Install Java JDK and set it as the system's default Java kit.

Clone this repository and navigate into the directory.

Generate the public and private keys for the clients and the server according to the instructions provided here and store them in ./clientkeys and ./serverkeys respectively.

Build the project

mvn clean install

Start the server

java -jar .\leshan-server-demo\target\leshan-server-demo-2.0.0-SNAPSHOT-jar-with-dependencies.jar -pubk .\serverkeys\cpubk.der -prik .\serverkeys\cprik.der -m .\models\

Start the client

java -jar .\leshan-client-demo\target\leshan-client-demo-2.0.0-SNAPSHOT-jar-with-dependencies.jar -n clientDTLS -m .\models\ -cpubk .\clientkeys\cpubk.der -cprik .\clientkeys\cprik.der -spubk .\clientkeys\serverPubKey.der