Security Issues for the GSOC Control Center in the Columbus Era

Abstract

The ground segment of the European part of the international space station Freedom, the Columbus Control Center, will be hosted at the German Space Operation Center (GSOC). GSOC is also responsible for the design and development of the Ground Segment Integrated Ground Subnetwork. The ColumbusCC is set up on a common infrastructure used in the multimission facility of GSOC. Instead of defining a “Security Subsystem” the Columbus CC has been designed with security concepts integrated into all levels of each subsystem. This paper covers the following security items of the COLCC: - common security infrastructure (physical infrastructure, internal network infra, server and workstations, common security means (PKI, LDAP, Virus scanning, Intrusion detection,..)), - subsystem level security (IMS and others), - interface security (different IGS nodes), and - security management. It shows how this implementation deals with integrity, confidentiality, nonrepudiation, availability and authentication. The discussion of security requirements and their implementation particularly with regard to - Convenience against security - Costs against benefit will be shown on the selected solutions. Beside that implications to other satellite missions handled in GSOC will be outlined.