Abstract
Having grown rapidly in recent years, quantum information processing arises out of an integration of quantum mechanics and information science. This field includes quantum computing and quantum cryptography. Successfully implementing quantum computers would make conventional cryptography methods obsolete. For instance, quantum computers can be used to compute secret keys during polynomial not exponential time; therefore, RSA, an encryption method, would be easily made obsolete. The same is true for key distribution. Individuals using conventional key distribution methods would have their messages easily decrypted by eavesdroppers using quantum computers. So, in this paper, an integrated model for quantum key distribution using BB84 model is developed to ensure secure communication among users. The concept of session key is plugged in the proposed communication model to assure the security and checked the accuracy by CRC(Cyclic Redundancy Check). In addition, the conventional key distribution scenario develops that each user communicates with the session keys established by the key distribution center (KDC). We propose a novel method for KDC to produce the session key in order for message communication without using master key in the star network. As anticipated, the proposed quantum cryptography protocol can provide a much securer key distribution than conventional ones can for users to ensure confidentiality of their information. Additionally, the proposed protocol can provide a valuable reference for cryptography research to enhance the security of data communication and protect important communication from eavesdropping.