Since October 24, the national high-level voice on the blockchain technology, the traditional industry giants and national giants began to sweep the whole industry. In fact, giants like Alibaba, Huawei, Tencent and Baidu are already ready to go.
However, for these giant alliance chains, both the underlying facilities and ecological construction have been very perfect, and their own technical advantages are far better than most other public chains. Today, the blockchain technology community of the chain customer will reveal for you what the alliance chain is? What are the unknown advantages and disadvantages?
What is alliance chain?
Alliance chain, also known as community blockchain or local area chain, refers to the blockchain that is subject to pre selected nodes in the process of consensus. For blockchain, according to access and management rights, it can be divided into public chain, private chain and alliance chain. The public chain is a completely free and open blockchain, and everyone can maintain the blockchain system; Private chain usually only provides services for one enterprise; Compared with the public chain, the alliance chain has more restrictions and can provide more services for the cooperation among multiple enterprises.
To some extent, the alliance chain is also a private chain, but its degree of privacy is different, and its permission design requirements are more complex and its credibility is higher. Generally speaking, the public chain is suitable for the scenario with high requirements for credibility and security, but low requirements for transaction speed. Private chain or alliance chain is more suitable for applications with high requirements for privacy protection, transaction speed and internal supervision. The confirmation time and the number of transactions per second of alliance chain are quite different from public chain, and the requirements of security and performance are higher than public chain.
Advantages of alliance chain
1. Strong controllability
Compared with the public chain, because the nodes are generally massive, once the blockchain is formed, the block data will not be tampered with. For example, there are too many bitcoin nodes, so it is almost impossible to tamper with the block data; In the alliance chain, as long as most of the organizations in the alliance reach a consensus, the block data can be changed;
2. Semi centralization
To some extent, the alliance chain is only owned by members within the alliance. Because the number of nodes is limited, it is easy to reach a consensus.
3. Fast Trading
In essence, the alliance chain is still a private chain, but because of the limited number of nodes, it is easy to reach a consensus, so the transaction speed is also very fast.
4. Data will not be disclosed by default
Different from the public chain, the data of the alliance chain is only limited to the internal organizations of the alliance and their users.
Disadvantages of alliance chain
one sideBecause of the semi centralized structure of alliance chain, it is easy to be attacked by malicious players. In a limited number of nodes, it can be assumed that multiple participants will collude;
on the other handDue to the lack of unified industry standards, there will inevitably be various obstacles in the solution, but the whole ecological alliance chain is still far away from the unified framework.
In addition, for large comprehensive enterprises, due to their poor flexibility in application scenarios. In order to start a new alliance, it must be approved by all members. However, large enterprises have many processes and complicated constraints, so it is very slow for many large enterprises to establish this kind of common network.
In a word, no matter what kind of chain is, it is de centralized in essence, but at this stage, due to the limitation of industry application, it is difficult to reach a real consensus. Although the road of blockchain development is tortuous, with the continuous development of technology, alliance chain is likely to be the most effective way to compromise.