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2013 (Vol. 6, Issue: 23)
Article Information:

Quantum Encoder and Decoder for Secret Key Distribution with Check Bits

T. Godhavari and N.R. Alamelu
Corresponding Author:  T. Godhavari 

Key words:  Check bits, quantum decryption, quantum encryption, quantum gates, , ,
Vol. 6 , (23): 4381-4386
Submitted Accepted Published
January 31, 2013 May 08, 2013 December 15, 2013

The focus of this study is to develop a novel method of encoding the qubits and use as secret key in public key cryptography. In BB 84 protocol, 50% of the random number (generated at source) is used as secret key and the remaining bits are used as “check bits”. The check bits are used to detect the presence of eve as well as the nature of quantum channels. In this protocol, random qubits are encoded using different type of polarizations like horizontal, veritical and diagonal. In the proposed quantum encoder, basic quantum gates are used to encode the random secret key along with the check bits. Quantum key distribution, (a cryptographic mechanism) relies on the inherent randomness of quantum mechanics and serves as an option to replace techniques made vulnerable by quantum computing. However, it is still subject to clever forms of eavesdropping and poses a significant challenge to implementation. To study the challenges, quantum circuits are first simulated using QCAD.
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  Cite this Reference:
T. Godhavari and N.R. Alamelu, 2013. Quantum Encoder and Decoder for Secret Key Distribution with Check Bits.  Research Journal of Applied Sciences, Engineering and Technology, 6(23): 4381-4386.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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