Physics – Quantum Physics
Scientific paper
2005-07-05
Physics
Quantum Physics
This paper will appear in Phys. Rev. A
Scientific paper
10.1103/PhysRevA.72.022335
This paper shall investigate Yuen protocol, so called Y-00, which can realize a randomized stream cipher with high bit rate(Gbps) for long distance(several hundreds km). The randomized stream cipher with randomization by quantum noise based on Y-00 is called quantum stream cipher in this paper, and it may have security against known plaintext attacks which has no analog with any conventional symmetric key ciphers. We present a simple cryptanalysis based on an attacker's heterodyne measurement and the quantum unambiguous measurement to make clear the strength of Y-00 in real communication. In addition, we give a design for the implementation of an intensity modulation scheme and report the experimental demonstration of 1 Gbps quantum stream cipher through 20 km long transmission line.
Fuse Masaru
Hirota Osamu
Kato Kentaro
Sohma Masaki
No associations
LandOfFree
Quantum stream cipher by Yuen 2000 protocol: Design and experiment by intensity modulation scheme does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum stream cipher by Yuen 2000 protocol: Design and experiment by intensity modulation scheme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum stream cipher by Yuen 2000 protocol: Design and experiment by intensity modulation scheme will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-59630