SimulateX509Device

Code sample to simulate a device connected to IoT Hub using an x.509 certificate.

Setup

In IoT Hub:
- Under Certificates, upload your signing certificate (e.g. Intermediate cert) and verify it.
- Under IoT Device, create a new IoT device. Select X.509 CA Signed and make note of the Device ID you create.
Using OpenSSL, generate a certificate for your IoT device as follows. In this example, the Device ID is device123.

// Generate key pair for device; output is a pem file (pkcs8 format)
openssl genrsa -out device123.key 2048

// Generate CSR. Fill in the questions and ensure CN = device123
openssl req -new -key device123.key -out device123.csr

// Generate device cert signed using intermediate CA cert and key
openssl x509 -req -days 1730 -in device123.csr -CA ia.cer -CAkey ia.key -set_serial 01 -out device123.cer

// The IoT Device SDK needs both the Signed Certificate as well as the private key information. 
// It expects to load a single PFX-formatted Bundle containing all necessarily information.
// We can combine the Key and Certificate to a PFX archive as follows:
openssl pkcs12 -export -out device123.pfx -inkey device123.key -in device123.cer

Open Program.cs and update deviceId pfxPath and iotHubFqdn
Build and run the sample.

khilscher/SimulateX509Device

SimulateX509Device

Setup