Method for generating wireless key using satellite channel

Method for generating wireless key using satellite channel

The present invention provides a method for generating a wireless key using a satellite channel. The method includes the steps that a satellite A sends a public pilot frequency sequence to a legal user B; the legal user B estimates a downlink legal channel by using the received public pilot frequenc...

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Hauptverfasser: JIN HENGLEI, CAI AOLIN, LOU YANGMING, HUANG KAIZHI, ZHONG ZHOU, CHEN YAJUN, ZHOU YOU, LIN YUDA, XU XIAOMING, JIN LIANG
Format: Patent
Sprache:chi ; eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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creator JIN HENGLEI
CAI AOLIN
LOU YANGMING
HUANG KAIZHI
ZHONG ZHOU
CHEN YAJUN
ZHOU YOU
LIN YUDA
XU XIAOMING
JIN LIANG
description The present invention provides a method for generating a wireless key using a satellite channel. The method includes the steps that a satellite A sends a public pilot frequency sequence to a legal user B; the legal user B estimates a downlink legal channel by using the received public pilot frequency sequence, and pre-codes a local private pilot frequency sequence according to the information of the downlink legal channel, and sends the private pilot frequency sequence to the satellite A; the satellite A forwards the received private pilot frequency sequence to the legal user B; the legal userB uses the received private pilot frequency sequence and the local private pilot frequency sequence to estimate the uplink legal channel, transmits a random sequence to the satellite A, and combineswith the information of the uplink legal channel to obtain a shared random source; the satellite A uses the received random sequence as a shared random source; two parties of the legal communication perform key extraction acco
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
title Method for generating wireless key using satellite channel
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