Quantum Cryptography
QUANTUM CRYPTOGRAPHY
Arka Deb, Nagaraja.H, Noor Afshan Fathima
III sem Computer Science and Engineering
P E S College of Engineering Mandya, India. mr.arkadeb@rediffmail.com afshan.shokath@gmail.com nagraj.hpk@gmail.com
Keywords— Cryptography, Quantum Cryptography, Photons, Polarization, Key.
I. Introduction Privacy is paramount when communicating sensitive information, and humans have invented some unusual ways to encode their conversations. Quantum cryptography describes the use of quantum mechanical effects (in particular quantum communication and quantum computation) to perform cryptographic tasks or to break cryptographic systems. The goal of quantum cryptology is to thwart attempts by a third party to eavesdrop on the encrypted message.
II. QUANTUM CRYPTOGRAPHY Cryptology is the process of encoding (cryptography) and decoding (crypto analysis) information or messages (called plaintext). All of these processes combined are cryptology. Earlier cryptology was based on algorithms -- a mathematical process or procedure which were created by a sender and transmitted to a receiver. These algorithms are used in conjunction with a key, a collection of bits (usually numbers). Without the proper key, it 's virtually impossible to decipher an encoded message, even if you know what algorithm to use. In modern cryptology, the third party (adversaries) can passively intercept sender and receiver’s encrypted message -- he can get his hands on the encrypted message and work to decode it without the sender and receiver knowing he has their message. The adversary can accomplish this in different ways, such as wiretapping sender or receiver’s phone or reading secure e-mails. Quantum cryptology is the first cryptology that safeguards against passive interception as photons come into play. Since we can 't measure a photon without affecting its behaviour, Heisenberg 's Uncertainty Principle emerges when the third
Arka Deb, Nagaraja.H, Noor Afshan Fathima
III sem Computer Science and Engineering
P E S College of Engineering Mandya, India. mr.arkadeb@rediffmail.com afshan.shokath@gmail.com nagraj.hpk@gmail.com
Keywords— Cryptography, Quantum Cryptography, Photons, Polarization, Key.
I. Introduction Privacy is paramount when communicating sensitive information, and humans have invented some unusual ways to encode their conversations. Quantum cryptography describes the use of quantum mechanical effects (in particular quantum communication and quantum computation) to perform cryptographic tasks or to break cryptographic systems. The goal of quantum cryptology is to thwart attempts by a third party to eavesdrop on the encrypted message.
II. QUANTUM CRYPTOGRAPHY Cryptology is the process of encoding (cryptography) and decoding (crypto analysis) information or messages (called plaintext). All of these processes combined are cryptology. Earlier cryptology was based on algorithms -- a mathematical process or procedure which were created by a sender and transmitted to a receiver. These algorithms are used in conjunction with a key, a collection of bits (usually numbers). Without the proper key, it 's virtually impossible to decipher an encoded message, even if you know what algorithm to use. In modern cryptology, the third party (adversaries) can passively intercept sender and receiver’s encrypted message -- he can get his hands on the encrypted message and work to decode it without the sender and receiver knowing he has their message. The adversary can accomplish this in different ways, such as wiretapping sender or receiver’s phone or reading secure e-mails. Quantum cryptology is the first cryptology that safeguards against passive interception as photons come into play. Since we can 't measure a photon without affecting its behaviour, Heisenberg 's Uncertainty Principle emerges when the third
References: 1] Security of continuous variable quantum key distribution- A. Leverrier, E. Karpov, P. Grangier and N.J. Cerf J. 2] Optical Networking for Quantum key Distribution and Quantum Communication.- T.E Chapuran, N.A. Peter, Jackle and M.S. Goodman. 3] Engineering Physics-P Basavaraju 4] Wikipedia 5] www.howstuffworks.com