@inproceedings{AbChMaPo_AFRICACRYPT10, author = {Michel Abdalla and C{\'e}line Chevalier and Mark Manulis and David Pointcheval}, title = {{Flexible Group Key Exchange with On-Demand Computation of Subgroup Keys}}, booktitle = {AFRICACRYPT 2010)}, publisher = {Springer}, series = {LNCS}, volume = {6055}, pages = {351--368}, year = {2010}, month = {May}}