WO2010083747A1

WO2010083747A1 - Touch screen terminal, authentication method and system thereof

Info

Publication number: WO2010083747A1
Application number: PCT/CN2010/070249
Authority: WO
Inventors: 蔡晔华
Original assignee: 深圳市同洲电子股份有限公司
Priority date: 2009-01-20
Filing date: 2010-01-19
Publication date: 2010-07-29
Also published as: CN101483871A

Abstract

A touch screen terminal, authentication method and system thereof are provided. The method includes the following steps: invoking the signature input interface and displaying it according to an authentication opening signal; receiving the signature inputted in the signature input interface by the user; extracting the handwriting characteristics of said signature, determining whether the similarity between the handwriting characteristics and the prestored authentication handwriting characteristics reaches a preset value, if yes, the authenticaion is successful. The following steps in the present invention, receiving the signature inputted in the signature input interface by the user, extracting the handwriting characteristics of the signature, and determining whether the similarity between the handwriting characteristics and the prestored authentication handwriting characteristics reaches the preset value, if yes, the authenticaion is successful, enable the authentication by using handwriting characteristics, without remembering digital passwords for the user, thus implementing strongly simplicity and applicability.

Description

Touch screen terminal and authentication method and system thereof

This application claims priority to Chinese Patent Application No. 200910105171.X, filed on January 20, 2009, entitled "A Touch Screen Terminal and Its Authentication Method and System", the entire contents of which are hereby incorporated by reference. The citations are incorporated herein by reference.

Technical field

The present invention belongs to the field of touch screen technologies, and in particular, to a touch screen terminal and an authentication method and system thereof. Background technique

In the existing mobile phone with a touch screen terminal, when performing data transmission authentication or data password protection, it is necessary to authenticate by inputting a digital password, and compare the digital password input by the user with the pre-stored authentication password. When the digital password is the same, The authentication was successful. When using this method for authentication, the user needs to remember the digital password and input it every time the authentication is performed. The operation is cumbersome and the applicability is poor. Summary of the invention

An object of the present invention is to provide a method for authenticating a touch screen terminal, which aims to solve the problem that a mobile phone with a touch screen terminal needs to be authenticated by inputting a digital password, which is cumbersome to operate and has poor applicability.

The embodiment of the present invention is implemented by the method for authenticating a touch screen terminal, and the method includes the following steps:

According to the authentication enable signal, the signature input interface is called and displayed;

Receiving a signature input by the user on the signature input interface;

The handwriting feature of the signature is extracted, and it is determined whether the similarity between the handwriting feature and the pre-stored authentication handwriting feature reaches a preset value, and the authentication is successful.

Another object of the embodiments of the present invention is to provide an authentication system for a touch screen terminal, the system comprising:

a pre-stored unit for pre-storing the authentication handwriting feature;

a signature input interface calling unit, configured to invoke a signature input interface according to an authentication open signal and display the display through an external display; a signature receiving unit, configured to receive a signature input by a user on a signature input interface displayed by the external display device;

The signature handwriting feature extraction unit is configured to extract the handwriting feature of the signature received by the signature receiving unit; whether the similarity of the pre-stored authentication handwriting feature reaches a preset value, and the authentication is successful.

Another object of embodiments of the present invention is to provide a touch screen terminal comprising an authentication system for a touch screen terminal as described above.

In the embodiment of the present invention, the signature input by the user on the signature input interface is received, the handwriting feature of the signature is extracted, and the similarity between the handwriting feature and the pre-stored authentication handwriting feature is determined to be a preset value, and the authentication is successful. Through the handwriting feature for authentication, the user does not need to remember the digital password, the operation is simple, and the applicability is strong. DRAWINGS

1 is a flowchart of a method for authenticating a touch screen terminal according to an embodiment of the present invention;

2 is a schematic diagram of an authentication system of a touch screen terminal according to an embodiment of the present invention;

Figure 3 is a detailed structural view of Figure 2 provided by the first embodiment of the present invention;

Figure 4 is a detailed structural view of Figure 2 provided by a second embodiment of the present invention. detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the embodiment of the present invention, the signature input by the user on the signature input interface is received, the handwriting feature of the signature is extracted, and the similarity between the handwriting feature and the pre-stored authentication handwriting feature is determined to be a preset value, and the authentication is successful.

