@Override
                public String getSharedSecret() {
                    // Hard coded shared secret.  Should not be used in production (see above warning).
                    return "2BB6E867BC7564162AB1FD26BE61E49365934FBA9B3E56B1323ABE104C798D5C"; //$NON-NLS-1$
                }
A simple class to generate and consume authentication tokens.  This is a very
naive token-based authentication mechanism.  It is useful for unit testing and
demos, but should not be used in production as it is not secure.  In 
production, it is better to use OAuth or some other mature bearer token style
authentication approach.

@author eric.wittmann@redhat.com
common/auth/src/main/java/io/apiman/common/auth/AuthTokenUtil.java