[Unit]
Description=Entropy Daemon based on the HAVEGE algorithm
Documentation=man:haveged(8) http://www.issihosts.com/haveged/
DefaultDependencies=no
After=apparmor.service systemd-tmpfiles-setup.service systemd-tmpfiles-setup-dev.service
Before=sysinit.target shutdown.target

[Service]
EnvironmentFile=-/etc/default/haveged
ExecStart=/usr/sbin/haveged --Foreground --verbose=1 $DAEMON_ARGS
Restart=always
SuccessExitStatus=137 143
SecureBits=noroot-locked
CapabilityBoundingSet=CAP_SYS_ADMIN
PrivateTmp=true
PrivateDevices=true
PrivateNetwork=true
ProtectSystem=full
ProtectHome=true
ProtectHostname=true
ProtectKernelLogs=true
ProtectKernelModules=true
RestrictNamespaces=true
RestrictRealtime=true

LockPersonality=true
MemoryDenyWriteExecute=true
SystemCallArchitectures=native
SystemCallFilter=@basic-io @file-system @io-event @network-io @signal
SystemCallFilter=arch_prctl brk ioctl mprotect sysinfo

[Install]
WantedBy=sysinit.target