@misc{cryptoeprint:2009:023, author = {Dennis Hofheinz and Dominique Unruh and Jörn Müller-Quade}, title = {Polynomial Runtime and Composability}, howpublished = {Cryptology ePrint Archive, Report 2009/023}, year = {2009}, url = {http://eprint.iacr.org/2009/023}, }