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MicrOBU/microbu-esp32c5/pki/uml-l0-rca/rca/AFD566A8034ED5DB_0_Urban-Mobility-Lab-Root-CA_L0_2026-09-11.txt
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EU CCMS CPOC L0 ECTL — RCA descriptive information
===================================================
Full Company Name / RCA Operator:
Hochschule für Angewandte Wissenschaften Hamburg (HAW Hamburg)
Urban Mobility Lab
RCA Name:
Urban Mobility Lab L0 Root CA
RCA Distribution Centre URL:
https://cits-dc.uml-hamburg.de
Contact:
uml-haw@proton.me
CertificateID:
0_Urban-Mobility-Lab-Root-CA_L0
Certificate HashedID8:
AFD566A8034ED5DB
CertificateID / acronym explanation:
- 0: CPA-ID reserved for the L0 environment.
- Urban-Mobility-Lab-Root-CA: Root CA operated for the Urban Mobility Lab at HAW Hamburg.
- L0: EU CCMS L0 research/test environment.
Purpose of testing:
The RCA is used for research, field testing and proof-of-concept activities of the
Urban Mobility Lab in the context of the micrOBU project. micrOBU investigates the
integration of vulnerable road users into C-ITS through development of a lightweight,
compact and low-cost VRU ITS-S using an MCU + mobile-phone architecture.
Contextual constraints / deviations:
- This is a new RCA and the first L0 submission for this RCA. No existing L0 entry is
intended to be replaced or revoked.
- The implementation, including the C-ITS protocol stack, signing functionality and
VRU Awareness Basic Service, is under active development. Full implementation
conformity is not claimed.
- The declared RCA Distribution Centre is the intended permanent DC URL. At the time
of this submission, the cits-dc.uml-hamburg.de subdomain and the required /getctl
and /getcrl endpoints are still being commissioned and are not yet operational.
- The RCA intentionally includes ITS-AID 638 (VRU Awareness basic service) with
bitmap SSP range 01/FF for L0 VAM/VBS research. ITS-AID 638 is a standardized ETSI
ITS-AID but is not contained in the current CPOC Protocol Release 3.3 Table 4 list;
its inclusion is therefore an intentional L0 profile deviation.
- The RCA private key is generated and maintained locally as an encrypted PKCS#8
NIST P-256 key for this L0 research environment. This software-based key storage is
not claimed to satisfy production/L2 cryptographic-module requirements.
Re-key / revocation / relationship to existing certificates:
New RCA / first submission. No existing L0 RCA certificate is affected.
Submission date:
2026-09-11