@inproceedings {261121, author = {Tomi Poutanen and Heather Hinton and Michael Stumm}, title = {{NetCents}: A Lightweight Protocol for Secure Micropayments}, booktitle = {3rd USENIX Workshop on Electronic Commerce (EC 98)}, year = {1998}, address = {Boston, MA}, url = {https://www.usenix.org/conference/3rd-usenix-workshop-electronic-commerce/netcents-lightweight-protocol-secure}, publisher = {USENIX Association}, month = aug }