New quantum encryption technology created

[ИнфоПоиск]

“The Toshiba research laboratory in Cambridge announced the development of a new quantum data encryption technology that can be deployed to protect critical data in the communication networks of banks, government and commercial institutions. It is reported that a new method of distributing quantum keys was involved in the development of Toshiba. ” Let us explain that modern encryption methods “mix” data using a specific algorithm. This algorithm (“key”) can be “opened” for a certain time, the duration of which is determined by the power of the computer used and the “opening” procedure (they try to optimize it in order to reduce the number of operations and thereby speed up the iteration process). Quantum encryption eliminates the possibility of using traditional methods of "tampering", so it can be considered absolutely reliable. The company that offered the first commercial product called "quantum encryption" will actually become the "king of the market." “Toshiba’s Cambridge Research Lab has demonstrated the ability to transmit quantum key bits over 50 km at speeds in excess of 1 Mbps. Quantum cryptography systems are built according to the so-called one-time notepad scheme, in which the plain text of the message is combined with a random key that matches the length of the given message and is used only once. The advantage of quantum systems is that they allow the detection of interceptor activity and thereby guarantee the security of transmission. When using such systems in practice, the propagation speed of quantum keys is of great importance. The value of 1 Mbit / s achieved by researchers using a 50-kilometer fiber-optic communication line already allows encrypting the transmission of video signals; in addition, the new installation worked in continuous mode for as long as 36 hours, far ahead of the previously presented samples, which at a comparable speed withstood only several minutes. The company describes the technology in detail in the latest issue of Applied Physics Letters. The article says that the technology relies entirely on existing developments, so network operators will not have to spend money on significant upgrades. The company calls the significant advantages of development a high speed system, the ability to work with a continuous data stream, as well as the ability to transmit over long distances. “We still have a lot to do before the new technology is available commercially, but today we are demonstrating a fully completed technical concept,” said Andrew Shields, Research Director, Toshiba Research Europe. ” Source: [DLMURL] https://www.securitylab.ru/news/393133.php [/ DLMURL]

 

[Матушкин Андрей Николаевич]

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