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Proxy re encryption and blockchain Technology
Publish: 2021-05-23 05:49:09
1. blockchain technology uses mathematical methods to achieve distributed accounting and solve the trust problem, so as to complete the decentralization, which will bring far-reaching influence in many fields such as communication, finance, Internet of things, government management and so on
blockchain refers to the technical solution of collective maintenance of a reliable database through centralization and distrust in the past, and it is a technical way for the whole people to participate in bookkeeping. Previous bookkeeping methods were all centralized and needed centralized intermediary, whether it was traditional government, financial institutions, notarization institutions or emerging e-commerce platform and online payment platform
in economic hypothesis, information is sufficient. In fact, it is precisely because of insufficient information that there are very large intermediaries. The existence of intermediaries increases the transaction cost and raises the transaction threshold. In essence, blockchain technology is a large-scale collaboration tool. It makes direct value transfer possible by using pure technology for the first time, and continues the trend of Internet decentralization and disintermediation. Disintermediated blockchain technology will greatly subvert the information intermediary instry
blockchain technology is the basic technology for building bitcoin data structure and encrypted transmission of transaction information, which realizes the issue and transaction of bitcoin. The core of blockchain technology is that all the current participating nodes jointly maintain the transaction and database, so that the transaction is based on the principle of cryptography rather than trust, so that any agreed parties can directly carry out payment transactions without the participation of a third party
technically, a block is a data structure for recording transactions, reflecting the capital flow of a transaction. In the system, the transaction blocks are connected to form a main chain, and all the nodes participating in the calculation record the main chain or part of the main chain
a block contains the following three parts: transaction information, hash formed by the previous block and random number. Transaction information is the task data carried by the block, including the private keys of both parties, the number of transactions, the digital signature of electronic currency, etc; The hash hash formed by the previous block is used to connect the blocks and realize the sequence of past transactions; Random number is the core of the transaction. All nodes compete to calculate the answer of the random number. The node that gets the answer the fastest generates a new block and broadcasts it to all nodes for updating, so as to complete a transaction.
blockchain refers to the technical solution of collective maintenance of a reliable database through centralization and distrust in the past, and it is a technical way for the whole people to participate in bookkeeping. Previous bookkeeping methods were all centralized and needed centralized intermediary, whether it was traditional government, financial institutions, notarization institutions or emerging e-commerce platform and online payment platform
in economic hypothesis, information is sufficient. In fact, it is precisely because of insufficient information that there are very large intermediaries. The existence of intermediaries increases the transaction cost and raises the transaction threshold. In essence, blockchain technology is a large-scale collaboration tool. It makes direct value transfer possible by using pure technology for the first time, and continues the trend of Internet decentralization and disintermediation. Disintermediated blockchain technology will greatly subvert the information intermediary instry
blockchain technology is the basic technology for building bitcoin data structure and encrypted transmission of transaction information, which realizes the issue and transaction of bitcoin. The core of blockchain technology is that all the current participating nodes jointly maintain the transaction and database, so that the transaction is based on the principle of cryptography rather than trust, so that any agreed parties can directly carry out payment transactions without the participation of a third party
technically, a block is a data structure for recording transactions, reflecting the capital flow of a transaction. In the system, the transaction blocks are connected to form a main chain, and all the nodes participating in the calculation record the main chain or part of the main chain
a block contains the following three parts: transaction information, hash formed by the previous block and random number. Transaction information is the task data carried by the block, including the private keys of both parties, the number of transactions, the digital signature of electronic currency, etc; The hash hash formed by the previous block is used to connect the blocks and realize the sequence of past transactions; Random number is the core of the transaction. All nodes compete to calculate the answer of the random number. The node that gets the answer the fastest generates a new block and broadcasts it to all nodes for updating, so as to complete a transaction.
2. The trend of the next era will also become the biggest bubble in human history.
3. virtual currency is a kind of blockchain technology. Some countries are legal, such as Japan, Russia, South Korea, etc. 66otc is currently the most fluent, reliable and best used OTC platform
4. 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.
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.
5. The encryption of jinwowo blockchain can ensure that the privacy of data sources can be better protected when big data is called, so as to eliminate the bad phenomenon of reselling data.
