SG11202113362XA - Key recovery using encrypted secret shares - Google Patents

Key recovery using encrypted secret shares

Info

Publication number
SG11202113362XA
SG11202113362XA SG11202113362XA SG11202113362XA SG11202113362XA SG 11202113362X A SG11202113362X A SG 11202113362XA SG 11202113362X A SG11202113362X A SG 11202113362XA SG 11202113362X A SG11202113362X A SG 11202113362XA SG 11202113362X A SG11202113362X A SG 11202113362XA
Authority
SG
Singapore
Prior art keywords
key recovery
encrypted secret
secret shares
shares
encrypted
Prior art date
Application number
SG11202113362XA
Other languages
English (en)
Inventor
Jonathan Dolan
Michael D Ornelas
Kevin Hartley
Pengyu Chen
Juston Johnson
Original Assignee
Tzero Ip Llc
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
Application filed by Tzero Ip Llc filed Critical Tzero Ip Llc
Publication of SG11202113362XA publication Critical patent/SG11202113362XA/en

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
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0631—Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES 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
    • H04L9/08—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)
    • H04L9/0822—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 key encryption key
    • 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
    • H04L9/085—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
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • 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
    • H04L9/3006—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
    • H04L9/3026—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters details relating to polynomials generation, e.g. generation of irreducible polynomials
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Algebra (AREA)
  • Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
SG11202113362XA 2019-06-10 2020-06-01 Key recovery using encrypted secret shares SG11202113362XA (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962859568P 2019-06-10 2019-06-10
US201962931753P 2019-11-06 2019-11-06
PCT/US2020/035543 WO2020251795A1 (en) 2019-06-10 2020-06-01 Key recovery using encrypted secret shares

Publications (1)

Publication Number Publication Date
SG11202113362XA true SG11202113362XA (en) 2021-12-30

Family

ID=73650897

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202113362XA SG11202113362XA (en) 2019-06-10 2020-06-01 Key recovery using encrypted secret shares

Country Status (6)

