WO2021009390A1 - Disposición de cadenas de bloques con una transacción restringida - Google Patents
Disposición de cadenas de bloques con una transacción restringida Download PDFInfo
- Publication number
- WO2021009390A1 WO2021009390A1 PCT/ES2019/070503 ES2019070503W WO2021009390A1 WO 2021009390 A1 WO2021009390 A1 WO 2021009390A1 ES 2019070503 W ES2019070503 W ES 2019070503W WO 2021009390 A1 WO2021009390 A1 WO 2021009390A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transaction
- nodes
- restricted
- node
- information transaction
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Classifications
-
- 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
- G06Q20/3678—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 e-cash details, e.g. blinded, divisible or detecting double spending
-
- 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
- G06Q20/02—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP]
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
-
- 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
- G06Q20/04—Payment circuits
- G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
- G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
- G06Q20/0658—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash e-cash managed locally
-
- 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
- G06Q20/383—Anonymous user system
-
- 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
- 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
- H04L9/0643—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
- H04L9/32—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
- H04L9/3255—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 group based signatures, e.g. ring or threshold 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
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
Definitions
- a participating node or blockchain node of the blockchain network refers to a natural or legal person that maintains, shares and operates with its own local copy of the blockchain; namely, ledger or ledger.
- the telecommunications network 14 may be a network such as a local area network, LAN, wired or wireless, wide area network, WAN, such as an intranet, an extranet or the Internet; or similar.
- the telecommunications network 14 facilitates the communications between the nodes 12, 13 of the chain block network 11.
- the message requesting the execution of the restricted transaction includes, in addition to the data of the proposed transaction, the metadata relating to the privacy context for which the restricted transaction is executed.
- the encrypted and marked data block of the block chain will be distributed by the validating nodes 13 of the block chain network and will comprise from 0 to N transactions and at least one information transaction t x '; namely, a block of data encrypted and marked as restricted. Participating nodes 12 in the privacy group of t x are further informed that t x is a transaction destined for that privacy group.
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Theoretical Computer Science (AREA)
- Finance (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- General Business, Economics & Management (AREA)
- Strategic Management (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Data Mining & Analysis (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Storage Device Security (AREA)
Abstract
Description
Claims
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201980040839.9A CN112654972B (zh) | 2019-07-18 | 2019-07-18 | 具有受限交易的区块链设置 |
