WO2009036609A1 - Security protection box - Google Patents

Security protection box Download PDF

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Publication number
WO2009036609A1
WO2009036609A1 PCT/CN2007/002902 CN2007002902W WO2009036609A1 WO 2009036609 A1 WO2009036609 A1 WO 2009036609A1 CN 2007002902 W CN2007002902 W CN 2007002902W WO 2009036609 A1 WO2009036609 A1 WO 2009036609A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
protection box
security protection
board
protected
Prior art date
Application number
PCT/CN2007/002902
Other languages
English (en)
French (fr)
Inventor
Cunliang Tong
Shuxian Shi
Original Assignee
Pax Computer Technology (Shenzhen) Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pax Computer Technology (Shenzhen) Co., Ltd. filed Critical Pax Computer Technology (Shenzhen) Co., Ltd.
Priority to US12/524,245 priority Critical patent/US8164912B2/en
Publication of WO2009036609A1 publication Critical patent/WO2009036609A1/zh

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/86—Secure or tamper-resistant housings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0275—Security details, e.g. tampering prevention or detection
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0208—Interlock mechanisms; Means for avoiding unauthorised use or function, e.g. tamperproof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0284—Details of three-dimensional rigid printed circuit boards
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/141—One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/04—Assemblies of printed circuits
    • H05K2201/047—Box-like arrangements of PCBs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10151—Sensor

Definitions

  • the invention belongs to the field of electronic circuit protection, and in particular relates to a safety protection box for protecting components on a circuit board from attack. Background technique
  • Embodiments of the present invention are implemented in such a manner as to protect a protected area of a protected circuit board and provide protection for components within the area.
  • the security protection box includes a circuit board, and the periphery of the circuit board is thick and has a box shape, and the circuit board is provided with a circuit wiring layer, and the circuit wiring layer triggers related circuit erasure when subjected to physical attack or
  • the invention of the invention protects the components in the protected area by covering a protective area of the protected circuit board with a centrally thick, peripherally thick box-like circuit board.
  • FIG. 1 is a perspective view showing a state in which a safety cover is used according to an embodiment of the present invention
  • Figure 2 is a partially exploded perspective view of Figure 1. detailed description
  • Embodiments of the present invention enclose important components on a protected circuit board by providing a box-shaped circuit board having a central turn, a peripheral thickness, and circuit wiring on the side where the protected circuit board is vulnerable. Once the act of destroying important electronic components or stealing sensitive data on the electronic components occurs, the traces on the security box are disconnected or shorted, triggering the associated circuitry to destroy or erase the protected circuit board. Sensitive data information within important components to prevent them from being detected or stolen.
  • the protected circuit board 1Q may be a circuit board used on a main point of a point of sale device such as a POS (point of sales) machine or other devices.
  • the circuit board 10 is protected with a multilayer wiring may be a printed circuit board 2 on which the broken line in the protected area as shown by the reference numeral and I 4.
  • the protected circuit board 10 is provided with important components such as a central processing unit, a flash memory, a static memory, a dynamic random access memory, a security monitor chip, an integrated circuit chip, a bus, a security detection trace, and the like in the protected area 14.
  • the protective circuit board 10 is provided with safety protection boxes 20 on both sides thereof.
  • the safety protection box 20 can be installed only on one side of the protected circuit board 10 as needed, and the skin protection circuit board is provided at the same time. Metal traces are placed on the other side of the 10, which are broken or shorted when physically attacked, triggering circuitry to destroy or erase sensitive data within critical components of the protected circuit board 10. To prevent its skin from being detected or stolen.
  • the security box 20 is disposed on the protection area 14 to enclose the components in the protection area 14.
  • the security protection package 20 includes a central circuit board and a peripherally thick circuit board, and the circuit board is provided with a circuit wiring layer.
  • the security protection box 20 includes a body 22 and a wall 24 extending integrally from the periphery of the board body 22.
  • the board body 22 may be a hard circuit board or a flexible circuit board, and the wall body 24 is a hard circuit board.
  • the wall 24 is provided with a fixing hole 242, and the safety protection box 2Q is positioned by means of a screw (not shown) passing through the fixing hole 242 of the wall 24.
  • the safety protection box 2Q further includes a conductive strip 26, and the wall 24 is provided with a strip-shaped recess 244, and the conductive strip 26 is mounted in the strip-shaped recess 244.
  • the conductive strip 24 is in physical contact with the inside of the protective case 20, and the protective case 20 is electrically connected to the protected circuit board 10 by means of the conductive strip 24.
  • a circuit wiring layer is disposed in the board body 22 and the wall body 24.
  • the wiring layer includes two parallel traces of the bypass line, wherein one of the traces is connected to the high level, and the other of the traces is connected to the low level.
  • the traces in the board 22 can be arranged to be electrically connected to the traces in the wall 24; of course, the two can also be relatively independent.
  • the present invention is applicable to the field of electronic circuit protection, and provides a security protection box for enclosing a protected area of a protected circuit board and providing protection for components in the area.
  • the security protection box includes a circuit board, and the periphery of the circuit board is thick and has a box shape, and the circuit board is provided with a circuit wiring layer, and the circuit wiring layer triggers related circuit erasure when subjected to physical attack or Destroy information on components within the protected area.
  • the present invention protects components in the protected area by arranging a centrally thick, peripherally thick circuit board over the protected area of the protected circuit board.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)

