Power data encryption method and device and terminal

• Main Authors: WANG XINYING, SHAO XUQIANG, SUN SISI, CHEN XI, WU JUNYING, XIN RUI, LIU MINGSHUO, CHANG YONGJUAN, ZHENG TAO, ZHANG XIAOJIE, ZHAO MENGYAO, KANG ZHIZENG, YANG LIPING
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention is suitable for the technical field of encryption, and provides a power data encryption method and device and a terminal. The method comprises the following steps: acquiring a Sudoku disk with a preset size and target power data; selecting a Sudoku number at a random position on the Sudoku disk as a first-digit Sudoku number, and calculating a first-digit key number based on the position information and the numerical value of the first-digit Sudoku number; based on the current bit key number and the position information and numerical values of the current bit independent number, determining a next bit independent number and a next bit key number; calculating the (N+i)th key number according to the position information and numerical values of the ith key number and the (N+i)th independent number; generating a first key and a second key; and performing triple DES encryption on the target power data based on the first key and the second key. According to the method, the secret key has high security