Security screen structure
By combining the EPP hardware encryption keyboard and electromagnetic screen into one, the built-in encryption core and anti-tamping circuits form a closed security zone, solving the security and embedded design problems of bank financial equipment, achieving higher security and convenience.
Patent Information
- Application Number
- CN202422035551.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-22
AI Technical Summary
In banking financial equipment, the key values of EPP hardware encryption keyboards are fixed in sequence, low security, and the design of the flexible circuit board of the electromagnetic screen is easily attacked illegally, resulting in poor security and inconvenient embedded design.
Combine the EPP hardware encryption keyboard and electromagnetic screen functions into one, with a built-in encryption core, anti-replacement control circuit and anti-tamping circuit to form a closed safety zone, integrate the main control module connection, enhance security and facilitate embedded design.
Improves the security of the device, reduces the possibility of illegal attacks, adapts to embedded design requirements, and enhances the security and privacy protection of data transmission.
Smart Images
Figure CN223078748U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of intelligent equipment, in particular to a safety screen structure. Background Technique
[0002] At present, bank financial equipment generally integrates an EPP hardware encryption keyboard or an electromagnetic screen. When used in public places, since the key value sequence of the EPP hardware encryption keyboard is fixed, it is easy to guess the input password, and the security is relatively low; moreover, it is large in size and heavy, bringing inconvenience to equipment users. And the existing electromagnetic screens generally transmit sensitive data by connecting with the main control module through a flexible circuit board. To adapt to the embedded design, the specifications of the flexible circuit boards are generally different, and this design is extremely vulnerable to illegal attacks and has poor security protection. Content of the Utility Model
[0003] To solve the above problems, the utility model proposes a safety screen structure, which can combine the functions of the EPP hardware encryption keyboard and the electromagnetic screen into one. Through circuits such as an internal encryption kernel, an anti-replacement control circuit, and an anti-disassembly circuit, the on-screen password keyboard and the electromagnetic signature module as a whole form a relatively closed safety area, which not only integrates the connection method with the main control module, but also greatly reduces the possibility of illegal attacks, is safer, and is more convenient to adapt to the embedded design.
[0004] In the first aspect, the utility model provides a safety screen structure, and the main control module is connected to the safety screen structure through a display driving module; the safety screen structure includes three parts: a screen group structure, a safety control structure, and a battery, and the three are connected to each other in pairs; the screen group structure is composed of a capacitive touch module with an anti-replacement control circuit, an electromagnetic induction module, and a display screen module; the safety control structure is composed of an encryption module, a touch control module, an electromagnetic control module, an anti-disassembly module, a display driving module, and a third anti-replacement control module.
[0005] Further, the first anti-replacement module in the capacitive touch module is connected to the third anti-replacement control module; the capacitive touch module is connected to the touch control module; the second anti-replacement module in the electromagnetic induction module is connected to the third anti-replacement control module; the electromagnetic induction module is connected to the electromagnetic control module; the display screen module, the display driving module, and the main control module are connected in sequence; the touch control module, the electromagnetic control module, the anti-disassembly module, and the third anti-replacement control module are respectively connected to the encryption module; the battery is connected to the encryption module; the display driving module is used to drive the display screen module to display images and text information.
[0006] Further, the encryption module is used to cooperate with the second anti-replacement control circuit in the capacitive touch module and the electromagnetic induction module to realize the protection mechanism for preventing the replacement of the electromagnetic induction module and the capacitive touch module, and cut off potential safety hazards.
[0007] Further, the anti-disassembly module is controlled by the encryption module and is used to detect whether the security screen structure has been unsealed.
[0008] Further, the touch control module is used to convert the capacitance value change generated by the finger-touch capacitive touch module into position information. The touch control module is connected to the encryption module to implement data encryption.
[0009] Further, the electromagnetic control module is used to convert the magnetic field change generated by the electronic signature pen touching the electromagnetic induction module into information such as position and pressure sensitivity. The electromagnetic control module is connected to the encryption module to achieve data encryption.
[0010] The embodiments of the present utility model bring the following beneficial effects:
[0011] The present utility model proposes a security screen structure, which can integrate the EPP hardware encryption keyboard and the electromagnetic screen functions into one. By means of built-in circuits such as an encryption kernel, an anti-replacement control circuit, and an anti-disassembly circuit, the under-screen password keyboard and the electromagnetic signature module form a relatively closed security area as a whole, which not only integrates the connection method with the main control module, but also greatly reduces the possibility of illegal attacks, is safer, and is more convenient to adapt to embedded designs.
