Go to blockchain companies for testing
February 24 (Xinhua) the security of encrypted digital currency assets is completely based on the security of the private key of encrypted digital wallet, which is the only digital asset certificate. Once the private key is created, it cannot be modified and reset. As long as the private key is not lost, the asset will not be lost. Therefore, the whole security topic of encrypted digital assets is around the storage and use of private key. For the light wallet mode used in mobile terminal wallet, the security of user terminal private key storage is a very core and key problem. If the design is improper, it may lead to the loss of private key and the theft of assets
Jaxx is another well-known mobile cryptocurrency wallet, which has a large number of functions, including supporting multiple currency types, as well as the recently added digital currency exchange platform, allowing users to exchange bitcoin, Ethernet and erc20 tokens in the wallet
when we check the data backup mechanism of Jaxx, we find a major security vulnerability, which is more serious than bitcoin wallet. In fact, the private key stored in Jaxx can be stolen by hackers with little effort
to ask a question, there must be a place in your original form where you can identify the currency, right? And before unifying currencies, you need to decide what your base currency is? RMB or USD or something
the information to be prepared is the exchange rate between each currency and the base currency
suppose you have only two currencies, RMB and USD, the base currency is RMB, and the exchange rate is 1usd = 7RMB
suppose the data table format is as follows
col a amount (numerical type)
col B currency
col C our target fields
column A and B are your original data, as long as you write excel function on column C
function = if (B1 = & quot; USD", A1 * 7, A1)
the sorting is nothing special, just the same as before. Excel sorting is not automatic, it is triggered manually, so if you want to sort, go to data - & gt; sort
: China dream shede Group Co., Ltd., registered in Hong Kong, After investigation, it has been cancelled in June, 18, and has no business activities since its registration. TIANCHAO Network Technology Co., Ltd., registered in Shanghai, has a registered capital of only 2 million yuan. Since 2016, it has no relevant financial statements and tax payment records. It is a leather bag company. The website of blockchain company is Io terminated and belongs to the domain name of British Indian Ocean. The maintenance fee is only a few hundred yuan a year
behind the high returns, there are opportunities to kill. Please think twice before you act. If you have invested, I will not say