Dynamic password control method

Abstract

The invention discloses a dynamic password control method which comprises the following steps: a. an encryption algorithm F is set in equipment/software, and the encryption algorithm takes the characteristic value and date of the equipment as variables; b. when losing the password, a client puts forward an inquiry request to a service provider; c. the service provider firstly check the identity of the client, then extract the characteristic value and the date of the current day of the client, starts the encryption algorithm to produce a superior password P1 and returns the superior password P1 to the client, wherein the encryption algorithm is as the same as the encryption algorithm F set in the equipment/software; d. the client inputs the superior password P1 into the equipment, the equipment starts the set-in encryption algorithm F after receiving the input of the client, and a superior password P2 can be calculated by taking characteristic value and the date of the current day of the equipment as variables; and e. the equipment compares superior passwords P1 and P2, when P1 and P2 are identical, the equipment verifies the superior password input by the client to be valid, thus the client password is reset to the initial password. The dynamic password control method provided in the invention effectively solves the leakage of the superior password with simple operation.

Description

technical field [0001] The present invention relates to an encryption method, in particular to a device / software dynamic password control method. Background technique [0002] Existing devices / software often need to set a password, which must be entered before use, and can only be used after verification. For example, at present, digital TV set-top boxes already have many functions that are more complicated than ordinary TVs, and many functions require password protection. For example: some TV programs are not suitable for minors to watch, thus, a kind of parental lock is generated, and these programs must be decrypted by parents before they can be watched; there are other TV programs that need to be charged, and these TV programs require additional fees , therefore, it is encrypted and protected, and you need to enter a password when watching it, and you can watch it after verification. Users can modify their own passwords. However, in daily applications, users often for...

AI Technical Summary

Problems solved by technology

[0003] Although the above-mentioned super password method can help the user to retrieve the password, due to the existence of the super password, it also brings many problems

In actual situations, there will be users who publish the super password on the network, so that the set-top box using this super password will completely lose the function of password protection, so that those programs that are easy to generate extra costs can be used free of charge; those programs that are not conducive to minors people watch programs that expose minors to

To modify these super passwords involves software upgrades to a large number of set-top boxes, and the upgraded super passwords still face the problem of leakage

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