Description

安全保护盒 技术领域
本发明属于电子电路保护领域， 尤其涉及一种保护电路板上的元件免受攻 击的安全保护盒。 背景技术
现今， 电子电路中存储的一些高敏感性的数据信息， 如 M亍信息、 密码、 注册码等经常在未经授权许可的情况下被攻击盗用， 因此， 对这些数据的保护 也受到越来越高的重视， 各种形式的保护装置和方法不断出现， 其中， 一种较 为有效的防止敏感数据在未经授权许可的情况下被攻击的方法， 是通过在记忆 装置中存储用来加密、解密敏感程序或数据的软件来防止敏感数据信息被盗取。 但是， 这种方式依赖于存储于记忆装置中的加密、 解密密钥， 而加密、 解密密 钥也需要通过物理的和电子的保护， 才不会轻易地受到攻击。 发明内容
本发明实施例的目的在于提供一种安全保护盒， 旨在解决电子电路元件的 敏感数据信息通过物理手段被盗取的问题。
本发明实施例是这样实现的， 一种安全保护盒， 用于包围被保护的电路板 的保护区域并为该区域内的元件提供保护。 所述安全保护盒包括一电路板， 所 述电路板中部溥、 外围厚而形成盒状， 所述电路板上设有电路布线层， 这些电 路布线层在受到物理攻击时触发相关电路擦除或破坏保护区域内元件上的信 本发明通过在被保护的电路板的保护区域上罩设一个中部溥、 外围厚的盒 状的电路板来保护保护区域内的元件。 附图说明
图 1是本发明实施例提供的安全保护盖使用状态的立体示意图；
图 2是图 1的部分分解示意图。 具体实施方式
为了使本发明的目的、 技术方案及优点更加清楚明白， 以下结合附图及实 施例， 对本发明进行进一步详细说明。 应当理解， 此处所描迷的具体实施例仅 仅用以解释本发明， 并不用于限定本发明。
本发明实施例通过在被保护的电路板易受攻击的侧面设置中部溥、 外围厚 并具有电路布线的盒状电路板， 将被保护的电路板上的重要元件围起来。 一旦 有破坏重要电子元件或盗取电子元件上敏感数据信息的行为发生时， 会使安全 保护盒上的走线断开或短接， 触发相关电路使其破坏或擦除被保护的电路板上 重要元件内的敏感数据信息， 防止其被探测或盗取。
所述被保护的电路板 1Q可以是销售点装置如 POS ( point of sales )机的主 板或其他装置上使用的电路板。 请参看图 1和图 2, 所述被保护的电路板 10可 以是具多层布线的印刷电路板， 其上的保护区域如图 2中虚线所示并用标号 I4 表示。 所述被保护的电路板 10在保护区域 14内设置有重要元件如中央处理单 元、 闪存、 静态存储器、 动态随机存储器、 安全监控器芯片、 集成电路芯片、 总线、 安全检测走线等。 所述被保护的电路板 10 的两侧均装设有安全保护盒 20, 当然， 根据需要也可以只在被保护的电路板 10的一侧装设安全保护盒 20, 同时在皮保护电路板 10的另一侧上布 金属走线，这些金属走线在受到物理攻 击时会断开或短接，触发相关电路使其破坏或擦除被保护的电路板 10上重要元 件内的敏感数据信息， 防止其皮探测或盗取。所述安全保护盒 20罩设于保护区 域 14上，将保护区域 14内的元件包围起来。所述安全保护装盒 20包括一个中 部溥、 外围厚的电路板， 并且电路板上设有电路布线层。 本实施例中， 所述安 全保护盒 20包括 体 22及自板体 22周缘一体延伸出的墙体 24。 所述板体 22 覆盖于保护区域 14上， 所述墙体 24围绕于保护区域 14外。 所迷板体 22可以 为硬电路板或柔性电路板，所述墙体 24为硬电路板。墙体 24上设有固定孔 242， 所述安全保护盒 2Q借助于穿过墙体 24上固定孔 242的螺钉（图未示）定位。 所述安全保护盒 2Q还包括导电条 26, 所述墙体 24上设有条形凹槽 244, 导电 条 26装于条形凹槽 244内。所述导电条 24与保护盒 20内部物理接触，所述保 护盒 20借助于导电条 24与被保护的电路板 10电连接。所述板体 22和墙体 24 内均设有电路布线层，布线层上包括绕行的两平行走线，其中一走线接高电平， 另一走线接低电平。所述板体 22中的走线可设置为与墙体 24中的走线电连接； 当然， 两者之间也可相对独立。 当安全保护盒 20上的走线断开或短接时，走线 上的电平信号发生变化， 从而使相关电路触发， 破坏或擦除保护的电路板 10 上重要元件内的敏感数据信息， 防止这些数据信息被盗取。
以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发 明的精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本发明 的保护范围之内。 工业实用性
本发明适用于电子电路保护领域， 提供了一种安全保护盒， 用于包围 被保护的电路板的保护区域并为该区域内的元件提供保护。 所述安全保护 盒包括一电路板， 所述电路板中部溥、 外围厚而形成盒状， 所述电路板上 设有电路布线层， 这些电路布线层在受到物理攻击时触发相关电路擦除或 破坏保护区域内元件上的信息。本发明通过在被保护的电路板的保护区域 上罩设一个中部溥、 外围厚的电路板来保护保护区域内的元件。