FIG. 1 is a flowchart of a method for authenticating a touch screen terminal according to an embodiment of the present invention.

In step S101, according to the authentication enable signal, the signature input interface is called and displayed. The authentication enable signal may be a power-on authentication signal used to enable the power-on authentication function, and used to enable data transmission. The transmission authentication signal of the authentication function and the encrypted authentication signal for turning on the data encryption function.

In the first embodiment of the present invention, the step of pre-storing the authentication handwriting feature is further included before the step S101, specifically: after the system is powered on, determining whether the user identification card stores the authentication handwriting feature, otherwise calling the authentication signature input interface and Displaying; receiving an authentication signature input by the user; extracting an authentication handwriting feature of the authentication signature, and pre-storing the authentication handwriting feature on the user identification card. The user identification card refers to various card types used in the communication field for recording personal information of the user, such as a UIM card, a SIM card, etc. In addition, the handwriting feature refers to a feature used to characterize the habit of the user's handwriting input. Such as handwriting pressure, speed, handwriting features, etc.

Further, when the authentication enable signal is the power-on authentication signal, in order to prevent the user from performing authentication every time the power is turned on, and in order to protect the security of the user information in the user identification card, in the embodiment of the present invention, The steps of pre-existing the authentication handwriting feature before, after or at the same time as the user identification card further comprise the steps of: copying the authentication handwriting feature to the built-in memory. At this time, when it is determined that the user identification card stores the authentication handwriting feature, the method further includes the following steps: determining whether the signature information is stored in the built-in memory, and determining whether the authentication handwriting feature stored by the user identification card and the built-in memory are stored. Whether the handwriting features are consistent; otherwise, the power-on authentication signal is issued. When it is determined that the authentication handwriting feature stored by the user identification card is consistent with the authentication handwriting feature stored in the built-in memory, the boot authentication is successful, and the system enters normal operation; when determining the authentication handwriting feature stored by the user identification card and the built-in memory storage When the signatures of the rights are inconsistent, the authentication fails, so that when the user applies the user identification card to other touch screen terminals, the user identification card is unavailable in other touch screen terminals, thereby protecting the security of the user information in the user identification card.

Further, in order to further protect the security of the user identification card information, and at the same time enable the user to apply the user identification card to other touch screen terminals, the user identification card can be continuously used on other touch screen terminals, and the authentication handwriting features are copied to the built-in Before, after or at the same time, the step of the memory further comprises the steps of: calling the protection password input interface and displaying; storing the protection password input by the user in the user identification card. At this time, when it is determined that the authentication handwriting feature stored by the user identification card is inconsistent with the authentication handwriting feature stored in the built-in memory, an authentication password input interface for prompting the user to input the authentication password is invoked and displayed; determining the authentication input by the user Whether the password is consistent with the protection password stored in the user ID card, if the authentication is successful, the system enters normal operation; otherwise, the authentication fails.

Further, when determining the authentication password input by the user and the protection password stored in the user identification card In the case of consistency, the method further includes the steps of: copying the authentication handwriting feature pre-stored by the user identification card to the built-in memory, so that the user can directly perform automatic authentication when the touch screen terminal is used next time.

In the second embodiment of the present invention, the step of pre-storing the authentication handwriting feature is further included before step S101, specifically: determining whether the built-in memory stores the authentication handwriting feature after the system is powered on, otherwise calling the authentication signature input interface and displaying Receiving an authentication signature input by the user; extracting an authentication handwriting feature of the authentication signature, and pre-storing the authentication handwriting feature in the built-in memory. The user identification card refers to various card types used in the communication field for recording personal information of the user, such as a UIM card, a SIM card, etc. In addition, the handwriting feature refers to a feature used to characterize the habit of the user's handwriting input. Such as handwriting pressure, speed, handwriting features, etc.

