CN215647854U - Anti-dismantling and anti-damage safety module - Google Patents

Abstract

The utility model discloses a tamper-proof and tamper-proof safety module, which belongs to the technical field of electronic equipment, wherein one side of the surface of a module body is provided with a trigger output interface I, an NC interface I, a high-level trigger input interface II, an NC interface II, a low-level trigger input interface I and a low-level trigger input interface II, the other side of the surface of the module body is provided with an NC interface III, a trigger output interface II, an NC interface IV, a serial port sending interface, a serial port receiving interface, a power ground interface and a power input interface, the tamper-proof and tamper-proof safety module supports four paths of independent safety intrusion detection circuits, supports three hundred and sixty degrees of physical attacks and analysis such as dead angle-free detection, cutting, polishing, drilling and the like, immediately physically destroys a key chip to be protected after the attack is detected, and simultaneously erases a key and sensitive information immediately, and also supports the product to still detect external attacks in an external power-off state, and the power consumption is extremely low, and the standby operation can be carried out for a very long time.

Description

Anti-dismantling and anti-damage safety module

Technical Field

The utility model relates to the technical field of electronic equipment, in particular to a disassembly and damage preventing safety module.

Background

With the development of society and the progress of science and technology, a large number of electronic devices are applied to various fields of people's lives.

At present, data information can be stolen by a competitor or a hacker in a reverse analysis mode in the using process of general electronic products and party administration military police safety electronic products in the civil field, but the existing general electronic products in the civil field mostly have no good safety module to carry out self-destruction on internal information of the electronic products, so that the information is prevented from being leaked.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide a disassembly-prevention and damage-prevention safety module which supports four independent safety intrusion detection circuits, supports three hundred and sixty-degree dead angle-free detection of physical attacks and analysis such as cutting, polishing and drilling, immediately and physically destroys a key chip to be protected after the attack is detected, and simultaneously immediately erases a key and sensitive information, and also supports the product to still detect external attacks in an external power-off state, has extremely low power consumption, and can work in a standby mode for an ultra-long time.

In order to solve the above problems, the present invention adopts the following technical solutions.

A disassembly-preventing damage-preventing safety module comprises a module body, wherein one side of the surface of the module body is provided with a trigger output interface I, an NC interface I, a high-level trigger input interface II, an NC interface II, a low-level trigger input interface I and a low-level trigger input interface II, the other side of the surface of the module body is provided with an NC interface III, a trigger output interface II, an NC interface IV, a serial port sending interface, a serial port receiving interface, a power ground interface and a power input interface, the surface of the module body is fixedly connected with a shell, the surface of the shell is tightly fixed with a cover plate through fixing screws, one surface of the cover plate is fixedly bonded with a protective film, and a disassembly-preventing contact is in contact connection between the cover plate and the shell, the disassembly-preventing damage-preventing safety module supports four independent safety intrusion detection circuits, and supports three-hundred-sixty-degree dead-angle-free detection, cutting, grinding, drilling and other physical attacks and analyses, after the attack is detected, the key chip to be protected is destroyed physically immediately, the key and the sensitive information are erased immediately, the external attack can still be detected under the external power-off state of the product, the power consumption is extremely low, and the standby operation can be carried out for a very long time.

Furthermore, high level triggers input interface one and high level and triggers input interface two and be equipped with protection winding circuit, low level triggers input interface one and low level and triggers input interface two and also can set up the protection winding for the safety module can realize four at most independent input protection windings, great improvement protection security.

Furthermore, the lines between the first trigger output interface and the second trigger output interface can be replaced mutually, so that the logical relationship between the outputs of the first trigger output interface and the second trigger output interface can be configured, and the arrangement of the lines is convenient.

Furthermore, the casing adopts the design of two cavities wall, bond through high temperature resistant glue between casing and the apron, can make apron and casing form the integration, improve and prevent tearing open the vandalism performance.

Furthermore, the cover plate is a pentahedral dragon-grain cover, and the hard circuit board is changed into a soft design, so that the disassembly resistance of the device is improved.

Compared with the prior art, the utility model has the advantages that:

(1) the scheme supports four independent safe intrusion detection circuits, supports three hundred sixty-degree dead angle-free detection, cutting, polishing, drilling and other physical attacks and analysis, immediately and physically destroys a key chip to be protected after the attack is detected, and simultaneously, immediately erases a key and sensitive information, also supports the product to still detect external attacks in an external power-off state, has extremely low power consumption, and can work in a standby mode for an ultra-long time.

(2) The high level triggers input interface one and the high level triggers input interface two and is equipped with protection winding circuit, and low level triggers input interface one and the low level triggers input interface two also can set up the protection winding for the safety module can realize four at most independent input protection windings, great improvement protection security.

(3) The circuits of the first trigger output interface and the second trigger output interface can be replaced mutually, so that the logic relation between the outputs of the first trigger output interface and the second trigger output interface can be configured, and the circuits can be conveniently arranged.

(4) The casing adopts the design of two cavities wall, bonds through high temperature resistant glue between casing and the apron, can make apron and casing form the integration, improves and prevents tearing open the vandalism performance.

(5) The cover plate is a pentahedral dragon pattern cover, and the hard circuit board is changed into a soft body design, so that the anti-dismantling performance of the device is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a module body according to the present invention;

fig. 3 is a circuit diagram of the present invention.

