@inproceedings{DrMa_DPM18, author = {Constantin C{\u{a}}t{\u{a}}lin Dr{\u{a}}gan and Daniel Gardham and Mark Manulis}, title = {{Hierarchical Attribute-Based Signatures}}, booktitle = {Cryptology and Network Security - CANS 2018}, year = {2018}, series = {LNCS}, volume = {11124}, pages = {213--234}, publisher = {Springer}}