Title:
ENCRYPTION AND DECRYPTION SYSTEM AND OPERATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/082820
Kind Code:
A1
Abstract:
Disclosed are an encryption and decryption system and an operation method therefor, comprising a key chip, a ciphertext chip, a random number generator, and a peripheral circuit, wherein the peripheral circuit consists of a controller, a read-write circuit, a signal amplifier, and an address encoding circuit. Before encryption, the random number generator generates a random signal to be written into the key chip; during encryption, plaintext data is first written into the ciphertext chip, and then the plaintext data is associated with a partial unit as a key in the key chip in address; a key signal is applied to a plaintext data unit for encryption calculation, i.e., data encryption is completed; during decryption, the key in the key chip is read to be subjected to decryption calculation with the ciphertext in the ciphertext chip, i.e., data decryption is completed. The key chip maintains an offline state in the whole process. In the present invention, a resistance state is used as the key, the plaintext data is encrypted on the basis of hardware, original data is covered, and the key is stored offline, thereby improving the security of information storage and saving power consumption and time delay.
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Inventors:
LI YI (CN)
MIAO XIANGSHUI (CN)
CHENG LONG (CN)
MIAO XIANGSHUI (CN)
CHENG LONG (CN)
Application Number:
PCT/CN2019/095682
Publication Date:
April 30, 2020
Filing Date:
July 12, 2019
Export Citation:
Assignee:
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
H04L9/06
Foreign References:
| CN109359486A | 2019-02-19 | |||
| CN106656475A | 2017-05-10 | |||
| CN101001142A | 2007-07-18 | |||
| US20080130881A1 | 2008-06-05 |
Other References:
刘政林等 (LIU, ZHENGLIN ET AL.): "安全加密微处理器结构与设计 (Architecture and Design of a Secure Encrypted Microprocessor)", 华中科技大学学报(自然科学版) (JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY (NATURE SCIENCE EDITION)), vol. 38, no. 8, 31 August 2010 (2010-08-31)
樊勇等 (FAN, YONG ET AL.): "基于智能IC卡的高速流加密系统研究 (Research of High-Speed Stream Encryption System Base on Smart IC Card)", 微电子学与计算机 (MICROELECTRONICS & COMPUTER), vol. 30, no. 4, 30 April 2013 (2013-04-30)
HUANG, YILI: "A Random Wrapping Encryption Method", IEEE CONSUMER COMMUNICATIONS AND NETWORKING CONFERENCE (CCNC 2014): MOBILITY MANAGEMENT IN THE NETWORKS OF THE FUTURE WORLD, 31 December 2014 (2014-12-31), XP032626046
樊勇等 (FAN, YONG ET AL.): "基于智能IC卡的高速流加密系统研究 (Research of High-Speed Stream Encryption System Base on Smart IC Card)", 微电子学与计算机 (MICROELECTRONICS & COMPUTER), vol. 30, no. 4, 30 April 2013 (2013-04-30)
HUANG, YILI: "A Random Wrapping Encryption Method", IEEE CONSUMER COMMUNICATIONS AND NETWORKING CONFERENCE (CCNC 2014): MOBILITY MANAGEMENT IN THE NETWORKS OF THE FUTURE WORLD, 31 December 2014 (2014-12-31), XP032626046
Attorney, Agent or Firm:
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY PATENT AGENCY CENTER (CN)
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