Skip to main content
placeholder image

Quantum Hash function and its application to privacy amplification in quantum key distribution, pseudo-random number generation and image encryption

Journal Article


Abstract


  • Quantum information and quantum computation have achieved a huge success during the last years. In this paper, we investigate the capability of quantum Hash function, which can be constructed by subtly modifying quantum walks, a famous quantum computation model. It is found that quantum Hash function can act as a hash function for the privacy amplification process of quantum key distribution systems with higher security. As a byproduct, quantum Hash function can also be used for pseudo-random number generation due to its inherent chaotic dynamics. Further we discuss the application of quantum Hash function to image encryption and propose a novel image encryption algorithm. Numerical simulations and performance comparisons show that quantum Hash function is eligible for privacy amplification in quantum key distribution, pseudo-random number generation and image encryption in terms of various hash tests and randomness tests. It extends the scope of application of quantum computation and quantum information.

UOW Authors


  •   Xu, Peng (external author)

Publication Date


  • 2016

Citation


  • Yang, Y. G., Xu, P., Yang, R., Zhou, Y. H., & Shi, W. M. (2016). Quantum Hash function and its application to privacy amplification in quantum key distribution, pseudo-random number generation and image encryption. Scientific Reports, 6. doi:10.1038/srep19788

Scopus Eid


  • 2-s2.0-84956498171

Web Of Science Accession Number


Volume


  • 6

Abstract


  • Quantum information and quantum computation have achieved a huge success during the last years. In this paper, we investigate the capability of quantum Hash function, which can be constructed by subtly modifying quantum walks, a famous quantum computation model. It is found that quantum Hash function can act as a hash function for the privacy amplification process of quantum key distribution systems with higher security. As a byproduct, quantum Hash function can also be used for pseudo-random number generation due to its inherent chaotic dynamics. Further we discuss the application of quantum Hash function to image encryption and propose a novel image encryption algorithm. Numerical simulations and performance comparisons show that quantum Hash function is eligible for privacy amplification in quantum key distribution, pseudo-random number generation and image encryption in terms of various hash tests and randomness tests. It extends the scope of application of quantum computation and quantum information.

UOW Authors


  •   Xu, Peng (external author)

Publication Date


  • 2016

Citation


  • Yang, Y. G., Xu, P., Yang, R., Zhou, Y. H., & Shi, W. M. (2016). Quantum Hash function and its application to privacy amplification in quantum key distribution, pseudo-random number generation and image encryption. Scientific Reports, 6. doi:10.1038/srep19788

Scopus Eid


  • 2-s2.0-84956498171

Web Of Science Accession Number


Volume


  • 6