| BR112020025811-3A BR112020025811A2 (pt) | 2019-07-18 | 2019-07-18 | disposição de cadeia de blocos com transação restrita |
| PCT/ES2019/070503 WO2021009390A1 (es) | 2019-07-18 | 2019-07-18 | Disposición de cadenas de bloques con una transacción restringida |
| PL19932269.4T PL4036744T3 (pl) | 2019-07-18 | 2019-07-18 | Układ łańcucha bloków (blockchain) z ograniczonymi transakcjami |
| ES19932269T ES2992115T3 (es) | 2019-07-18 | 2019-07-18 | Disposición de cadenas de bloques con una transacción restringida |
| EP19932269.4A EP4036744B1 (en) | 2019-07-18 | 2019-07-18 | Arrangement of blockchains with restricted transaction |
| JP2020571719A JP7410060B2 (ja) | 2019-07-18 | 2019-07-18 | 制限トランザクションを有するブロックチェーンシステム |
| US17/253,237 US20210166222A1 (en) | 2019-07-18 | 2019-07-18 | Arrangement of blockchains with a restricted transaction |
| CA3103884A CA3103884C (en) | 2019-07-18 | 2019-07-18 | BLOCKCHAIN STRUCTURE WITH LIMITED TRANSACTIONS |
| MX2020014099A MX2020014099A (es) | 2019-07-18 | 2019-07-18 | Disposicion de cadenas de bloques con una transaccion restringida. |
| IL279523A IL279523B2 (en) | 2019-07-18 | 2019-07-18 | Arrangement of blockchains with a restricted transaction |
| SG11202012781YA SG11202012781YA (en) | 2019-07-18 | 2019-07-18 | Arrangement of blockchains with a restricted transaction |
| ZA2020/07897A ZA202007897B (en) | 2019-07-18 | 2020-12-17 | Arrangement of blockchains with a restricted transaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2019/070503 WO2021009390A1 (es) | 2019-07-18 | 2019-07-18 | Disposición de cadenas de bloques con una transacción restringida |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021009390A1 true WO2021009390A1 (es) | 2021-01-21 |
Family
ID=74209701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2019/070503 Ceased WO2021009390A1 (es) | 2019-07-18 | 2019-07-18 | Disposición de cadenas de bloques con una transacción restringida |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20210166222A1 (es) |
| EP (1) | EP4036744B1 (es) |
| JP (1) | JP7410060B2 (es) |
| CN (1) | CN112654972B (es) |
| BR (1) | BR112020025811A2 (es) |
| CA (1) | CA3103884C (es) |
| ES (1) | ES2992115T3 (es) |
| IL (1) | IL279523B2 (es) |
| MX (1) | MX2020014099A (es) |
| PL (1) | PL4036744T3 (es) |
| SG (1) | SG11202012781YA (es) |
| WO (1) | WO2021009390A1 (es) |
| ZA (1) | ZA202007897B (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114760157A (zh) * | 2022-06-16 | 2022-07-15 | 天津市城市规划设计研究总院有限公司 | 城市规划领域区块链节点合法性验证方法及系统 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113542413B (zh) * | 2021-07-16 | 2024-01-05 | 北京数牍科技有限公司 | 基于可信存证的可监管隐私计算方法、系统及计算机设备 |
| CN113868695B (zh) * | 2021-08-20 | 2024-06-25 | 河南大学 | 一种群智感知数据聚合中基于区块链的可信隐私保护方法 |
| US11968307B2 (en) * | 2021-09-27 | 2024-04-23 | International Bisuness Machines Corporation | Private ledger partitions in blockchain networks |
| CN118364492B (zh) * | 2024-05-10 | 2025-07-22 | 山东大学 | 一种基于区块链与隐私计算的数据可信交易方法及系统 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180183768A1 (en) * | 2016-04-01 | 2018-06-28 | Jpmorgan Chase Bank, N.A. | Systems and methods for privacy in distributed ledger transactions |
| WO2018175504A1 (en) * | 2017-03-20 | 2018-09-27 | Wasserman Steven Victor | Blockchain digital currency: systems and methods for use in enterprise blockchain banking |
| CN109409888A (zh) * | 2018-11-13 | 2019-03-01 | 上海物融智能科技有限公司 | 交易处理方法、公有节点、交易相关节点和公有区块链 |
| CN109472601A (zh) * | 2018-11-21 | 2019-03-15 | 北京蓝石环球区块链科技有限公司 | 可监管隐私交易的区块链架构 |
