Multi-cast Key Distribution: Scalable, Dynamic and Provably Secure Construction

Author(s):  
Kazuki Yoneyama ◽  
Reo Yoshida ◽  
Yuto Kawahara ◽  
Tetsutaro Kobayashi ◽  
Hitoshi Fuji ◽  
...  
2017 ◽  
Vol 17 (5) ◽  
pp. 513-532
Author(s):  
Kazuki Yoneyama ◽  
Reo Yoshida ◽  
Yuto Kawahara ◽  
Tetsutaro Kobayashi ◽  
Hitoshi Fuji ◽  
...  

Author(s):  
Rob Jerdonek ◽  
Peter Honeyman ◽  
Kevin Coffman ◽  
Jim Rees ◽  
Kip Wheeler

2017 ◽  
Vol 3 (11) ◽  
pp. e1701491 ◽  
Author(s):  
Nurul T. Islam ◽  
Charles Ci Wen Lim ◽  
Clinton Cahall ◽  
Jungsang Kim ◽  
Daniel J. Gauthier

Author(s):  
Ronald Sadlier ◽  
Travis S. Humble ◽  
Venkateswara R. Dasari ◽  
Billy E. Geerhart

2006 ◽  
Vol 154 (2) ◽  
pp. 270-276 ◽  
Author(s):  
Régis Dupont ◽  
Andreas Enge

2007 ◽  
Vol 7 (5&6) ◽  
pp. 431-458
Author(s):  
H.-K. Lo ◽  
J. Preskill

We prove the security of the Bennett-Brassard (BB84) quantum key distribution protocol in the case where the key information is encoded in the relative phase of a coherent-state reference pulse and a weak coherent-state signal pulse, as in some practical implementations of the protocol. In contrast to previous work, our proof applies even if the eavesdropper knows the phase of the reference pulse, provided that this phase is not modulated by the source, and even if the reference pulse is bright. The proof also applies to the case where the key is encoded in the photon polarization of a weak coherent-state pulse with a known phase, but only if the phases of the four BB84 signal states are judiciously chosen. The achievable key generation rate scales quadratically with the transmission in the channel, just as for BB84 with phase-randomized weak coherent-state signals (when decoy states are not used). For the case where the phase of the reference pulse is strongly modulated by the source, we exhibit an explicit attack that allows the eavesdropper to learn every key bit in a parameter regime where a protocol using phase-randomized signals is provably secure.


2015 ◽  
Vol 9 (3) ◽  
pp. 163-168 ◽  
Author(s):  
Boris Korzh ◽  
Charles Ci Wen Lim ◽  
Raphael Houlmann ◽  
Nicolas Gisin ◽  
Ming Jun Li ◽  
...  

2007 ◽  
Vol 4 (1) ◽  
pp. 71-80 ◽  
Author(s):  
Tzonelih Hwang ◽  
Kuo-chang Lee ◽  
Chuan-ming Li

Sign in / Sign up

Export Citation Format

Share Document