Quantum Entangled Quantum Signature Scheme And Multi-quantum Agent Signature

As an important branch of cryptography,digital signature plays an important role in the field of information security.Due to the nature of non-forgery and non-repudiation,digital signatures are widely used in relevant fields including identity authentication and data integrity detection.For example,electronic commerce,electronic voting,electronic wallet and so on.However,with the rapid development of science and technology,classical digital signatures based on the complexity of solving mathematical problems are not only threatened by supercomputers,but also by quantum computers,which have brought unprecedented crisis to digital signatures.Digital signatures had to be designed in a more secure way before quantum computers came along.The signature scheme based on quantum bit is a new subject formed by the fusion of quantum mechanics and classical signature,and its theoretical unconditional security can be guaranteed by the properties of quantum mechanics.Among the proposed quantum signature schemes,quantum entanglement is one of the most widely used resources.By using the entanglement coherence of entangled states,secure and efficient signature schemes can be designed.This article will combine multiple properties of proxy signature,proxy signature and the traditional digital signature scheme mainly depends on the various mathematical problems to ensure its security,but with the continuous development of science and technology,the traditional digital signature scheme is easy to damage,the security of the traditional digital signature technology has received the serious challenge.In order to solve the negative effects and problems of the traditional signature scheme,the theory of quantum cryptography came into being.Because of its unconditional safety characteristics,it has been unanimously supported by the majority of scientific researchers and has been widely used.Quantum signature technology is a product of quantum cryptography and a branch of quantum cryptography,which uses quantum mechanics to improve the security of quantum digital signature system.A series of quantum signature protocols are designed by combining quantum encryption with digital signature technology.These protocols have been proved to have strong security in theory and can be widely used in the future development of e-commerce and other fields.As a new interdisciplinary subject,quantum signature is of great significance to the development of information security in China.In this paper,pay close attention to the use of advanced materials in the field of quantum mechanics knowledge of quantum coding,and use different methods to design a variety of quantum proxy signature protocol,at the same time in the details of the agreement,each quantum signature are pointed out the advantages and disadvantages,and aiming at the existing problem of quantum signature technology at present stage,the future of our country in the field of information security development was prospected.