CN116582272A - Method for verifying Fabric complex endorsement policy in cross-chain - Google Patents
Method for verifying Fabric complex endorsement policy in cross-chain Download PDFInfo
- Publication number
- CN116582272A CN116582272A CN202310473948.8A CN202310473948A CN116582272A CN 116582272 A CN116582272 A CN 116582272A CN 202310473948 A CN202310473948 A CN 202310473948A CN 116582272 A CN116582272 A CN 116582272A
- Authority
- CN
- China
- Prior art keywords
- chain
- endorsement policy
- endorsement
- expression
- fabric
- 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.)
- Pending
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012795 verification Methods 0.000 claims abstract description 29
- 230000014509 gene expression Effects 0.000 claims description 28
- 238000004458 analytical method Methods 0.000 claims description 8
- 238000013507 mapping Methods 0.000 claims description 4
- 230000008520 organization Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000010200 validation analysis Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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
- H04L9/32—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
- 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
- H04L63/101—Access control lists [ACL]
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The application discloses a method for verifying a Fabric complex endorsement policy in a cross-chain, wherein a Fabric blockchain registers an MSP list, a chain code ID and an endorsement policy description in the cross-chain network, a generated cross-chain transaction is transmitted to a relay chain, the relay chain analyzes a transaction execution result and an endorsement node signature set to generate an endorsement policy interpreter, the transaction execution result is confirmed to be consistent with the chain code ID registered in the cross-chain network, verification fails if the transaction execution result is inconsistent with the chain code ID, and finally the endorsement policy interpreter verifies the signature set. The application can verify the user-defined complex endorsement strategy; the method is friendly to users of the Fabric network, does not need to write verification strategies, and only needs to submit endorsement strategy descriptions; the malicious attack of the user through different chain codes can be prevented.
Description
Technical Field
The application belongs to the technical field of blockchains, and particularly relates to a method for verifying a Fabric complex endorsement policy in a cross-chain.
Background
The cross-chain technology refers to cross-chain interoperation of the ledger by connecting relatively independent blockchain systems. In terms of asset exchange, some blockchains are in fact still isolated from each other, the interworking barriers between the various blockchain applications are very high at present, and verification of transactions at asset exchange is a very significant challenge.
The verification of the cross-chain transaction generated by the Fabric block chain is particularly a difficulty, and the Fabric block chain has a specified endorsement node for endorsing the transaction, wherein the Fabric endorsement node is a set formed by a plurality of nodes, and a user can perform custom endorsement policy formulation on the set, such as prescribing which node or some of several nodes must endorse. For example, if there are endorsement nodes a, B, C, D in the Fabric blockchain, the user may define that if any node endorse is successful, the transaction endorse is successful, it may also be specified that there must be two nodes a, B that endorse successfully to make the transaction endorse successful. However, while such customization provides the flexibility of blockchain requirements for endorsements, the writing of validation rules for endorsement information for Fabric-thrown transactions in cross-chain transactions provides a significant hurdle, if a corresponding validation rule is written for each policy, it is a little overhead, both in terms of workload and complexity.
Typical cross-chain verification cannot verify complex endorsement policies, but only simple endorsement policies, such as transactions signed by one node or signed by a fixed number of nodes. Generally, for a default Fabric network, an endorsement policy can consider that a transaction is valid as long as any node in an endorsement node pool endorses the transaction, so that a simple endorsement policy only needs to store certificates of all endorsement nodes into a cross-chain network, and only needs to traverse the certificates for signature verification during verification. However, for a complex endorsement policy, the complex endorsement policy cannot be achieved through simple traversal, and the cross-chain requirement of the Fabric complex endorsement policy in actual production cannot be completely met.
Disclosure of Invention
The application aims to provide a method for verifying a Fabric complex endorsement policy in a cross-chain manner aiming at the defects of the prior art.
