Securing an optical network by quantum noise

Hirota, Osamu

doi:10.1117/2.1200909.1679

SPIE Newsroom

2009

DOI: 10.1117/2.1200909.1679

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Securing an optical network by quantum noise

Osamu Hirota¹

Abstract: A randomized stream cipher provides ultra-high-speed data encryption over long-distance channels.

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2016

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Untappable Key Distribution System: a One-Time-Pad Booster

Barbosa¹,

Graaf

2016

J. Inf. Secur. Cryptogr.

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One-time-pad (OTP) encryption simply cannot be cracked, even by a quantum computer. The need of sharing in a secure way supplies of symmetric random keys turned the method almost obsolete as a standing-alone method for fast and large volume telecommunication. Basically, this secure sharing of keys and their renewal, once exhausted, had to be done through couriers, in a slow and costly process. This paper presents a solution for this problem providing a fast and unlimited renewal of secure keys: An untappable key distribution system is presented and detailed. This fast key distribution system utilizes two layers of confidentially protection: 1) Physical noise intrinsic to the optical channel that turn the coded signals into stealth signals and 2) Privacy amplification using a bit pool of refreshed entropy run after run, to eliminate any residual information. The resulting level of security is rigorously calculated and demonstrates that the level of information an eavesdropper could obtain is completely negligible. The random bit sequences, fast and securely distributed, can be used to encrypt text, data or voice.

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Untappable Key Distribution System: a One-Time-Pad Booster

Barbosa¹,

Graaf

2016

J. Inf. Secur. Cryptogr.

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show abstract

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Securing an optical network by quantum noise

Abstract: A randomized stream cipher provides ultra-high-speed data encryption over long-distance channels.

Cited by 1 publication

References 6 publications

Untappable Key Distribution System: a One-Time-Pad Booster

Untappable Key Distribution System: a One-Time-Pad Booster

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