C-ITS ITS-S Reference Implementation

This is a reference implementation of the ITS-S (a client side) as defined in ETSI C-ITS standards. Its main purpose is to enable implementators of the ITS-S software to study and validate their implementations from a security perspective. The server side (Enrollment Authority, Authorization Authority and Certification Authority) is provided by TeskaLabs' SeaCat CA. It also contains a simple ITS-G5 network simulator that utilizes UDP IPv4 multicast.

Cooperative Intelligent Transport Systems (C-ITS) allow road users and traffic managers to share information and use it to coordinate their actions. It is a set of standards that describes data exchange between high-speed vehicles and between the vehicles and the roadside infrastructure, so called V2X communication.

Quick start

1. Ensure that you have Python 3.5, 3.6 or 3.7 installed.
   Please referrer to a documentation of your OS or to a Python official documentation how to install Python. We assume, that your python interpretter is available as python3 binary.
   Supported OS are: Linux, Windows, Mac OSX.

2. Ensure that you have pip, the python installer.

3. Install dependencies

    pip3 install -U asn1tools
    pip3 install -U cryptography
    pip3 install -U requests
   

4. Clone the repository

    git clone https://github.com/TeskaLabs/c-its-itss.git
   

Usage

     $ ./itss.py --help
     usage: itss.py [-h] [-e EA_URL] [-a AA_URL] [--g5-sim G5_SIM] DIR
     
     C-ITS ITS-S reference implementation focused on a security.
     C-ITS standards: ETSI TS 102 941 v1.1.1, ETSI TS 103 097 v1.2.1
     It also contains a simple ITS-G5 network simulator that utilizes UDP IPv4 multicast.
     
     (C) 2018 TeskaLabs

     positional arguments:
       DIR                   A directory with persistent storage of a keying
                             material
     
     optional arguments:
       -h, --help            show this help message and exit
       -e EA_URL, --ea-url EA_URL
                             URL of the Enrollment Authority
       -a AA_URL, --aa-url AA_URL
                             URL of the Authorization Authority
       --g5-sim G5_SIM       Configuration of G5 simulator

First start

    $ mkdir itssA
    $ ./itss.py itssA
    Enrollment finished successfuly.
    Authorization ticket obtained successfuly.
    ITS-S identity: 14bc1ff472886760f630d7a50607013e8dc079d23b54cd62ac014ae4cffecd79e3f9d94268acd1411bce9554487653a6
    AT digest: 3618365b33dc6a3d
    Ready.
    Received verified message b'payload' from [3618365b33dc6a3d/authorization_ticket]
    ...

C-ITS standards

• ETSI TS 102 941 v1.1.1
• ETSI TS 103 097 v1.2.1