The aim of the application is realized by the following technical scheme: a method for verifying a Fabric complex endorsement policy in a cross-chain comprises the following steps:
(1) The Fabric blockchain registers all MSP lists, the chain code IDs and expressions of endorsement policies in the blockchain network to the cross-chain network;
(2) When the Fabric block chain generates a cross-chain transaction, transmitting the transaction information which is already uplink to a relay chain of a cross-chain network, and carrying out endorsement verification on the transaction information by the relay chain, wherein the method comprises the following substeps:
(2.1) the relay chain analyzes the execution result of the transaction proposal and the signature set of the endorsement node on the execution result of the transaction proposal from the transaction information;
(2.2) firstly, carrying out semantic analysis on the expression of the endorsement policy registered in the cross-link network by the Fabric blockchain in the step (1) to split the expression into a logic grammar tree, and then mapping the logic grammar tree with the MSP list transmitted into the cross-link network in the step (1) to generate an endorsement policy interpreter;
(2.3) the relay chain compares the chain code ID in the execution result of the transaction proposal obtained in the step (2.1) with the chain code ID registered in the cross-chain network by the Fabric in the step (1), confirms that the chain code ID is consistent, and if the chain code ID is inconsistent, the verification fails;
(2.4) putting the signature set of the executing result of the transaction proposal by the endorsement node obtained in the step (2.1) into an endorsement policy interpreter generated in the step (2.2), checking whether the number of the signature sets accords with the expression of the endorsement policy transmitted in the step (1), judging whether the logic of the signature sets accords with a logic grammar tree, extracting a certificate required by the endorsement policy in an MSP list hooked with the logic grammar tree in the step (2.2), and checking the signature sets; if the signature of the signature set meets the requirements of the endorsement policy interpreter, and the signature verification passes, the verification passes, otherwise, the verification fails.
Further, the step (2.2) specifically comprises: and (3) carrying out semantic analysis on the expression of the endorsement policy registered in the cross-link network by the Fabric blockchain in the step (1) by adopting an abstract syntax tree, converting the expression into a tree-like data structure to obtain a logic syntax tree, and then mapping the logic syntax tree with the MSP list transmitted into the cross-link network in the step (1) to generate an endorsement policy interpreter.
Further, when the endorsement policy in the Fabric blockchain is updated, the expressions of the endorsement policy are synchronously updated into the cross-chain network, and a new endorsement policy interpreter is generated at each transaction verification.
The beneficial effects of the application are as follows: the Fabric blockchain registers an MSP list, a chain code ID and an endorsement policy description into a cross-chain network, transmits generated cross-chain transactions to a relay chain, then the relay chain analyzes a transaction execution result and an endorsement node signature set to generate an endorsement policy interpreter, confirms that the transaction execution result is consistent with the chain code ID registered in the cross-chain network, and finally verifies the signature set by the endorsement policy interpreter; the application has the following characteristics:
1. the application can verify the user-defined complex endorsement strategy;
2. the method is friendly to users of the Fabric network, does not need to write verification strategies, and only needs to submit endorsement strategy descriptions;
3. the application can prevent users from carrying out malicious attack through different chain codes.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings that are required to be used in the embodiments or the description of the prior art. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a registration phase of Fabric registration to a cross-link network;
FIG. 2 is a schematic diagram of a process for verifying a complex verification rule.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
The application discloses a method for verifying a Fabric complex endorsement policy in a cross-chain manner, which comprises the following steps:
(1) As shown in FIG. 1, during the registration phase of the Fabric blockchain registering to the cross-chain network, the Fabric blockchain registers the MSP list of all organizations in the blockchain network, the chain code ID used to send the cross-chain transaction, and the endorsement policy description together into the cross-chain network.
The MSP list of the Fabric needs to contain MSP lists of all institutions in the Fabric blockchain network, and when an endorsement policy is generated, the MSP lists of a plurality of institutions need to be combined, rather than only the MSP list of a single institution is used as an input source of the endorsement policy.
(2) As shown in fig. 2, when the Fabric blockchain generates a cross-chain transaction, the transaction information which is already uplink is transmitted to a relay chain of the cross-chain network, and the relay chain performs endorsement verification on the transaction information, which comprises the following substeps:
and (2.1) analyzing the execution result of the transaction proposal and the signature set of the endorsement node on the execution result of the transaction proposal by the relay chain from the transaction information.
(2.2) compiling the endorsement policy description of the Fabric blockchain registered in the cross-chain network in the step (1), and generating an endorsement policy interpreter by combining the MSP list registered in the cross-chain network, wherein the endorsement policy interpreter specifically comprises: the description of the endorsement policy is subjected to semantic analysis and split into a logic grammar tree, for example, an abstract grammar tree (Abstract Syntax Tree, AST) is used for converting the expression of the endorsement policy into a tree-shaped data structure, and then the logic grammar tree and the MSP list which is transmitted into the cross-chain network in the step (1) are hooked.
It should be noted that when the endorsement policy in the Fabric blockchain is updated, the endorsement policy is synchronously updated to the cross-chain network, and the verification method in the application generates a new endorsement policy interpreter at each transaction verification, instead of permanently generating a cached interpreter for a specific Fabric blockchain. The update of the endorsement policy does not affect the update of the verification method.