Further, when the authentication enable signal is the power-on authentication signal, in order to prevent the user from performing authentication every time the power is turned on, and in order to protect the use security of the touch screen terminal, in the embodiment of the present invention, the authentication handwriting feature is The steps of pre-stored in the built-in memory, before or at the same time further comprise the steps of: copying the authentication handwriting feature to the user identification card. At this time, when it is determined that the built-in memory stores the authentication handwriting feature, the method further includes the following steps: determining whether the signature information is stored in the user identification card, and determining the authentication handwriting feature stored in the built-in memory and the authentication stored by the user identification card. Whether the handwriting features are consistent; otherwise, the power-on authentication signal is issued. When it is determined that the authentication handwriting feature stored in the built-in memory is consistent with the authentication handwriting feature stored by the user identification card, the power-on authentication succeeds, and the system enters normal operation; when determining the authentication handwriting feature stored in the built-in memory and the user identification card stored When the signatures of the rights are inconsistent, the authentication fails, so that when the user applies other user identification cards to the touch screen terminal, other user identification cards are unavailable at the touch screen terminal, thereby protecting the security of the touch screen terminal.

Further, in order to further protect the security of the touch screen terminal and enable the user to apply other user identification cards to the touch screen terminal, other user identification cards may be continuously used on the touch screen terminal, and the authentication handwriting feature is copied to the user. Before, after or at the same time, the steps of identifying the card further include the following steps: calling the protection password input interface and displaying; storing the protection password input by the user in the built-in memory. At this time, when it is determined that the authentication handwriting feature stored in the built-in memory is inconsistent with the authentication handwriting feature stored by the user identification card, an authentication password input interface for prompting the user to input the authentication password is invoked and displayed; determining the authentication input by the user Whether the password is consistent with the protection password stored in the built-in memory, if the authentication is successful, the system enters normal operation; otherwise, the authentication fails.

Further, when determining the authentication password input by the user and the protection password stored in the built-in memory In the case of consistency, the method further includes the following steps: copying the authentication handwriting feature pre-stored in the built-in memory to the user identification card, so that the user can directly perform automatic authentication when using the touch screen terminal next time.

In step S102, the signature input by the user is received.

In step S103, the handwriting feature of the signature is extracted, and it is determined whether the similarity between the extracted handwriting feature and the pre-stored authentication handwriting feature reaches a preset value, and the authentication is successful.

FIG. 2 shows the principle of the authentication system of the touch screen terminal provided by the embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are listed.

The signature input interface calling unit 11 is configured to call the signature input interface and display it through an external display device according to the authentication enable signal. The authentication enable signal may be a power-on authentication signal for turning on the power-on authentication function, a transmission authentication signal for turning on the data transmission authentication function, and a cryptographic authentication signal for turning on the data encryption function. The signature receiving unit 12 is configured to receive a signature input by the user. The signature handwriting feature extraction unit 13 extracts the handwriting feature of the signature received by the signature receiving unit 12, and determines whether the similarity between the handwriting feature extracted by the signature handwriting feature extraction unit 13 and the pre-stored authentication handwriting feature is reached by the determination unit 14 The default value is that the authentication is successful. Among them, the handwriting feature refers to features used to characterize the user's handwriting input, such as handwriting pressure, speed, handwriting features, and the like.

Fig. 3 shows the specific structure of Fig. 2 provided by the first embodiment of the present invention.

The first determining module 101 in the pre-stored unit 15 is configured to determine whether the authentication handwriting feature is stored in the first user identification card 105 in the pre-stored unit 15 after the system is powered on. The first authentication signature input interface calling module 102 in the pre-stored unit 15 is configured to: when the first determining module 101 determines that the authentication fingerprint feature is not stored in the first user identification card 105, invoke the authentication signature input interface and pass the external display device. display. The first authentication signature receiving module 103 in the pre-stored unit 15 is configured to receive an authentication signature input by the user. The first authentication signature handwriting feature extraction module 104 in the pre-stored unit 15 is configured to extract the authentication handwriting feature of the authentication signature received by the first authentication signature receiving module 103, and pre-store the authentication handwriting feature in the first user identification. Card 105. The first subscriber identity card 105 is a card class that can be applied to the communication field for recording personal information of the user, such as a UIM card, a SIM card, and the like.

