ES2881319T3 - Protección de datos de cadena de bloques mediante cifrado homomórfico - Google Patents

Protección de datos de cadena de bloques mediante cifrado homomórfico Download PDF

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Publication number
ES2881319T3
ES2881319T3 ES18867268T ES18867268T ES2881319T3 ES 2881319 T3 ES2881319 T3 ES 2881319T3 ES 18867268 T ES18867268 T ES 18867268T ES 18867268 T ES18867268 T ES 18867268T ES 2881319 T3 ES2881319 T3 ES 2881319T3
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account
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blockchain
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Baoli Ma
Wenbin Zhang
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Advanced New Technologies Co Ltd
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Advanced New Technologies Co Ltd
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    • 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
    • G06Q20/08—Payment architectures
    • G06Q20/10—Payment architectures specially adapted for electronic funds transfer [EFT] systems; specially adapted for home banking systems
    • 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
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
    • G06Q20/367—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes
    • G06Q20/3674—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes involving authentication
    • 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
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
    • G06Q20/367—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes
    • G06Q20/3676—Balancing accounts
    • 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
    • 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
    • G06Q20/3821—Electronic credentials
    • G06Q20/38215—Use of certificates or encrypted proofs of transaction rights
    • 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
    • G06Q20/3823—Payment protocols; Details thereof insuring higher security of transaction combining multiple encryption tools for 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
    • 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
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H04L63/102—Entity profiles
    • 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
    • H04L63/12—Applying verification of the received information
    • 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
    • H04L9/008—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving homomorphic encryption
    • 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
    • H04L9/0637—Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
    • H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • 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
    • H04L9/3218—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
    • 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
    • H04L9/32—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
    • H04L9/3263—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 certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • Strategic Management (AREA)
  • Computing Systems (AREA)
  • Economics (AREA)
  • Development Economics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Analysis (AREA)
  • Power Engineering (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Storage Device Security (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
ES18867268T 2018-11-07 2018-11-07 Protección de datos de cadena de bloques mediante cifrado homomórfico Active ES2881319T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/114344 WO2019072264A2 (en) 2018-11-07 2018-11-07 PROTECTION OF BLOCK CHAIN DATA USING A HOMOMORPHIC ENCRYPTION

Publications (1)

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ES2881319T3 true ES2881319T3 (es) 2021-11-29