And (2.3) comparing the chain code ID in the execution result of the transaction proposal with the chain code ID of the Fabric registered in the cross-chain network in the step (1) by the relay chain, and confirming that the chain code IDs are consistent, and if the chain code IDs are inconsistent, failing to verify.
In order to prevent malicious attacks, when verifying transactions sent by Fabric, the ID of a chain code needs to be verified, so that malicious attackers are prevented from constructing false transactions through different chain codes to achieve the purpose of malicious transactions, when analyzing transaction information transmitted into a cross-chain network, the ID of the chain code needs to be extracted first, the extracted ID is compared with the ID of the chain code registered in the cross-chain network in advance, only the same ID can indicate that the transactions are indeed generated by the corresponding chain code, and MSP identity authentication can be continued.
(2.4) putting the signature set of the executing result of the transaction proposal by the endorsement node obtained in the step (2.1) into an endorsement policy interpreter generated in the step (2.2), and verifying the signature set by the endorsement policy interpreter through a logic grammar tree obtained in the step (2.2), wherein the method specifically comprises the following steps: checking whether the number of the signature sets accords with the endorsement policy description transmitted in the step (1), judging whether the logic of the signature sets accords with a logic grammar tree, extracting certificates required by the endorsement policy in an MSP list hooked with the logic grammar tree in the step (2.2), and checking signature of the endorsement node on the signature sets of the execution results of the transaction proposal; if the signature of the signature set meets the requirements of the endorsement policy interpreter, and the signature verification passes, the verification passes, otherwise, the verification fails.
One example may be used to detail a specific verification process that requires submitting the MSP lists of organization 1, organization 2, and organization 3 to the cross-chain network at the stage of registration of the Fabric network to the cross-chain network after organization 1 (containing member A, B), organization 2 (containing member C, D), and organization 3 (containing member E, F) have formed the Fabric blockchain network. Meanwhile, if the Fabric blockchain specifies an endorsement policy such as an And (org1.a, or (org2.c, org3.e)), the policy expression needs to be registered together with the cross-chain network, and the chain code ID involved in the cross-chain transaction needs to be registered. After registration, if the Fabric network generates a cross-link transaction, the cross-link transaction is submitted to the cross-link network, transaction information is required to be verified by the cross-link network, a grammar tree is firstly generated according to the above endorsement policy expression, leaf nodes of the grammar tree are member A, member C and member E, and at the moment, mapping is required to be established between the member of the leaf node and the certificate of the member in the MSP list. An endorsement policy interpreter is generated by this syntax tree that generates the map. This allows the signature set of the endorsement node in the transaction information to be verified by the interpreter.
Claims (10)
1.A method for verifying a Fabric complex endorsement policy in a cross-chain, applied to a relay chain, wherein the relay chain is a blockchain used for receiving transaction information of a cross-chain transaction in a cross-chain network, and the method is characterized by comprising the following steps:
when the transaction information sent by the Fabric block chain is received, analyzing the transaction information to obtain an execution result of a transaction proposal corresponding to the transaction information and a signature set corresponding to the execution result;
if the first chain code ID is consistent with the second chain code ID in the execution result, acquiring a first expression pre-registered by the Fabric block chain; the first chain code ID and the first expression are pre-registered in the relay chain by the Fabric blockchain; the first expression is used for expressing an endorsement policy corresponding to the Fabric block chain;
performing semantic analysis on the first expression to generate a corresponding logic grammar tree, and generating a first endorsement policy interpreter based on the logic grammar tree and an MSP list corresponding to the Fabric blockchain; the MSP list is a list which is registered in the relay chain in advance by the Fabric blockchain and used for transaction verification;
judging whether the signature set accords with the logic grammar tree or not based on the first endorsement policy interpreter, and judging whether the signature set meets a certificate corresponding to the logic grammar tree or not; the certificate corresponding to the logical grammar tree is a certificate required by an endorsement policy extracted from the MSP list corresponding to the logical grammar tree by the first endorsement policy interpreter;
and if the signature set accords with the logic grammar tree and the signature set meets the certificate corresponding to the logic grammar tree, judging that the transaction information verification is successful.
2. The method of claim 1, wherein the performing semantic analysis on the expression to generate a corresponding logical syntax tree and generating a first endorsement policy interpreter based on the logical syntax tree and a corresponding MSP list of the Fabric blockchain comprises:
converting the expression into a tree-like data structure based on a preset abstract syntax tree, and generating the logic syntax tree; the abstract syntax tree is used for performing syntax analysis on the expression;
mapping the logical grammar tree with the MSP list and generating the first endorsement policy interpreter.
