The private key determines the ownership of the blockchain asset, and the loss of the private key is equivalent to the loss of everything.
When it comes to digital payment system s, security is a topic that can never be bypassed.

Safety is in, money is in!
Poor security, money is risky!
No safety, no money!

Today, we will analyze how to ensure security from the perspective of the private key, a corner of the digital payment system security field.

First, the private key needs to be sufficiently random. The private key is actually a random number, but the concept space of this random number is relatively large - 256th power of 2. The private key is typically generated randomly by the payment system . What we want to emphasize is that the generation process of the random number of the payment system must be really random, which is very important.

Computer-generated random numbers are generally called pseudo-random because they have a deterministic algorithm that works with a seed (such as time) to produce some seemingly random results, but in reality anyone can master the algorithm and master the seed. It is possible to get the same result, which means that it is predictable. For example, bitcoin, there are 256 powers of 2 small drawers in the universe, generating a bitcoin private key, which is to randomly select a drawer to put money in.
Because this number is large enough, all the people on the planet generate a private key every second and will not repeat, so this mechanism is relatively safe. At the end of 2014, there was a serious random number problem in a version upgrade in Bitcoin payment system blockchain.info, the loss of coins was caused by the repeated R value. It was quickly discovered by a white hat hacker and the problem was fixed two and a half hours later. However, during this 2.5 hours, more than 200 bitcoins with more than one thousand addresses were lost, so the random number is a "lifeblood" in the blockchain.

Second, the private key is not connected to the Internet. Because now hackers are almost pervasive. Not mention that our civilian systems and construction, just like the US military's very strict security system, and some hackers can even enter. Therefore, in order to truly achieve complete security, it must be not connected to the Internet, and it is not connected to the Internet from beginning to end.

Tark payment system has the advantage of offline signature, avoiding private key connecting the network and reducing the risk of theft. Each transaction involves the issue of signature confirmation. The Tark payment system user holds the private key, and the transaction is not connected to the private key. The transaction is more secure. Tark payment system automatically opens the never-connecting the network mode during idle use, builds transactions and signatures at the cold end, and broadcasts transactions at the hot-end network, creating a strong protection shield for the token assets, completely eradicating network hacking and resisting asset risks caused by various reasons.

Third, the private key cannot be lost. Loss of private keys is the cause of the most loss of assets. The private key is to be copied on paper, to be copied correctly, and then placed in a place that will never be forgotten. And don't put the private key and payment system together.

As mentioned in the opening paragraph, the private key is only a small part of the digital payment system security field. Tark payment system 's efforts in security construction have never been relaxed - the world's first dual-form cold payment system security protection model to protect the user's token assets; with advanced technology that surpasses the global main stream token asset payment system , the introduction of Silicon Valley's Top technological Innovation and Research and Development of Multi-person Cooperative Management function in the United States, greatly reducing the safety factor of the risk of the user's token assets.