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US (1) US10664835B2 (enExample)
EP (1) EP3545483B1 (enExample)
JP (2) JP2020502864A (enExample)
KR (1) KR102215245B1 (enExample)
CN (1) CN110073633B (enExample)
AU (1) AU2018348317B2 (enExample)
BR (1) BR112019008148B1 (enExample)
CA (1) CA3041200C (enExample)
ES (1) ES2881319T3 (enExample)
MX (1) MX385270B (enExample)
PH (1) PH12019500898A1 (enExample)
PL (1) PL3545483T3 (enExample)
RU (1) RU2727161C1 (enExample)
SG (1) SG11201903553VA (enExample)
TW (1) TWI695613B (enExample)
WO (1) WO2019072264A2 (enExample)
ZA (1) ZA201902554B (enExample)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11777729B2 (en) 2017-01-20 2023-10-03 Enveil, Inc. Secure analytics using term generation and homomorphic encryption
US11196541B2 (en) 2017-01-20 2021-12-07 Enveil, Inc. Secure machine learning analytics using homomorphic encryption
US10972251B2 (en) 2017-01-20 2021-04-06 Enveil, Inc. Secure web browsing via homomorphic encryption
WO2018136801A1 (en) 2017-01-20 2018-07-26 Enveil, Inc. End-to-end secure operations using a query matrix
US10880275B2 (en) 2017-01-20 2020-12-29 Enveil, Inc. Secure analytics using homomorphic and injective format-preserving encryption
US11507683B2 (en) 2017-01-20 2022-11-22 Enveil, Inc. Query processing with adaptive risk decisioning
US11102015B2 (en) * 2018-05-08 2021-08-24 Visa International Service Association Sybil-resistant identity generation
US10902133B2 (en) 2018-10-25 2021-01-26 Enveil, Inc. Computational operations in enclave computing environments
RU2708344C1 (ru) * 2018-11-07 2019-12-05 Алибаба Груп Холдинг Лимитед Защита данных цепочек блоков с использованием гомоморфного шифрования
US10817262B2 (en) 2018-11-08 2020-10-27 Enveil, Inc. Reduced and pipelined hardware architecture for Montgomery Modular Multiplication
DE102019002731A1 (de) 2019-04-15 2020-10-15 Giesecke+Devrient Gesellschaft mit beschränkter Haftung Gerät zum direkten Übertragen von elektronischen Münzdatensätzen an ein anderes Gerät sowie Bezahlsystem
CN110020541B (zh) * 2019-04-19 2020-11-03 北京理工大学 一种基于区块链的隐私保护的声誉评价方法及系统
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
CN110276684B (zh) * 2019-05-20 2021-04-23 创新先进技术有限公司 结合交易类型和事件函数类型的收据存储方法和节点
CN110348231B (zh) * 2019-06-18 2020-08-14 阿里巴巴集团控股有限公司 实现隐私保护的数据同态加解密方法及装置
US10778410B2 (en) 2019-06-18 2020-09-15 Alibaba Group Holding Limited Homomorphic data encryption method and apparatus for implementing privacy protection
GB201913704D0 (en) * 2019-09-23 2019-11-06 Nchain Holdings Ltd Computer implemented method and system for storing certified data on a blockchain
CN110730187A (zh) * 2019-10-22 2020-01-24 全链通有限公司 基于区块链的交易验证方法、记账节点及介质
CN110827121B (zh) * 2019-10-22 2023-08-18 全链通有限公司 基于区块链的电子投标方法、设备及存储介质
CN110766407A (zh) * 2019-10-22 2020-02-07 全链通有限公司 基于区块链的交易验证方法、记账节点及介质
CN110830452A (zh) * 2019-10-22 2020-02-21 全链通有限公司 基于区块链的电子投标方法、设备及存储介质
CN110768979B (zh) * 2019-10-22 2021-12-24 吕春芳 一种基于蚂蚁算法的区块链大数据处理方法及系统
US11328080B2 (en) 2019-11-18 2022-05-10 Frostbyte, Llc Cryptographic key management
CN111194066B (zh) * 2020-01-10 2022-02-11 中国联合网络通信集团有限公司 一种基站联盟方法及装置
US12099997B1 (en) 2020-01-31 2024-09-24 Steven Mark Hoffberg Tokenized fungible liabilities
WO2020098833A2 (en) 2020-02-03 2020-05-22 Alipay (Hangzhou) Information Technology Co., Ltd. Blockchain-based trustable gurantees
WO2020098835A2 (en) 2020-02-03 2020-05-22 Alipay (Hangzhou) Information Technology Co., Ltd. Blockchain-based trustable gurantees
WO2020098837A2 (en) 2020-02-03 2020-05-22 Alipay (Hangzhou) Information Technology Co., Ltd. Blockchain-based trustable guarantees
EP3799644B1 (en) 2020-02-03 2022-11-02 Alipay (Hangzhou) Information Technology Co., Ltd. Blockchain-based trustable guarantees
SG11202013145YA (en) 2020-02-03 2021-01-28 Alipay Hangzhou Inf Tech Co Ltd Blockchain-based trustable guarantees
SG11202012851YA (en) 2020-02-03 2021-01-28 Alipay Hangzhou Inf Tech Co Ltd Blockchain-based trustable guarantees
CN111160913B (zh) * 2020-04-02 2020-07-17 支付宝(杭州)信息技术有限公司 区块链账户余额的存证、恢复方法及装置
CN111989707B (zh) 2020-06-08 2024-04-16 支付宝实验室(新加坡)有限公司 管理基于区块链的海关清关服务的用户权限
WO2020169125A2 (en) 2020-06-08 2020-08-27 Alipay Labs (singapore) Pte. Ltd. Blockchain-based document registration for custom clearance
EP3841491B1 (en) 2020-06-08 2023-08-02 Alipay Labs (Singapore) Pte. Ltd. Blockchain-based smart contract pools
SG11202102402QA (en) 2020-06-08 2021-04-29 Alipay Labs Singapore Pte Ltd Blockchain-based import custom clearance data processing
SG11202102366SA (en) 2020-06-08 2021-04-29 Alipay Labs Singapore Pte Ltd User management of blockchain-based custom clearance service platform
WO2020169124A2 (en) 2020-06-08 2020-08-27 Alipay Labs (singapore) Pte. Ltd. Distributed storage of custom clearance data
DE102020004122A1 (de) 2020-07-08 2022-01-13 Giesecke+Devrient Gesellschaft mit beschränkter Haftung Bezahlsystem, münzregister, teilnehmereinheit, transaktionsregister, überwachungsregister und verfahren zum bezahlen mit elektronischen münzdatensätzen
US11601258B2 (en) 2020-10-08 2023-03-07 Enveil, Inc. Selector derived encryption systems and methods
WO2022104132A1 (en) * 2020-11-12 2022-05-19 University Of South Florida Systems and methods for energy efficient and useful blockchain proof of work
CN113627911A (zh) * 2021-09-03 2021-11-09 杭州复杂美科技有限公司 一种基于区块链匿名收发红包的方法、设备及储存介质
US12200129B2 (en) * 2021-12-23 2025-01-14 Visa International Service Association Zero-knowledge interaction processing system and method
US12401507B2 (en) * 2021-12-29 2025-08-26 International Business Machines Corporation Future asset reclamation via blockchain
US20250182109A1 (en) * 2023-12-05 2025-06-05 Ava Labs, Inc. Encrypted transfers in a distributed ledger
US20250209449A1 (en) * 2023-12-20 2025-06-26 Zkrypto Inc. Method of contracting reserves with single transaction in response to a plurality of contract requests
CN117726421B (zh) * 2024-02-07 2024-06-21 湖南三湘银行股份有限公司 一种应用于银行的权益管理方法

