Can bitcoin be used
although bitcoin still has great risks, after years of development, with the increase of its application population, application scenarios and application technology, no country or organization can completely eliminate it. If you can figure it out, it is likely that countries will generally accept bitcoin and embrace it
according to my personal judgment, bitcoin, after a period of continuous development, is likely to become a world currency in the future, which can play the role of electronic gold and become the target of the value of other sovereign currencies. From this perspective, bitcoin can be used as a means of asset preservation in the future when inflation is inevitable
there are basically two kinds of attacks, one is dictionary attack, the other is brute force attack
dictionary attack is to use common passwords and their simple variants as keys one by one. As long as your pass phrase is not hard enough, the possibility of successful attack is very high. So if you want to use this, you need to popularize the knowledge of cryptography first, and don't think it's very safe to add a long password
if you don't use the wallet generated by pass phrase, you can only crack it violently, which is equivalent to enumerating all the possible keys. At present, this is impossible, even if the electronic computer is becoming more and more powerful. However, quantum computer can do it theoretically, but don't worry too much. If such a powerful quantum computer comes out, it will not only endanger bitcoin
at the same time, bitcoin has a second layer of protection: if an address only accepts bitcoin but does not output it, its public key is confidential, that is to say, no one else can see the box, only the box number. At present, the process of decing the box from the box number can't even be done by quantum computer. In other words, if there is a quantum computer, bitcoin has a last line of Defense: it's temporarily safe to transfer your money to a new address
finally, some time ago, the wallet generated by the Android client was attacked because of a bug in the underlying random number generator. In fact, this function is not random securerandom, which Google quickly admitted and fixed. It's hard to say whether this kind of thing will happen again, but I don't think we need to worry too much.
bitcoin has many advantages such as world circulation, decentralization, exclusive rights and fixed quantity, and its formation is also under the needs of human economic development. Therefore, with the development of bitcoin, its existence will bring certain challenges to the traditional currency. However, at present, although bitcoin believes in liberalism and the principle of science and technology, it has brought great challenges to the traditional currency. However, from the characteristics of bitcoin circulation, such as high risk, difficult supervision and instability, bitcoin can only coexist with the traditional currency for a long time in the future, but it can not replace the traditional currency.
the further development of bitcoin may threaten the interests of traditional currencies, and currency issuers will not cede their rights to an open-source P2P algorithm. So governments are likely to outlaw bitcoin
once governments declare it illegal, it may cause huge fluctuations in its price in the short term. It could be a crash, it could be a surge. Because people at the bottom of the world are obviously resistant to their governments< At the same time, the ban by the government will lead to the closure of bitcoin trading platform. After the closing of the trading platform, bitcoin can only be cashed in private, which will have a great impact on its cashing ability< However, e to the characteristics of bitcoin itself, it provides an excellent channel for officials of various countries to accept bribes, launder money and transfer assets overseas. Especially in the trend that officials of various countries disclose their property, bitcoin provides a good way for them to hold huge property anonymously
from this perspective, some officials may actively promote the legalization of bitcoin< On May 7, 2013, officials from the US Commodity Futures Trading Commission (CFTC) said that they were considering whether the online virtual currency "bitcoin" could be applied to the agency's regulations. CFTC is the highest regulator of the derivatives instry in the United States. Bitcoin is known as a currency independent of traditional authority, and if it is regulated more, it may bring challenges to its supporters
CFTC mainly supervises derivatives contracts. Its responsibilities have been greatly expanded after the financial crisis in 2007-2009, and it also has full power to supervise retail foreign exchange dealers
Bart Chilton, one of the five members of the CFTC, said on Monday that he had asked the committee to consider regulating bitcoin to determine whether consumers need additional protection when using bitcoin[ 15]
the Hong Kong government has approved GBL electronic currency trading center to operate virtual currency exchange business, which will be an important milestone in the development of bitcoin. GBL virtual electronic currency trading center has completed the equity change and has the business scope of virtual electronic currency exchange business.
Bitcoin is illegal in China
since September 4, 2017, China has expressed its opposition to the virtual currency exchange. On the market, large-scale exchanges are graally fading out of the domestic market. Some of them are going to Japan and some of them are going to Nanyang. Of course, with the release of new regulations in Hong Kong in early November, we believe that in the future, the virtual currency exchange may obtain a legal license in Hong Kong to serve local institutional investors
extended information:
bitcoin China said that the platform will stop withdrawing cash. So far, bitcoin China has closed all transaction functions. The other two bitcoin trading platforms in China, huocoin.com and okcoin, have also stopped trading all digital assets against RMB
the virtual currency represented by bitcoin has soared, attracting a large number of ordinary people without any technology and investment knowledge to enter this high-risk market
the central bank, together with many ministries and commissions, issued the announcement on preventing the financing risks of token issuance (hereinafter referred to as the announcement), which pointed out that no organization or indivial may engage in the financing activities of token issuance illegally According to the announcement, all kinds of token issuance and financing activities should be stopped immediately from the date of issue
the organizations and indivials that have completed the token issuance financing should make arrangements such as liquidation, reasonably protect the rights and interests of investors, and properly handle the risks. Relevant departments will seriously investigate and deal with the activities of token issuance and financing that refuse to stop and the illegal behaviors in completed token issuance and financing projects
the China Internet Finance Association issued the "tips on preventing the risks of bitcoin and other so-called" virtual currency ", pointing out that bitcoin trading platform is a tool for money laundering, drug trafficking, smuggling, illegal fund-raising and other illegal criminal activities e to the expanding number of stakeholders and strong speculative atmosphere; There is no legal basis for the establishment of various so-called "currency" trading platforms in China
On the afternoon of December 5, 2013, the people's Bank of China issued the notice on preventing bitcoin risks. In the notice, the people's Bank of China said that bitcoin is not a currency, but a virtual commodity. Financial institutions and Payment institutions are not allowed to carry out business related to bitcoin. As soon as the notice was issued, bitcoin fell sharply on China's trading platform, and it has dropped by 60% in three weeks. This is the beginning of bitcoin being restricted by the Central Bank of China. In mid March 2014, the people's Bank of China issued a notice on further strengthening bitcoin risk prevention to all branches of the people's Bank of China, which required all banks and third-party payment institutions to close the trading accounts of 15 domestic bitcoin platforms before April 15. This shows that it is illegal for financial institutions in China to open trading accounts for bitcoin website platforms. Except for cash transactions, bitcoin investors can not conct bank transfer and third-party payment for transactions in China< br />
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9 14, the bitcoin China announced the official account of WeChat public tonight. The bitcoin China digital asset trading platform will stop new users registration today. On September 30, 2017, the digital asset trading platform will stop all trading businesses