Message exchange payment transactions having coupons forming transaction client agreement with server receiving validation and multiple validations carried out with transaction passwords.

摘要

The line transaction method has a coupon (IC) carrying for each transaction a client agreement. The condition necessary for the transaction is that the server receives the validation agreement. A second condition is necessary for validation of the transaction agreement is that a number of validations must be achieved. The client agreement has a number of transactions (NTi), with transaction codes (CTi) which are passwords or keys. The client agreements are submitted to the validation server simulated or sequentially in a variable order, a number of exchanges forming the transaction.