@misc{cryptoeprint:2001:044, author = {Birgit Baum-Waidner}, title = {Optimistic Asynchronous Multi-Party Contract Signing with Reduced Number of Rounds}, howpublished = {Cryptology ePrint Archive, Report 2001/044}, year = {2001}, url = {http://eprint.iacr.org/2001/044}, }