6. First of all, these two are virtual assets. The price of these two kinds of digital currency, or a specific price of digital currency, is determined according to the market situation
the details of these two digital assets are as follows
bitcoin (bitcoin: bitcoin) was originally a kind of network virtual currency, which can buy real-life goods. It is characterized by decentralization, anonymity, and can only be used in the digital world. It does not belong to any country or financial institution, and is not subject to geographical restrictions. It can be exchanged anywhere in the world. Therefore, it is used as a money laundering tool by some criminals
the full name of NMC is "new media chain", the Chinese name is media chain, and the former domain name currency (also referred to as NMC) is two completely different currencies. NMC is the circulating currency of three decentralized application platforms: coin call [blockchain information community portal], coin search [blockchain network query tool], ncoin [digital currency exchange]. However, the prices of these two kinds of digital currencies will fluctuate with the market, which can not guarantee a development prospect. If the current price is concerned, bitcoin will be a bit higher.
the details of these two digital assets are as follows
bitcoin (bitcoin: bitcoin) was originally a kind of network virtual currency, which can buy real-life goods. It is characterized by decentralization, anonymity, and can only be used in the digital world. It does not belong to any country or financial institution, and is not subject to geographical restrictions. It can be exchanged anywhere in the world. Therefore, it is used as a money laundering tool by some criminals
the full name of NMC is "new media chain", the Chinese name is media chain, and the former domain name currency (also referred to as NMC) is two completely different currencies. NMC is the circulating currency of three decentralized application platforms: coin call [blockchain information community portal], coin search [blockchain network query tool], ncoin [digital currency exchange]. However, the prices of these two kinds of digital currencies will fluctuate with the market, which can not guarantee a development prospect. If the current price is concerned, bitcoin will be a bit higher.
7. When it comes to blockchain, we have to talk about bitcoin. Most people in the market begin to recognize bitcoin through its market influence, because bitcoin was born on the basis of blockchain technology. Blockchain is simply an innovative application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Applying this technology to the transaction of virtual currency can make each transaction proce a corresponding data block, so as to ensure the authenticity of information. The biggest advantage is that it cannot be forged, It solves the trust problem in data transaction environment
of course, as blockchain technology becomes more and more mature and stable, it will be more and more applied in various real instry business scenarios, including finance, social communication, Internet of things, e-commerce, games and securities trading, For example, our project of "intelligent system for ecological chain of structural hole investment and financing" is the first innovative application of this technology in the field of investment and financing. However, from the purely technical level, the main purpose of blockchain is to ensure the safety of data operation, which is the biggest advantage of this technology. So what is the relationship between blockchain technology and virtual currency? Take bitcoin as an example. Bitcoin is a virtual currency based on blockchain technology and proced through a large number of algorithms. Due to its special algorithm and the anti-counterfeiting function of blockchain technology, the total number of bitcoin will remain unchanged at 21 million. It is precisely because things are rare that bitcoin is loved by many people
so why are there a lot of virtual currency scams under the banner of blockchain in the market today? This is because these so-called innovative application companies of blockchain issue virtual currencies. Although they claim that the number of virtual currencies is very limited in the market promotion, and they can make investors earn a price difference by raising the price through currency speculation, in essence, the issuance of their virtual currencies is controlled by their companies and can be changed according to their own wishes and needs, The purpose is to make illegal profits. In the market, many investors who don't know the truth are cheated because they lack the knowledge of financial investment. They are in the spirit of speculation to earn profit. Once they are put in, these so-called virtual currencies will be manipulated by the company in the background, resulting in the loss of money. When investors enter into such a game, they often change from the original intention of speculation to gambling. When they buy at a high price and see that the price continues to fall, they will naturally make up their positions and make additional investment when there is a rebound. In this way, they are repeatedly cleaned up and cut leeks. Finally, they sink deeper and deeper and lose their property. It is precisely because the price is controlled by the company, Therefore, these companies make huge profits, even beyond the imagination of ordinary people. What we want to say about this market phenomenon is that it is not the fault of blockchain technology itself, but that it is caused by some illegal people in the market who stealthily changed the concept, took advantage of people's lack of professional knowledge of blockchain technology and financial investment, and grasped the psychology of greed for wealth< br />
the existence of these black sheep in the market confuses the public and disturbs the market. As a result, the innovative application of business scenarios based on blockchain technology has brought serious practical obstacles to the healthy development of social economy and value creation of entrepreneurial and innovative projects, such as the "structural hole investment and Financing Ecological Chain Intelligent System" project, In fact, it is based on the innovative application of blockchain + AI + OKR and other technologies in the investment and financing ecological business scenario, and redefines the investment and financing business model. The purpose is to provide enabling services for the three groups of project parties, resource providers and investors in the ecological chain to create value and fulfill value transactions, so as to significantly improve the success rate of investment and financing for the three groups of customers, without issuing virtual currency, Without manipulating the price of the virtual money market, it is a good project for the healthy development of the social economy, which is also affected. It is really painful and difficult, but it has nothing to do, and it can only bear the hardships silently. Today's view is: blockchain fraud is guilty, and blockchain technology cannot be innocent.
