Division 4.2.8 Key Management

This Basic Parameter concerns the safety related data transmitted via radio that is protected by mechanisms that need cryptographic keys. The infrastructure managers and railway undertakings shall provide a management system that controls and manages the keys. A key management interface is required:

• between the key management systems of different infrastructure managers,

• between the key management systems of railway undertakings and the infrastructure managers,

• between the key management system and the on-board and track-side ETCS equipment.

The requirements to the key management between key management systems of interoperable regions are specified in Annex A, index 11 and index 56.