The reference numbers in the figures illustrate:

the system comprises a 1 trigger output interface I, a 2NC interface I, a 3 high level trigger input interface I, a 4 high level trigger input interface II, a 5NC interface II, a 6 low level trigger input interface I, a 7 low level trigger input interface II, a 8NC interface III, a 9 trigger output interface II, a 10NC interface IV, a 11 serial port transmitting interface, a 12 serial port receiving interface, a 13 power ground interface, a 14 power input interface, a 15 module body, a 16 shell, a 17 cover plate, an 18 protective film, a 19 anti-disassembly contact and a 20 fixing screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a tamper-proof and tamper-proof security module comprises a module body 15, referring to fig. 1-3, a trigger output interface one 1, an NC interface one 2, a high level trigger input interface one 3, a high level trigger input interface two 4, an NC interface two 5, a low level trigger input interface one 6 and a low level trigger input interface two 7 are arranged on one side of the surface of the module body 15, the trigger output interface one 1 is connected with a high level self-destruction booster circuit, the product is logically self-destroyed by an instantaneously raised voltage after being attacked, the high level trigger input interface one 3 and the high level trigger input interface two 4 are provided with irregular winding protection, the low level trigger input interface one 6 and the low level trigger input interface two 7 are the same as the high level trigger input interface one 3 and the high level trigger input interface two 4 and are also provided with irregular winding protection, the other side of the surface of the module body 15 is provided with a third NC interface 8, a second trigger output interface 9, a fourth NC interface 10, a serial port transmitter interface 11, a serial port receiver interface 12, a power ground interface 13 and a power input interface 14, the fixed surface of the module body 15 is connected with a casing 16, a cover plate 17 is fastened on the surface of the casing 16 through a fixing screw 20, a surface of the cover plate 17 is fixedly bonded with a protective film 18, a disassembly-preventing contact 19 is in contact connection between the cover plate 17 and the casing 16, the disassembly-preventing contact 19 is loosened when the casing 16 and the cover plate 17 are disassembled, an elastic thimble can be triggered, and a standby trigger output circuit is communicated, so that the voltage is instantly improved to carry out self-destruction.

Referring to fig. 1 and 3, the first high-level trigger input interface 3 and the second high-level trigger input interface 4 are provided with protection winding circuits, and the first low-level trigger input interface 6 and the second low-level trigger input interface 7 can also be provided with protection windings, so that the security module can realize at most four independent input protection windings, thereby greatly improving the protection security, and the circuits between the first trigger output interface 1 and the second trigger output interface 9 can be replaced with each other, so that the logical relationship between the outputs of the first trigger output interface 1 and the second trigger output interface 9 can be configured, and the circuits can be conveniently arranged.

Referring to fig. 2 and 3, the casing 16 is designed to be a double-cavity partition, and the casing 16 and the cover plate 17 are bonded by high-temperature-resistant glue, so that the cover plate 17 and the casing 16 are integrated, and the anti-dismantling and anti-damage performance is improved.

When the case 16 is damaged, the thimble of the anti-removal and anti-damage safety module and the anti-removal contact 19 become loose, namely, the contact thimble can automatically alarm as long as the contact with the corresponding contact in the module shell is released, and simultaneously after the intrusion detection action occurs, the safety module can send out a pulse signal to drive a self-destruction circuit on the circuit board to carry out the self-destruction function of the key chip, the pulse signal is changed into driving the LED lamp for facilitating visual demonstration, the safety module passes through the practical application on the circuit board, the safety module and the dragon pattern circuit on the shell are self-developed products of our department, and the function of real-time intrusion detection can be achieved when the safety module is matched with the dragon pattern circuit on the shell, the device can perform three hundred sixty-degree dead angle-free protection on cutting, polishing, drilling, cover dismounting and other invasion behaviors, also can detect external attack under the external power-off state of a product, has extremely low power consumption, and can be standby for work for a very long time.

The foregoing is only a preferred embodiment of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims (5)

1. The utility model provides a prevent tearing open and prevent destroying safety module, includes module body (15), its characterized in that: one side of the surface of the module body (15) is provided with a trigger output interface I (1), an NC interface I (2), a high level trigger input interface I (3), a high level trigger input interface II (4), an NC interface II (5), a low level trigger input interface I (6) and a low level trigger input interface II (7), the other side of the surface of the module body (15) is provided with a third NC interface (8), a second trigger output interface (9), a fourth NC interface (10), a serial port transmitting interface (11), a serial port receiving interface (12), a power ground interface (13) and a power input interface (14), the surface of the module body (15) is fixedly connected with a shell (16), the surface of the shell (16) is fastened with a cover plate (17) through a fixing screw (20), a protective film (18) is fixedly adhered to one surface of the cover plate (17), and an anti-disassembly contact (19) is connected between the cover plate (17) and the shell (16) in a contact mode.

2. A tamper-evident, tamper-evident security module as claimed in claim 1, wherein: the high-level trigger input interface I (3) and the high-level trigger input interface II (4) are provided with protection winding circuits, and the low-level trigger input interface I (6) and the low-level trigger input interface II (7) can also be provided with protection windings.

3. A tamper-evident, tamper-evident security module as claimed in claim 1, wherein: and the lines between the first trigger output interface (1) and the second trigger output interface (9) can be replaced mutually.

4. A tamper-evident, tamper-evident security module as claimed in claim 1, wherein: the casing (16) adopts a double-cavity partition design, and the casing (16) is bonded with the cover plate (17) through high-temperature-resistant glue.

5. A tamper-evident, tamper-evident security module as claimed in claim 1, wherein: the cover plate (17) is a pentahedral dragon pattern cover.

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