of course, as blockchain technology becomes more and more mature and stable, it will be more and more applied in various real instry business scenarios, including finance, social communication, Internet of things, e-commerce, games and securities trading, For example, our project of "intelligent system for ecological chain of structural hole investment and financing" is the first innovative application of this technology in the field of investment and financing. However, from the purely technical level, the main purpose of blockchain is to ensure the safety of data operation, which is the biggest advantage of this technology. So what is the relationship between blockchain technology and virtual currency? Take bitcoin as an example. Bitcoin is a virtual currency based on blockchain technology and proced through a large number of algorithms. Due to its special algorithm and the anti-counterfeiting function of blockchain technology, the total number of bitcoin will remain unchanged at 21 million. It is precisely because things are rare that bitcoin is loved by many people
so why are there a lot of virtual currency scams under the banner of blockchain in the market today? This is because these so-called innovative application companies of blockchain issue virtual currencies. Although they claim that the number of virtual currencies is very limited in the market promotion, and they can make investors earn a price difference by raising the price through currency speculation, in essence, the issuance of their virtual currencies is controlled by their companies and can be changed according to their own wishes and needs, The purpose is to make illegal profits. In the market, many investors who don't know the truth are cheated because they lack the knowledge of financial investment. They are in the spirit of speculation to earn profit. Once they are put in, these so-called virtual currencies will be manipulated by the company in the background, resulting in the loss of money. When investors enter into such a game, they often change from the original intention of speculation to gambling. When they buy at a high price and see that the price continues to fall, they will naturally make up their positions and make additional investment when there is a rebound. In this way, they are repeatedly cleaned up and cut leeks. Finally, they sink deeper and deeper and lose their property. It is precisely because the price is controlled by the company, Therefore, these companies make huge profits, even beyond the imagination of ordinary people. What we want to say about this market phenomenon is that it is not the fault of blockchain technology itself, but that it is caused by some illegal people in the market who stealthily changed the concept, took advantage of people's lack of professional knowledge of blockchain technology and financial investment, and grasped the psychology of greed for wealth< br />
the existence of these black sheep in the market confuses the public and disturbs the market. As a result, the innovative application of business scenarios based on blockchain technology has brought serious practical obstacles to the healthy development of social economy and value creation of entrepreneurial and innovative projects, such as the "structural hole investment and Financing Ecological Chain Intelligent System" project, In fact, it is based on the innovative application of blockchain + AI + OKR and other technologies in the investment and financing ecological business scenario, and redefines the investment and financing business model. The purpose is to provide enabling services for the three groups of project parties, resource providers and investors in the ecological chain to create value and fulfill value transactions, so as to significantly improve the success rate of investment and financing for the three groups of customers, without issuing virtual currency, Without manipulating the price of the virtual money market, it is a good project for the healthy development of the social economy, which is also affected. It is really painful and difficult, but it has nothing to do, and it can only bear the hardships silently. Today's view is: blockchain fraud is guilty, and blockchain technology cannot be innocent.
8. Explain blockchain with scientific language --- blockchain is a permanent and irreversible modified record generated by superimposing encrypted data (blocks) in chronological order. Many financial institutions in the world, including JPMorgan Chase, HSBC, Citibank and New York Mellon bank, have also cooperated with blockchain companies to study the application of blockchain technology in the financial market. The person in charge of the blockchain Technology Laboratory of Shanghai Heshu software said that when there is no trusted third party in blockchain, all transaction data will be stored in a data block, and the transaction information will form a complete chain and be included in the blockchain, which is a more reliable ultimate solution than the trusted third party.
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