3. The method of claim 1, wherein the performing semantic analysis on the expression to generate a corresponding logical syntax tree and generating a first endorsement policy interpreter based on the logical syntax tree and a corresponding MSP list of the Fabric blockchain comprises:
receiving a second expression uploaded by the Fabric block chain; the second expression is sent by the Fabric block chain when updating the endorsement policy;
and generating a corresponding second endorsement policy interpreter based on the second expression, and judging whether the signature set accords with the logic grammar tree based on the second endorsement policy interpreter.
4. The method according to claim 1, wherein after the determining, based on the first endorsement policy interpreter, whether the signature set conforms to the logical syntax tree and whether the signature set satisfies a certificate corresponding to the logical syntax tree, the method comprises:
and if the signature set does not accord with the logic grammar tree and/or the signature set does not meet the certificate corresponding to the logic grammar tree, judging that the transaction information verification fails.
5. The method of claim 1, wherein the MSP list comprises an MSP list of all institutions in the Fabric blockchain; the endorsement policy represented by the first expression is composed of a combination of MSP lists of a plurality of institutions in the Fabric blockchain.
6. The method of claim 1, wherein the first endorsement policy interpreter is generated by the relay chain after each receipt of the transaction information.
7. A method for verifying a Fabric complex endorsement policy in a cross-chain, applied to a Fabric blockchain, comprising:
transmitting an MSP list, a first chain code ID and a first expression to a relay chain; the first expression is used for expressing an endorsement policy corresponding to the Fabric block chain;
when a cross-link transaction is generated, transaction information corresponding to the cross-link transaction is sent to a relay link, so that the transaction information is verified on the relay link.
8. The method of claim 7, wherein after the transmitting the MSP list, the first chain code ID, and the first expression to the relay chain, comprising:
and when the updated endorsement policy is received, sending a second expression related to the updated endorsement policy to the relay chain, so as to generate a second endorsement policy interpreter corresponding to the second expression on the relay chain.
9. The method of claim 7, wherein after the transmitting the transaction information corresponding to the cross-chain transaction to the relay chain, the method comprises:
receiving a verification error returned by the relay chain; the verification error is returned when the relay chain judges that the first chain code ID and the second chain code ID are inconsistent based on an endorsement logic interpreter; and the second chain code ID is obtained by analyzing the relay chain based on the transaction information.
10. The method according to claim 9, wherein the verification error is returned by the relay chain when the relay chain determines that a signature set does not conform to a logical syntax tree and/or the signature set does not satisfy a certificate corresponding to the logical syntax tree based on the endorsement logic interpreter; the signature set is obtained by analyzing the relay chain based on the transaction information; the logic grammar tree is generated by carrying out semantic analysis on the first expression for the relay chain; the endorsement logic interpreter generates for the relay chain based on the logic syntax tree and the MSP list.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310473948.8A CN116582272A (en) | 2020-04-21 | 2020-04-21 | Method for verifying Fabric complex endorsement policy in cross-chain |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310473948.8A CN116582272A (en) | 2020-04-21 | 2020-04-21 | Method for verifying Fabric complex endorsement policy in cross-chain |
| CN202010316330.7A CN111563744B (en) | 2020-04-21 | 2020-04-21 | Method for verifying Fabric complex endorsement policy in cross-chain |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010316330.7A Division CN111563744B (en) | 2020-04-21 | 2020-04-21 | Method for verifying Fabric complex endorsement policy in cross-chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116582272A true CN116582272A (en) | 2023-08-11 |
Family
ID=72071896
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010316330.7A Active CN111563744B (en) | 2020-04-21 | 2020-04-21 | Method for verifying Fabric complex endorsement policy in cross-chain |
| CN202310473948.8A Pending CN116582272A (en) | 2020-04-21 | 2020-04-21 | Method for verifying Fabric complex endorsement policy in cross-chain |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010316330.7A Active CN111563744B (en) | 2020-04-21 | 2020-04-21 | Method for verifying Fabric complex endorsement policy in cross-chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN111563744B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398853B (en) * | 2020-11-16 | 2023-04-18 | 东软集团股份有限公司 | Method, device and system for realizing alliance chain cross-chain communication |
