Signals protection
The task of the signals security service is to prevent unauthorised persons from gaining insight into or influencing communication within the total defence telecommunications and IT systems. MUST has the overall responsibility for the signals security service, in cooperation with other parts of the Swedish Armed Forces and the total defence organisation.
Today’s society is increasingly connected, and this also applies to the information systems that handle classified information within the Swedish Armed Forces and total defence authorities. These systems generally have no direct connection to the internet, but they often communicate over the internet via cryptographic systems. This means that the information and the classified networks must be protected from intrusion. The requirements for such cryptographic systems are high, as they must withstand threats from foreign intelligence services, both in terms of eavesdropping and intrusion.
National coordination and international cooperation
Must leads and coordinates the signals security service for all users of signals security, including the Swedish Armed Forces, and issues regulations on cryptographic functions (signals security) for the protection of security-sensitive activities and security-classified information. Must sets requirements, verifies, reviews, and approves signals security systems. These systems are developed by the Swedish crypto industry on behalf of the Swedish Defence Materiel Administration (FMV). The Government has emphasised the importance of maintaining a domestic crypto industry in Sweden and has designated cryptography as a Swedish essential security interest.