Further, when the authentication enable signal is the power-on authentication signal, in order to prevent the user from performing authentication every time the power is turned on, and in order to protect the security of the user information in the user identification card, in the embodiment of the present invention, the pre-stored unit The first copy module 110 of 15 copies the authentication handwriting feature extracted by the first authentication signature handwriting feature extraction module 104 to the first built-in memory 109 in the pre-stored unit 15. At this time, when When the first determining module 101 determines that the first user identification card 105 stores the authentication handwriting feature, the second determining module 107 in the pre-stored unit 15 determines whether the signature information is stored in the first built-in memory 109, otherwise the power-on authentication signal is sent. The signature input interface calls unit 11. The third determining module 108 in the pre-stored unit 15 is configured to determine, when the second determining module 107 stores the signature information stored in the first built-in memory 109, the authentication handwriting feature stored by the first user identification card 105 and the first built-in memory 109. Whether the authentication handwriting feature is consistent, if the boot authentication is successful, the system enters normal operation; otherwise, the authentication fails, so that when the user applies the first user identification card 105 to other touch screen terminals, the first user identification card 105 is in other The touch screen terminal is not available, thereby protecting the security of the user information in the first user identification card 105.

Further, in order to further protect the security of the user identification card information, and enable the user to apply the user identification card to other touch screen terminals, the user identification card can be continuously used on other touch screen terminals. In the embodiment of the present invention, the pre-stored unit 15 is used. The first protection password input interface calling module 106 calls the protection password input interface and displays it through the external display device, and stores the protection password input by the user in the first user identification card 105. At this time, when the third determining module 108 determines that the authentication handwriting feature stored by the first user identification card 105 is inconsistent with the authentication handwriting feature stored by the first built-in memory 109, the first authentication password input interface in the pre-stored unit 15 is called. The module 111 invokes an authentication password input interface for prompting the user to input the authentication password and displays it through the external display device, and receives the authentication password input by the user; the fourth determining module 112 in the pre-stored unit 15 is configured to determine the user input Whether the weight password is consistent with the protection password stored in the first subscriber identity card 105, if the power-on authentication is successful, the system enters normal operation; otherwise, the authentication fails.

Further, when the third determining module 108 determines that the authentication handwriting feature stored by the first user identification card 105 is consistent with the authentication handwriting feature stored by the first built-in memory 109, the first copying module 110 sets the first user identification card 105. The pre-stored authentication handwriting feature is copied to the first built-in memory 109 so that the user can directly authenticate automatically when the touch screen terminal is used next time.

Fig. 4 shows the specific structure of Fig. 2 provided by the second embodiment of the present invention.

The fifth determining module 201 in the pre-stored unit 15 is configured to determine whether the authentication handwriting feature is stored in the second built-in memory 205 in the pre-stored unit 15 after the system is powered on. The second authentication signature input interface calling module 202 in the pre-stored unit 15 is configured to invoke the authentication signature input interface and pass the external display device when the fifth determination module 201 determines that the second authentication memory 205 does not store the authentication handwriting feature. Display. The second authentication signature receiving module 203 in the pre-stored unit 15 is configured to receive an authentication signature input by the user. The second authentication signature handwriting feature extraction module 204 in the pre-stored unit 15 is configured to extract the authentication handwriting feature of the authentication signature received by the second authentication signature receiving module 203, and pre-store the authentication handwriting feature in the second built-in memory. 205.

