EA201891822A1 - Безопасность персональных устройств с использованием криптографии на основе эллиптических кривых для разделения секрета - Google Patents

Безопасность персональных устройств с использованием криптографии на основе эллиптических кривых для разделения секрета

Info

Publication number
EA201891822A1
EA201891822A1 EA201891822A EA201891822A EA201891822A1 EA 201891822 A1 EA201891822 A1 EA 201891822A1 EA 201891822 A EA201891822 A EA 201891822A EA 201891822 A EA201891822 A EA 201891822A EA 201891822 A1 EA201891822 A1 EA 201891822A1
Authority
EA
Eurasian Patent Office
Prior art keywords
secret
key
security
separate
personal devices
Prior art date
Application number
EA201891822A
Other languages
English (en)
Inventor
Крейг Стивен Райт
Стефани Савана
Original Assignee
Нчейн Холдингс Лимитед
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.)
Filing date
Publication date
Priority claimed from GBGB1603122.1A external-priority patent/GB201603122D0/en
Priority claimed from GBGB1603117.1A external-priority patent/GB201603117D0/en
Application filed by Нчейн Холдингс Лимитед filed Critical Нчейн Холдингс Лимитед
Publication of EA201891822A1 publication Critical patent/EA201891822A1/ru

Links

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
    • 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
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
    • 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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • 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
    • H04L9/32—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
    • H04L9/3247—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 involving digital signatures
    • H04L9/3252—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 involving digital signatures using DSA or related signature schemes, e.g. elliptic based signatures, ElGamal or Schnorr schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

Предложен способ (400) шифрования данных в электронном устройстве (3), которое связано с ключевым устройством (5). Каждое устройство связано с парой ключей ассиметричной криптографии, где каждая пара содержит первый секретный ключ и первый открытый ключ. Соответствующие вторые секретный и открытый ключи могут быть определены на основе первого секретного ключа, первого открытого ключа и детерминированного ключа. Секрет может быть определен на основе вторых секретного и открытого ключей. Данные в электронном устройстве (3) могут быть зашифрованы с использованием секрета или ключа шифрования, основанного на секрете. Информация, указывающая детерминированный ключ, может быть отправлена в ключевое устройство (5), где эта информация может сохраняться.
EA201891822A 2016-02-23 2017-02-14 Безопасность персональных устройств с использованием криптографии на основе эллиптических кривых для разделения секрета EA201891822A1 (ru)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB1603122.1A GB201603122D0 (en) 2016-02-23 2016-02-23 Personal device security using cryptocurrency wallets
GBGB1603117.1A GB201603117D0 (en) 2016-02-23 2016-02-23 Determining a common secret for two blockchain nodes for the secure exchange of information
GB201619301 2016-11-15
PCT/IB2017/050815 WO2017145002A1 (en) 2016-02-23 2017-02-14 Personal device security using elliptic curve cryptography for secret sharing

Publications (1)

Publication Number Publication Date
EA201891822A1 true EA201891822A1 (ru) 2019-02-28

Family

ID=58108693

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201891822A EA201891822A1 (ru) 2016-02-23 2017-02-14 Безопасность персональных устройств с использованием криптографии на основе эллиптических кривых для разделения секрета

Country Status (16)

Country Link
US (3) US10715336B2 (ru)
EP (1) EP3257006B1 (ru)
JP (1) JP6528008B2 (ru)
KR (1) KR101999188B1 (ru)
CN (2) CN115225268A (ru)
AU (1) AU2017222421B2 (ru)
BR (1) BR112018016810A2 (ru)
CA (1) CA3014748C (ru)
EA (1) EA201891822A1 (ru)
GB (1) GB2560274C (ru)
IL (1) IL261212B (ru)
MX (1) MX2018010044A (ru)
PH (1) PH12018501745A1 (ru)
SG (1) SG11201806702XA (ru)
WO (1) WO2017145002A1 (ru)
ZA (1) ZA201805019B (ru)

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