Mr. Takehisa Iwakoshi Profile

Takehisa Iwakoshi

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Publications (8)

SPIE Journal Paper | 10 December 2018 Open Access

Guessing probability under unlimited known-plaintext attack on secret keys for Y00 quantum stream cipher by quantum multiple hypotheses testing

Takehisa Iwakoshi

OE, Vol. 57, Issue 12, 126103, (December 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.12.126103

KEYWORDS: Signal detection, Probability theory, Quantum communications, Quantum physics, Interference (communication), Information security, Optical engineering, Optical communications, Quantum key distribution, Quantum computing

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Proceedings Article | 8 October 2018 Presentation + Paper

Bit-error-rate guarantee for quantum key distribution and its characteristics compared to leftover hash lemma

T. Iwakoshi

Proceedings Volume 10803, 1080309 (2018) https://doi.org/10.1117/12.2500457

KEYWORDS: Quantum key distribution, Information security, Cryptography, Quantum communications, Quantum physics, Quantum cryptography, Quantum networks, Network security, Quantum optics

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Proceedings Article | 5 October 2017 Open Access

On problems in security of quantum key distribution raised by Yuen

T. Iwakoshi

Proceedings Volume 10442, 1044203 (2017) https://doi.org/10.1117/12.2278625

KEYWORDS: Quantum networks, Quantum key distribution, Information security, Quantum cryptography, Quantum communications, Computer security, Quantum physics, Internet, Probability theory, Binary data

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Proceedings Article | 7 May 2015 Paper

Faked state attacks on realistic round robin DPS quantum key distribution systems and countermeasure

T. Iwakoshi

Proceedings Volume 9505, 950504 (2015) https://doi.org/10.1117/12.2176770

KEYWORDS: Quantum key distribution, Double positive medium, Photons, Signal detection, Information security, Sensors, Phase modulation, Superposition, Avalanche photodetectors, Continuous wave operation

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Proceedings Article | 13 October 2014 Paper

Misinterpretation of statistical distance in security of quantum key distribution shown by simulation

Takehisa Iwakoshi, Osamu Hirota

Proceedings Volume 9254, 92540L (2014) https://doi.org/10.1117/12.2068143

KEYWORDS: Probability theory, Quantum key distribution, Quantum physics, Information security, Failure analysis, Binary data, Detection theory, Computer simulations, Network security, Quantum memory

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Proceedings Article | 29 October 2013 Paper

Polarity inversion attack prevention by physical properties of Y00 quantum stream cipher

Takehisa Iwakoshi, Osamu Hirota

Proceedings Volume 8899, 88990M (2013) https://doi.org/10.1117/12.2029029

KEYWORDS: Photons, Lithium, Telecommunications, Quantum communications, Photodetectors, Receivers, Sensors, Bismuth, Signal attenuation, Signal detection

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Proceedings Article | 13 October 2011 Paper

Quantitative analysis of quantum noise masking in quantum stream cipher by intensity modulation operating at G-bit/sec data rate

Takehisa Iwakoshi, Fumio Futami, Osamu Hirota

Proceedings Volume 8189, 818915 (2011) https://doi.org/10.1117/12.897783

KEYWORDS: Modulation, Quantitative analysis, Data communications, Data acquisition, Computer security, Photonics, Defense systems, Information security, Current controlled current source, Atrial fibrillation

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Proceedings Article | 30 August 2010 Paper

Quantum stream cipher beyond the Shannon limit of symmetric key cipher and the possibility of experimental demonstration

Osamu Hirota, Takehisa Iwakoshi, Masaki Sohma, Fumio Futami

Proceedings Volume 7815, 78150P (2010) https://doi.org/10.1117/12.860117

KEYWORDS: Computer security, Network security, Quantum communications, Current controlled current source, Optical networks, Clouds, Computing systems, Data centers

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Showing 5 of 8 publications

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