+ * Configure an instance of {@link JdbcUsersConnection} as persistent
+ * store of user/connection-mappings.
+ * <p>
+ * The app-secret is reused as password for the encryption of the data.
+ * The salt can be changed in the <code>pom.xml</code>
+ * <p>
+ * This does only work, if you have the Java Crypto Extension (JCE) in
+ * full strength version, since Spring Security is using a 256-bit key.