Control system and control method based on dynamic password and usbkey
A technology of dynamic password and control system, applied in the field of data transaction, can solve the problems of unstable OTP control chip, loss of preset, increase battery capacity, etc., and achieve the effect of saving power supply, reducing the amount of code and debugging work.
Active Publication Date: 2018-07-17
SHENZHEN EXCELSECU DATA TECH
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Problems solved by technology
[0004] The object of the present invention is to provide a control system based on a dynamic password and USBKEY and its control method, aiming to solve the problems caused by the unstable power supply of the USB interface when using the USB mode and switching to the power supply through the USB interface in the prior art. The OTP control chip may lose the preset content and need to increase the battery capacity
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[0039]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0040] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.
[0041] An embodiment of the present invention provides a control system based on dynamic password and USBKEY, such as figure 1 As shown, the control system includes a dynamic password control chip 101 , a USB control chip 102 , a USB interface 104 , a battery 103 and a detection circuit 105 .
[0042] The input end of detection circuit 105 connects USB interface 104, and the first output end of detection circuit 105 connects the state detection end of dynamic password co...
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The present invention relates to the technical field of data transactions. The present invention provides a control system based on a dynamic password and a USBKEY and a control method thereof. The control system includes a dynamic password control chip, a USB control chip, a USB interface, a battery, and a detection circuit; the detection circuit detects When the USB interface is connected to an external device, a detection signal is output to the dynamic password control chip; the dynamic password control chip enters a dormant state when receiving the detection signal; the battery supplies power to the dynamic password control chip, and when the dynamic password control chip enters a dormant state, the The power supply of the dynamic password control chip, when the USB control chip starts to work, the dynamic password chip is still powered by the battery, because the dynamic password control chip enters a low power consumption state, and the power supply of the dynamic password control chip and the USB control chip does not interfere with each other, avoiding Switching to USB power supply causes the defect that the dynamic password control chip may lose the preset content.
Description
technical field [0001] The invention relates to the technical field of data transaction, in particular to a control system and a control method based on a dynamic password and USBKEY. Background technique [0002] The full name of OTP is One-time Password, also known as dynamic password. It is based on a special algorithm to generate a time-related, unpredictable random number combination every 60 seconds. Each password can only be used once. OTP is technically divided into three types. Time synchronization, event synchronization and challenge / response, challenge / response OTP is commonly used in online business, output the challenge code issued by the server on the website / response, enter the challenge code on the dynamic token, through the built-in The algorithm generates a 6 / 8-digit random number, and the password is valid once. Since a challenge code needs to be entered, a numeric keypad needs to be added. [0003] In the prior art, on a composite device with OTP functio...
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IPC IPC(8): G06F21/31
CPCG06F21/31G06F13/382G06F21/81Y02D10/00G06F1/266G06F2213/0042H04L9/3226
Inventor 陈柳章
Owner SHENZHEN EXCELSECU DATA TECH