AU2018347186B2 - Recovering encrypted transaction information in blockchain confidential transactions - Google Patents

Recovering encrypted transaction information in blockchain confidential transactions Download PDF

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Publication number
AU2018347186B2
AU2018347186B2 AU2018347186A AU2018347186A AU2018347186B2 AU 2018347186 B2 AU2018347186 B2 AU 2018347186B2 AU 2018347186 A AU2018347186 A AU 2018347186A AU 2018347186 A AU2018347186 A AU 2018347186A AU 2018347186 B2 AU2018347186 B2 AU 2018347186B2
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transaction
blockchain
secret key
client node
encrypted
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AU2018347186A1 (en
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Lichun Li
Zheng Liu
Shan YIN
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Advanced New Technologies Co Ltd
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Advanced New Technologies Co Ltd
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    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/389—Keeping log of transactions for guaranteeing non-repudiation of a transaction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0435—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
    • 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
    • H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
    • 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
    • H04L9/3218—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
    • H04L9/3221—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 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q2220/00—Business processing using cryptography
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • General Business, Economics & Management (AREA)
  • Finance (AREA)
  • Strategic Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Storage Device Security (AREA)
AU2018347186A 2018-11-07 2018-11-07 Recovering encrypted transaction information in blockchain confidential transactions Active AU2018347186B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/114322 WO2019072262A2 (en) 2018-11-07 2018-11-07 RECOVERING CHILLED TRANSACTION INFORMATION IN CONFIDENTIAL BLOCK CHAIN TRANSACTIONS

Publications (2)

Publication Number Publication Date
AU2018347186A1 AU2018347186A1 (en) 2020-05-21
AU2018347186B2 true AU2018347186B2 (en) 2020-09-03

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AU2018347186A Active AU2018347186B2 (en) 2018-11-07 2018-11-07 Recovering encrypted transaction information in blockchain confidential transactions

