Title:
AN ENCRYPTION ALGORITHM EMPLOYING QUANTUM TECHNOLOGY
Document Type and Number:
WIPO Patent Application WO/2021/008561
Kind Code:
A1
Abstract:
The present invention relates to the technical field of quantum encryption, and specifically relates to an encryption algorithm employing quantum technology. The algorithm comprises the following steps: step 1, configuring three sets of basis vectors; step 2, generating a binary quantum sequence and a measurement basis vector, and using combinations of three variables to respectively represent six polarization states corresponding to the measurement basis vector; step 3, encrypting information M, converting same into the binary quantum sequence, and performing re-encoding; step 4, detecting whether or not a first segment of a measurement basis sequence is a random number; step 5, if Eve is not present, performing data decryption; and step 6, if Eve is present, selecting another quantum channel. The beneficial effects are as follows: in the invention, a tilted basis having a photon polarization of α degrees relative to the horizontal plane is re-encoded and inserted into the first segment of the binary quantum sequence, such that Bob can quickly detect whether or not the information has been intercepted by an eavesdropper, thus reducing the amount of data processing. Moreover, the encryption algorithm is used to encrypt corresponding information, thus increasing the difficulty of eavesdropping and improving the security of encrypted transmission.
Inventors:
WU XUEFENG (CN)
CHEN JUNHUA (CN)
XIA MING (CN)
CHEN JUNHUA (CN)
XIA MING (CN)
Application Number:
PCT/CN2020/102156
Publication Date:
January 21, 2021
Filing Date:
July 15, 2020
Export Citation:
Assignee:
JIANGSU NANGONG TECH GROUP CO LTD (CN)
International Classes:
H04L9/08
Domestic Patent References:
| WO2018143687A1 | 2018-08-09 |
Foreign References:
| CN109936445A | 2019-06-25 | |||
| CN1384621A | 2002-12-11 | |||
| CN106712936A | 2017-05-24 |
Attorney, Agent or Firm:
NANJING RUIZHIBO INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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