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3619486B2 (ja) * 2001-10-30 2005-02-09 日本電信電話株式会社 電子マッチング方法、その装置のプログラム及びその記録媒体
US7434726B2 (en) * 2006-05-15 2008-10-14 Pitney Bowes Inc. Method and system for postdating of financial transactions
JP5578754B2 (ja) 2007-01-22 2014-08-27 日本電信電話株式会社 暗号変換方法および装置、並びにプログラム
US20090327141A1 (en) * 2007-04-18 2009-12-31 Rabin Michael O Highly efficient secrecy-preserving proofs of correctness of computation
GB2491289A (en) * 2010-01-22 2012-11-28 Ibm Unlinkable priced oblivious transfer with rechargeable wallets
US8861716B2 (en) 2010-03-30 2014-10-14 International Business Machines Corporation Efficient homomorphic encryption scheme for bilinear forms
US20120317034A1 (en) * 2011-06-13 2012-12-13 Microsoft Corporation Transparent virtual currency using verifiable tokens
US10096008B2 (en) * 2012-09-10 2018-10-09 Mastercard International Incorporated Methods and systems for processing electronic disbursements
CN107408174B (zh) * 2015-01-30 2021-10-01 E·马伊姆 用于管理安全实体的连网承诺的系统和方法
WO2016200885A1 (en) * 2015-06-08 2016-12-15 Blockstream Corporation Cryptographically concealing amounts transacted on a ledger while preserving a network's ability to verify the transaction
US10454668B2 (en) * 2015-11-09 2019-10-22 Certsign Sa Fully homomorphic encryption from monoid algebras
US10791123B2 (en) * 2015-11-25 2020-09-29 Yaron Gvili Selectivity in privacy and verification with applications
US10713731B2 (en) * 2016-07-22 2020-07-14 Nec Corporation Method for secure ledger distribution and computer system using secure distributed ledger technology
US10333715B2 (en) * 2016-11-14 2019-06-25 International Business Machines Corporation Providing computation services with privacy
WO2018115567A1 (en) * 2016-12-19 2018-06-28 Nokia Technologies Oy Method and apparatus for private data transfer between parties
CN106910072A (zh) * 2017-02-15 2017-06-30 捷德（中国）信息科技有限公司 数字货币管理方法和系统
CN107240018A (zh) * 2017-07-25 2017-10-10 成都励睿德企业管理有限公司 一种用于支付区块链网络中交易费用的方法和系统
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
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
EP3718069B1 (en) * 2017-11-30 2024-04-17 Visa International Service Association Blockchain system for confidential and anonymous smart contracts
CN108335106A (zh) * 2018-01-24 2018-07-27 深圳壹账通智能科技有限公司 基于区块链的零知识多账本兑换转账方法、装置及存储介质
CN108377189B (zh) * 2018-05-09 2021-01-26 深圳壹账通智能科技有限公司 区块链上用户通信加密方法、装置、终端设备及存储介质
CN108632293B (zh) * 2018-05-16 2021-08-06 山东建筑大学 基于区块链技术的建筑设备物联网系统与方法
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
CN109584055B (zh) * 2018-09-20 2020-07-03 阿里巴巴集团控股有限公司 基于区块链的交易方法、装置和汇出方设备

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