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US (3) US11055709B2 (enExample)
EP (1) EP3549306A4 (enExample)
JP (1) JP6811317B2 (enExample)
KR (1) KR102208891B1 (enExample)
CN (1) CN110291756B (enExample)
AU (1) AU2018347186B2 (enExample)
BR (1) BR112019008168A2 (enExample)
CA (1) CA3041156A1 (enExample)
MX (1) MX2019004655A (enExample)
RU (1) RU2726157C1 (enExample)
SG (1) SG11201903562QA (enExample)
WO (1) WO2019072262A2 (enExample)
ZA (1) ZA201902557B (enExample)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10757154B1 (en) 2015-11-24 2020-08-25 Experian Information Solutions, Inc. Real-time event-based notification system
AU2018215082B2 (en) 2017-01-31 2022-06-30 Experian Information Solutions, Inc. Massive scale heterogeneous data ingestion and user resolution
US10735183B1 (en) 2017-06-30 2020-08-04 Experian Information Solutions, Inc. Symmetric encryption for private smart contracts among multiple parties in a private peer-to-peer network
CN109241016B (zh) * 2018-08-14 2020-07-07 阿里巴巴集团控股有限公司 多方安全计算方法及装置、电子设备
US11983990B2 (en) 2018-08-22 2024-05-14 Aristocrat Technologies Australia Pty Limited Gaming machine and method for evaluating player reactions
US10593152B1 (en) 2018-08-22 2020-03-17 Aristocrat Technologies Australia Pty Limited Gaming machine and method for evaluating player reactions
KR102180991B1 (ko) 2018-11-07 2020-12-17 어드밴스드 뉴 테크놀로지스 씨오., 엘티디. 블록 체인 기밀 거래의 규제
EP3549306A4 (en) 2018-11-07 2020-01-01 Alibaba Group Holding Limited RECOVERY OF ENCRYPTED TRANSACTION INFORMATION IN CONFIDENTIAL BLOCK CHAIN TRANSACTIONS
US11151558B2 (en) * 2018-12-12 2021-10-19 American Express Travel Related Services Company, Inc Zero-knowledge proof payments using blockchain
WO2020146667A1 (en) * 2019-01-11 2020-07-16 Experian Information Solutions, Inc. Systems and methods for secure data aggregation and computation
US11189130B2 (en) 2019-01-23 2021-11-30 Aristocrat Technologies Australia Pty Limited Gaming machine security devices and methods
CN110224985B (zh) * 2019-05-07 2022-07-08 平安科技（深圳）有限公司 数据处理的方法及相关装置
CN110264196B (zh) * 2019-05-20 2021-04-23 创新先进技术有限公司 结合代码标注与用户类型的有条件的收据存储方法和节点
US11431486B2 (en) 2019-05-22 2022-08-30 Salesforce.Com, Inc. System or method to implement consensus on read on distributed ledger/blockchain
GB201907392D0 (en) 2019-05-24 2019-07-10 Nchain Holdings Ltd Proof-of-work
GB201907396D0 (en) * 2019-05-24 2019-07-10 Nchain Holdings Ltd Hash function attacks
US11373480B2 (en) * 2019-05-31 2022-06-28 Aristocrat Technologies, Inc. Progressive systems on a distributed ledger
US11308761B2 (en) 2019-05-31 2022-04-19 Aristocrat Technologies, Inc. Ticketing systems on a distributed ledger
US11263866B2 (en) 2019-05-31 2022-03-01 Aristocrat Technologies, Inc. Securely storing machine data on a non-volatile memory device
CN114026586A (zh) * 2019-06-26 2022-02-08 皇家飞利浦有限公司 用于授予对加密资产的访问权的零知识或有支付协议
CA3103884C (en) * 2019-07-18 2025-02-11 Allfunds Blockchain, S.L.U. BLOCKCHAIN STRUCTURE WITH LIMITED TRANSACTIONS
US11424916B2 (en) * 2019-07-19 2022-08-23 Fujitsu Limited Selectively private distributed computation for blockchain
US11088851B2 (en) * 2019-09-04 2021-08-10 Gk8 Ltd Systems and methods for signing of a message
US11018856B2 (en) * 2019-09-11 2021-05-25 Guardtime Sa Auditable system and methods for secret sharing
CN110601834B (zh) * 2019-09-30 2023-02-10 深圳市迅雷网络技术有限公司 一种共识方法、装置、设备及可读存储介质
EP3799352B1 (en) 2019-09-30 2025-04-16 Lukka, Inc. A method for secure transferring of information through a network between an origin virtual asset service provider and a destination virtual asset service provider
US11195371B2 (en) 2019-12-04 2021-12-07 Aristocrat Technologies, Inc. Preparation and installation of gaming devices using blockchain
CN111050317B (zh) * 2019-12-07 2022-08-02 江西理工大学 一种基于联盟区块链的智能交通数据安全共享方法
CN110991655B (zh) * 2019-12-17 2021-04-02 支付宝(杭州)信息技术有限公司 多方联合进行模型数据处理的方法及装置
