Hi, you can change it to a digested form, either in md5 or in sha1 or some others(see java.security.MessageDigest). but sha1 should be safer. here's the choir you have to do.
1. in your server.xml, add to its child element <Realm> a new attribute named "digest" and with its value "SHA1"(whatever you want). 2. run this % java -classpath $CATALINA_HOME/server/lib/catalina.jar:/path/to/commons- logging.jar org.apache.catalina.realm.RealmBase -a sha1 <cleartext_password> you'll get the digested passphrase 3. use the digested passphrase as password in you tomcat-user.xml 4. be sure to restart tomcat and then you can try it the way digest means it should be difficult *BUT NOT IMPOSSIBLE* to decrypt in case anyone might be able to read that file, thus you should secure the user file and prevent others from reading it. -- Regards, Charlie