Further, when the authentication enable signal is the power-on authentication signal, in order to prevent the user from performing authentication every time the power is turned on, and in order to protect the use security of the touch screen terminal, in the embodiment of the present invention, the first in the pre-stored unit 15 The second copy module 210 copies the authentication handwriting feature extracted by the second authentication signature handwriting feature extraction module 204 to the second user identification card 209 in the pre-stored unit 15. The first user identification card 105 is a card class that can be applied to the field of communication and used for recording personal information of the user, such as a UIM card, a SIM card, and the like. At this time, when the fifth determining module 201 determines that the second built-in memory 205 stores the authentication handwriting feature, the sixth determining module 207 in the pre-stored unit 15 determines whether the signature information is stored in the second user identification card 209, otherwise the booting is issued. The authentication signal is sent to the signature input interface calling unit 11. The seventh determining module 208 of the pre-stored unit 15 is configured to determine, when the sixth determining module 207 stores the signature information stored in the second user identification card 209, the authentication handwriting feature stored in the second built-in memory 205 and the second user identification card 209. Whether the stored authentication handwriting features are consistent, if the boot authentication is successful and the system enters normal operation; otherwise, the authentication fails, so that when the user applies the other user identification card to the touch screen terminal, other user identification cards are not available on the touch screen terminal. Used to protect the security of the touch screen terminal.

Further, in order to further protect the security of the use of the touch screen terminal, and when the user applies other user identification cards to the touch screen terminal, other user identification cards can be used on the touch screen terminal. In the embodiment of the present invention, the pre-stored unit 15 is used. The second protection password input interface calling module 206 calls the protection password input interface and displays it through the external display device, and stores the protection password input by the user in the second built-in memory 205. At this time, when the seventh determining module 208 determines that the authentication handwriting feature stored by the second built-in memory 205 is inconsistent with the authentication handwriting feature stored by the second user identification card 209, the second authentication password input interface in the pre-stored unit 15 is called. The module 211 invokes an authentication password input interface for prompting the user to input the authentication password and displays it through the external display device, and receives the authentication password input by the user. The eighth determining module 212 in the pre-stored unit 15 is configured to determine the user-entered authentication. Whether the weight password is consistent with the protection password stored in the second built-in memory 205, if the power-on authentication succeeds, the system enters normal operation; otherwise, the authentication fails. Further, when the seventh determining module 208 determines that the authentication handwriting feature stored by the second built-in memory 205 is consistent with the authentication handwriting feature stored by the second user identification card 209, the second copying module 210 pre-stores the second built-in memory 205. The authentication handwriting feature is copied to the second user identification card 209 so that the user can directly authenticate automatically when the touch screen terminal is used next time.

In the embodiment of the present invention, the signature input by the user on the signature input interface is received, the handwriting feature of the signature is extracted, and the similarity between the handwriting feature and the pre-stored authentication handwriting feature is determined to be a preset value, and the authentication is successful. By using the handwriting feature for authentication, the user does not need to remember the digital password, the operation is simple, and the applicability is strong; further, the pre-stored authentication handwriting feature is stored in the user identification card to protect the security of the user information in the user identification card. Further, the authentication handwriting feature is simultaneously stored in the built-in memory to realize automatic authentication of the system booting; further, the protection password of the authentication handwriting feature is set, so that when the user identification card is applied to other touch screen terminals, It can be used continuously, and the security of the authentication handwriting feature is further improved; and the pre-stored authentication handwriting feature is stored in the built-in memory to protect the use security of the touch screen terminal; further, the authentication handwriting feature is simultaneously stored in In the user identification card, automatic authentication of the system boot is implemented; When the step is provided handwriting authentication password protection feature, so that the other subscriber identification card is applied to the touch screen terminal, you can continue to use, and thus further improve the security features of handwriting authentication.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

Rights request

A method for authenticating a touch screen terminal, the method comprising the steps of: invoking a signature input interface and displaying according to an authentication enable signal;

Receiving a signature input by the user on the signature input interface;

2. The method for authenticating a touch screen terminal according to claim 1, wherein the method further comprises pre-storing the authentication handwriting feature before the step of invoking the signature input interface and displaying according to the authentication enable signal. The steps are as follows:

After the system is powered on, it is determined whether the user identification card stores the authentication handwriting feature, otherwise the authentication signature input interface is invoked and displayed;

Receiving an authentication signature input by the user on the authentication signature input interface;

The authentication handwriting feature of the authentication signature is extracted, and the authentication handwriting feature is pre-stored on the user identification card.

