چكيده به لاتين
In this thesis , we plan to get acquainted with the without entanglement and single photon states by quantum secret sharing .
Implementing such schemes is easier than entanglement states because the particles are not dependent.
First, we will get acquainted with the semi-quantum secret sharing scheme. In this scheme, only the distributor is equipped with quantum equipment and classical shareholders. By using the encoding tables, we will checking the security of the scheme.
Then, we describe a scheme that uses unitary operators to encrypt the secret message and we show that unitary operators are the proper option for encrypting the secret message because the eavesdropping is not aware of the shareholders selected operator and particles base submitted.
Finally, we will get acquainted with the (t,n) threshold quantum secret sharing scheme and d- Dimensional quantum secret sharing scheme.To check the security of each the schemes, we use a variety of methods such as (decoy photons, hash function and etc).
In the existing quantum secret sharing schemes, the typical method of checking eavesdropping is to use decoy photons. This method is very effective to guarantee the security of particle transmission. But, it reduces the efficiency of particles because the published decoy photons cannot be used to transmit secret information. While, in schemes that use the hash function to checking eavesdropping in the communication channel, all particles can be used to transmit secret information.
Keywords: Semi-Quantum Secret Sharing, Quantum Secret Sharing, Without Entanglement, Single Photon, Unitary Operators.
