INTEGRITY Security Services Delivers Macomb County Department of Roads SCMS V2X Certificates for the County and Detroit OEMs via the ISS Security Credential Management Service

SANTA BARBARA, CA — September 28, 2021INTEGRITY Security Services (ISS) today
announces its Security Credential Management Service (SCMS) has been selected by the
Macomb County Department of Roads (MCDR) to deliver SCMS V2X certificates to DSRC and
C-V2X Road Side Units (RSUs) and On-Board Units (OBUs) throughout Macomb County. The
ISS SCMS issues IEEE 1609.2 compliant certificates to these end entity V2X devices and is tied
to the ISS V2X Root CA that was created under the WebTrust for Certification Authorities
auditing framework, the same framework used to assure the secure and safe operations of the
underlying security of Internet e-commerce activity. This Root CA together with the ISS SCMS,
collectively known as the Security Credential Management System (SCMS), will serve the
needs of Macomb County’s V2X Connected Vehicle system.

“We are committed to improving Macomb County’s transportation network by using state-of-the-
art communications technology for traffic safety, smart infrastructure and connected vehicles,”
said MCDR Director Bryan Santo. “We are incorporating the future of mobility and technology to
create a modern, efficient and reliable transportation network that will serve our region well into
the future.”

MCDR is deploying connected vehicle technology at more than 650 intersections for
broadcasting signal phase and timing (SPaT) and other traffic information messages.
Broadcasting SPaT messages allows existing and future applications in vehicles to make
intersections significantly safer for all drivers, by letting drivers and vehicles know when their
light will turn red. Investing in this technology builds on Macomb County’s foundation of modern
traffic signal controllers to create a county-wide intelligent transportation system (ITS). MCDR’s
intersections provide an environment for testing vehicle applications by the organizations
developing the in-vehicle systems and safety applications that move priority vehicles such as
fire trucks through intersections quickly and smoothly.

“Macomb County’s SPaT challenge, located near all of the Big 3 Detroit auto makers, is now
serving as a vital link in the deployment of secure V2X technologies and ISS looks forward to
supporting Macomb County’s rollout of this life-saving technology.” says David Sequino, Co-
Founder and President of INTEGRITY Security Services.
ISS’ SCMS provides a highly scalable system for issuing security credentials to Connected
Vehicle RSUs’ and OBUs’ components, as well as the tools needed by traffic management
authorities to monitor end entity certificate usage. “ISS is pleased to work with Macomb County
and its ecosystem of vehicle OEMs and RSU and OBU suppliers to ensure interoperability both
within the Macomb County ecosystem as well as with other states’ and counties’ CV programs,”
says Murray Egan, Director of Sales for INTEGRITY Security Services.

The ISS SCMS is the de facto standard and global leader serving more Connected Vehicle
projects than any other SCMS in the world. The ISS SCMS is the only SCMS scalable to meet
Global needs for both production and ongoing device top-offs.

The ISS SCMS has now been used to create two national-level credential management
systems. In 2017, ISS delivered the V2X Root CA and Certificate Management System which
actively serve North American connected vehicle projects. This Root CA has attained and
maintained the WebTrust for Certification Authorities Trust Services Seal. In 2019, ISS delivered
Australia’s Queensland C-ITS Security Credential Management System (AU CSCMS) which
includes the current Australian C-ITS Root CA. In addition to these production-grade systems,
ISS provides the SCMS infrastructures used throughout the world in various pilots, trials, and
research projects.

About INTEGRITY Security Services
INTEGRITY Security Services (ISS) is a wholly owned subsidiary of Green Hills Software, established to
provide best practice embedded security products and infrastructure solutions for protecting smart
connected devices from cyber security attacks. End-to-end automotive solutions range from secure ECU
platforms to large-scale public key management systems to supply chain security solutions. As the
leading V2X certificate provider, ISS operates the V2X Root CA and provides its V2X Certificate
Management Service (CMS) to both DSRC and C-V2X OBUs and RSUs used in USDOT CV Pilots and
other State and Local DOT projects across the United States. For more information, please visit

North American Sales Contact:
INTEGRITY Security Services
30 W Sola St
Santa Barbara, CA 93101
Tel: +1-888-951-4477

Green Hills, the Green Hills logo, INTEGRITY Security Services, the INTEGRITY Security Services logo and
INTEGRITY are trademarks or registered trademarks of Green Hills Software and/or INTEGRITY Security Services in
the US and/or internationally. ISS, CMS, the ISS CMS logo, and DLM are trademarks or registered trademarks of
INTEGRITY Security Services in the US and/or internationally. All other trademarks (registered or otherwise) are the
property of their respective owners.
INTEGRITY Security Services Delivers Macomb County Department of Roads SCMS V2X Certificates
for its SPaT challenge via the ISS Security Credential Management Service