Password input method

Abstract

The invention discloses a password input method, relates to the technical field of automobile encryption, and solves the technical problem that the existing automobile encryption strength is low. The method comprises the following steps: setting a password write-in scheduling module in communication connection with an operating system; setting a write-in password module used for receiving digits input by a keyboard or digits sent by a CAN (Controller Area Network) bus; setting a mapping module, wherein a mapping table in which numbers and characters are in one-to-one correspondence is stored in the mapping module; setting a password storage module for storing passwords; enabling the password writing module to send the received numbers to the mapping module, and enabling the mapping module to judge whether the received numbers are valid or not; if the number is valid, enabling the mapping module to obtain corresponding characters according to the received number query mapping table and send the characters to a password writing scheduling module, and enabling the password writing scheduling module to send the received characters to an operating system and the password storage module; and if not, enabling the mapping module to send out error reporting information to remind the user to input the number again.

Description

Technical field [0001] The present invention relates to the field of automotive encryption, and more particularly, it involves a password input method. Background technique [0002] In industrial control or automotive electronics, you will need to enter alphanumeric, such as ABC, or symbolic password, such as + -, for enhancing the password intensity. However, due to some specific occasions, such as the keyboard or entity buttons in the automotive CAN bus network, or if the cost is only equipped with a numeric keypad without a full-size keyboard, it is not possible to unable letters or symbols such that the password intensity is greatly reduced. Inventive content [0003] The technical problem to be solved by the present invention is directed to the above-mentioned deficiencies of the prior art, and the object of the present invention is to provide a password that can improve the password intensity. [0004] The technical solution of the present invention is: a password input me...

AI Technical Summary

Problems solved by technology

However, due to some specific occasions, such as the absence of keyboards or physical buttons in the CAN bus network of automobiles, or in order to reduce costs, only a numeric keyboard is equipped without a full-size keyboard, resulting in no letters or symbols, which greatly reduces the strength of the password.

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