# Quantum Computers Will Kill Crypto-Currencies? Bitcoin, Ethereum, Monero – others news and facts

The term &ldquo,quantum pc&rdquo, has appeared long before the appearance of crypto-currencies. The American theoretical physicist and Nobel laureate Richard Feynman wasgoed the very first to use this term te 1982, but for a long time it remained the theory only.

However, ter latest years, such technology giants spil Google and IBM, and due to the unofficial information, some countries&rsquo, governments and intelligence agencies, commenced to practically realize the theory of quantum computing. Gegevens encryption is widely used te our informational society &ndash, everyone wants his private information remain confidential while passing through the communication channels of local or global networks.

### A Little Bit About Encryption and Cryptography

People pay big attention to the gegevens protection. The evidence is the fact that the largest ter the world number of the licenses (450 million copies) were sold for using the program that realizes the algorithm of encryption with public key – RSA, called after its authors &ndash, American mathematicians Ron Rivest, Adi Shamir, and Leonard Adleman – since the term of patent ended te 2000. This algorithm uses two types of keys &ndash, public and closed. To get a closed key illegally, one can attempt to factorize a public key. However, modern classic computers will process a 250-bit number during hundreds of thousands years, and the time needed for factorizing 1000-bit number exceeds the period of universe existence.

By the similar cryptographic methods, using various hash algorithms, crypto-currencies are protected. Te the system of Bitcoin and majority of crypto-currencies the algorithm SHA-256 is used, Litecoin uses Scrypt, Dash uses the combination of eleven hash-functions that are called Х11 algorithm. That is why crypto-currencies remain safe till the safety will be assured by the methods they are based on.

### What Is Quantum Pc?

The basic unit of quantum calculation is q-bit, or quantum bit. Q-bit can have two conditions (0 and 1) same spil ordinary bit, but this is only the calculation of physical condition which forms this bit. But before this, a bit is ter thesis two states at the same time, and ter the indefinite number of conditions that is formed by its superposition. To waterput it simply, this permits quantum computers to process calculations that largely excess the potential of classic computers.

The very first quantum laptop has appeared ter 2013, it wasgoed developed by the Canadian company D-Wave. Despite the fact that many specialists doubted its functionality, the Google representatives confirmed that this rekentuig is enormously effective for the particular type of calculations. Technological giant has purchased a working prototype and tested it during a long period of time. The results of the testing were published te the form of scientific work.

Ter spring this year the company IBM launched its cloud service for calculations on the onderstel of five q-bit quantum laptop, free for researchers. IBM representatives believe that the future of quantum technologies lies ter the free access of any rekentuig to the quantum machines for any types of calculations through the cloud services. Since it is hardly possible to make the quantum technology accessible for mass production te the near future.

### The Hidden Threat?

Wij may assume that quantum computers can theoretically ruin the existing systems of encryption. Some experts confirm thesis assumptions. Thesis are Andersen Chang, who works ter the sphere of British cyber-security, and professor Martin Tomlinson, the Head of the Communication Engineering Department of Plymouth University &ndash, according the Newsweek resource. Tomlinson is very point-blank about the future of Bitcoin and other crypto-currencies and considers them fated, since the utter quantum rekentuig will be able to calculate the private key from the public one during several minutes. But he didn&rsquo,t say when such a powerful calculating contraption emerges.

However, the methods of gegevens encryption forge ahead, there are already cryptographic standards that are able to protect crypto-currencies from quantum computers. It is only the matter of time when they will be included into the protocol of the corresponding systems. Let us hope that developers won&rsquo,t delay this and our crypto-wallets will be protected, when the quantum technic with yam-sized calculating power emerges.