چكيده به لاتين
Abstract:
The main purpose of cryptography is to transfer information securely. Quantum cryptography is one of the cryptographic branches that makes it possible to perform various encryption operations that are impossible with classical exchanges.
Most of the secret sharing schemes, such as the Zhang and Dang schemes, that are reviewed in the third chapter, To control the security of the communication channel, the presence or absence of a listener is used to measure the main photons of the interlaced modes of transmission, This will reduce the security of the project and, if one of the shareholders intends to disrupt, it will easily be able to know the type of photon used by other shareholders and the basis for measuring them. In this thesis, with the introduction of the idea of decoy photon, it can be used to some extent to secure of schemes.In the DLZ and ZLLDZ quantum secret schemes that will be presented in the final chapters, the idea of decoy photon is used, and in security checking, the differences in these schemes with schemes that only use the main photons to control security, are completely Characterized.
Keywords: Quantum cryptography, Quantum Secret Sharing, decoy photon, entangled states, security
