Rajput, Dinesh. Spring 5 design patterns: master efficient application development with patterns such as proxy singleton the template method and more / By Dinesh Rajput - 1st ed. - Mumbai : Packt Publishing Ltd , 2017. - viii,377p. ; PB 23.5 cm. ISBN: 9781788299459 Subjects--Topical Terms: Cryptography-Data encryption. Dewey Class. No.: 006.671 / RAJD