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A team of researchers led by Professors Pan Jianwei and Zhang Qiang from the University of Science and Technology of China (USTC) The Chinese Academy of Sciences, published in the journal PNAS the results of its work on creating a public service for generating random numbers based on quantum methods. This discovery has important implications for cryptography, the lottery industry, and social welfare.
The zero-disclosure cryptographic tool (ZKP) allows you to verify the validity of data between parties who do not trust each other, without disclosing unnecessary information. Its variant, non-interacting zero disclosure of information (NIZKP), does not require multiple information exchanges, which makes it popular in digital signatures, blockchains, and identity authentication.
The main problem with NIZKP is the difficulty of generating truly random numbers, which are often replaced by deterministic pseudorandom algorithms. This creates potential security vulnerabilities. The solution was to develop a public service system based on device-independent quantum random number generators (DIQRNG), using post-quantum cryptography for authentication.
The DIQRNG system allows you to broadcast generated random numbers in real time, ensuring their security during the broadcast process. For this purpose, a quantum secure signature algorithm was used, which is able to resist quantum attacks and guarantee the integrity and authenticity of random numbers during transmission.
Using the obtained random numbers, the scientists designed and experimentally tested the more secure NIZKP protocol. This significantly improved the security of the method.
The study is the first to combine three different fields: quantum non-locality, quantum-secure algorithms, and zero-disclosure, which significantly improves the security of ZKP.
In the future, with the development of quantum technologies, new innovative solutions based on the principles of quantum mechanics are expected to appear, which will provide strong support in solving information security problems.
The zero-disclosure cryptographic tool (ZKP) allows you to verify the validity of data between parties who do not trust each other, without disclosing unnecessary information. Its variant, non-interacting zero disclosure of information (NIZKP), does not require multiple information exchanges, which makes it popular in digital signatures, blockchains, and identity authentication.
The main problem with NIZKP is the difficulty of generating truly random numbers, which are often replaced by deterministic pseudorandom algorithms. This creates potential security vulnerabilities. The solution was to develop a public service system based on device-independent quantum random number generators (DIQRNG), using post-quantum cryptography for authentication.
The DIQRNG system allows you to broadcast generated random numbers in real time, ensuring their security during the broadcast process. For this purpose, a quantum secure signature algorithm was used, which is able to resist quantum attacks and guarantee the integrity and authenticity of random numbers during transmission.
Using the obtained random numbers, the scientists designed and experimentally tested the more secure NIZKP protocol. This significantly improved the security of the method.
The study is the first to combine three different fields: quantum non-locality, quantum-secure algorithms, and zero-disclosure, which significantly improves the security of ZKP.
In the future, with the development of quantum technologies, new innovative solutions based on the principles of quantum mechanics are expected to appear, which will provide strong support in solving information security problems.