[Unit] Description="Démon HMAC-SHA256" [Service] Type=simple User=cryptopy Group=cryptosrv Environment="SOCKET_PATH=/run/cryptosrv/crypto.sock" "KEY_PATH=/etc/cryptosrv/key.bin" UMask=0007 RuntimeDirectoryMode=0750 RuntimeDirectory=cryptosrv ExecStart=/usr/bin/python3 /opt/cryptosrv/crypto.py