diff --git a/docker/ntpd/Dockerfile.enc b/docker/ntpd/Dockerfile.enc
new file mode 100644
index 0000000..b0f8fcc
--- /dev/null
+++ b/docker/ntpd/Dockerfile.enc
@@ -0,0 +1,9 @@
+FROM daniviga/ntpd
+
+COPY ./chrony.keys /etc/chrony/chrony.keys
+
+RUN echo "keyfile /etc/chrony/chrony.keys" \
+        >> /etc/chrony/chrony.conf 
+
+EXPOSE 123/udp
+ENTRYPOINT ["chronyd", "-d", "-s", "-x"]
diff --git a/docker/ntpd/chrony.keys.sample b/docker/ntpd/chrony.keys.sample
new file mode 100644
index 0000000..2c452ee
--- /dev/null
+++ b/docker/ntpd/chrony.keys.sample
@@ -0,0 +1 @@
+1 MD5 HEX:D8ACA3A254EF59F83C35CEEFF6EBD2C7C67DB3D9