Why is a blockchain secure? The role of cryptography in blockchain secure. en.shilian.com

Why is the blockchain safe? bitcoinworthtoday.com cointopaper.com Blockchain technology is very safe in design. Blockchain security is a comprehensive risk management system for blockchain networks, using network security framework, guarantee services and best practices to reduce attack and fraud risk. Blockchain security is far from a simple topic. In this article, we will explore the security issues of the blockchain.

What is a blockchain?

Blockchain technology produces a data structure with internal security characteristics. It is based on the principles of cryptography, decentralization and consensus to ensure the credibility of the transaction. In most blockchain or distributed ledger technology (DLT), the data is constructed into blocks, and each block contains one transaction or a group of transactions. Each new block is connected to all the previous blocks before the password chain in a way that is almost impossible to be tampered. All transactions in the block are verified and agreed by the consensus mechanism to ensure that each transaction is real and correct.

Blockchain technology achieved decentralization through the participation of members in a distributed network. Without a single -point failure, a single user cannot change the transaction record. However, blockchain technology is different in terms of key security.