diff --git a/tomcat-uidm/bin/digest.sh b/tomcat-uidm/bin/digest.sh
new file mode 100644
index 0000000..1b5d5e7
--- /dev/null
+++ b/tomcat-uidm/bin/digest.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# -----------------------------------------------------------------------------
+# Script to digest password using the algorithm specified
+# -----------------------------------------------------------------------------
+
+# resolve links - $0 may be a softlink
+PRG="$0"
+
+while [ -h "$PRG" ] ; do
+  ls=`ls -ld "$PRG"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '/.*' > /dev/null; then
+    PRG="$link"
+  else
+    PRG=`dirname "$PRG"`/"$link"
+  fi
+done
+ 
+PRGDIR=`dirname "$PRG"`
+EXECUTABLE=tool-wrapper.sh
+
+# Check that target executable exists
+if [ ! -x "$PRGDIR"/"$EXECUTABLE" ]; then
+  echo "Cannot find $PRGDIR/$EXECUTABLE"
+  echo "The file is absent or does not have execute permission"
+  echo "This file is needed to run this program"
+  exit 1
+fi
+
+exec "$PRGDIR"/"$EXECUTABLE" -server org.apache.catalina.realm.RealmBase "$@"