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Anti-disassembly device and electronic equipment of security chip

A security chip and anti-disassembly technology, which is applied in computer security devices, coupling devices, circuit safety components, etc., can solve the problem of security chip disassembly

Active Publication Date: 2021-08-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides an anti-disassembly device and electronic equipment for a security chip, which are used to solve the problem that the security chip is easily detached from the PCB

Method used

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  • Anti-disassembly device and electronic equipment of security chip
  • Anti-disassembly device and electronic equipment of security chip
  • Anti-disassembly device and electronic equipment of security chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] combine Figure 5 to Figure 14 In order to prevent disassembly of the security chip 10 , the first one-way screw 113 can be used to connect with the first nut 114 to achieve a fixed connection between the security chip 10 and the PCB 50 . Among them, the one-way screw is characterized in that it can only be locked in one direction, and cannot be rotated in the opposite direction, that is, it can only be tightened and cannot be loosened. Therefore, the first one-way screw 113 passes through the security chip 10 and connects with the first nut 114 to fix the security chip 10 , and the first one-way screw 113 can only be tightened with the first nut 114 and cannot be loosened. The first nut 114 is fixed on the surface of the PCB 50 , so that the non-detachable connection between the security chip 10 and the PCB 50 can be realized.

[0110] Figure 5 Tamper device 02 for the security chip along figure 2 The schematic cross-sectional view in the direction of A-A', as sho...

Embodiment 2

[0135] combine Figure 15 to Figure 30 In order to further realize the anti-disassembly of the security chip 10 on the basis of the security chip anti-disassembly device 02 provided in the first embodiment, in this embodiment, a first protective cover 13 can be added to prevent the first one-way screw 113 from being dismantled protection, and use the second one-way screw 116 and the second nut 117 to fix the first protective cover 13 on the PCB50, so as to improve the disassembly difficulty of the first one-way screw 113, thereby further realizing the fixed connection between the security chip 10 and the PCB50.

[0136] Wherein, the first protective cover 13 is fixed on the PCB50 through the second one-way screw 116 and the second nut 117, forming a first accommodation cavity Q with the PCB50, and the first one-way screw 113 and the security chip 10 are located in the first protective cover 13 , not directly exposed. To remove the first one-way screw 113 , the first protectiv...

Embodiment 3

[0169] combine Figure 31 to Figure 39 In order to further realize the anti-disassembly of the security chip 10 on the basis of the security chip anti-disassembly device 02 provided in the second embodiment, in this embodiment, a second protective cover 14 can be added to prevent the second one-way screw 116 from being dismantled. protection, and the second protective cover 14 is fixedly connected to the first protective cover 13 to increase the difficulty of dismounting the second one-way screw 116, so as to further realize the fixed connection between the security chip 10 and the PCB50.

[0170] Wherein, the second protective cover 14 extends into the countersunk hole 1311 on the first protective cover 13 and is matched with the countersunk hole 1311, and the second protective cover 14 is fixedly connected with the hole wall 1312 of the countersunk hole 1311; the second one-way The head 1161 of the screw 116 is located in the second receiving chamber formed by the second pro...

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PUM

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Abstract

The application provides an anti-disassembly device and electronic equipment for a security chip, which relate to the field of chip technology and are used to solve the problem that the security chip is easily detached from a printed circuit board (PCB). Security chip anti-dismantlement device, PCB, security chip and fixed structure; PCB, used to carry the security chip, and the PCB is electrically connected to the security chip; security chip, used to encrypt the data transmitted by the security chip and other devices in the PCB; The fixing structure is used to fix the security chip on the surface of the PCB in a non-detachable manner.

Description

technical field [0001] The present application relates to the field of chip technology, and in particular to an anti-tampering device and electronic equipment for a security chip. Background technique [0002] With the rapid development of the information technology (information technology, IT) industry, users have higher and higher requirements on the security and reliability of hardware such as servers and storage devices in electronic devices. [0003] In order to realize the security function of the electronic equipment, the electronic equipment is generally provided with a security chip. The security chip is used to run a secure operating system or encrypt data stored in the security chip, for example, to further encrypt the key stored in the security chip to effectively protect electronic equipment and prevent unauthorized users from accessing, thereby realizing Security function of electronic equipment. [0004] Taking the security chip as a TPM (trusted platform mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/77G06F21/60H05K1/02H01R12/71
CPCG06F21/602G06F21/77H01R12/716H05K1/0271H05K1/0275H05K2201/10189
Inventor 张铁强龚心虎徐华华
Owner HUAWEI TECH CO LTD