The authentication method of the touch screen terminal according to claim 2, wherein, when the authentication enable signal is a power-on authentication signal, after extracting the authentication handwriting feature of the authentication signature, Still further comprising the step of copying the authentication handwriting feature to the built-in memory;

When it is determined that the user identification card stores the authentication handwriting feature, the method further includes the following steps:

Determining whether the signature information is stored in the built-in memory, determining whether the authentication handwriting feature stored by the user identification card is consistent with the authentication handwriting feature stored in the built-in memory, otherwise issuing a power-on authentication signal;

When it is determined that the authentication handwriting feature stored by the user identification card is consistent with the authentication handwriting feature stored in the built-in memory, the boot authentication is successful; when it is determined that the authentication handwriting feature stored by the user identification card is inconsistent with the authentication handwriting feature stored in the built-in memory , authentication failed.

The method for authenticating a touch screen terminal according to claim 3, wherein the method further determines whether the authentication handwriting feature stored by the user identification card is consistent with the authentication handwriting feature stored in the built-in memory. Further includes the following steps:

Call the protection password input interface and display it; And storing, in the user identification card, the protection password input by the user on the protection password input interface; when determining that the authentication handwriting feature stored by the user identification card is inconsistent with the authentication handwriting feature stored in the built-in memory, the method further includes the following step:

Invoking an authentication password input interface for prompting the user to input an authentication password and displaying the same;

It is determined whether the authentication password input by the user on the authentication password input interface is consistent with the protection password stored in the user identification card, and then the authentication is successful, otherwise the authentication fails.

The method for authenticating a touch screen terminal according to claim 1, wherein the method further comprises pre-storing the authentication handwriting feature before the step of invoking the signature input interface and displaying according to the authentication enable signal. The steps are as follows:

After the system is powered on, it is determined whether the built-in memory stores the authentication handwriting feature, otherwise the authentication signature input interface is invoked and displayed;

The authentication handwriting feature of the authentication signature is extracted, and the authentication handwriting feature is pre-stored in the built-in memory.

The authentication method of the touch screen terminal according to claim 5, wherein, when the authentication enable signal is a power-on authentication signal, after extracting the authentication handwriting feature of the authentication signature, Still further comprising the step of copying the authentication handwriting feature to a user identification card;

When it is determined that the built-in memory stores the authentication handwriting feature, the method further includes the following steps:

Determining whether the signature information is stored in the user identification card, and determining whether the authentication handwriting feature stored in the built-in memory is consistent with the authentication handwriting feature stored by the user identification card, otherwise issuing a power-on authentication signal;

When it is determined that the authentication handwriting feature stored in the built-in memory is consistent with the authentication handwriting feature stored by the user identification card, the power-on authentication succeeds, and the system enters normal operation; when determining the authentication handwriting feature stored in the built-in memory and the user identification card stored When the handwriting features are inconsistent, the authentication fails.

The method for authenticating a touch screen terminal according to claim 6, wherein the method further determines whether the authentication handwriting feature stored in the built-in memory is consistent with the authentication handwriting feature stored by the user identification card. Further includes the following steps:

Call the protection password input interface and display it; And storing the protection password input by the user on the protection password input interface in the built-in memory; when determining that the authentication handwriting feature stored in the internal memory is inconsistent with the authentication handwriting feature stored by the user identification card, the method further includes the following steps :

It is determined whether the authentication password input by the user on the authentication password input interface is consistent with the protection password stored in the built-in memory, and the boot authentication is successful, otherwise the authentication fails.

An authentication system for a touch screen terminal, wherein the system comprises: a pre-stored unit, configured to pre-store an authentication handwriting feature;

The signature input interface calling unit is configured to invoke the signature input interface according to the authentication enable signal and display the display through an external display;

a signature receiving unit, configured to receive a signature input by a user on a signature input interface displayed by the external display device;

The authentication system of the touch screen terminal according to claim 8, wherein the pre-stored unit comprises a first user identification card, and the pre-stored unit further comprises:

a first determining module, configured to determine, after the system is powered on, whether the first user identification card stores an authentication handwriting feature;

The first authentication signature input interface calling module is configured to: when the first determining module determines that the first user identification card does not store the authentication handwriting feature, call the authentication signature input interface and display the image by using an external display device;

The first authentication signature receiving module is configured to receive an authentication signature input by the user on the authentication signature input interface displayed by the external display device;

a first authentication signature handwriting feature extraction module, configured to extract an authentication handwriting feature of the authentication signature received by the first authentication signature receiving module, and prestore the authentication handwriting feature in the first user identification card.

