IP Library Granted Patent US 11,663,589
Granted Patent B2
US 11,663,589 · App. 16/745,548 · Granted May 30, 2023

Long-term offline management of cryptographic parameters

Inventors: Edouard Vanham (Zonhoven, BE); Ruben Merre (Zonhoven, BE); Xavier Hendrickx (Zonhoven, BE); Jeroen Meybosch (Zonhoven, BE)
Assignee: NGRAVE NV
G06Q20/3829B42D25/29G06F12/1408G06Q20/065G09C1/00G09C1/02G09C1/04G09C1/14G09C5/00A63F2003/0431
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Quick Facts
Patent No.
US 11,663,589
App. No.
16/745,548
Granted
May 30, 2023
Kind
B2
Abstract

A method for the interception-proof transmission of at least one cryptographic parameter from a user to an encrypted offline storage medium, comprising steps of: cloaking an upward portion of a substrate with an upper plate, characterized in that said upper plate comprises a multitude of indicia, wherein each indicium has a corresponding manipulation indicator; sequentially positioning a manipulation apparatus over one or more of the manipulation indicators; mechanically manipulating the substrate, after each sequential positioning of the manipulation apparatus, using said manipulation apparatus, characterized in that the manipulation indicator of the desired indicium overlaps with one mechanical manipulation unit of the substrate; and deconstructing said substrate in two or more complementary units, characterized in that said complementary units each comprises at least one mechanical manipulation unit administered by the manipulation apparatus.

Claims (15)

1. An apparatus for the interception-proof transmission of at least one cryptographic parameter from a user to an encrypted offline storage medium, the cryptographic parameter consisting of information essential for the functioning of a cryptographic system, the apparatus comprising:

a manipulation apparatus;

a substrate; and

an upper plate, wherein said upper plate comprises a multitude of indicia, wherein each indicium has a corresponding manipulation indicator, and

wherein said multitude of indicia are provided in a number of encryption units on the upper plate, whereby the number of encryption units is at least equal to a character length of the at least one cryptographic parameter, whereby each of said number of encryption units comprises at least an equal number of indicia to a number of characters in a writing system of the at least one cryptographic parameter and whereby the indicia of each encryption unit correspond with a random sequence of each of the characters in said writing system; and wherein the cryptographic parameter is provided in a hexadecimal numeral system.

2. The apparatus according to claim 1 , characterized in that the substrate is substantially planar and has a thickness of at least 1 mm.

3. The apparatus according to claim 1 , characterized in that the substrate substantially comprises metal, and whereby said metal has a brushed surface finishing.

4. The apparatus according to claim 1 , characterized in that the upper plate has a thickness of at most 1.5 mm.

5. The apparatus according to claim 1 , characterized in that the upper plate substantially comprises metal.

6. The apparatus according to claim 1 , characterized in that the upper plate comprises at least one positioning aperture, whereby the substrate comprises at least one corresponding positioning indicator and whereby said at least one corresponding positioning indicator is a hump.

7. The apparatus according to claim 1 , characterized in that said multitude of indicia are provided in a number of encryption units on the upper plate, whereby the number of encryption units is at least equal to a character length of the at least one cryptographic parameter and whereby each of said number of encryption units comprises at least an equal number of indicia to a number of characters in a writing system of the at least one cryptographic parameter.

8. The apparatus according to claim 7 , characterized in that said encryption units are columns and whereby each column comprises at least an equal number of rows, each comprising an indicium, to an amount of characters in a writing system of the at least one cryptographic parameter.

9. The apparatus according to claim 1 , characterized in that the indicia of each encryption unit correspond with a random sequence of each of the characters in said writing system and whereby said random sequence is customizable by a user for each encryption unit.

10. Apparatus according to claim 1 , configured for storage of a cryptographic parameter of a cryptocurrency network, for storage of a cryptographic key pair of a cryptocurrency network, for storage of a private key of a cryptocurrency network, or for storage of a master seed of a cryptocurrency wallet.

11. The apparatus according to claim 1 , wherein the cryptographic parameter is selected from the group consisting of cryptocurrency rights, title rights, probate rights, asset rights, access rights, and mnemonic words.

Assignments (3)
CHANGE OF NAME Recorded Jul 14, 2021
From: NGRAVE NV
To: NGRAVE.IO NV
Reel/Frame 056863/0139 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE NAME PREVIOUSLY RECORDED AT REEL: 052187 FRAME: 0970. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Apr 1, 2020
From: VANHAM, EDOUARD; MERRE, RUBEN; HENDRICKX, XAVIER; MEYBOSCH, JEROEN
To: NGRAVE NV
Reel/Frame 052280/0267 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 23, 2020
From: VANHAM, EDOUARD; MERRE, RUBEN; HENDRICKX, XAVIER; MEYBOSCH, JEROEN
To: NGRAVE NG
Reel/Frame 052187/0970 →
Priority Claims (1)
EP 19152885 · Jan 21, 2019 · regional
Continuity (1)
Related Publication 20200234296A1 · Jul 23, 2020
Cited By (1)
US 12,597,369