Application diagram of virtual currency digital signature

1. The digital signature of bitcoin is an anti-counterfeiting string generated only by the transferor of bitcoin transfer. By verifying the digital string, on the one hand, it proves that the transaction is initiated by the transferor, on the other hand, it proves that the transaction information has not been changed in the transmission
digital signature shortens transaction information to a fixed length string through digital digest technology. For example, when Niuniu initiates a bitcoin transfer, it needs to first digest the transaction into a string, and then encrypt the digest with its own private key to form a digital signature. After the completion, Niuniu needs to broadcast the original (transaction information) and digital signature to the miner, and the miner uses Niuniu's public key for verification. If the verification is successful, it means that the transaction is indeed sent by Niuniu, and the information has not been changed
at the same time, the private key encrypted by digital signature is inconsistent with the public key decrypted by digital signature, so asymmetric encryption technology is adopted. It looks so complicated. In fact, you only need to input the private key to complete the transfer instantly!

2. The digital signature in bitcoin is generated by the initiator in the transaction. In order to ensure that this transaction is initiated by this person, and the data is not tampered with ring transmission. Digital signature is simply a complete transaction information, compressed into a fixed format string by digital digest technology, and then generated a private key by asymmetric encryption technology. The complete transaction information and digital signature are sent to the miner. The miner decrypts the digital signature with the public key of the transaction initiator. If the decryption is successful, the transaction data will be written into the block.

3. The differences between electronic currency and traditional currency are: Security traditional currency: easy to forge, easy to lose and be stolen when carried with you; Electronic currency: the use of modern password technology, limited to legal person use, can avoid repeated use, strong anti-counterfeiting ability, no need to carry, can rece the risk of loss and theft. Anonymity traditional currency: anonymity and untraceability; Electronic currency: digital signature, authentication and other technologies are used to ensure the anonymity and untraceability of payment transactions. Convenience traditional currency: it must be used at fixed time; Electronic currency: the payment process is not limited by time and place, so it is more convenient to use. Cost traditional currency: high cost of issue, transportation and transaction; Electronic currency: no transportation cost, low issue cost and transaction cost. Decomposing traditional currency: not decomposable; Electronic currency: the size of the cash payment unit can be defined by itself and is not limited by the actual cash system.

4. Lust Galaxy
I've played

5. "Infinite stars" is an unlimited time game, where players can control the spaceship through the entire interstellar, create their own piece of sky. Players connect to a server shared by thousands of people, and the game will not end with the withdrawal of a player, but it develops graally: This is a continuous universe, and it does not emphasize any specific game style and style. Fight, trade, explore, socialize... Everything is freely chosen by players, including career path and goal. The only limitation is imagination! This is not a traditional role-playing game. Although the player's action should be consistent with the character's motivation, it is not limited by the level and technology. The battle between spaceships is real-time, and the result is decided by the player's own wisdom and reaction ability. Put aside the fixed and passive plot, to experience the great passion of personal action.

6.

Hello, are you talking about spaceship 3D? There are many mobile games like

in app treasure. You can have a look. There are many similar mobile games like

in app treasure. I just found a lot of similar games for you, and I'll give you a screenshot of

by the way. You can have a look at the mobile games you are looking for, If

is not, you can enter keywords to continue to search, and hope to adopt after saying so much

7. Whether they are suspected of MLM depends on whether their organizers or operators require other personnel developed by the developed personnel to join through the development personnel. The remuneration of the developed personnel shall be calculated and paid according to the number of personnel developed directly or indirectly
whether the developed personnel are required to pay fees or pay fees in disguised form by way of subscribing for goods, so as to obtain the qualification of joining or developing other personnel to join
whether the developed personnel are required to develop other personnel to join, form up-to-down relationship, and calculate and pay online remuneration based on the sales performance of the following lines
those who seek illegal interests on this basis, if so, belong to MLM.

8.

If you look at the main body of the company's operation,

then look at its business scope: (it is not allowed to engage in securities investment activities; It is not allowed to raise funds in public for investment activities; It shall not engage in the management business of publicly raised funds; This has been written very clearly, what it is doing now is beyond the scope of business, is illegal< br />

9. This kind of thing also believe ah, recently the RMB appreciation, you know, also replace the RMB nonsense are made up, who told you, scold him a liar, let him go

10.

bus line: East extension of Metro Line 2 → Metro Line 2, the whole journey is about 59.4km

1. Walk about 1.6km from Shanghai Pudong International Airport to Pudong International Airport Station

2. Take east extension of Metro Line 2, pass 8 stops, and reach Guanglan Road Station

3. Take Metro Line 2, pass 20 stops, and reach Hongqiao Railway Station

4. Walk about 130m, Arrive at Shanghai Hongqiao Station