US 12,136,083 B2
Offline interception-free interaction with a cryptocurrency network using a network-disabled device
Edouard Vanham, Zonhoven (BE); Ruben Merre, Zonhoven (BE); Xavier Hendrickx, Zonhoven (BE); and Jeroen Meybosch, Zonhoven (BE)
Assigned to NGRAVE.IO NV, Zonhoven (BE)
Filed by Ngrave.IO NV, Zonhoven (BE)
Filed on Jan. 17, 2020, as Appl. No. 16/745,529.
Claims priority of application No. 19152881 (EP), filed on Jan. 21, 2019.
Prior Publication US 2020/0234285 A1, Jul. 23, 2020
Int. Cl. G06Q 20/40 (2012.01); G06Q 20/06 (2012.01); G06Q 20/36 (2012.01); G06Q 20/38 (2012.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01)
CPC G06Q 20/3674 (2013.01) [G06Q 20/0658 (2013.01); G06Q 20/3825 (2013.01); G06Q 20/3829 (2013.01); H04L 9/0825 (2013.01); H04L 9/3247 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for the fully offline interception-free interaction with a cryptocurrency network using a network-disabled device, the method comprises:
generating a cryptographic key pair on the network-disabled device, from one or more seeds, wherein the cryptographic key pair comprises a public key and a private key, wherein the private key is generated by transforming one or more seeds, using one or more functions, concatenations, or a combination thereof, and wherein the public key is generated from the private key using a digital signature algorithm or a variant thereof;
wirelessly transmitting a transaction signature request from a network-enabled device to the network-disabled device, the transaction signature request comprising a requested amount of cryptocurrency, a source address, a destination address, and metadata, wherein the transaction signature request is verified by a user on the network-disabled device;
cryptographically signing the transaction signature request by the network-disabled device using the private key, thereby creating a fully signed transaction; and
wirelessly transmitting the fully signed transaction from the network-disabled device to the network-enabled device for broadcast to the cryptocurrency network;
wherein one or more of the seeds used for the generation of a cryptographic key-pair, are generated using one or more environmental sensors and one or more biometric sensors; wherein the fully signed transaction is wirelessly transmitted by visualizing said fully signed transaction on the network-disabled device as at least one offline generated communication medium; and
wherein at least one of the one or more seeds using for generating a cryptographic key pair is a true random number or a true random vector generated using the one or more environmental sensors and the one or more biometric sensors.