Password-stealing-preventing random-variation numeric keypad

A random change, digital keyboard technology, applied in the protection of internal/peripheral computer components, etc., can solve problems such as undiscovered patent documents, achieve the effects of ensuring security, improving security, and saving time

Inactive Publication Date: 2013-12-25
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Through searching, no published patent documents identical with the application of the present invention have been found

Method used

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  • Password-stealing-preventing random-variation numeric keypad
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  • Password-stealing-preventing random-variation numeric keypad

Examples

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Embodiment Construction

[0020] The present invention will be described in further detail below with reference to the drawings and specific embodiments. It should be noted that this embodiment is descriptive, not restrictive, and cannot be used to limit the protection scope of the present invention.

[0021] A password anti-theft random change digital keyboard, including function keys, number keys, and control circuits. The appearance and structure of the two types of keys are the same as the size of a standard password input keyboard. The innovation of the present invention lies in the improvement of keys and control channels. Therefore, this implementation The example only describes the structure of the button and the structure of the control circuit.

[0022] The innovation of the present invention lies in:

[0023] 1. The button includes a keycap 2, a digital tube display 3, a conductive rubber trigger 6, a support sleeve 1, a support column 4, a thin film touch panel 7 and a circuit board 8, see figure...

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PUM

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Abstract

The invention relates to a password-stealing-preventing random-variation numeric keypad comprising function keys, numeric keys and a control circuit. Each key comprises a keycap, a digital tube display, conductive rubber triggers, support sleeves, support pillars, a thin-film touch panel and a circuit board, the thin-film touch panel is fixedly mounted on the circuit board, the conductive rubber triggers are fixedly mounted on the thin-film touch panel, the keycap is mounted on the conductive rubber triggers through the support sleeves and the support pillars in a guiding and sliding manner, and digital tubes are fixedly mounted on the thin-film touch panel below the middle of the keycap. The keypad aims to overcome defects of a traditional password keypad, and an 89C51 single chip microcomputer generates random numbers by the aid of an internal timer and a method of interrupt coalescing; the dynamic random-number password-stealing-preventing keypad, allowing positions of numbers from 0 to 9 displayed by the LED seven-segment digital tubes changing randomly, can not only be applied to password entering of ATMs (automatic teller machines), but also be widely applied to various other devices, utilizing keypads for entering passwords, such as POSs (points of sales), safety boxes and antitheft doors, and is of great significance to development of national economy and protection of civil information.

Description

Technical field [0001] The present invention relates to keyboards related to password input such as ATM cash dispensers, POS machines, self-service terminals, etc., in particular to a password anti-theft random change numeric keyboard. technical background [0002] With the development of economy and technology, ATM machines, POS machines, self-service terminals and other equipment are becoming more and more popular. While bringing convenience to people, there are also hidden security risks such as password leakage. At this stage, most of the financial systems use traditional input keyboards. The keyboard value of this keyboard key is fixed, and the confidentiality and security are poor. Criminals can analyze the user's respective digital information by observing the user's operation on each key position. In recent years, various password theft cases have been on the rise, causing great economic losses to the country and individuals. At the same time, due to the current situati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/83
Inventor 彭一准郭春荣张秋李欢欢李晓楠唐静
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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