3.1.3 Motion sensor keys U.K.
The confidentiality of the three Triple DES keys described below shall be appropriately maintained during generation, transport (if any) and storage.
In order to support tachograph components compliant with ISO 16844, the European Certification Authority and the Member State Certification Authorities shall, in addition, ensure the following:
CSM_036The European Certification authority shall generate KmVU and KmWC, two independent and unique Triple DES keys, and generate Km as: Km = KmVU XOR KmWC. The European Certification Authority shall forward these keys, under appropriately secured procedures, to Member States Certification Authorities at their request.U.K.
CSM_037Member States Certification Authorities shall:U.K.
use Km to encrypt motion sensor data requested by motion sensor manufacturers (data to be encrypted with Km is defined in ISO 16844-3),
forward KmVU to vehicle unit manufacturers, under appropriately secured procedures, for insertion in vehicle units,
ensure that KmWC will be inserted in all workshop cards (
in
elementary file) during card personalisation.