Elektronisches Bargeld

Transaktionsmodell


Alice - Bob

TO => TI
     <=
TR => TC
     <=
TN
 
TO - tranaction offer - offer key + amount
TI  - tranaction initialization - offer key + amount
TR - tranaction requerst - request key + amount
TC - tranaction confirmation  request key + amount
TN - tranaction notification    

offer key is 30 seconds linked to Alice
request key is 5 seconds linked to offer key