EU: SIRI - Secure Internet (ITS)

Description:

This solution is used within the E.U.. It combines standards associated with EU: SIRI with those for I-I: Secure Internet (ITS). The EU: SIRI standards include upper-layer standards required to implement C2C information flows for real-time public transport information. The I-I: Secure Internet (ITS) standards include lower-layer standards that support secure communications between ITS equipment using X.509 or IEEE 1609.2 security certificates.

Relevant Regions:

• European Union

Comm Profile: I-I: Secure Internet (ITS)

Comm Class: WAN - Wide Area Network

Level	Standard
Access	Internet Subnet Alternatives
Mgmt	Bundle: SNMPv3 MIB
Security	Secure Session Alternatives
TransNet	Internet Transport Alternatives
TransNet	IP Alternatives

Data Profile: EU: SIRI

Level	Standard
Facilities	CEN 15531-2 PublicTrans - SIRI Communications
ITS Application Entity	CEN 12896-4: Transmodel Operations monitoring and control
ITS Application Entity	CEN 12896-6: Transmodel Passenger Information
ITS Application Entity	CEN 15213-4 After-theft systems - long range comms
ITS Application Entity	CEN 15531-3 PublicTrans - SIRI Functional interfaces
ITS Application Entity	CEN 15531-5 PublicTrans - SIRI Situation Xchange

Solution Issues Severity: 3

Solution Issues:

Default	Severity	Name	Type	Description
True	Medium	Secure data access not provided	Security Gap	The solution does not define rules on how the application entity authenticates requests to accept or provide data.
False	Medium	Option not standardized	Standardization Gap	The option set includes at least one option that is not (yet) defined in a standard.
False	Medium	Uncertainty about trust revocation mechanism	Security Gap	The mechanisms used to prevent bad actors from sending authorized messages is unproven.

Solution to Triples

Source	Flow	Destination
Alternate Mode Transportation Center	alternate mode information	Traffic Management Center
Alternate Mode Transportation Center	alternate mode information	Transportation Information Center
Maint and Constr Management Center	traffic control priority request	Traffic Management Center
Other Transit Management Centers	transit service coordination	Transit Management Center
Other Transportation Information Centers	alternate mode information	Transportation Information Center
Shared Use Transportation Center	shared use status	Transit Management Center
Shared Use Transportation Center	shared use status	Transportation Information Center
Traffic Management Center	traffic control priority status	Maint and Constr Management Center
Traffic Management Center	traffic control priority status	Transit Management Center
Transit Management Center	transit service coordination	Other Transit Management Centers
Transit Management Center	transit schedule adherence information	Parking Management Center
Transit Management Center	traffic control priority request	Traffic Management Center
Transit Management Center	transit system data	Traffic Management Center
Transit Management Center	transit schedule adherence information	Transportation Information Center
Transportation Information Center	alternate mode information	Other Transportation Information Centers
Transportation Information Center	shared use status	Transit Management Center