CN111160908B (zh) * 2019-12-31 2023-11-17 深圳市迅雷网络技术有限公司 基于区块链的供应链交易隐私保护系统、方法及相关设备
CN111161075B (zh) * 2019-12-31 2024-04-05 深圳市迅雷网络技术有限公司 区块链交易数据证明监管方法、系统及相关设备
US12099997B1 (en) 2020-01-31 2024-09-24 Steven Mark Hoffberg Tokenized fungible liabilities
CN111339569B (zh) * 2020-02-26 2023-05-26 百度在线网络技术（北京）有限公司 区块链数据处理方法、装置、电子设备和介质
CN113496434A (zh) * 2020-04-03 2021-10-12 山东浪潮质量链科技有限公司 一种监管方法、设备及介质
CN111640016A (zh) * 2020-04-07 2020-09-08 山东浪潮质量链科技有限公司 一种隐私交易的验证方法、装置、设备及介质
US11636726B2 (en) 2020-05-08 2023-04-25 Aristocrat Technologies, Inc. Systems and methods for gaming machine diagnostic analysis
US11909859B2 (en) * 2020-06-02 2024-02-20 Sap Se Removing access to blockchain data
US11777720B2 (en) * 2020-06-12 2023-10-03 Nagravision Sàrl Distributed anonymized compliant encryption management system
CN111695902A (zh) * 2020-06-16 2020-09-22 深圳点链科技有限公司 基于区块链的互联方法、装置及计算机存储介质
DE102020004121A1 (de) * 2020-07-08 2022-01-13 Giesecke+Devrient Gesellschaft mit beschränkter Haftung Verfahren, teilnehmereinheit, transaktionsregister und bezahlsystem zum verwalten von transaktionsdatensätzen
US11641665B2 (en) 2020-09-09 2023-05-02 Self Financial, Inc. Resource utilization retrieval and modification
US20220075877A1 (en) 2020-09-09 2022-03-10 Self Financial, Inc. Interface and system for updating isolated repositories
US11636467B2 (en) 2020-09-14 2023-04-25 Visa International Service Association System, method, and computer program product for secured, encrypted transaction processing
CN112865959B (zh) * 2020-12-30 2022-05-31 杭州趣链科技有限公司 分布式节点设备的共识方法、节点设备及分布式网络
CN113225189B (zh) * 2021-01-05 2024-02-02 上海零数众合信息科技有限公司 一种基于量子抗性的环形保密业务方法
CN113225324B (zh) * 2021-04-26 2022-10-04 安徽中科晶格技术有限公司 区块链匿名账户创建方法、系统、设备及存储介质
US12223797B2 (en) 2021-05-14 2025-02-11 Aristocrat Technologies, Inc. Slidable gaming chair including return-to-home feature
CN113141377B (zh) * 2021-05-14 2023-05-02 南京慧链和信数字信息科技研究院有限公司 一种基于区块链的数据安全管理系统
CN113438070B (zh) * 2021-05-25 2023-07-21 中国科学院计算技术研究所 基于capss的区块链密钥恢复方法及系统
CN113438072B (zh) * 2021-06-09 2022-04-08 北京理工大学 一种基于派生链的区块链隐蔽通信方法
CN113645020A (zh) * 2021-07-06 2021-11-12 北京理工大学 一种基于安全多方计算的联盟链隐私保护方法
US20230024386A1 (en) 2021-07-09 2023-01-26 Aristocrat Technologies, Inc. Data collection cloud system for electronic gaming machines
CN113793146B (zh) * 2021-08-02 2025-01-07 扬州致知信息技术有限公司 一种平行链同步交易的验证方法、设备及储存介质
US20230087602A1 (en) * 2021-09-19 2023-03-23 International Business Machines Corporation Privacy-preserving state reference
EP4416891A1 (en) * 2021-10-15 2024-08-21 Chia Network Inc. Method for securing private structured databases within a public blockchain
KR102467441B1 (ko) * 2021-10-28 2022-11-17 (주)씨큐하이 텐더민트 bft를 이용한 비정형 데이터의 암호화 방법, 장치 및 컴퓨터-판독가능 기록매체
CN119278450A (zh) * 2022-07-14 2025-01-07 富士通株式会社 证明生成程序、证明生成方法、信息处理装置
CN116961892A (zh) * 2023-02-03 2023-10-27 腾讯科技（深圳）有限公司 基于区块链的密钥生成方法、装置、电子设备和可读介质
KR102866461B1 (ko) * 2023-02-09 2025-09-29 한양대학교 산학협력단 블록체인을 이용하는 물류 관리 방법 및 장치
US20240330939A1 (en) * 2023-03-31 2024-10-03 Tencent Technology (Shenzhen) Company Limited Transaction uploading method, associated apparatus, and medium
US12432052B2 (en) 2023-10-02 2025-09-30 Bank Of America Corporation System and method for validating an interaction using an agreement key
WO2025122521A1 (en) * 2023-12-05 2025-06-12 Ava Labs, Inc. Encrypted transfers in a distributed ledger
JP7627923B1 (ja) 2023-12-25 2025-02-07 ジクリプト インコーポレイテッド ペデルセンコミットを活用した身元基盤暗号化方法およびこれに対応した復号化方法
CN118264398B (zh) * 2024-01-19 2025-07-04 云南财经大学 基于零知识证明的密文数据安全共享与访问控制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160358165A1 (en) * 2015-06-08 2016-12-08 Blockstream Corporation Cryptographically concealing amounts transacted on a ledger while preserving a network's ability to verify the transaction
WO2018109010A1 (en) * 2016-12-15 2018-06-21 Luxembourg Institute Of Science And Technology (List) P2p network data distribution and retrieval using blockchain log