[0012] Other features and advantages of the present utility model will be described in the subsequent description, or some features and advantages can be inferred from the description or determined without doubt, or can be known by implementing the above technologies of the present utility model.
[0013] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings
[0014] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0015] Figure 1 A schematic diagram of a security screen structure provided by an embodiment of the present utility model;
[0016] Figure 2 Another schematic diagram of a security screen structure provided by an embodiment of the present utility model.
[0017] Icons: 1. Screen group structure; 2. Safety control structure; 3. Battery; 4. Main control module; 11. Capacitive touch module; 12. Electromagnetic induction module; 13. Display screen module; 111. First anti-replacement control module; 112. Second anti-replacement control module; 21. Third anti-replacement control module; 22. Touch control module; 23. Electromagnetic control module; 24. Anti-disassembly module; 25. Display driving module; 26. Encryption module. Detailed implementation manners
[0018] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0019] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0020] To facilitate the understanding of the embodiments of the present utility model, a safety screen structure provided by the embodiments of the present utility model will be introduced in detail first, as Figure 1 and Figure 2 shown.
[0021] The present utility model provides a safety screen structure. The main control module 4 is connected to the safety screen structure through the display driving module 25; the safety screen structure includes three parts: a screen group structure 1, a safety control structure 2, and a battery 3, and the three are connected to each other in pairs; the screen group structure 1 is composed of a capacitive touch module 11 with an anti-replacement control circuit, an electromagnetic induction module 12, and a display screen module 13, and the safety control structure 2 is composed of an encryption module 26, a touch control module 22, an electromagnetic control module 23, an anti-disassembly module 24, a display driving module 25, and a third anti-replacement control module 21;
[0022] The first anti-replacement module 111 in the capacitive touch module 11 is connected to the third anti-replacement control module 21; the capacitive touch module 11 is connected to the touch control module 22; the second anti-replacement module 121 in the electromagnetic induction module 12 is connected to the third anti-replacement control module 21; the electromagnetic induction module 12 is connected to the electromagnetic control module 23; the display screen module 13, the display driver module 25, and the main control module 4 are connected in sequence; the touch control module 22, the electromagnetic control module 23, the anti-tampering module 24, and the third anti-replacement control module 21 are respectively connected to the encryption module 26; the battery 3 is connected to the encryption module 26.
[0023] The functions of each component are introduced as follows:
[0024] The battery 3 is used to supply power to the encryption module 26 to ensure that sensitive data can be saved for more than one year in the power-off state.
[0025] The encryption module 26 implements the security control function of multiple SPI / I2C / UART / USB bus interfaces, featuring high performance, high security, and low power consumption. It supports symmetric algorithms such as DES, 3DES, AES, SM1, M4, SSF33, etc., asymmetric algorithms such as RSA (4096bit), ECC (512bit), SM2, etc., and supports anti-tampering detection and anti-replacement detection.
[0026] The display driver module 25 is used to drive the display screen module 13 to display image and text information.
[0027] The anti-replacement control circuit built into the security control structure 2, controlled by the encryption module 26, collaborates with the second anti-replacement control circuits in the capacitive touch module 11 and the electromagnetic induction module 12 to implement a protection mechanism to prevent the replacement of the electromagnetic induction module 12 and the capacitive touch module 11, cutting off potential security hazards.
[0028] The anti-tampering module 24 is controlled by the encryption module 26 and is used to detect whether the security screen structure has been unsealed. If it is illegally unsealed, all sensitive data stored internally will be immediately cleared;
[0029] The touch control module 22 converts the capacitance value changes generated by finger touches on the capacitive touch module 11 into information such as position. The touch control module 22 is connected to the encryption module 26 to implement data encryption.
[0030] The electromagnetic control module 23 converts the magnetic field changes generated by the touch of an electronic signature pen on the electromagnetic induction module 12 into information such as position and pressure sensitivity. The electromagnetic control module 23 is connected to the encryption module 26 to implement data encryption.
[0031] The usage method of this security screen structure is as follows:
[0032] During the process of handling business through a portable financial transaction terminal device, the main control module 4 drives the display screen module 13 to display the business interface in real time according to the process through the display driving module 25 of the security control structure 2.
