Figure integration update

The PKI architecture and its functionalities considered here are the one standardized by the ETSI in ETSI TS 102 940 and ETSI TS 102 941.

The C-ITS PKI shall provide the different services required by the RCA, EC and AA roles defined by the European C-ITS trust model. In the figure we also identify the role of a Misbehaviour Authority (MA): entity responsible to receive misbehaviour reports coming from ITS-S identifying other misbehaving ITS and emits action requests to the other C-ITS PKI authorities to react to misbehaving behaviour of ITS-S. The current PP does not define requirement for the MA services since the MA communication and services are not yet fully define and standardized. However the PP should be updated when it is.

![~~CAPTION~~](media/C-ITS_PKI_Architecture.png)

![Figure 4.7.3-1: C-ITS_PKI_Architecture](media/C-ITS_PKI_Architecture.png)

The considered threats for the C-ITS PKI are illustrated in the following figure.

![~~CAPTION~~](media/ITS_PKI_Threats_200108.png)

![Figure 4.7.3.3.5-1: ITS_PKI_Threats_200108](media/ITS_PKI_Threats_200108.png)

**Figure 4.7.3.3.5-1: ITS_PKI_Threats_200108**

### C.1.1 Riks levels calculation

<div align="center">

<img src="media/ImpactScale.png" width="600">

<strong>Figure C.1.1</strong>

</div>

![Figure C.1.1-1: Impact scale](media/ImpactScale.png)

**Figure C.1.1-1: Impact scale**

<div align="center">

<img src="media/LikelihoodScale.png" width="600">

<strong>Figure C.1.6</strong>

</div>

![Figure C.1.1-2: Likelihood scale](media/LikelihoodScale.png)

**Figure C.1.1-2: Likelihood scale**

<div align="center">

<img src="media/RiskCalculationMatrix.png" width="600">

<strong>Figure C.1.2</strong>

</div>

![Figure C.1.1-3: Risk calculation matrix](media/RiskCalculationMatrix.png)

**Figure C.1.1-4: Risk calculation matrix**

### C.1.2 Likelihood risk factors

<div align="center">

<img src="media/RiskFactorDep.png" width="600">

<strong>Figure C.1.3</strong>

</div>

![Figure C.1.2-1: Risk factor dep](media/RiskFactorDep.png)

**Figure C.1.2-1: Risk factor dep**

<div align="center">

<img src="media/RiskFactorNet.png" width="600">

<strong>Figure C.1.4</strong>

</div>

![Figure C.1.2-2: Risk factor net](media/RiskFactorNet.png)

**Figure C.1.2-2: Risk factor net**

<div align="center">

<img src="media/RiskFactorUsr.png" width="600">

<strong>Figure C.1.5</strong>

</div>

![Figure C.1.2-3: Risk factor user](media/RiskFactorUsr.png)

**Figure C.1.2-3: Risk factor user**

<div align="center">

<img src="media/RiskFactorOps.png" width="600">

<strong>Figure C.1.9</strong>

</div>

![Figure C.1.2-4: Risk factor ops](media/RiskFactorOps.png)

**Figure C.1.2-4: Risk factor ops**

<div align="center">

<img src="media/RiskFactorInt.png" width="600">

<strong>Figure C.1.8</strong>

</div>

![Figure C.1.2-5: Risk factor int](media/RiskFactorInt.png)

**Figure C.1.2-5: Risk factor int**

### C.1.3 Impact risk factors

<div align="center">

<img src="media/RiskFactorAva.png" width="600">

<strong>Figure C.1.7</strong>

</div>

![Figure C.1.3-1: Risk factor ava](media/ImpRiskFactorAvaactScale.png)

**Figure C.1.3-1: Risk factor ava**

<div align="center">

<img src="media/RiskFactorIn.png" width="600">

<strong>Figure C.1.8</strong>

</div>

![Figure C.1.3-2: Risk factor in](media/RiskFactorIn.png)

**Figure C.1.3-2: Risk factor in**

<div align="center">

<img src="media/RiskFactorConf.png" width="600">

<strong>Figure C.1.11</strong>

</div>

![Figure C.1.3-3: Risk factor conf](media/RiskFactorConf.png)

**Figure C.1.3-3: Risk factor conf**

<div align="center">

<img src="media/RiskFactorTra.png" width="600">

<strong>Figure C.1.13</strong>

</div>

![Figure C.1.3-4: Risk factor tra](media/RiskFactorTra.png)

**Figure C.1.3-4: Risk factor tra**

### C.1.4 Risk acceptance threshold

<div align="center">

<img src="media/RiskAcceptanceThreshold.png" width="600">

<strong>Figure C.1.10</strong>

</div>

![Figure C.1.4-1: Risk acceptance threshold](media/RiskAcceptanceThreshold.png)

**Figure C.1.4-1: Risk acceptance threshold**

<div align="center">

<img src="media/RiskFactorInt.png" width="600">

<strong>Figure C.1.12</strong>

</div>

![Figure C.1.4-2: Risk factor int](media/RiskFactorInt.png)

**Figure C.1.4-2: Risk factor int**