upgrade

Definition
Included In
Communication Solutions
Characteristics
Security

Definitions

field equipment software install/upgrade (Information Flow): This flow supports installation and update of software residing in ITS roadway equipment. It supports download of the software installation files, including executable code and associated support files.

Center (Source Physical Object): This general physical object is used to model core capabilities that are common to any center.

Field (Destination Physical Object): This general physical object is used to model core capabilities that are common to any piece of field equipment.

Included In

This Triple is in the following Service Packages:

SU11: Field Equipment Maintenance

This triple is associated with the following Functional Objects:

This Triple is described by the following Functional View Data Flows:

field_software_install_upgrade_files

This Triple has the following triple relationships:

None

Communication Solutions

Solutions are sorted in ascending Gap Severity order. The Gap Severity is the parenthetical number at the end of the solution.

Selected Solution

TUF - Secure Internet (ITS)

Solution Description

This solution is used within Australia, the E.U. and the U.S.. It combines standards associated with TUF with those for I-I: Secure Internet (ITS). The TUF standards include upper-layer standards required to install and update application software. 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.

ITS Application Entity No Standard Needed			Click gap icons for more info.
Mgmt Bundle: SNMPv3 MIB	Facilities TUF	Security TUF Secure Session Alternatives
	TransNet IP Alternatives Internet Transport Alternatives
	Access Internet Subnet Alternatives

Note that some layers might have alternatives, in which case all of the gap icons associated with every alternative may be shown on the diagram, but the solution severity calculations (and resulting ordering of solutions) includes only the issues associated with the default (i.e., best, least severe) alternative.

Characteristics

Characteristic	Value
Time Context	Static
Spatial Context	Regional
Acknowledgement	True
Cardinality	Unicast
Initiator	Source
Authenticable	True
Encrypt	True

Interoperability	Description
Local	In cases where an interface is normally encapsulated by a single stakeholder, interoperability is still desirable, but the motive is vendor independence and the efficiencies and choices that an open standards-based interface provides.

Security

Information Flow Security
	Confidentiality	Integrity	Availability
Rating	Moderate	High	Moderate
Basis	Field equipment software could be sensitive, both from a vulnerability assessment standpoint and because the software itself may be competition-sensitive.	Software updates to Roadway Equipment must be authenticated as having come from a source entitled to provide that software, or roadway equipment may be comprimised. Similarly, such software must be guaranteed to being the intent of the originator; not manipulated midstream or corrupted, or the roadway equipment may be mis-configured or compromised.	The ability to remotely update and configure devices is inherent to their successful operation. If this link is down it either suggests or will prompt field maintenance activity, which has a non-trivial cost and resource impact.

Security Characteristics	Value
Authenticable	True
Encrypt	True

Center --> Field:field equipment software install/upgrade