taler.tex (950B)
1 \section{GNU Taler}\label{taler} 2 GNU Taler is an open protocol for electronic payment system using blind 3 signatures to protect the privacy of the customer. 4 One key component of the GNU Taler payment system is the exchange which is 5 responsible for exchanging existing money into electronic money. Customers can 6 retrieve funds from the exchange to make anonymous payments. The merchant is 7 not anonymous and thus can not hide the income. This helps to avoid tax evasion 8 and money laundering \cite{Taler}. 9 10 GNU Taler uses denominations to represent the values of a coins. A denomination 11 contains the unit of currency and the face value of a given coin. Each 12 denomination contains a cryptographic public key used by the exchange to verify 13 the denomination. The Donau is based on the exchange and requires some of its 14 parts to work. The concept of the denomination was adapted into the donation 15 units, which are used to represent the value of a donation. 16