  With the ever-growing concern for internet security, the field of quantum
cryptography emerges as a promising solution for enhancing the security of
networking systems. In this paper, 20 notable papers from leading conferences
and journals are reviewed and categorized based on their focus on various
aspects of quantum cryptography, including key distribution, quantum bit
commitment, post quantum cryptography, and counterfactual quantum key
distribution. The paper explores the motivations and challenges of employing
quantum cryptography, addressing security and privacy concerns along with
existing solutions. Secure key distribution, a critical component in ensuring
the confidentiality and integrity of transmitted information over a network, is
emphasized in the discussion. The survey examines the potential of quantum
cryptography to enable secure key exchange between parties, even when faced
with eavesdropping, and other applications of quantum cryptography.
Additionally, the paper analyzes the methodologies, findings, and limitations
of each reviewed study, pinpointing trends such as the increasing focus on
practical implementation of quantum cryptography protocols and the growing
interest in postquantum cryptography research. Furthermore, the survey
identifies challenges and open research questions, including the need for more
efficient quantum repeater networks, improved security proofs for continuous
variable quantum key distribution, and the development of quantum resistant
cryptographic algorithms.