Country Link
US (1) US11374750B2 (https=)
EP (1) EP3981103A4 (https=)
JP (1) JP2022536645A (https=)
KR (1) KR20220016910A (https=)
SG (1) SG11202113362XA (https=)
WO (1) WO2020251795A1 (https=)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11387999B2 (en) * 2017-09-29 2022-07-12 Workjam Inc. Access to secured information
US12047493B2 (en) * 2019-10-30 2024-07-23 EMC IP Holding Company LLC Threshold-based override of data privacy using distributed ledgers and key shares
US11271728B2 (en) * 2019-12-20 2022-03-08 Fujitsu Limited Secure key management
US11870898B2 (en) * 2020-05-21 2024-01-09 Workday, Inc. Split keys for wallet recovery
US11271739B2 (en) * 2020-06-25 2022-03-08 Digital 14 Llc Error-correcting key agreement for noisy cryptographic systems
GB2597539A (en) * 2020-07-28 2022-02-02 Nchain Holdings Ltd Generating shared private keys
US11632244B2 (en) * 2020-09-14 2023-04-18 Paypal, Inc. Techniques for single round multi-party computation for digital signatures
EP4229827A4 (en) * 2020-10-15 2024-10-23 Keycrypt Labs Pty Ltd SECURE CLOUD STORAGE AND CLIENT-SIDE ENCRYPTED DATA RECOVERY
CN112491550B (zh) * 2020-12-22 2022-05-17 湖南科技学院 一种基于车联网的移动终端设备可信认证方法及系统
CN112769567B (zh) * 2021-01-19 2023-04-07 北京枫玉科技有限公司 一种区块链hd私钥找回方法
US20220271933A1 (en) * 2021-02-19 2022-08-25 Samsung Electronics Co., Ltd. System and method for device to device secret backup and recovery
US11973865B2 (en) * 2021-03-05 2024-04-30 Michael Heu Device and method of storing a seed phrase
CN112926087B (zh) * 2021-03-09 2023-05-05 南京信息工程大学 基于二维码具有验证功能与高嵌入容量的秘密共享方法
US12547995B2 (en) 2021-03-31 2026-02-10 Jio Platforms Limited System and method for secure and traceable fund transfer operation through a distributed ledger
CN113346999B (zh) * 2021-08-09 2021-10-26 国网浙江省电力有限公司杭州供电公司 一种基于拆分加密的大脑中枢系统
GB202111737D0 (en) * 2021-08-16 2021-09-29 Blockhouse Tech Limited Storing cryptographic keys securely
EP4311162A4 (en) * 2021-08-20 2024-10-09 Samsung Electronics Co., Ltd. Electronic device for generating mnemonic words of private key and operating method of electronic device
US20230099755A1 (en) * 2021-09-24 2023-03-30 Sap Se Sql extension to key transfer system with authenticity, confidentiality, and integrity
US12255987B2 (en) * 2021-11-30 2025-03-18 Florian Kerschbaum System and method for secure detection of similarity and dissimilarity of events
WO2024004116A1 (ja) * 2022-06-30 2024-01-04 日本電気株式会社 鍵発行装置、情報処理システム、方法及びコンピュータ可読媒体
US11777727B1 (en) * 2022-08-29 2023-10-03 Osom Products, Inc. Distributed digital wallet seed phrase
US20240144264A1 (en) * 2022-10-31 2024-05-02 Dj3N, Llc Cryptographic improvements to cellular data transfer utilizing blockchain wallets
KR102878596B1 (ko) * 2022-11-09 2025-10-30 주식회사 다오솔루션 개인키 분산 저장 방법 및 이를 수행하기 위한 개인키 분산 저장 시스템
FR3144463B1 (fr) * 2022-12-23 2025-01-03 Ledger Procédé pour la sauvegarde et la restauration d'un secret détenu par un portefeuille de cryptoactifs
FR3144465B1 (fr) * 2022-12-23 2025-01-03 Ledger Procédé pour la sauvegarde et la restauration personnalisées d’un secret détenu par un portefeuille de cryptoactifs
CN120530598A (zh) * 2022-12-23 2025-08-22 莱德基尔公司 一种用于在电子设备与服务器之间建立安全数据连接的方法
US12327243B2 (en) * 2022-12-30 2025-06-10 Ironvest, Inc. Dynamic multi-party computation for securely utilizing and storing a secret data-item
US20240283642A1 (en) * 2023-02-22 2024-08-22 Thales Dis Usa, Inc. System and method for secure transfer of biometric templates between biometric device
US12580743B2 (en) * 2023-05-23 2026-03-17 Reazon Holdings, Inc. Information processing method
WO2025129355A1 (en) * 2023-12-22 2025-06-26 Kelvin Zero Inc. Systems and methods for resilient multiparty cryptography
JP7724918B1 (ja) * 2024-06-28 2025-08-18 楽天グループ株式会社 秘密鍵復元システム、秘密鍵復元方法、及びプログラム

