Taler GlossaryΒΆ

auditor
trusted third party that verifies that the exchange is operating correctly
bank
traditional financial service provider who offers wire transfers between accounts
coin
coins are individual token representing a certain amount of value, also known as the denomination of the coin
contract
the proposal signed by the wallet.
denomination
unit of currency, specifies both the currency and the face value of a coin
denomination key
RSA key used by the exchange to certify that a given coin is valid and of a particular denomination
deposit
operation by which a merchant passes coins to an exchange, expecting the exchange to credit his bank account in the future using a wire transfer
dirty
a coin is dirty if its public key may be known to an entity other than the customer, thereby creating the danger of some entity being able to link multiple transactions of coin’s owner if the coin is not refreshed first
extension
implementation of a wallet for browsers
fresh coin
a coin is fresh if its public key is only known to the customer
master key
offline key used by the exchange to certify denomination keys and message signing keys
message signing key
key used by the exchange to sign online messages, other than coins
owner
a coin is owned by the entity that knows the private key of the coin
proof
message that cryptographically demonstrates that a particular claim is correct
proposal
a sketch that has been completed and signed by the merchant backend.
reserve
funds set aside for future use; either the balance of a customer at the exchange ready for withdrawal, or the funds kept in the exchange’s bank account to cover obligations from coins in circulation
refreshing
operation by which a dirty coin is converted into one or more :fresh: coins
refund
operation by which a merchant steps back from the right to funds that he obtained from a deposit operation, giving the right to the funds back to the customer
sharing
users can share ownership of a coin by sharing access to the coin’s private key, thereby allowing all co-owners to spend the coin at any time.
sketch
specification of the details of a transaction, specifies the payment obligations for the customer (i.e. the amount), the deliverables of the merchant and other related information, such as deadlines or locations; However, it lacks some information that the backend is supposed to provide. In other words, after the backend adds the missing information to the sketch and signs it, it becomes a proposal.
signing key
see message signing key.
spending
operation by which a customer gives a merchant the right to deposit coins in return for merchandise
transfer
method of sending funds between bank accounts
transaction
method by which ownership is exclusively transferred from one entity to another
transaction id
unique number by which a merchant identifies a transaction
wallet
software running on a customer’s computer; withdraws, stores and spends coins
wire transfer
see transfer
wire transfer identifier
subject of a wire transfer; usually a random string to uniquely identify the transfer
withdrawal
operation by which a wallet can convert funds from a reserve to fresh coins