In recent years, blockchain technology has swept the world in an anonymous way of recording transactions between individuals. However, the security of the blockchain network is only temporary, and it is only a matter of time before people find a way to use this coded information to break through its security.
Although quantum computing may provide some serious security cracking capabilities for hackers, the subtle nature of quantum entanglement may also provide a solution to data security by touching the past and erasing its own history.
Two researchers at Victoria University in Wellington, New Zealand have developed their own concept of quantum blockchain, which theoretically prevents anyone from interfering with your electronic books without their knowledge.
Blockchain technology is best known for its role in economic systems known as cryptocurrencies.
Where traditional pounds and dollars are linked to the state-owned banking system, payment methods such as “bitcoin†rely on decentralized encrypted trading networks.
This publicly issued "bank account" uses a set of algorithms to time-stamp a series of computers on the Internet and evaluate each currency-based exchange, which has the advantage of eliminating any human authority.
This distributed decision makes blockchain technology fully applicable to any democratic process, from an open banking system to a company without a CEO.
But this system relies on the relative transparency of the public, which also makes it vulnerable to exploitation.
Nowadays, a large number of transactions are encrypted, and even the fastest supercomputers can hardly crack this encryption in a reasonable amount of time.
But the problem is that quantum computing can change that.
By using an algorithm based on fuzzy guessing games for undetermined quantum states, computers can quickly perform operations in traditional forms of encryption.
Technology giants like Google and IBM have made great strides in this type of quantum computer. These developments are very exciting, but they also constitute a new world of risk.
Fortunately, the same phenomenon behind this technology provides a new perspective on how to get information.
The quantum properties of particles do not exist in a sense until we measure them in some way. It's like putting a glove in the box - until you see it, you don't know if it's left-handed or right-handed before.
What's even more surprising is that if that particle is associated with another particle at some point in time—like a pair of gloves being taken from the same box—you will immediately tell you when you look at an example. The state of the pairing, no matter how far apart the two objects are.
Two particles entangle each other, even if they are far apart, the behavior of one particle will affect the state of the other. When one of them is operated (for example, quantum measurement) and the state changes, the other one will immediately change the corresponding state. This phenomenon, known as "quantum entanglement," is currently being used to add signatures to the communication process to alert the user if an outsider is listening during the communication process.
This is not the first time this technology has been applied to blockchains. Last year, researchers from the Russian Quantum Center invented and tested a method of replacing traditional encryption with quantum forms.
However, there is more than one method for Schrödinger's cat, and the quantum entanglement process is not just about spatial distance.
The researchers wrote:
Perhaps even more shocking is that our coding process can be interpreted as a non-classical way to influence the past, so this decentralized quantum blockchain can be seen as a quantum network time machine.
This quantum timestamp makes it so powerful that it can build blockchains on its own, rather than just encapsulating their bytes in an encrypted socket.
Interfering with the current record on the digital book of the quantum blockchain in any way affects their own history and therefore changes the records in the past, thereby invalidating the relevant records during the digital lock process.
This theory has not been tested yet. Still, this is a new approach to quantum entanglement that ensures that blockchain technology will remain secure in the future.
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