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Quantum cryptography is a field of study that combines the principles of quantum mechanics and cryptography to provide a secure communication system. In today's world where information and data are the most valuable assets, the security of communication systems has become a top priority. Traditional cryptographic methods, such as the use of encryption algorithms, are vulnerable to attacks from powerful computers and sophisticated hacking techniques. However, quantum cryptography offers a new approach to secure communication that is based on the fundamental principles of quantum mechanics. The basic principle behind quantum cryptography is that a quantum system cannot be measured or manipulated without altering the state of the system. This property is known as the principle of quantum uncertainty and it forms the foundation of quantum cryptography. In a quantum cryptography system, a sender and a receiver use a shared secret key to encode and decode messages. This key is generated