# Commission Decision of 30 May 2002 concerning the technical specification for interoperability relating to the control-command and signalling subsystem of the trans-European high-speed rail system referred to in Article 6(1) of Council Directive 96/48/EC (notified under document number C(2002) 1947) (Text with EEA relevance) (2002/731/EC), Division 4.1.2.4: Key management

Extent: E+W+S+N.I.

Safety related data transmitted via radio are protected by mechanisms that need cryptographic keys. The infrastructure manager 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 system and the on-board and track-side ETCS.
The security of key management affects the safety of the control-command subsystem. Therefore a security policy is required for the key management system.
The requirements are specified in Annex A, index 15.

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Source: https://www.legislation.gov.uk/eudn/2002/731/annex/division/4/division/4.1/division/4.1.2/division/4.1.2.4 (the official version)
Page: https://openlegislation.uk/eu-decision-2002-731/annex/division-4/division-4.1/division-4.1.2/division-4.1.2.4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.