| CN112508563A (en) * | 2020-12-01 | 2021-03-16 | 浙商银行股份有限公司 | Cross-chain transaction credibility verification method and device and computer equipment |
| CN112783877A (en) * | 2020-12-30 | 2021-05-11 | 北京百度网讯科技有限公司 | Cross-link data verification method, device, equipment and storage medium |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017057323A (en) * | 2015-09-17 | 2017-03-23 | Ｊｘエネルギー株式会社 | Thermoplastic elastomer composition and manufacturing method therefor |
| CN109214818B (en) * | 2017-06-30 | 2021-06-15 | 华为技术有限公司 | Cross-chain transaction method and device |
| CN108269190A (en) * | 2018-01-17 | 2018-07-10 | 深圳四方精创资讯股份有限公司 | Across chain method and its system based on across chain relaying platform |
| CN108256864B (en) * | 2018-02-13 | 2019-06-07 | 中链科技有限公司 | Foundation across chain alliance and communication means, system between a kind of block chain |
| CN108288159A (en) * | 2018-03-07 | 2018-07-17 | 物数（上海）信息科技有限公司 | Across chain method of commerce, system, equipment and storage medium based on multi-tiling chain |
| US11429967B2 (en) * | 2018-03-13 | 2022-08-30 | Nec Corporation | Mechanism for efficient validation of finality proof in lightweight distributed ledger clients |
| CN108416578A (en) * | 2018-03-14 | 2018-08-17 | 郑杰骞 | A kind of block catenary system and data processing method |
| US11194837B2 (en) * | 2018-05-01 | 2021-12-07 | International Business Machines Corporation | Blockchain implementing cross-chain transactions |
| CN109146490B (en) * | 2018-10-11 | 2023-04-07 | 北京京东尚科信息技术有限公司 | Block generation method, device and system |
| CN110266655B (en) * | 2019-05-30 | 2021-11-12 | 中国工商银行股份有限公司 | Cross-chain interconnection method, device and system based on block chain |
| CN110751475A (en) * | 2019-10-24 | 2020-02-04 | 杭州趣链科技有限公司 | Cross-chain method, system, equipment and storage medium for blockchain transaction |
| CN110766408A (en) * | 2019-10-24 | 2020-02-07 | 杭州趣链科技有限公司 | Cross-chain transaction verification method, engine, equipment and storage medium for heterogeneous block chain |
| CN110855565B (en) * | 2019-11-22 | 2021-07-20 | 广州大学 | Verifiable inter-domain route verification method based on block chain |
-
2020
- 2020-04-21 CN CN202010316330.7A patent/CN111563744B/en active Active
- 2020-04-21 CN CN202310473948.8A patent/CN116582272A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN111563744A (en) | 2020-08-21 |
| CN111563744B (en) | 2023-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111563744B (en) | Method for verifying Fabric complex endorsement policy in cross-chain | |
| US11790370B2 (en) | Techniques for expediting processing of blockchain transactions | |
| CN111010376B (en) | Master-slave chain-based Internet of things authentication system and method | |
| KR101849917B1 (en) | Method for providing certificate service based on smart contract and server using the same | |
| CN112508566B (en) | Cross-link privacy transaction method and device based on alliance links | |
| CN108881187A (en) | A kind of across chain data transferring method and equipment suitable for permitting chain scene | |
| CN110226165A (en) | Pass through updatable data structure detection electronic penetration person | |
| CN108111314A (en) | The generation of digital certificate and method of calibration and equipment | |
| CN106850201B (en) | Intelligent terminal multiple-factor authentication method, intelligent terminal, certificate server and system | |
| CN113992360B (en) | Federal learning method and equipment based on block chain crossing | |
| CN108667780A (en) | A kind of identity authentication method, system and server and terminal | |
| CN113746858B (en) | Cross-chain communication method based on verifiable random function | |
| CN104065481A (en) | Method And Device For Certificate Generation And Revocation With Privacy Preservation | |
| CN112508563A (en) | Cross-chain transaction credibility verification method and device and computer equipment | |
| US20190385183A1 (en) | Method for automatically providing cryptocurrency to recommender using propagation on sns | |
| US9906519B1 (en) | Contextual and time sensitive out of band transactional signing | |
| CN108093000A (en) | A kind of information query method based on eID authentications, apparatus and system | |
| KR20090095940A (en) | System and Method for Non-faced Financial Transaction by Using Verification of Transaction Step and Program Recording Medium | |
| CN113037505B (en) | Method and system for realizing trusted Web application | |
| CN105812223B (en) | campus smart card information processing method | |
| Srinivas et al. | Lightweight security protocols for blockchain technology | |
| CN106878378B (en) | Scatter processing method in network communication management | |
| CN114936853A (en) | Chain transaction protocol and transaction authentication method based on trusted execution environment | |
| US11379867B2 (en) | Method for automatically providing cryptocurrency to recommender using propagation on SNS | |
| US20220301376A1 (en) | Method and System for Deployment of Authentication Seal in Secure Digital Voting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |