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

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:

This triple is associated with the following Functional Objects:

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

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, Canada, 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
Mind the gap

No Standard Needed
Click gap icons for more info.
Mgmt
Facilities
Mind the gap

TUF
Security
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TransNet
Access

Internet Subnet Alternatives
TransNet TransNet

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Facility Facility

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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