Combined reliable and unreliable data transmission

摘要

To provide a method for securely communicating between a payment reader, a merchant device and a payment device via a wireless connection.SOLUTION: A method includes: performing, by a first device, a first wireless bonding to establish a first paring between the first device and a second device via a wireless communication interface; establishing, by the first device and the second device, a plurality of first mutual communications without exchanging additional messages during performing the first wireless bonding; establishing one or more long-term bonding keys for encrypting first information exchanged between the first device and the second device; performing, by the first device, a second wireless bonding to establish an additional second paring between the first device and a third device via the wireless communication interface; and establishing, by the first device and the third device, a plurality of second mutual communications without exchanging additional messages during performing the second wireless bonding. During performing the second wireless bonding, second information is exchanged between the first device and the third device, and the first wireless bonding is removed based on the establishment of the second wireless bonding.SELECTED DRAWING: None