# C-V2X Certificates Cellular Vehicle-to-Everything (C-V2X) communication requires certificates to authenticate messages exchanged between vehicles, roadside units, and control centers. These certificates form the basis of trust in Cooperative Intelligent Transport Systems (C-ITS). emCA supports issuing certificates for C-ITS Enrollment Authorities (EA) and Authorization Authorities (AA), enabling secure message signing and validation in line with regional standards. This supports road safety applications, traffic efficiency services, and emerging intelligent transport infrastructures. How to configure, create, and issue C-V2X Certificates in emCA will be published shortly. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://emca.emudhra.com/advanced-capabilities/c-v2x-certificates.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.