Is blockchain data encrypted

1. Because blockchain technology has natural advantages in realizing smart contracts
bitcoin, Ruitai coin, Laite coin, Ethereum and other digital cryptocurrencies all use blockchain technology
blockchain is an important concept of bitcoin, which is essentially a decentralized database and the underlying technology of bitcoin. Blockchain is a series of data blocks generated by cryptography. Each data block contains the information of a bitcoin network transaction, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block.

2. Blockchain encryption algorithm
asymmetric encryption algorithm is a function that converts the original plaintext file or data into a series of unreadable ciphertext codes by using an encryption key. The encryption process is irreversible. Only holding the corresponding decryption key can the encrypted information be decrypted into readable plaintext. Encryption enables private data to be transmitted through the public network under the condition of low risk, and protects the data from being stolen and read by the third party
the core advantage of blockchain technology is decentralization, which can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the high cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.

3.

1.1. Introction

practitioners in the computer instry should be very familiar with the word hash. Hash can realize the mapping of data from one dimension to another, and hash function is usually used to realize this mapping. Generally, y = hash (x) is used in the instry. The hash function can calculate a hash value y by calculating X
hash function characteristics in blockchain:

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function parameters are string type

fixed size output

is computationally efficient

collision free means that the conflict probability is small: X= y => hash(x) != Hash (y)

hide the original information: for example, the verification of transactions between nodes in the blockchain only needs to verify the information entropy of the transaction, and does not need to compare the original information. The nodes do not need to transmit the original data of the transaction, only the hash of the transaction, Common algorithms include Sha series and MD5

1.2. Hash is widely used in blockchain. One of them is called hash pointer
hash pointer, which means that the value of the variable is calculated from the actual data and points to the actual data location, That is, it can not only represent the actual data content, but also the storage location of the actual data. The figure below shows the schematic diagram of hash pointer

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5. Jinwowo network believes that privacy protection is the advantage of blockchain. We use cryptography and distributed structure to protect privacy
jinwowo will use blockchain technology to promote the legalization of big data business. The encryption of blockchain technology can ensure that the privacy of data sources can be better protected while big data is called.

6. Absolute privacy encryption means that the addresses of both sender and receiver can not be identified and tracked, the content of the transaction is fully protected, the user's privacy is absolutely protected, but it also increases the chance of abuse by criminals. In reality, in order to meet the regulatory requirements of enterprises, especially the financial system, cryptocurrency, which has complete privacy for the public and indivials, and accountability privacy for regulatory and audit institutions, will graally become the mainstream. Abe / Abbey coin has the ability of different privacy levels, which can meet the needs of indivials in terms of privacy, as well as regulatory or corporate accountability.

7. The application of blockchain technology mainly starts from several characteristics of blockchain technology. Blockchain technology has a great feature, that is, the information can not be tampered with. Once the information is verified and added to the blockchain, it will be stored permanently. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid. Therefore, the data stability and reliability of blockchain are extremely high. For example, Yingtang Zhongchuang can provide background encryption service with blockchain as the underlying technology, and its encryption technology can fundamentally ensure the security and storage of data.