Dynamic password and digital certificate based double-factor authentication security token device
A two-factor authentication and dynamic password technology, which is applied in the field of identity authentication in information security, can solve the problems of user inconvenience, unusable USBKEY, and limited use of dynamic password cards, and achieve high security and flexible authentication methods.
Active Publication Date: 2012-07-18
BEIHANG UNIV
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Problems solved by technology
USBKEY authentication and dynamic password authentication cannot be used at the same time, which brings inconvenience to users
In some confidential occasions, the use of the USB port of the computer is restricted, and the USBKEY cannot be used at this time; and the number of times the dynamic password card can be used is limited, so it is not convenient to carry
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[0027] The present invention is a two-factor authentication security token device based on dynamic password and digital certificate, its structure diagram is shown in figure 1 As shown in Figure 2 (including Figure 2-A and Figure 2-B ) is its circuit diagram, which is composed of a safety control chip, a microcontroller, a liquid crystal display, buttons and a control circuit. The position connection relationship and signal direction between them are: the microcontroller is externally connected to the LCD screen and buttons, and the microcontroller is connected to the security control chip through a serial port and an input / output port, and transmits the dynamic password signal to the security control chip.
[0028] The safety control chip is the Z32U of National Technology;
[0029] The microcontroller is a Samsung S3F8285;
[0030] The liquid crystal display screen is a special liquid crystal display screen designed and manufactured by Dongguan Jiatian Company, a custom...
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The invention discloses a dynamic password and digital certificate based double-factor authentication security token device which consists of a security control chip, a microcontroller, a liquid crystal display screen and a key. The microcontroller is externally connected with the liquid crystal display screen and the key; and the microcontroller is connected with the security control chip through a serial port and an input / output port, receives an interrupt signal of the security control chip, and transmits a dynamic password signal to the security control chip. When the security token device is connected with a computer, a user can perform identity authentication by using a dynamic password or a digital certificate; and when the security token device is used off line, the user can trigger the key on the security token, and the dynamic password for identity authentication is acquired by reading the liquid crystal display screen on the security token. The device has good safety and flexibility and can meet the application requirements under different environments. The device has a better practical value and a broad application prospect in the technical field of identity authentication in information security.
Description
technical field [0001] The present invention relates to a two-factor authentication security token, in particular to a two-factor authentication security token device based on a dynamic password and a digital certificate, which combines the dynamic password and digital certificate authentication, and the user can choose to use the digital certificate or Dynamic password for identity authentication. The invention belongs to the technical field of identity authentication in information security. Background technique [0002] Common identity authentication uses a static "username plus password" method, which is very vulnerable to attacks, resulting in forged legitimate user identities. Most domestic financial institutions currently mainly use dynamic password cards or USBKEYs based on digital certificate authentication to enhance the security of users' online transactions. [0003] Dynamic password authentication ensures that the login passwords sent by the user to the remote...
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IPC IPC(8): H04L9/32
Inventor 刘建伟刘书明郑志明毛剑修春娣尚涛
Owner BEIHANG UNIV