Block chain protecting privacy, we really need it?
1, privacy is a very modern thing
There is often a topic of discussion, called "loss of privacy in the Internet popularity of mankind." But if you get to know the life history of the West for thousands of years, you will find "privacy" is a very modern thing.
Roman writer Pliny the Elder depicted in his book "Natural History" into: "Zhe Bule is so rich, he can not hide the prince's mansion to open doors, bedroom and private apartments glance, all the deep secrets. has therefore been exposed and demonstrated before the crowd. "the popular medieval bedside party, the bed was a social gathering place, the owner, guests and even the servants would sleep in a bed.
? Until 1770, the then US President John Adams as private voice, he said: "I have no moral or other obligation to publicly my personal expenses or income annually to the outside world." The United States also issued the "1710 first of Privacy Act Post Office Act, "prohibits post office staff split personal letters, this provision seems today even granted to the ridiculous.
Another invention is a human connecting telephone, when the popularity of the first telephone line surprisingly expensive. So people will choose to neighbors and public synthetic line. This means that, as long as they are willing and ready to "listen" to your little secret on the phone, in fact, such an accident also occurred.
We can see that with the development of buildings, mail, telephone and other technology, the concept of privacy is constantly extension. But human beings for the privacy of the demand will always lag behind the demand for the convenience of new technology can bring. Internet is also true, although the European Union in 1995 promulgated the "Data Protection Directive", but it is just a command, and there is no strong effect. Until May 25, 2018, twenty years later, "General Data Protection Regulation" was formally implemented, it is considered to be the strongest laws for the protection of personal data and privacy of the residents.
2, to see the need for privacy from the spoof game
So much is not carried out for the historical acts of invasion of privacy of Internet giant defense, but would like to explore a problem, now and in the foreseeable future, to what extent do we need privacy? Also as a block chain of media reporters, we have to focus a little more, talk about the level of demand for privacy currency is like?
Everyone in the school, have not played a game spoof, called "time, place, characters, events," rules of the game is that each person write down each of these four elements, and then together constitute a word. For example: full moon night men pots Friends of currency speculation in the sea, just look at each word are normal, together like a mysterious ritual of the unspeakable. And I want to say is that these four elements precisely reflect our core needs for privacy.
First time, I always felt that modern human society for panic invasion of privacy, and more hanging over his head from the sword of Damocles, what does that mean? Advent of the Internet and big data era, so that all our actions can more easily be ex post facto, this is very scary. You recall once tore down how many journal articles, is not particularly do not want to look into some of his past actions and thoughts? This fact shows that we are growing, but also reflects a demand, is the "right to be forgotten."
It asked the European Union as early as 1995 in the relevant data protection laws in the concept of "right to be forgotten", and then starting in 2012 recommended the development of law, until May 13, 2014 ruled that the privacy of ordinary citizens have a "right to be forgotten" and then demand similar to Google's search engine giants such, must be in accordance with the requirements of the parties involved deletion of personal privacy data.
Second place, now we walk micro-letter sports record, there are commuter taxi drops record, long-distance travel by plane, train there the same way, eLong record, we get the convenience of using GPS while it is also being acquired data. But on privacy protection in this area also received increasing attention.
My strongest impression on the GPS from the anime "Detective Conan" Conan often with chewing gum stuck to the positioning device to track objects in the car, and then stepping on his skateboard track. But in fact, according to Japanese law, Conan this behavior is illegal.
March 15, 2017, the Japanese Supreme Court for the first time without obtaining a court warrant and searched using GPS to detect illegal acts of judgment, that is, reconnaissance personnel in order to achieve the object without the knowledge of the GPS terminal installed in the investigation on the subject vehicle, according to car GPS or cell phone GPS positioning function, obtain location information to determine the whereabouts of investigative techniques.
Finally, people and events, we can finally talk about the digital encryption technology based on block chain currency. Block chain for accurate recording time there is a strong demand, why we have the concept of time-stamped, of course, time is not here and the concept of physical time, but the order of the transaction. And the location is not within the scope of the chain block, which is a physical data, but also the link data. Explain an address block chain system is not above our physical "place", and belongs to the "People" category, because it is equivalent to a traditional account.
3, block chain solutions privacy
Focus block chain privacy program that characters and events, we are more familiar with the term privacy is identity and transaction privacy. Identity privacy refers to the relationship between the user identity information and address block chain, transaction privacy refers to the fact that the block chain stores transaction records and transaction records behind.
Bitcoin currency is being developed as an anonymous encryption, but it is not completely anonymous. Others do not know your real name, still through a variety of related transaction information to yourself. On the Bitcoin network transaction, you will leave "the chain of information" and "Chain of information", the former can take your information with others associated with the transaction, which can reveal your identity.
So Zcash, Monero, based on Mimblewimble of Grin and Beam have emerged, although their technology is different, but the main goal is to cut off the "Contact."
Zcash is created by zk-SNARKs technology, Eli Ben-Sasson, who further developed zk-SNARKs technology on the basis of the zero-knowledge proof, it allows people to simple and non-interactive proof that they know certain information without disclose the specific content.
Monero using a ring signature, by building Kovri to support the protection of privacy in the packet routing, users can hide their location and IP address. The key feature of Mimblewimble is no public address and fully privatized.
4, how much privacy we need?
After a brief introduction, we do not worry about these technologies, relying solely on common sense to think about life scenes: To what extent do we need privacy?
I married male colleagues gave me some ideas, he said: "I do not want the water to be seen on the one hand a third party, on the other hand want to store or payee to protect their essential information, such as go out and treat when cigarettes. "I asked him, bill is not enough to meet your needs? He said its not convenient to carry, and the risk of being turned wallet.
If that is the central bank of digital currency it? Mu Changchun in getting Libra sharing expressly stated that: "The public demand anonymous payment, but now with the traditional payment tools are tightly bound to the bank account system, the central bank digital currency is the digital cash, both to maintain the main value of the properties and characteristics of cash, but also to meet the requirements of portable and anonymous. "
From this point of cut, I believe that the general public needs for privacy in fact divided into two categories: First, the event itself is legal, compliance, fair and reasonable, but they want to be a little transparent, hidden in the flood of information. For example, you can get all the pieces of the travel records, and provide better service by means of big data, but do not clearly outline my own path, my personal study habits, ulterior motives pushing advertising.
Second, the event itself is not legitimate, non-compliance, substandard conditions, unreasonable, so I do not want to let others know that this is what I do, and there's no way for me to punish, such as running, money laundering, tax evasion, black market. I think that this demand will never be allowed to regulation, can not become the mainstream of the market, and therefore not within the scope of the discussion.
So I would like to ask for privacy needs first category of transactions, what percentage is the central bank of digital currency to meet? What percent of Bitcoin can be satisfied? How much money left for other private space there?