Key is the basis of cryptographic security, and the quality and efficiency of key generation depend on the technology of random number generation, that is, the performance of random number generator.
"Generally speaking, the higher the random number generation rate, it means that more keys can be generated per unit time, and the real' random key distribution' can be realized, which makes people who try to steal secrets dazzled and there is no' key' available. It is difficult to quickly find the key to crack the password and steal secrets in secure communication, which has perfect security in theory." Rao Zhihong said.
Communication security is the cornerstone of national information security and economic and social activities, but how to ensure communication security is also a worldwide problem. It is generally believed in the industry that quantum secure communication technology, as an "unconditional security" means of communication security, can perfectly solve the security problems in the process of information transmission and become the core of a new generation of information network security solutions.
As one of the core devices of quantum secure communication, the development of quantum random number generator has been concerned by the industry.
Xu, one of the project leaders and a senior engineer of China Electronics Technology Group Network Security Company, said that the high-speed quantum random number generator released this time has the characteristics of "true randomness, ultra-high speed and miniaturization", and * * * has obtained five invention patents. The bit rate of its off-line output quantum random number is 3 to 4 orders of magnitude higher than that of the traditional technology, which is at the international leading level and can be widely used in quantum communication industry and information security industry.