Shared Mobility for Transport and Its Environmental Impact VeSIPreS: A Vehicular Soft Integrity Preservation Scheme for Shared Mobility

Table 2

Notations used in VeSIPreS.

Notation	Description	Provider
S0, S1, S2	Security stages of the ECUs (see Section 6.3).
	Nonce to quote gateway PCR.	Client app
	Nonce to quote ECUn PCR.	Gateway
	Gateway signing key. Used to sign messages from gateway to user app. is the public key, which is used to validate the signature, is the private part of the key which is only accessible to the TPM in the gateway.	Gateway
	ECUn signing key. Used to sign messages from ECUn to gateway. is the public key, which is used to validate the signature, is the private part of the key which is only accessible to the TPM or HSM in ECUn.	ECUn
Report	Measurement report containing the status of the system and the measurements of the boot stages (if measured boot is performed, only and gateway).	Gateway, ECUn
Platform configuration register (PCR)	Platform configuration registers. Special registers in TPM which represent the running software.	Gateway, ECUn