[0033] In the non-signature mode, when interacting through an electronic signature pen, the electromagnetic induction module 12 outputs the position information of the electronic signature pen to the electromagnetic control module 23. At this time, the main control module 4 gives the obtained position information to the business application program through the non-encryption interface of the encryption module 26 to achieve interaction.
[0034] In the signature mode, the main control module 4 calls the encryption interface of the encryption module 26. Through parameter calling, the electromagnetic control module 23 is used to control the position and size of the signature area. When the electronic signature pen signs in this area, after the encryption interface encrypts the signature trajectory, the signature data is saved in the form of the original trajectory data and vector pictures, and the trajectory during signing is synchronously displayed on the display screen module 13.
[0035] In the non-password input mode, when interacting through a finger, the capacitive touch module 11 outputs the position information of the finger to the touch control module 22. At this time, the main control module 4 gives the obtained position information to the business application program through the non-encryption interface of the encryption module 26 to achieve interaction.
[0036] In the password input mode, the main control module 4 calls the encryption interface of the encryption module 26. Through parameter calling, a secure virtual security keyboard is constructed, and the key value order is randomly generated. The touch control module 22 is used to control the position and size of the touch key values. During this process, to prevent events such as eavesdropping, screen recording, and screenshotting, other processes are disabled from accessing the security screen structure through the encryption interface, the pressed key values are encrypted and transmitted to the main control module 4, and are displayed on the display screen module 13 in the form of "*".
[0037] The present utility model proposes a security screen structure, which can integrate the EPP hardware encryption keyboard and the electromagnetic screen function into one. Through built-in circuits such as an encryption kernel, an anti-replacement control circuit, and an anti-disassembly circuit, the under-screen password keyboard and the electromagnetic signature module as a whole form a relatively closed security area, which not only integrates the connection method with the main control module, but also greatly reduces the possibility of illegal attacks, is safer, and is more convenient to adapt to embedded design.
[0038] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.
[0039] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.
Claims
1. A safety screen structure, characterized in that, The main control module (4) is connected to the security screen structure through the display driving module (25); The security screen structure includes three parts: a screen group structure (1), a security control structure (2), and a battery (3), and the three are connected to each other in pairs; The screen group structure (1) consists of a capacitive touch module (11) with an anti-replacement control circuit, an electromagnetic induction module (12), and a display screen module (13); The security control structure (2) consists of an encryption module (26), a touch control module (22), an electromagnetic control module (23), an anti-tampering module (24), a display driving module (25), and a third anti-replacement control module (21).
2. The safety screen structure according to claim 1, characterized in that, The first anti-replacement module in the capacitive touch module (11) is connected to the third anti-replacement control module (21); The capacitive touch module (11) is connected to the touch control module (22); The second anti-replacement module in the electromagnetic induction module (12) is connected to the third anti-replacement control module (21); The electromagnetic induction module (12) is connected to the electromagnetic control module (23); the display screen module (13), the display driving module (25), and the main control module (4) are connected in sequence; The touch control module (22), the electromagnetic control module (23), the anti-tampering module (24), and the third anti-replacement control module (21) are respectively connected to the encryption module (26); the battery (3) is connected to the encryption module (26); The display driving module (25) is used to drive the display screen module (13) to display image and text information.
3. The safety screen structure according to claim 2, wherein The encryption module (26) is used to cooperate with the second anti-replacement control circuits in the capacitive touch module (11) and the electromagnetic induction module (12) to implement a protection mechanism for preventing the replacement of the electromagnetic induction module (12) and the capacitive touch module (11), and cut off potential safety hazards.
4. The safety screen structure according to claim 3, characterized in that, The anti-tampering module (24) is controlled by the encryption module (26) and is used to detect whether the security screen structure has been unsealed.
5. The safety screen structure according to claim 4, wherein The touch control module (22) is used to convert the capacitance value change generated by a finger touching the capacitive touch module (11) into position information. The touch control module (22) is connected to the encryption module (26) to implement data encryption.
6. The safety screen structure according to claim 5, characterized in that The electromagnetic control module (23) is used to convert the magnetic field change generated by an electronic signature pen touching the electromagnetic induction module (12) into position and pressure sensing; The electromagnetic control module (23) is connected to the encryption module (26) to implement data encryption.