The relationship between digital currency and quantum computer

1. Their meaning is basically the same. digital currency is an alternative currency in the form of electronic currency. Both digital gold coin and password currency belong to digital currency. It is different from the virtual currency in the virtual world, because it can be used for real goods and services transactions, not limited to online games
several characteristics of digital virtual currency
1, decentralization
2, independent e-wallet
3, open source code
4, measurement and issuance
5, negotiable
investment in virtual currency is now very promising

2.

1. The concept range is different. bitcoin is a kind of digital currency, and the concept of digital currency covers bitcoin

However, some digital currencies have independent issuers

The biggest difference between bitcoin and other virtual currencies is that the total quantity of bitcoin is very limited and it has a strong scarcity. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to 21 million

digital currency is abbreviated as digiccy, which is the abbreviation of "digital currency" in English. It is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy. Bitcoin is a digital currency

digital currency is different from the virtual currency in the virtual world, because it can be used for real goods and services transactions, not limited to online games. The early digital currency (digital gold currency) is a form of electronic currency named after the weight of gold

today's digital currencies, such as bitcoin, lettercoin and ppcoin, are electronic currencies created, issued and circulated by means of check sum cryptography. It is characterized by the use of P2P peer-to-peer network technology to issue, manage and circulate currency. In theory, it avoids bureaucratic examination and approval, so that everyone has the right to issue currency

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illegal digital currency

in recent years, "virtual currency" represented by bitcoin, Ethernet currency and Leyte currency has been traded centrally on some Internet platforms. With the help of financial technology, the price of these "currencies" has graally spread to investment, financing and other financial fields, which has aroused wide attention from all walks of life

not long ago, the people's Bank of China and other seven ministries and commissions jointly issued the announcement on preventing the financing risk of token issuance, which clearly regulated the relevant behaviors. Experts pointed out that "virtual currency" is not legal tender (legal currency) issued by monetary authorities, but a specific virtual commodity in essence

therefore, it is undoubtedly a great legal and economic risk to think that "virtual currency" has or will have the nature of legal tender and to carry out speculation, network fund-raising, lending and financing

3.

1. Application of different

digital currency: fast, economic and safe payment and settlement; Bill finance and supply chain finance; The real right of collateral is digitalized

e-money: the seller sends the buyer's payment instructions to the seller's acquiring bank through the payment gateway; The acquiring bank obtains the authorization from the issuing bank through the bank card network, and sends the authorization information back to the seller through the payment gateway; After obtaining the authorization, the Seller shall send the buyer the shopping completion information. If payment acquisition and payment authorization cannot be completed at the same time, the seller should send payment acquisition request to the acquiring bank through the payment gateway, and transfer the transaction funds from the buyer to the seller's account. The final inter-bank settlement is completed by the payment system between banks

2. Different characteristics

digital currency is characterized by low transaction cost, fast transaction speed and high anonymity

e-currency is characterized by anonymity, saving transaction cost, saving transmission cost, small holding risk, flexible and convenient payment, anti-counterfeiting and anti repetition, and non traceability

Digital currency can be divided into three categories: completely closed, unrelated to the real economy and only used in specific virtual communities, such as world of warcraft gold; It can be purchased in real currency but not converted back to real currency, and can be used to purchase virtual goods and services, such as Facebook credit; It can exchange and redeem with real currency according to a certain ratio. It can purchase both virtual goods and services and real goods and services, such as bitcoin

e-money: e-cash based on the Internet environment and keeping the binary data representing the value of money in the hard disk of the computer terminal; An electronic wallet that keeps the value of money in an IC card and can be circulated out of the bank payment system

4. One of the key technologies of digital currency is elliptic curve encryption, which is the core technology of digital signature of cryptocurrency. It can ensure the ownership, non plication and transaction integrity of cryptocurrency. But with the advent of quantum computers, it will no longer be secure. The quantum attack of quantum computer can solve the underlying mathematical problems, and the digital signature based on elliptic curve encryption can be forged. This is fatal for cryptocurrency, because the records of distributed ledger can not be tampered with and reversed. If elliptic curve encryption can be broken, then the security foundation of cryptocurrency will no longer exist.

