SG11202005567QA - System and method for securely sharing cryptographic material - Google Patents

System and method for securely sharing cryptographic material

Info

Publication number: SG11202005567QA
Authority: SG; Singapore
Prior art keywords: cryptographic material; securely sharing; sharing cryptographic; securely; sharing
Prior art date: 2017-12-13

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2017-12-13Priority claimed from GBGB1720768.9Aexternal-prioritypatent/GB201720768D0/en

2018-08-23Priority claimed from GBGB1813770.3Aexternal-prioritypatent/GB201813770D0/en

2018-08-23Priority claimed from GBGB1813772.9Aexternal-prioritypatent/GB201813772D0/en

2018-12-07Application filed by Nchain Holdings LtdfiledCriticalNchain Holdings Ltd

2020-07-29Publication of SG11202005567QApublicationCriticalpatent/SG11202005567QA/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
- H04L9/0841—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving Diffie-Hellman or related key agreement protocols
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/17—Function evaluation by approximation methods, e.g. inter- or extrapolation, smoothing, least mean square method
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
- G06F7/72—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using residue arithmetic
- G06F7/724—Finite field arithmetic
- G06F7/725—Finite field arithmetic over elliptic curves
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
- H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
- H04L9/3093—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving Lattices or polynomial equations, e.g. NTRU scheme
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3218—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
- H04L9/3239—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions

Landscapes

Engineering & Computer Science (AREA)
Computer Security & Cryptography (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Theoretical Computer Science (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Mathematical Analysis (AREA)
Mathematical Optimization (AREA)
Pure & Applied Mathematics (AREA)
Mathematical Physics (AREA)
Algebra (AREA)
Computing Systems (AREA)
Computational Mathematics (AREA)
Data Mining & Analysis (AREA)
General Engineering & Computer Science (AREA)
Databases & Information Systems (AREA)
Software Systems (AREA)
Storage Device Security (AREA)
Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Data Exchanges In Wide-Area Networks (AREA)
Management, Administration, Business Operations System, And Electronic Commerce (AREA)

SG11202005567QA2017-12-132018-12-07System and method for securely sharing cryptographic materialSG11202005567QA (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
GBGB1720768.9AGB201720768D0 (en)	2017-12-13	2017-12-13	Computer-implemented system and method
GBGB1813770.3AGB201813770D0 (en)	2018-08-23	2018-08-23	Computer-Implemented system and method
GBGB1813772.9AGB201813772D0 (en)	2018-08-23	2018-08-23	Computer-Implemented system and method
PCT/IB2018/059770WO2019116187A1 (en)	2017-12-13	2018-12-07	System and method for securely sharing cryptographic material

Publications (1)

Publication Number	Publication Date
SG11202005567QAtrue SG11202005567QA (en)	2020-07-29

Family

ID=65013743

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
SG11202005567QASG11202005567QA (en)	2017-12-13	2018-12-07	System and method for securely sharing cryptographic material
SG11202005564WASG11202005564WA (en)	2017-12-13	2018-12-12	System and method for multi-party generation of blockchain-based smart contract

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
SG11202005564WASG11202005564WA (en)	2017-12-13	2018-12-12	System and method for multi-party generation of blockchain-based smart contract

Country Status (9)

Country	Link
US (8)	US11683164B2 (en)
EP (3)	EP3725028A1 (en)
JP (5)	JP7453911B2 (en)
KR (4)	KR20250095647A (en)
CN (4)	CN118449685A (en)
SG (2)	SG11202005567QA (en)
TW (1)	TWI794366B (en)
WO (2)	WO2019116187A1 (en)
ZA (2)	ZA202004256B (en)

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CN111466100A (en)	2020-07-28
JP2021507563A (en)	2021-02-22
KR20200094173A (en)	2020-08-06
US20240195611A1 (en)	2024-06-13
US11888976B2 (en)	2024-01-30
JP7252233B2 (en)	2023-04-04
KR102827634B1 (en)	2025-07-01
EP3725032A1 (en)	2020-10-21
US11271729B2 (en)	2022-03-08
CN118449685A (en)	2024-08-06
JP2025096331A (en)	2025-06-26
US11683164B2 (en)	2023-06-20
CN111466095A (en)	2020-07-28
US20210075610A1 (en)	2021-03-11
JP2024063228A (en)	2024-05-10
WO2019116187A1 (en)	2019-06-20
US20240348429A1 (en)	2024-10-17
TWI794366B (en)	2023-03-01
US12238206B2 (en)	2025-02-25
KR102810891B1 (en)	2025-05-20
KR20200096248A (en)	2020-08-11
CN111466100B (en)	2023-10-31
US20230370253A1 (en)	2023-11-16
CN111466095B (en)	2024-05-14
EP4009577A1 (en)	2022-06-08
ZA202004255B (en)	2023-12-20
JP2021507562A (en)	2021-02-22
JP2023068139A (en)	2023-05-16
US20250293862A1 (en)	2025-09-18
US12294644B2 (en)	2025-05-06
KR20250096889A (en)	2025-06-27
SG11202005564WA (en)	2020-07-29
CN117478315A (en)	2024-01-30
EP3725032B1 (en)	2021-11-17
US20210075597A1 (en)	2021-03-11
TW201928755A (en)	2019-07-16
KR20250095647A (en)	2025-06-26
WO2019116246A1 (en)	2019-06-20
US20220271919A1 (en)	2022-08-25
ZA202004256B (en)	2023-01-25
US20250097020A1 (en)	2025-03-20
EP3725028A1 (en)	2020-10-21
JP7453911B2 (en)	2024-03-21

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SG11202005567QA (en)	2020-07-29	System and method for securely sharing cryptographic material
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