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The area of protection of classified information in information and communication systems and the area of cryptographic protection of classified information within the scope of NÚKIB is ensured by the Department of Security of Information and Communication Technologies (OBIT).

In the field of protection of classified information in OBIT information and communication systems:

  • fulfills the function of the National Center for the Security of Information Systems
  • certifies information systems
  • approves communication system security projects
  • maintains an overview and record of certified information systems and approved communication systems
  • assesses and approves changes in certified information systems and approved communication systems
  • carries out inspections of compliance with the conditions for the protection of classified information in certified information systems and approved communication systems
  • performs checks on compliance with the conditions of cryptographic protection of classified information
  • accredits information systems handling classified information for NATO, the EU and other international organizations performs continuous control activities in accredited systems according to the requirements of NATO, the EU, and other international organizations

In the area of protection against compromising emanation the OBIT:

  • fulfills the function of the National Center for measuring compromising electromagnetic emanation
  • proposes methods and procedures for evaluating electrical and electronic devices and objects from the point of view of leakage of classified information through compromising electromagnetic emanation
  • performs the certification of shielding enclosures intended for the protection of classified information
  • maintains a list of certified shielding enclosures

In the field of OBIT cryptographic protection of classified information:

  • fulfills the function of the National Security Communication Center
  • fulfills the function of the National Center for the distribution of cryptographic material
  • ensures and carries out the certification of cryptographic means
  • certifies cryptographic workplaces
  • ensures and carries out verification of the professional competence of cryptographic protection workers (examinations of special professional competence)
  • conducts and ensures research in the field of applied cryptography and mathematical cryptology
  • performs and coordinates security analyzes of cryptographic algorithms
  • conducts and ensures applied research and development of cryptographic means