@inproceedings{CDM07, author = {J. Cederquist and M. Torabi Dashti and S. Mauw}, title = {A Certified Email Protocol Using Key Chains}, booktitle = {Proceedings of the 21st International Conference on Advanced Information Networking and Applications Workshops - Volume 01 (AINAW'07)}, year = {2007}, pages = {525--530}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, url = {http://satoss.uni.lu/papers/CDM07.pdf} }