Commercial cryptographic applications blossom everywhere: deep dash of quantum e
Filed encryption technology, many people feel is very mysterious. Because, in any country, cryptography have been used as an important strategic country to protect the United States and other Western countries on the export of encryption technology to take strict control measures, more than 128 of the severe restrictions on encryption technology exports. It is in this context, China promulgated the "Regulations on Commercial Codes" (the Ordinance), the password used for commercial technology development to the fixed-point, point of production and permit Sell System. So far, China's business R & D intensive enterprises as the four fixed-point, point-producers for the 263, get close sales license business enterprises 399. "Regulations" provides that no licensed commercial enterprises dense development, production and marketing be illegal. Because of these requirements to the business technology covered with a dense veil of mystery, let the people know little about technology on the business secret.
However, the application of commercial secret and the latest technology of business secret, "regulations" does not limit, any land in the People's Republic of individuals and units can be licensed for commercial use encryption technology. Anyone can publish the latest research and findings password. This secret technology to the mysterious business, access to the widely used soil.
Deep dash of quantum cryptography The past, cryptography and more for military and foreign affairs field, with the increasing application of the economic field, and computer technology to promote, password, technology itself is undergoing rapid changes.
Held in the recent "National exhibition of achievements in commercial code" on, some experts on the latest, known not to crack the Quantum encryption technology, to bring the latest flavor industry.
What is quantum cryptography? Why is it not break? Experts explained to reporters, the so-called quantum cryptography, the principle is the use of quantum transport and difficult to recover once the characteristics of the encryption key agreement the two sides, once the quantum of light intercepted by hackers, the receiver can know and, interception of the light quantum is difficult to recover, it is difficult to be copied, to prevent the possibility of information theft. This is carried out from the physical layer encryption, in theory, this encryption is unbreakable.
Traditional encryption methods, the key means of one-way function disrupt data on the computer, the encryption is a simple operation, except the receiver of the user key, or decryption extremely difficult. However, in practice, even the most secure key in the supercomputer will be under the constant attempt to break. However, in terms of quantum encryption, regardless of how fast a computer hacker, quantum cryptography is secure because the technology to ensure safe use of the laws of physics. So, is considered the future direction of development of commercial encryption technology, the industry is actively preparing for it for business.
Internationally, the use of quantum encryption products are gradually appearing in 2005, idQuantiqueSA company released a turnkey type of quantum encryption system that allows the two Fast Ethernet (IEEE802.3u) Hacking secure channel between the 100 km length. In 2008, the Swiss general election, the Swiss Government on the use of quantum encryption technology.
In China, a company from Wuhan launched recently called quantum encryption machine, quantum encryption technology for commercial production, which makes quantum encryption technology to China embarked on a new level.
However, experts believe that quantum encryption is currently used in optical Communicate Channel, which currently is used in real-life electrical channel technology are difficult. In addition, since the quantum cryptography encryption method used is the physical, optical damage once the hacker Cable , In which the increase of a wiretapping device, quantum encryption could also be cracked. Therefore, the current number of quantum encryption technology is still in trial stage business, from large-scale commercial have a certain distance.
The emergence of quantum encryption that, in any case, the pursuit of cryptography can not solve, and is the password field is always the goal.
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