteristics.

TRANSEC has additional security components, including the ability to obfuscate any traffic volume or remote terminal activity information that could allow an adversary to infer useful information based on activity levels. Although the encryption of actual data traffic is viable with COMSEC, TRANSEC’s ability to obfuscate any data flow and traffic engineering information provides advanced data security, masking data that could be exploited by an adversary. These include voice, video and data traffic, as an adversary can potentially tell the difference between voice and data by the size of the packet or by the type of service field in a High Assurance IP Encryptor (HAIPE) encrypted tunnel.

Source: Government Security News