| WO2019072299A2 (en) * | 2018-12-19 | 2019-04-18 | Alibaba Group Holding Limited | DATA INSULATION IN A BLOCK CHAIN NETWORK |
| CN110020549A (zh) * | 2019-02-19 | 2019-07-16 | 阿里巴巴集团控股有限公司 | 区块链中实现隐私保护的方法、节点和存储介质 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10891383B2 (en) * | 2015-02-11 | 2021-01-12 | British Telecommunications Public Limited Company | Validating computer resource usage |
| US9992028B2 (en) * | 2015-11-26 | 2018-06-05 | International Business Machines Corporation | System, method, and computer program product for privacy-preserving transaction validation mechanisms for smart contracts that are included in a ledger |
| WO2017170912A1 (ja) | 2016-03-31 | 2017-10-05 | 株式会社bitFlyer | トランザクション処理装置、トランザクション処理方法、及びそのためのプログラム |
| US10567168B2 (en) | 2017-11-16 | 2020-02-18 | International Business Machines Corporation | Blockchain transaction privacy enhancement through broadcast encryption |
| KR102034449B1 (ko) * | 2017-12-12 | 2019-10-21 | 주식회사 디지캡 | 콘텐츠 블록체인에서의 콘텐츠 암호키 관리 및 배포 방법 |
| US10268817B1 (en) * | 2018-10-05 | 2019-04-23 | Capital One Services, Llc | Methods, mediums, and systems for establishing and using security questions |
| CN110291756B (zh) | 2018-11-07 | 2023-07-14 | 创新先进技术有限公司 | 在区块链机密交易中恢复加密交易信息 |
| CN109687965B (zh) * | 2019-02-18 | 2021-09-21 | 哈尔滨工业大学(深圳) | 一种保护网络中用户身份信息的实名认证方法 |
| CN109756582B (zh) * | 2019-03-15 | 2022-08-12 | 腾讯科技(深圳)有限公司 | 区块链网络中的信息记录方法、装置、节点及存储介质 |
| KR102227685B1 (ko) | 2019-03-29 | 2021-03-16 | 어드밴스드 뉴 테크놀로지스 씨오., 엘티디. | 블록 체인 네트워크에서 민감 데이터 요소를 관리하는 방법 |
-
2019
- 2019-07-18 CN CN201980040839.9A patent/CN112654972B/zh active Active
- 2019-07-18 EP EP19932269.4A patent/EP4036744B1/en active Active
- 2019-07-18 MX MX2020014099A patent/MX2020014099A/es unknown
- 2019-07-18 SG SG11202012781YA patent/SG11202012781YA/en unknown
- 2019-07-18 CA CA3103884A patent/CA3103884C/en active Active
- 2019-07-18 PL PL19932269.4T patent/PL4036744T3/pl unknown
- 2019-07-18 ES ES19932269T patent/ES2992115T3/es active Active
- 2019-07-18 WO PCT/ES2019/070503 patent/WO2021009390A1/es not_active Ceased
- 2019-07-18 IL IL279523A patent/IL279523B2/en unknown
- 2019-07-18 JP JP2020571719A patent/JP7410060B2/ja active Active
- 2019-07-18 US US17/253,237 patent/US20210166222A1/en active Pending
- 2019-07-18 BR BR112020025811-3A patent/BR112020025811A2/pt unknown
-
2020
- 2020-12-17 ZA ZA2020/07897A patent/ZA202007897B/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180183768A1 (en) * | 2016-04-01 | 2018-06-28 | Jpmorgan Chase Bank, N.A. | Systems and methods for privacy in distributed ledger transactions |
| WO2018175504A1 (en) * | 2017-03-20 | 2018-09-27 | Wasserman Steven Victor | Blockchain digital currency: systems and methods for use in enterprise blockchain banking |
| CN109409888A (zh) * | 2018-11-13 | 2019-03-01 | 上海物融智能科技有限公司 | 交易处理方法、公有节点、交易相关节点和公有区块链 |
| CN109472601A (zh) * | 2018-11-21 | 2019-03-15 | 北京蓝石环球区块链科技有限公司 | 可监管隐私交易的区块链架构 |
| WO2019072299A2 (en) * | 2018-12-19 | 2019-04-18 | Alibaba Group Holding Limited | DATA INSULATION IN A BLOCK CHAIN NETWORK |
| CN110020549A (zh) * | 2019-02-19 | 2019-07-16 | 阿里巴巴集团控股有限公司 | 区块链中实现隐私保护的方法、节点和存储介质 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4036744A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114760157A (zh) * | 2022-06-16 | 2022-07-15 | 天津市城市规划设计研究总院有限公司 | 城市规划领域区块链节点合法性验证方法及系统 |
| CN114760157B (zh) * | 2022-06-16 | 2022-09-16 | 天津市城市规划设计研究总院有限公司 | 城市规划领域区块链节点合法性验证方法及系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022548185A (ja) | 2022-11-17 |
| BR112020025811A2 (pt) | 2021-03-23 |
