install Java Cryptography Extensions (unlimited JCE)

install_jce_policy_jars.sh

# ABOUT:        https://en.wikipedia.org/wiki/Java_Cryptography_Extension
# AUTHOR:       gist.github.com/hangtwenty
# PREREQUISITE:
#   Download jce_policy*.zip from Oracle:
#   - Java 8: http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html
#   - Java 7: http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html

unzip $HOME/Downloads/jce_policy*.zip -d $HOME/Downloads/jce_policy_jars
jre_path="$JAVA_HOME/jre"
dest="$jre_path/lib/security"
if [ ! -d "$dest" ] ; then
  echo "$dest is supposed to exist and be a directory"
  exit 127
fi
for jar in $( find $HOME/Downloads/jce_policy_jars/ -name '*.jar' );
  do echo "[.] installing $jar into $dest"
  sudo cp $jar $dest
done