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06293245A (ja) 1993-04-08 1994-10-21 Takata Kk 助手席用エアバッグ装置
CA2305249A1 (en) 2000-04-14 2001-10-14 Branko Sarcanin Virtual safe
US7356516B2 (en) 2002-06-13 2008-04-08 Visa U.S.A. Inc. Method and system for facilitating electronic dispute resolution
ATE366010T1 (de) * 2002-09-17 2007-07-15 Errikos Pitsos Verfahren und vorrichtung zur bereitstellung einer liste von öffentlichen schlüsseln in einem public-key-system
US8156029B2 (en) * 2005-02-24 2012-04-10 Michael Gregory Szydlo Process for verifiably communicating risk characteristics of an investment portfolio
SG11201602093TA (en) 2013-09-20 2016-04-28 Visa Int Service Ass Secure remote payment transaction processing including consumer authentication
US9787647B2 (en) 2014-12-02 2017-10-10 Microsoft Technology Licensing, Llc Secure computer evaluation of decision trees
US20160162897A1 (en) 2014-12-03 2016-06-09 The Filing Cabinet, LLC System and method for user authentication using crypto-currency transactions as access tokens
US20170048209A1 (en) 2015-07-14 2017-02-16 Fmr Llc Crypto Key Recovery and Social Aggregating, Fractionally Efficient Transfer Guidance, Conditional Triggered Transaction, Datastructures, Apparatuses, Methods and Systems
US12452075B2 (en) 2015-07-14 2025-10-21 Fmr Llc Asynchronous crypto asset transfer and social aggregating, fractionally efficient transfer guidance, conditional triggered transaction, datastructures, apparatuses, methods and systems
JP6799061B2 (ja) * 2016-02-23 2020-12-09 エヌチェーン ホールディングス リミテッドＮｃｈａｉｎ Ｈｏｌｄｉｎｇｓ Ｌｉｍｉｔｅｄ ウォレット管理システムと併せたブロックチェーンベースのシステムのための暗号鍵のセキュアなマルチパーティ損失耐性のある記憶及び転送
NZ746878A (en) 2016-04-01 2022-11-25 Jpmorgan Chase Bank Na Systems and methods for providing data privacy in a private distributed ledger
US10992649B2 (en) 2016-04-01 2021-04-27 Consensys Software Inc. Systems and methods for privacy in distributed ledger transactions
DE102016206916B4 (de) * 2016-04-22 2023-07-06 Bundesdruckerei Gmbh Elektronisches Verfahren zur kryptographisch gesicherten Überweisung eines Betrags einer Kryptowährung
CN107438002B (zh) 2016-05-27 2022-02-11 索尼公司 基于区块链的系统以及系统中的电子设备和方法
EP3472968A4 (en) 2016-06-16 2019-11-27 The Bank Of New York Mellon DISTRIBUTED, CENTRALLY CREATED BLOCKCHAIN NETWORK
JP6663809B2 (ja) 2016-07-07 2020-03-13 株式会社日立製作所 監査装置、監査機能付匿名送金方法及びプログラム
CN107666388B (zh) * 2016-07-28 2019-11-01 郑珂威 基于完全同态加密方法的区块链信息加密方法
US10657526B2 (en) 2016-10-28 2020-05-19 International Business Machines Corporation System and method to dynamically setup a private sub-blockchain based on agility of transaction processing
JP6293245B1 (ja) 2016-11-25 2018-03-14 株式会社三井住友銀行 強化されたセキュリティを有する取引相互監視システム
CN106549749B (zh) * 2016-12-06 2019-12-24 杭州趣链科技有限公司 一种基于加法同态加密的区块链隐私保护方法
