Multifunctional offline password verification method for electronic lock

Abstract

The invention discloses a multifunctional offline password verification method of an electronic lock. The method comprises steps of generating a plaintext password according to submitted information;obtaining a system secret key in the electronic lock, wherein the plaintext password is subjected to several rounds of secret key encryption transformation according to the encryption strategy and thefour groups of eight-bit secret key values; carrying out a plurality of rounds of value transformation, a plurality of rounds of shift transformation and a plurality of rounds of column hybrid transformation to obtain a dynamic password; analyzing to obtain the plaintext password; and if the plaintext password obtained through analysis has correctness and effectiveness, unlocking by the electronic lock. Compared with the prior art, the method has the beneficial effects that the plaintext password contains the information of the password type, so that the password type information and the digital password can be obtained only by one-time analysis in the analysis process, and the analysis efficiency is improved; meanwhile, encryption is carried out through 16 times of reversible encryptionalgorithms, so that decoding is not easy, and the security performance is greatly improved; and the length of the dynamic password for unlocking is 8-9 bits, so that the dynamic password is convenientto memorize.

Description

technical field [0001] The invention relates to a password verification method for an electronic lock, in particular to a multifunctional off-line password verification method for an electronic lock. Background technique [0002] The research on electronic combination locks started in the 1930s, and has been used in some special places for a long time. The electronic lock has a large amount of keys (passwords), which can be used in conjunction with mechanical locks, and can avoid potential safety hazards caused by imitation of keys. Electronic locks only need to remember a set of passwords, and do not need to carry metal keys, which saves people from the trouble of carrying metal keys, so it is appreciated by more and more people. [0003] In the traditional solution, the existing dynamic password for unlocking does not have multiple types of passwords or even if it has multiple types of passwords, it needs to verify and analyze the password type and digital password respec...

AI Technical Summary

Problems solved by technology

[0003] In the traditional solution, the existing dynamic password for unlocking does not have multiple types of passwords or even if it has multiple types of passwords, it needs to verify and analyze the password type and digital password respectively during verification; and the length of the existing dynamic password for unlocking exceeds 9 digits. Difficult to remember; the security of the existing dynamic password for unlocking cannot be guaranteed, and it is easy to be cracked and cause losses

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