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09212457A (ja) * 1996-01-30 1997-08-15 Mitsubishi Electric Corp デジタル双方向通信端末における暗号化・復号化装置
US5796830A (en) * 1996-07-29 1998-08-18 International Business Machines Corporation Interoperable cryptographic key recovery system
JPH11239124A (ja) * 1998-02-23 1999-08-31 Nippon Telegr & Teleph Corp <Ntt> 秘密鍵回復方法および装置
DE60033376T2 (de) * 1999-12-20 2007-11-29 Dai Nippon Printing Co., Ltd. Verteilte datenarchivierungsvorrichtung und system
JP2002077134A (ja) * 2000-08-31 2002-03-15 Toshiba Corp サーバ・クライアント・システム、データサーバ、データクライアント及びデータ提供・利用方法並びに記録媒体
JP2002252611A (ja) * 2000-12-19 2002-09-06 Matsushita Electric Ind Co Ltd 暗号通信システム、送信装置及び受信装置
US7181015B2 (en) * 2001-07-31 2007-02-20 Mcafee, Inc. Method and apparatus for cryptographic key establishment using an identity based symmetric keying technique
JP2003348065A (ja) * 2002-05-23 2003-12-05 Japan Datacom Co Ltd データ分散保管システム
JP4794970B2 (ja) * 2005-09-30 2011-10-19 株式会社エヌ・ティ・ティ・データ 秘密情報の保護方法及び通信装置
JP2007300157A (ja) * 2006-04-27 2007-11-15 Toshiba Corp 秘密分散システム、装置及びプログラム
US8170216B2 (en) 2008-06-18 2012-05-01 Apple Inc. Techniques for validating and sharing secrets
CN103636160B (zh) * 2011-03-07 2016-11-23 安全第一公司 安全文件共享方法与系统
US8731203B2 (en) * 2012-02-13 2014-05-20 Alephcloud Systems, Inc. Securing a secret of a user
US9485096B2 (en) 2013-02-06 2016-11-01 Apurva Shrivastava Encryption / decryption of data with non-persistent, non-shared passkey
US10354325B1 (en) 2013-06-28 2019-07-16 Winklevoss Ip, Llc Computer-generated graphical user interface
JP6529820B2 (ja) * 2015-05-13 2019-06-12 株式会社 インターコム 通信装置及びプログラム
US9768953B2 (en) * 2015-09-30 2017-09-19 Pure Storage, Inc. Resharing of a split secret
US10333705B2 (en) 2016-04-30 2019-06-25 Civic Technologies, Inc. Methods and apparatus for providing attestation of information using a centralized or distributed ledger
US10547592B2 (en) * 2017-01-19 2020-01-28 Hewlett Packard Enterprise Development Lp Computing a global sum that preserves privacy of parties in a multi-party environment
US10263775B2 (en) * 2017-06-23 2019-04-16 Microsoft Technology Licensing, Llc Policy-based key recovery
EP3688922A4 (en) * 2017-09-27 2020-09-09 Visa International Service Association SECURE SHARED KEY ESTABLISHMENT FOR PAIR-TO-PAIR COMMUNICATIONS
EP4216487B1 (en) * 2017-10-30 2024-08-21 Visa International Service Association Multi-party threshold authenticated encryption
WO2019143852A1 (en) 2018-01-17 2019-07-25 Medici Ventrues, Inc. Multi-approval system using m of n keys to perform an action at a customer device
US10084600B1 (en) * 2018-04-16 2018-09-25 Xage Security, Inc. Decentralized information protection for confidentiality and tamper-proofing on distributed database
US11063754B2 (en) * 2018-05-01 2021-07-13 Huawei Technologies Co., Ltd. Systems, devices, and methods for hybrid secret sharing
DE102018111081A1 (de) * 2018-05-08 2019-11-14 Uniscon Universal Identity Control Gmbh Verfahren zum Sichern eines Datenaustausches in einer verteilten Infrastruktur
KR101954863B1 (ko) * 2018-07-09 2019-03-06 서울대학교산학협력단 온라인 월렛 장치 및 이의 생성과 검증 방법
US20200052889A1 (en) * 2018-08-09 2020-02-13 Cyberark Software Ltd. Secure distributed transmission and recombination of secrets
WO2020076722A1 (en) * 2018-10-12 2020-04-16 Medici Ventures, Inc. Encrypted asset encryption key parts allowing for assembly of an asset encryption key using a subset of the encrypted asset encryption key parts

Also Published As

Publication number Publication date
JP2022536645A (ja) 2022-08-18
US20200389306A1 (en) 2020-12-10
WO2020251795A1 (en) 2020-12-17
EP3981103A1 (en) 2022-04-13
KR20220016910A (ko) 2022-02-10
EP3981103A4 (en) 2023-06-21
US11374750B2 (en) 2022-06-28

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