Write an essay on Quantum Crytography
Page 1: explain what the public key system is and describe how it can be used to securely exchange a secret key.
Page 2: explain what a quantum computer is and describe why it is a threat to the public key system.
Page 3: explain what quantum cryptography is and describe how it can overcome the weakness of the public key system.
Page 4: in quantum cryptography (also known as quantum key distribution), explain how the encryption key is exchanged between two parties.
Page 5: describe the latest developments in quantum cryptography.