| EP4036744B1 (en) | 2024-07-10 |
| IL279523B1 (en) | 2024-08-01 |
| CA3103884A1 (en) | 2021-01-18 |
| EP4036744A4 (en) | 2022-11-30 |
| EP4036744C0 (en) | 2024-07-10 |
| EP4036744A1 (en) | 2022-08-03 |
| IL279523A (en) | 2021-03-25 |
| PL4036744T3 (pl) | 2024-11-18 |
| CN112654972B (zh) | 2025-10-03 |
| ZA202007897B (en) | 2022-04-28 |
| JP7410060B2 (ja) | 2024-01-09 |
| ES2992115T3 (es) | 2024-12-09 |
| IL279523B2 (en) | 2024-12-01 |
| US20210166222A1 (en) | 2021-06-03 |
| SG11202012781YA (en) | 2021-07-29 |
| MX2020014099A (es) | 2021-04-13 |
| CN112654972A (zh) | 2021-04-13 |
| CA3103884C (en) | 2025-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2992115T3 (es) | Disposición de cadenas de bloques con una transacción restringida | |
| US10673626B2 (en) | Threshold secret share authentication proof and secure blockchain voting with hardware security modules | |
| US11038672B2 (en) | Secure and distributed management of a proxy re-encryption key ledger | |
| JP7585315B2 (ja) | コールドウォレットを用いたデジタルシグニチャ生成 | |
| ES2278047T3 (es) | Sistema y procedimiento para procesar un secreto compartido. | |
| CN111327419B (zh) | 基于秘密共享的抗量子计算区块链的方法及系统 | |
| CN101515319B (zh) | 密钥处理方法、密钥密码学服务系统和密钥协商方法 | |
| CN111859446A (zh) | 一种农产品溯源信息共享-隐私保护的方法及系统 | |
| AU2003254377A1 (en) | Methods and systems for providing a secure data distribution via public networks | |
| KR102546762B1 (ko) | 블룸 필터를 이용한 블록체인에서의 다중 서명 지갑 시스템 | |
| CN112131601B (zh) | 基于环签名和代理重加密的区块链隐私保护方法和系统 | |
| ES2634024A1 (es) | Método seguro para compartir datos y controlar el acceso a los mismos en la nube | |
| JP2022548185A5 (es) | ||
| CN112540957A (zh) | 基于混合区块链的档案安全存储和共享系统及实现方法 | |
| US20210105136A1 (en) | Method for securing a data exchange in a distributed infrastructure | |
| US20240114025A1 (en) | Modification of device behavior for use in secure networking | |
| Chandel et al. | Design and Implementation of a Secure Blockchain-based Health Information System | |
| CN115865320B (zh) | 一种基于区块链的安全服务管理方法及系统 | |
| CN116049853A (zh) | 一种基于lsss和区块链的访问控制方法 | |
| ES2989067T3 (es) | Procedimientos y disposiciones para habilitar comunicaciones digitales seguras dentro de un grupo | |
| CN116155483A (zh) | 区块链签名机安全设计方法及签名机 | |
| CN109784917B (zh) | 基于对称密钥池的抗量子计算区块链保密交易系统和方法 | |
| Verma et al. | A hybrid two layer attribute based encryption for privacy preserving in public cloud | |
| Cavalcante et al. | Confidentialchain: Enhancing the Security of a Notarization System Based on Blockchain | |
| HK40044880A (en) | Arrangement of blockchains with a restricted transaction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENP | Entry into the national phase |
Ref document number: 2020571719 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202047054950 Country of ref document: IN |
|
| ENP | Entry into the national phase |
Ref document number: 3103884 Country of ref document: CA |
|
| REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112020025811 Country of ref document: BR |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19932269 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 112020025811 Country of ref document: BR Kind code of ref document: A2 Effective date: 20201217 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2019932269 Country of ref document: EP Effective date: 20220218 |
|
| WWP | Wipo information: published in national office |
Ref document number: 202047054950 Country of ref document: IN |
|
| WWG | Wipo information: grant in national office |
Ref document number: 201980040839.9 Country of ref document: CN |