10. The authentication system for a touch screen terminal according to claim 9, wherein said pre-existing The unit further includes a first built-in memory, and the pre-stored unit further includes:

a first copy unit, configured to copy the authentication stroke feature extracted by the first authentication signature handwriting feature extraction module to the first built-in memory;

a second determining module, configured to determine whether the signature information is stored in the first built-in memory, or send a power-on authentication signal to the signature input interface calling unit;

a third determining module, configured to: when the second determining module determines that the first built-in memory stores signature information, determine an authentication handwriting feature stored by the first user identification card and the first built-in memory storage Whether the authentication handwriting features are consistent, if the boot authentication is successful, otherwise the authentication fails.

The authentication system of the touch screen terminal according to claim 10, wherein the pre-stored unit further comprises:

a first protection password input interface calling module, configured to invoke the protection password input interface and display through the external display device, and store the protection password input by the user on the protection password input interface in the first user identification card;

a first authentication password input interface calling module, configured to: when the third determining module determines that the authentication handwriting feature stored by the first user identification card is inconsistent with the authentication handwriting feature stored in the first built-in memory, An authentication password input interface for prompting the user to input an authentication password and displaying it through an external display device;

a fourth determining module, configured to determine whether the authentication password input by the user on the authentication password input interface displayed by the external display device is consistent with the protection password stored in the first user identification card, and the boot authentication is successful. Otherwise the authentication fails.

The authentication system of the touch screen terminal according to claim 8, wherein the pre-stored unit comprises a second built-in memory, and the pre-stored unit further comprises:

a fifth determining module, configured to determine, after the system is powered on, whether the second built-in memory stores an authentication handwriting feature;

a second authentication signature input interface calling module, configured to: when the fifth determining module determines that the second built-in memory does not store the authentication handwriting feature, call the authentication signature input interface and display through the external display device;

a second authentication signature receiving module, configured to receive an authentication signature input by the user on the authentication signature input interface displayed by the external display device; a second authentication signature handwriting feature extraction module, configured to extract an authentication handwriting feature of the authentication signature received by the second authentication signature receiving module, and prestore the authentication handwriting feature in the second built-in memory .

The authentication system of the touch screen terminal according to claim 12, wherein the pre-stored unit further comprises a second user identification card, and the pre-stored unit further comprises:

a second copying unit, configured to copy the authentication stroke feature extracted by the second authentication signature handwriting feature extraction module to the second user identification card;

a sixth determining module, configured to determine whether the signature information is stored in the second user identification card, or send a power-on authentication signal to the signature input interface calling unit;

a seventh determining module, configured to: when the sixth determining module determines that the second user identification card stores the signature information, determine the authentication handwriting feature stored in the second built-in memory and the second user identification card Whether the stored authentication handwriting features are consistent, if the boot authentication is successful, otherwise the authentication fails.

The authentication system of the touch screen terminal according to claim 13, wherein the pre-stored unit further comprises:

a second protection password input interface calling module, configured to invoke the protection password input interface and display through the external display device, and store the protection password input by the user on the protection password input interface in the second built-in memory;

a second authentication password input interface calling module, configured to: when the seventh determining module determines that the authentication handwriting feature stored in the second built-in memory is inconsistent with the authentication handwriting feature stored in the second user identification card, An authentication password input interface for prompting the user to input an authentication password and displaying it through an external display device;

The eighth determining module is configured to determine whether the authentication password input by the user on the authentication password input interface displayed by the external display device is consistent with the protection password stored in the second built-in memory, and the boot authentication is successful, otherwise Authentication failed.

A touch screen terminal, comprising the authentication system of the touch screen terminal according to any one of claims 8 to 14.