Digital Certificate Management of Blockchain

Digital Certificate Management of Blockchain

Key Glossary

Term Definitions Blockchain is a distributed ledger that combines data blocks in a sequential manner in chronological order and is cryptographically guaranteed to be tamper-proof and unforgeable. Consortium chain refers to a blockchain whose consensus process is controlled by pre-selected node devices. Consensus Mechanism is a mathematical algorithm that enables different nodes in a blockchain system to establish trust and obtain rights and interests. Smart Contract is a computer protocol designed to disseminate, verify or execute contracts in an information-based manner. Each node in the blockchain system automatically executes a contract program according to specific conditions. Public Key is the public part of a key pair, usually used to encrypt data, verify digital signatures, etc. Private Key is the private part of a key pair, used to decrypt data encrypted by a public key and generate digital signatures. Digital Certificate is an electronic document used to prove the validity of a digital identity, similar to an electronic ID card. Certificate information is used to describe the information of a digital certificate, including the digital certificate number, validity period, public key, etc. CA (Certificate Authority) is an authority responsible for issuing and managing digital certificates. RA (Registration Authority) is an authority responsible for verifying user identities and assisting CA in applying for and approving digital certificates. CRL (Certification Revocation List) is a list of expired digital certificates. OCSP (Online Certificate Status Protocol) is a protocol for real-time query of digital certificate status.

Short answer questions

What is blockchain-based digital certificate management? What problem does it solve?

How does the digital certificate management method proposed in this patent achieve transparency of issuance records?

In this patent, how do regulators and auditing agencies use blockchain for supervision?

Compared with traditional CRL and OCSP methods, what are the advantages of the certificate verification method proposed in this patent?

How is the digital certificate freezing and thawing mechanism proposed in this patent implemented?

What is the difference between freezing and revoking a digital certificate?

How can users query digital certificates under their own name?

In this patent, what methods can be used to verify user information?

What information of a digital certificate will be stored in the blockchain?

How does the digital certificate management method proposed in this patent ensure that the status information is authentic and reliable?

Answers to short-answer questions

Blockchain-based digital certificate management refers to a method of using blockchain technology to store and manage digital certificates. It solves the problems of opaque issuance records, easy tampering, and low query efficiency in traditional digital certificate management methods.

This patent stores the issuance records of digital certificates on the blockchain and maintains them jointly by all nodes, ensuring the immutability and transparency of the data, thereby achieving transparency of issuance records.

Regulatory agencies and auditing agencies can join the system as nodes of the blockchain system to obtain the issuance and use of digital certificates in real time, thereby achieving effective supervision of CA agencies and digital certificates.

The certificate verification method proposed in this patent can directly obtain the latest certificate status information from the blockchain without downloading CRL files or querying OCSP servers online, which improves verification efficiency and reduces verification costs.

This patent generates a block containing frozen or thawed status information and adds it to the blockchain to update the status of the digital certificate, thereby realizing a freezing and thawing mechanism.

After being frozen, a digital certificate can be thawed and continued to be used, while a digital certificate that has been cancelled cannot be restored.

Users can send a query request to the node device and provide user information. The node device will query and return the corresponding certificate information in the blockchain.

User information verification can be done in a variety of ways, such as phone number verification, identity document verification, etc.

The digital certificate information stored in the blockchain includes certificate number, validity period, public key, issuing authority information, status information, etc.

This patent ensures the immutability and reliability of data by storing the status information of digital certificates in the blockchain and maintaining it by all nodes, thereby ensuring the authenticity and reliability of the status information.

Essay question

Please analyze in detail the advantages and disadvantages of the blockchain-based digital certificate management system compared with the traditional digital certificate management system.

In practical applications, how to ensure the security of the blockchain-based digital certificate management system? Please analyze it in combination with specific technical means.

Please explore the application prospects of blockchain-based digital certificate management technology in the fields of Internet of Things, e-government, etc.

Please analyze what measures can be taken by the digital certificate management method proposed in this patent to achieve scalability and performance optimization.

In combination with the current development trend in the field of digital certificate management, please explore the challenges and opportunities that the technical solution proposed in this patent may face in the future.