Ohio DOT Cooperative ITS Credentials Management System

Status

Planned

Description

The 'Cooperative ITS Credentials Management System' (CCMS) is a high–level aggregate representation of the interconnected systems that enable trusted communications between mobile devices and other mobile devices, roadside devices, and centers and protect data they handle from unauthorized access. Representing the different interconnected systems that make up a Public Key Infrastructure (PKI), this physical object represents an end user view of the credentials management system with focus on the exchanges between the CCMS and user devices that support the secure distribution, use, and revocation of trust credentials.

Stakeholders

StakeholderRoleRole Status
ODOTOwnsPlanned

Physical Objects

Cooperative ITS Credentials Management System
ITS Object

Functional Objects

Functional ObjectDescriptionUser Defined
CCMS Authorization'CCMS Authorization' components provide authorization credentials (e.g., pseudonym certificates) to end entities. The end entity applies for and obtains authorization credentials, enabling the end entity to enter the "Operational" state. This function requires an interactive dialog, including at minimum a Certificate Request from the end entity desiring certificates. This request will be checked for validity, with the embedded enrollment certificate checked against an internal blacklist. If all checks are passed, this function will distribute a bundle of linked pseudonym certificates suitable for use by the requesting end entity, with the characteristics and usage rules of those certificates dependent on the operational policies of the CCMS. It also provides the secure provisioning of a given object's Decryption Key in response to an authorized request from that object. The retrieved Decryption Key will be used by the receiving object to decrypt the "next valid" batch within the set of previously retrieved Security Credential batches.False
CCMS Enrollment'CCMS Enrollment' components provide enrollment credentials to end entities. The end entity applies for and obtains enrollment credentials that can be used to communicate with other CCMS components, entering the "Unauthorized" state. CCMS Enrollment components also participate in de–registration processes through interaction with CCMS Revocation components.False
CCMS Misbehavior Reporting and Action'CCMS Misbehavior Reporting and Action' components process misbehavior reports from end entities. Misbehavior reports are analyzed and investigated if warranted. Investigated misbehavior reports are correlated with end entities and systemic issues are identified. If revocation is warranted, this component provides information to Authorization or Revocation components to initiate revocation and/or blacklisting, as appropriate.False
CCMS Provisioning'CCMS Provisioning' components provide the end entity with material that allows it to enter the 'Unenrolled' state. This consists of root certificates and the crypto material that allows it to communicate securely with the Enrollment components. This function ensures the requesting entity meets requirements for provisioning and provides the certificates and relevant policy information to entities that meet the requirements.False
CCMS Revocation'CCMS Revocation' components generate the internal blacklist and Certificate Revocation List (CRL) and distribute them to other CCMS components and end entities. Once placed on the CRL, an end entity is in the Unauthorized state. Once placed on the blacklist, an end entity is in the Unenrolled state.False
ITS Communications Support'ITS Communications Support' provides means to send and receive messages to and from other ITS Objects. It provides mechanisms for scheduling and prioritizing communications traffic. It may also provide relay functions.False
ITS Management Support'ITS Management Support' provides management of the ITS Object. This includes management of regulatory information and policies, management of application processes, management of communication system configuration and update management, communications interfaces, protocol–specific techniques to ensure interoperability such as service advertisements, communications congestion management and interference management, local device states and communications information, billing management, fault management, service level and performance monitoring.False
ITS Security Support'ITS Security Support' provides communications and system security functions to the ITS Object, including privacy protection functions. It may include firewall, intrusion management, authentication, authorization, profile management, identity management, cryptographic key management. It may include a hardware security module and security management information base.False

Physical Standards

SDODocument #TitleUser Defined
ISOISO 21217Intelligent transport systems — Communications access for land
mobiles (CALM) — Architecture
False
NISTNIST FIPS PUB 140–2Security Requirements for Cryptographic ModulesFalse

Interfaces To

(View Context Diagram)

Case Western Reserve Transit Vehicles
City of Cleveland Emergency Vehicles
City of Cleveland Maintenance Dispatch
City of Cleveland Signal Control System
Commercial Vehicles
Connected/Automated Vehicles
County and City Connected Vehicle Roadside Equipment
County and City CV Authorizing Center
County Emergency Vehicles
County Maintenance Garages
County Maintenance Vehicles
Cuyahoga County Maintenance Garages
Cuyahoga County Maintenance Vehicles
GCRTA Police Vehicles
Geauga County Transit Vehicles
Hopkins International Airport and Burke Lakefront Airport
Laketran Paratransit Vehicles
Laketran Vehicles
LCT Transit Vehicles
Medina County Transit Vehicles
Municipal Emergency Vehicles
Municipal Maintenance Garages
Municipal Maintenance Vehicles
Municipal Signal Control Systems
Ohio DOT ATMS
Ohio DOT Certification System
Ohio DOT Connected Vehicle Roadside Equipment
Ohio DOT CV Authorizing Center
Ohio DOT District Offices
Ohio DOT Maintenance and Construction Vehicles
Ohio DOT Safety Patrol Vehicles
Ohio DOT Traffic Signal Control Systems
Ohio State Highway Patrol Vehicles
Ohio Turnpike Central Dispatch
Ohio Turnpike Connected Vehicle Roadside Equipment
Ohio Turnpike CV Authorizing Center
Ohio Turnpike Maintenance and Construction Vehicles
Ohio Turnpike Maintenance Dispatch
Ohio Turnpike Public Service Vehicles
Private Companies Privacy Protection Gateway
Regional Airport/Port Authority Connected Vehicle Roadside Equipment
Regional Airport/Port Authority CV Authorizing Center
RTA Fixed Route Vehicles
RTA Paratransit Vehicles
Traveler Information Devices