US 12,014,338 B2
Device for directly transmitting electronic coin data records to another device, and payment system
Florian Gawlas, Munich (DE); Tilo Fritzhanns, Munich (DE); Wolfram Seidemann, Munich (DE); Verena Rapp, Munich (DE); and Maria Veleva, Munich (DE)
Assigned to GIESECKE+DEVRIENT ADVANCE52 GMBH, Munich (DE)
Appl. No. 17/604,171
Filed by GIESECKE+DEVRIENT ADVANCE52 GMBH, Munich (DE)
PCT Filed Apr. 14, 2020, PCT No. PCT/EP2020/060434
§ 371(c)(1), (2) Date Oct. 15, 2021,
PCT Pub. No. WO2020/212331, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 10 2019 002 731.0 (DE), filed on Apr. 15, 2019.
Prior Publication US 2022/0207500 A1, Jun. 30, 2022
Int. Cl. G06Q 20/06 (2012.01); G06Q 20/02 (2012.01); G06Q 20/10 (2012.01); G06Q 20/22 (2012.01); G06Q 20/32 (2012.01); G06Q 20/38 (2012.01); H04L 9/00 (2022.01); H04L 9/32 (2006.01)
CPC G06Q 20/0658 (2013.01) [G06Q 20/3825 (2013.01); H04L 9/008 (2013.01); H04L 2209/04 (2013.01); H04L 2209/42 (2013.01); H04L 2209/56 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A first device configured to directly transmit electronic coin data records to a second device, the first device comprising:
a first computing unit being communicatively connected to a first data storage, the first data storage having an electronic coin data record; and
an interface least providing a communication channel for outputting the at least one electronic coin data record from the first device to the second device; and
wherein the first computing unit is configured to:
mask the electronic coin data record in the first device by applying a homomorphic one-way function to the electronic coin data record to obtain a masked electronic coin data record for registering the masked electronic coin data record in a monitoring entity; and
output the electronic coin data record to the second device by means of said interface, the electronic coin data record being invalidated for further transmission in conjunction with the first device after being output to the second device;
wherein the first device is configured to transmit the electronic coin data record directly to the second device without using a network connection, the electronic coin data record being usable by the second device for subsequent transactions immediately after receipt of the electronic coin data record from the first device;
wherein the electronic coin data record includes a monetary amount and a concealment amount;
wherein said first computing unit masks a corresponding electronic coin data record to be switched as the electronic coin data record in order to obtain a corresponding masked electronic coin data record to be switched as the masked electronic coin data record which is registered in said monitoring entity;
wherein the monitoring entity comprises a database in which masked electronic coin records are stored and in which the masked electronic coin data record is registered and from which a validity status of the masked electronic coin data record is derived, without recording the transmission of the electronic coin data record from the first device to the second device, such that the first device and the second device remain anonymous in the monitoring entity.