How to guarantee the credit of digital currency
China's digital currency is as long as there is a mobile phone, no network, as long as the touch can be paid, and with detailed transaction records, it is very helpful to combat money laundering crime; This currency is mainly aimed at grabbing shares for Alipay, WeChat and POS terminals. It can also pave the way for RMB internationalization. Digital currency is not only safe and endorsed by the state, but the global central bank is pushing digital money. Now the digital currency is still in the testing stage. What time will it be popularized? It will have to wait until the Beijing Winter Olympic Games in February 2022 to fully promote the use
China's central bank's digital currency can be used for daily micro payments. Because it will be more stable with the endorsement of the state, the central bank's digital currency is different from bitcoin and Libra launched by Facebook. I give digital currency legal effect, and indivials can't refuse to accept it. At the same time, it is very convenient to use. It can be paid without binding any bank account. Digital currency will not cause inflation. Now it can be implemented and used in Shenzhen, xiong'an, Cheng, Suzhou and other cities. It also shows that the era of paperless is coming. Digital currency is a new concept with high technology content. In the future, RMB will enter the 3.0 era. Although the current digital currency is more powerful, it is still unable to put an end to money laundering and corruption
it's like an account book. We can record all our loans on it. Anyone can write on it, but how can we ensure that others don't Scribble
you will want to sign at the back, but someone will fake your signature. So we need to use electronic signature, that is, each account will generate a key, which only you know, and then confirm that the signature is your own through the public key
the above is only a safe way of lending, but it still needs a website to act as a bank, so the website can modify the amount of lending at will, and there is no law to restrict it
therefore, it is necessary to decentralize, that is, to publish one's own account and let everyone share it, so that the opposite side will not cheat. But how do you make sure people don't tamper with your bills
first of all, an account book must be divided into one page, that is, blockchain. According to the content of the blockchain, a hash function (a bit like a key, but with different functions) will be generated. The hash function is a one-way function and can't be pushed backward, so you can only rely on guessing to decipher it. The amount of enumeration needed to decipher a password is called workload. Then the computer will stamp the proof of workload on your bill, and the proof of workload means there is no mistake. So how can you convince others that you're not lying
this requires credibility. The measure of credibility is workload. The bill with heavy workload has more credibility. The workload here does not refer to the amount of calculation, but refers to the number of bills, that is, the number of blockchains. The more repeated the same account is received, the stronger the credibility is. Because others will sort out the accounts they receive, and then re publish them, which is an infinite cycle process. This prevents people from cheating by not publishing their bills
every time a blockchain is released, it will be rewarded, that is, "mining". But in order to prevent the unlimited expansion of bitcoin, bitcoin will dig less and less, that is, the rewards will be less and less. Therefore, players want to increase the release volume of blockchain by paying others a reward (service charge) at their own expense, and at the same time form its monetary function
furthermore, the total number of bitcoin is unchanged, but more and more people use it, so it is more and more difficult to dig, which is why many people have been complaining about the mine disaster
in my opinion, bitcoin is not so much a currency as a game. In short, it means that you pay more for mining, and the more you dig, the more you win.
Tesla bought nearly 10 billion! Bitcoin is worth more than Facebook. This series of events makes the strengthening of bitcoin continue to rise, and it is easy to cut leeks to invest in bitcoin now the continuous development of Internet technology not only has a profound impact on people's way of life, but also promotes the vigorous development of Internet finance instry. The resulting digital cryptocurrency is widely concerned by investors for its novel architecture design and high price
the current digital currency implemented by the central government also affects the investment value of bitcoin the digital currency of the central bank is the first digital currency issued by major economies in the world. At present, the preparatory work before the release is in progress. This kind of digital currency will replace RMB paper currency and provide functions such as transaction and storage, which is expected to change people's lives in the future. Although the issuing methods of digital currency of the central bank are different from those of bitcoin and other digital coins, it can learn from the valuable experience of bitcoin and other digital currencies that have been mature for more than ten years< strive to further improve the digital money market of the central bank, provide more convenience for people's economic life, so as to make the country's economic construction to a higher level
With the advent of digital currency, the encryption algorithm of currency is becoming more and more important. What are the types of passwords
classical cipher types mainly include transposition cipher and rearrangement of alphabetic order messages. For example, "Hello world" becomes "ehlol owrdl"
Diffie Hellman and RSA algorithms have been widely used except for the first public example of high quality public key algorithms. Other asymmetric key algorithms include Cramer schup cryptosystem, ElGamal encryption and various elliptic curve techniquessome well-known cryptosystems include RSA encryption, Schnorr Signature, El Gamal encryption, PGP and so on. More complex password systems include e-cash system, signcryption system, etc. Now more cryptosystems include interactive proof systems, such as zero knowledge proof, which is used for secret sharing
for a long time, information collection and law enforcement agencies have been interested in cryptography. The importance of secret communication is self-evident. Because cryptography promotes privacy protection, it also attracts great interest of cryptography supporters. Therefore, there is a history of controversial legal issues around cryptography, especially since the emergence of cheap computers makes it possible to widely use high-quality cryptography
nowadays, cryptocurrency transactions are semi anonymous, which makes them very suitable for a series of illegal activities, such as money laundering and tax evasion. However, the proponents of cryptocurrency often attach great importance to the anonymity of digital currency and think that it can protect the privacy of users. Some cryptocurrencies are more private than others
Cryptocurrency is a new type of digital asset, which is based on the network distributed on a large number of computers. This decentralized structure enables them to exist outside the control of the government and central authorities. The term "cryptocurrency" also comes from the encryption technology used to protect the networkblockchain is an organization method to ensure the integrity of digital currency transaction data, and it is an important part of many cryptocurrencies. Many experts believe that blockchain and related technologies will subvert many instries, including finance and law. Cryptocurrencies have been criticized for many reasons, including their use for illegal activities, exchange rate fluctuations and the vulnerability of the infrastructure that underpins them. However, digital currency is also praised for its portability, divisibility, anti inflation and transparency