What is the Public Key in each Trust Anchor Cell to be used for – informative Usage of the Public Key in TrustAnchorCellIdentifier the Trust Anchor Cell remotePartyRole keyUsage cellUsage Used only in Certification Path root keyCertSign management Validation to check that Certification Authority Certificates and Certificates related to change of credentials were validly root issued Used only to verify recovery digitalSignature management recovery’s signature on Update Security Credentials Commands addressed to the Device Used to verify the supplier digitalSignature management supplier’s signature on Critical Commands the supplier has addressed to the Device Used in applying MACs to Alerts supplier keyAgreement management and Responses addressed to the where they are not supplier, Critical Used in unencrypting encrypted data in Commands from the and in encrypting data supplier in Alerts and Responses addressed to the supplier Used to check the MAC supplier keyAgreement prePaymentTopUp supplier on prepayment top up Commands. The can decide supplier whether this is the same key as the Key Agreement key used for other purposes Used to check the signature of the networkOperator digitalSignature management on Critical networkOperator Commands the has sent to networkOperator the Device. This only equates to Update Security Credentials Commands Used in applying MACs to Alerts networkOperator keyAgreement management and Responses addressed to the where they networkOperator, are not Critical Used in encrypting data in Responses addressed to the networkOperator Used by the Communications Hub accessControlBroker digitalSignature management (CHF) to verify the accessControlBroker’s signature on Commands addressed to the Communications Hub Used in checking the accessControlBroker keyAgreement management MAC on accessControlBroker Commands received and to
What is the Public Key in each Trust Anchor Cell to be used for – informative TrustAnchorCellIdentifier Usage of the Public Key in the Trust Anchor Cell remotePartyRole keyUsage cellUsage root keyCertSign management Used only in Certification Path Validation to check that Certification Authority Certificates and Certificates related to change of root credentials were validly issued recovery digitalSignature management Used only to verify recovery’s signature on Update Security Credentials Commands addressed to the Device supplier digitalSignature management Used to verify the supplier’s signature on Critical Commands the supplier has addressed to the Device supplier keyAgreement management Used in applying MACs to Alerts and Responses addressed to the supplier, where they are not Critical Used in unencrypting encrypted data in Commands from the supplier and in encrypting data in Alerts and Responses addressed to the supplier supplier keyAgreement prePaymentTopUp Used to check the supplier MAC on prepayment top up Commands. The supplier can decide whether this is the same key as the Key Agreement key used for other purposes networkOperator digitalSignature management Used to check the signature of the networkOperator on Critical Commands the networkOperator has sent to the Device. This only equates to Update Security Credentials Commands networkOperator keyAgreement management Used in applying MACs to Alerts and Responses addressed to the networkOperator, where they are not Critical Used in encrypting data in Responses addressed to the networkOperator accessControlBroker digitalSignature management Used by the Communications Hub (CHF) to verify the accessControlBroker’s signature on Commands addressed to the Communications Hub accessControlBroker keyAgreement management Used in checking the accessControlBroker MAC on Commands received and to