US 11,381,392 B2Granted

Device for off-line storage and usage of digital assets

AssigneeMfe Capital, LLC

InventorsMarc Francis Ettensohn, Jordan Daniel Brown, Benjamin Joseph Shepley

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Abstract

The present disclosure relates to off-line generation, storage, and usage of digital assets, such as cryptocurrency. In particular, methods and systems are disclosed for generating off-line cryptographic key pairs for the off-line storage of digital assets using storage techniques that do not involve connecting to the Internet. In one example, a method for generating off-line cryptographic key pairs includes receiving user input from a user, determining a key generation algorithm based on the user input, wherein the key generation algorithm relates to a digital asset, generating an off-line cryptographic key pair based on the user input and key generation algorithm, and outputting the off-line cryptographic key pair.

Claims14

Dependent claims

A method for generating off-line cryptographic key pairs for storing digital assets, the method comprising:

receiving, at one or more processors, user input from a user;
determining, at the one or more processors, a key generation algorithm based on the user input, wherein the key generation algorithm is determined from a set of at least a first and a second key generation algorithms, wherein each of said first and second key generation algorithms relates to a digital asset, said digital asset being a representation of something that has financial value;
wherein said first key generation algorithm corresponds to a first digital asset and said second key generation algorithm is different from said first key generation algorithm and corresponds to a second digital asset different from said first digital asset, wherein said digital assets are different types of blockchain based assets;
generating, at the one or more processors, at least one off-line cryptographic key pair based on user generated randomization input that is created by the user physically manipulating a user device for a period of time so as to interact with at least one key generation algorithm from the first and second key generation algorithms, wherein generating the off-line cryptographic key pair further comprises:
monitoring, at the one or more processors, a level of randomization in the user input, wherein monitoring the level of randomization in the user input further comprises:
comparing, at the one or more processors, the user input to a threshold level, and if the user input crosses the threshold level generating, at the one or more processors, an alert to the user that a sufficient level of randomness has been reached;
or if the user randomization input does not cross the threshold level:
generating, at the one or more processors, an alert to the user that the sufficient level of randomness has not been reached;
and
outputting, at the one or more processors, the at least one off-line cryptographic key pair.

7 more elements

A system for generating off-line cryptographic key pairs for storing digital assets, the system comprising:

one or more processors;
one or more memories coupled to the one or more processors;
one or more output devices coupled to the one or more processors;
wherein the one or more memories store computer executable instructions configured to cause the one or more processors to:
receive user input from a user;
determine a key generation algorithm based on the user input, wherein the key generation algorithm is determined from a set of at least a first and a second key generation algorithms wherein each of said first and second key generation algorithms relates to a digital asset, said digital asset being a representation of something that has financial value;
wherein said first key generation algorithm corresponds to a first digital asset and said second key generation algorithm is different from said first key generation algorithm and corresponds to a second digital asset different from said first digital asset, wherein said digital assets are different types of blockchain based assets;
generate at least one off-line cryptographic key pair based on user generated randomization input that is created by the user physically manipulating a user device for a period of time so as to interact with at least one key generation algorithm from the first and second key generation algorithms, wherein to generate the off-line cryptographic key pair the computer executable instructions are further configured to cause the one or more processors to:
monitor a level of randomization in the user input, wherein to monitor the level of randomization in the user input the computer executable instructions are further configured to cause the one or more processors to:
compare the user input to a threshold level, and if the user input crosses the threshold level:
generate an alert to the user that a sufficient level of randomness has been reached;
or if the user randomization input does not cross the threshold level:
generate an alert to the user that the sufficient level of randomness has not been reached;
and
output the at least one off-line cryptographic key pair.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/980,117Filed 15 May 2018
Published: US 2019/0356484 A121 Nov 2019
Granted: 5 Jul 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04L 9/0866
Generation of secret information including derivation or calculation of cryptographic keys or passwords: involving user or device identifiers,…
G06Q 20/3678
Involving electronic purses or money safes: e-cash details, e.g. blinded, divisible or detecting double spending
H04L 9/0869
Generation of secret information including derivation or calculation of cryptographic keys or passwords: involving random numbers or seeds
H04L 9/0891
Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords: revocation or update of secret…