5.

1. Digital currency

digital currency is an alternative currency in the form of electronic currency. Both digital gold coin and password currency belong to digital currency

digital currency is different from the virtual currency in the virtual world, because it can be used for real goods and services transactions, not limited to online games. The early digital currency (digital gold currency) is a form of electronic currency named after the weight of gold. Today's digital currency, such as bitcoin, lightcoin and ppcoin, is an electronic currency created, issued and circulated by check sum cryptography

features: the use of P2P peer-to-peer network technology to issue, manage and circulate currency theoretically avoids bureaucratic examination and approval, so that everyone has the right to issue currency

Electronic money means that a certain amount of cash or deposit is exchanged from the issuer and the data representing the same amount is obtained. By using some electronic methods, the data is directly transferred to the payment object, so that the debt can be paid off. Strictly speaking, consumers pay traditional money to the issuers of electronic money, and the issuers store the equal value of traditional money in the electronic devices held by consumers in electronic form. In short, when we deposit money into our bank account, there will be an extra number in the bank account, which means how much money we have saved. In this process, we give the banknotes in our hands to the bank, and the bank adds a number to our bank card, which is our electronic currency

features:

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e-money and paper money (or physical money) can be easily converted to each other

the data of electronic currency corresponds to the same amount of physical currency

we need to pay physical money to the issuers of e-money (banks and other financial institutions) in order to exchange for the same amount of e-money

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3. The similarity between digital currency and electronic currency: both exist in the form of electronic data

The differences between digital currency and electronic currency are as follows:

electronic currency has an issuing institution, and the corresponding amount of physical currency in the institution can be exchanged with physical currency; However, digital currency has no specific issuing institution (decentralization) and can only exist in network data

at present, there is no international consensus on whether digital currency is a currency or not, so in China, the main form of digital currency is "investment proct", which is a rather risky investment proct, and only a few businesses are willing to accept digital currency consumption; Of course, some countries (Germany, etc.) have officially recognized the currency status of digital currency

6.

There is no relationship between digital currency and Internet of things.

related introction:

the application fields of digital currency and Internet of things are different

1. Internet of things:

through a variety of information sensors, RFID technology, global positioning system, infrared sensors, laser scanners and other devices and technologies

Digital currency:

is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy

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through various possible network access, the Internet of things realizes the ubiquitous connection between things and people, and realizes the intelligent perception, identification and management of goods and processes. The Internet of things is an information carrier based on the Internet and traditional telecommunication network. It enables all ordinary physical objects that can be independently addressed to form an interconnected network

and digital currency can be considered as a virtual currency based on node network and digital encryption algorithm, which mainly applies fast, economic and secure payment and settlement, establishes digital wallet through digital currency, realizes lower cost and more secure micro payment and capital transfer in areas with insufficient financial coverage and underdeveloped economy, and increases intermediate business income

7. There is complementarity between digital currency and Internet of things, but in fact it has little to do with each other
digital currency generally refers to the mainstream currencies such as bitcoin, lightcoin, ethereal currency, dogcoin, etc
of course, we can't exclude the multi-level marketing currencies such as Vicat and Baichuan.

8. Digital currency is proced and developed with the development of information technology, which is driven by application practice. The development of digital currency is closely related to the payment environment, and the continuous progress of payment technology will provide a broader space for the evolution and innovation of digital currency.

9. LCF has nothing to do with the Internet of things and digital currency, and some lawbreakers are carrying out false propaganda. LCF is not a reliable digital currency, which is a typical marketing currency
before that, some people questioned that in fact, the pyramid scheme is very similar to the scheme. Is it a scam? Just compare it with normal digital currencies such as bitcoin, Ruitai coin, Laite coin and vitality coin.