1. Introduction Blockchain technology disrupts various industries by providing secure, transparent and decentralized solutions. However, the rise of quantum computing poses a unique threat to the cryptographic foundations that underpin blockchain security. This article will delve into the technical complexities of these quantum threats, revealing the mathematical vulnerabilities that require attention. 2. Quantum Leap in […]
Tag: blockchain
Blockchain application development guide in Java language
Blockchain is a decentralized, tamper-proof distributed ledger technology that has received widespread attention in recent years. In the Java language, we can take advantage of its powerful ecosystem and rich tools to develop blockchain applications. This article will introduce the basic concepts of blockchain application development in Java language and provide corresponding source code examples. […]
Blockchain-FISCO BCOS Python SDK use
1. Use of console -Download the sdk project git clone https://github.com/FISCO-BCOS/python-sdk Install dependencies cd python-sdk pip install -r requirements.txt #If the network is unavailable, you can change the domestic server pip install -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple –trusted-host mirrors.aliyun.com Create user python-sdk$ python3 console.py newaccount larry larry123 INFO >> user input : [‘newaccount’, ‘larry’, ‘larry123’] starting […]
Use blockchain ideas to protect consumer information
Author: Zen and the Art of Computer Programming 1. Introduction With the rapid development of the Internet, traditional Internet service providers and portals have gradually become new media platforms, and have launched their own business models to attract the attention of a large number of users. But on the other hand, more and more people […]
Use blockchain ideas to protect consumer information
Author: Zen and the Art of Computer Programming 1. Introduction With the rapid development of the Internet, traditional Internet service providers and portals have gradually become new media platforms, and have launched their own business models to attract the attention of a large number of users. But on the other hand, more and more people […]
Build a blockchain system from scratch
Author: Zen and the Art of Computer Programming 1. Introduction Blockchain is a distributed database structure that records data in an asymmetric network. All data is hashed to obtain a unique identifier – a block, which is stored in the blockchain. After that, other nodes can verify, add new blocks and update data in the […]
[SpringBoot] SpringBoot implements the steps and code of basic blockchain
Here are the steps to implement basic blockchain code in Spring Boot: Create a Block class, which represents a block and contains a block header and a block body. The block header includes the version number, timestamp, the hash value of the previous block and the hash value of the current block. The block body […]
[Use go to develop blockchain] Obtain on-chain data (04)
In the previous article, we completed the operation of connecting Go to the blockchain. In this chapter, we will complete the function development of obtaining data on the chain and persisting it to the database. Articles in this series 1. [Use go to develop blockchain] Obtain on-chain data (01) 2. [Use go to develop blockchain] […]
Implementation of the Ethereum blockchain ERC-721 protocol (NFT token standard)
1. What is the ERC-721 standard ERC-721 is a standard for NFT (non-fungible tokens) on the Ethereum blockchain. It is a template or format that other developers follow to create unique tokens that represent digital assets, and Each ERC-721 token is unique. Using a unified standard can make the contract code simpler and more reusable. […]
Original | Application of Graph Neural Network in Blockchain Transaction Data Analysis Research
Author: Wang Jiaxin This article is about 3,000 words, and it is recommended to read for 6 minutes. The major changes brought about by blockchain technology also pose many challenges to financial services, ecological security, and privacy protection. Encrypted digital currency is a type of digital currency that does not rely on the issuance of […]