US10158479B2 (en) * 2017-02-06 2018-12-18 Northern Trust Corporation Systems and methods for generating, uploading and executing code blocks within distributed network nodes
CN106982205B (zh) 2017-03-01 2020-05-19 中钞信用卡产业发展有限公司杭州区块链技术研究院 基于区块链的数字资产处理方法和装置
TW201837815A (zh) 2017-03-28 2018-10-16 泰德陽光有限公司 分散式稽核方法、裝置及其系統
US10742393B2 (en) 2017-04-25 2020-08-11 Microsoft Technology Licensing, Llc Confidentiality in a consortium blockchain network
CN107566337B (zh) 2017-07-26 2019-08-09 阿里巴巴集团控股有限公司 一种区块链节点间的通信方法及装置
US10924466B2 (en) 2017-07-28 2021-02-16 SmartAxiom, Inc. System and method for IOT security
CN108418783B (zh) 2017-09-01 2021-03-19 矩阵元技术（深圳）有限公司 一种保护区块链智能合约隐私的方法、介质
US10361859B2 (en) 2017-10-06 2019-07-23 Stealthpath, Inc. Methods for internet communication security
CN107833135A (zh) 2017-10-30 2018-03-23 中山大学 一种基于区块链的公平电子投票协议
CN108021821A (zh) * 2017-11-28 2018-05-11 北京航空航天大学 多中心区块链交易隐私保护系统及方法
CN108418689B (zh) 2017-11-30 2020-07-10 矩阵元技术（深圳）有限公司 一种适合区块链隐私保护的零知识证明方法和介质
US11057225B2 (en) 2017-12-07 2021-07-06 International Business Machines Corporation Enforcing compute equity models in distributed blockchain
US11238449B2 (en) 2017-12-18 2022-02-01 Nec Corporation Efficient validation of transaction policy compliance in a distributed ledger system
US10938557B2 (en) 2018-03-02 2021-03-02 International Business Machines Corporation Distributed ledger for generating and verifying random sequence
CN108492105A (zh) 2018-03-07 2018-09-04 物数（上海）信息科技有限公司 基于区块链的资产交易监管方法、系统、设备及存储介质
CN108712261B (zh) * 2018-05-10 2021-02-26 杭州智块网络科技有限公司 一种基于区块链的密钥生成方法、装置及介质
CN108764874B (zh) * 2018-05-17 2021-09-07 深圳前海微众银行股份有限公司 基于区块链的匿名转账方法、系统及存储介质
CN108769173B (zh) * 2018-05-21 2021-11-09 阿里体育有限公司 运行智能合约的区块链实现方法及设备
US10171992B1 (en) 2018-06-22 2019-01-01 International Business Machines Corporation Switching mobile service provider using blockchain
KR102180991B1 (ko) 2018-11-07 2020-12-17 어드밴스드 뉴 테크놀로지스 씨오., 엘티디. 블록 체인 기밀 거래의 규제
EP3549306A4 (en) 2018-11-07 2020-01-01 Alibaba Group Holding Limited RECOVERY OF ENCRYPTED TRANSACTION INFORMATION IN CONFIDENTIAL BLOCK CHAIN TRANSACTIONS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160358165A1 (en) * 2015-06-08 2016-12-08 Blockstream Corporation Cryptographically concealing amounts transacted on a ledger while preserving a network's ability to verify the transaction
WO2018109010A1 (en) * 2016-12-15 2018-06-21 Luxembourg Institute Of Science And Technology (List) P2p network data distribution and retrieval using blockchain log

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PETER LINDER, "DEcryption Contract ENforcement Tool (DECENT): A Practical Alternative to Government Decryption Backdoors", IACR, INTERNATIONAL ASSOCIATION FOR CRYPTOLOGIC RESEARCH, (2016-03-22), vol. 20160401:160351, pages 1 - 18 *

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