@inproceedings{backes04symmetric, author = {Backes, Michael and Pfitzmann, Birgit}, title = {Symmetric Encryption in a Simulatable Dolev-Yao Style Cryptographic Library}, booktitle = {Proceedings of 17th IEEE Computer Security Foundations Workshop (CSFW)}, month = {June}, year = {2004}, pages = {204-218}, note = {Preprint on IACR ePrint 2004/059} }