A Survey on Quantum Key Distribution Protocols
A Survey on Quantum Key Distribution Protocols
Jasleen Kour, Saboor Koul and Prince ZahidBaba Ghulam Shah Badshah University, India
ABSTRACT
Quantum cryptography is based on quantum mechanics to guarantee secure communication. It allows two
parties to produce a shared random bit string known only to them. These random bits can be used as a key
to encrypt and decrypt messages. The most important and unique property of quantum cryptography is the
ability of the two communicating users to detect the presence of any third party trying to gain knowledge of
the key. It is based on fundamental aspects of quantum mechanics. By using quantum entanglement or
quantum super positions and transmitting information in quantum states, a communication system can be
implemented which detects eavesdropping. Quantum cryptography is used to produce and distribute a key,
not to transmit any message data. This key along with certain encryption algorithm, is used to encrypt (and
decrypt) a message, which can then be transmitted over a standard communication channel. This paper
concentrates on comparison between classical and quantum cryptography as well as survey on various
quantum key distribution protocols used to generate and distribute the key among communicating parties.
Comments
Post a Comment