Secure Distributed Human Computation (Extended Abstract)

摘要

In Peha's Financial Cryptography 2004 invited talk, he described the Cypher-mint PayCash system, which allows people without bank accounts or credit cards (a sizeable segment of the U.S. population) to automatically and instantly cash checks, pay bills, or make Internet transactions through publicly-accessible kiosks. Since PayCash offers automated financial transactions and since the system uses (unprotected) kiosks, security is critical.