Claims

权利要求
1、一种安全保护盒，用于包围被保护的电路板的保护区域并为该区域内的 元件 供保护， 其特征在于： 所述安全保护盒包括一电路板， 所述电路板中部 溥、 外围厚而形成盒状， 所述电路板上设有电路布线层， 这些电路布线层在受
2、 如权利要求 1所述的安全保护盒， 其特征在于， 所述电路板包括板体及 自板体周缘一体延伸的墙体， 所述板体覆盖于保护区域上， 所述墙体围绕于保 护区域外， 所述电路布线层分别设于板体及墙体内。 .
3、 如权利要求 2所述的安全保护盒， 其特征在于， 所述板体与被保护的电 路板平行， 所述墙体与板体垂直。
4、如权利要求 2所述的安全保护盒，其特征在于，所述板体为柔性电路板， 所述墙体为硬电路板。
5、如权利要求 1所述的安全保护盒，其特征在于，所述电路板为硬电路板。
6、 如权利要求 2所述的安全保护盒， 其特征在于， 每布线层上包括绕行的 两平行走线， 其中一走线接高电平， 另一走线接低电平， 走线断开或短接时其 上电平信号发生变化，从而触发相关电路擦除或破坏保护区域内元件上的信息。
7、 如权利要求 6所述的安全保护盒， 其特征在于， 所述板体中的走线与墙 体中的走线电连接。 '
8、如权利要求 2所述的安全保护盒，其特征在于，所述墙体上设有固定孔， 所述保护盒借助于穿过墙体上固定孔的螺釘定位。
9、 如权利要求 2所述的安全保护盒， 其特征在于， 还包括导电条， 保护盒 板体周缘的墙体上设有条形凹槽， 导电条装于条形凹槽内。
10、 如权利要求 9所述的安全保护盒， 其特征在于， 所述导电条与保护盒 内部物理接触， 所述保护盒借助于导电条与被保护的电路板电连接。
PCT/CN2007/002902 2007-09-21 2007-10-09 Security protection box WO2009036609A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/524,245 US8164912B2 (en) 2007-09-21 2007-10-09 Security protection box

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2007100772079A CN100464340C (zh) 2007-09-21 2007-09-21 安全保护盒
CN200710077207.9 2007-09-21

Publications (1)

Publication Number Publication Date
WO2009036609A1 true WO2009036609A1 (en) 2009-03-26

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ID=39207699

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/002902 WO2009036609A1 (en) 2007-09-21 2007-10-09 Security protection box

Country Status (3)

Country Link
US (1) US8164912B2 (zh)
CN (1) CN100464340C (zh)
WO (1) WO2009036609A1 (zh)

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Also Published As

Publication number Publication date
US8164912B2 (en) 2012-04-24
CN101145175A (zh) 2008-03-19
US20100103631A1 (en) 2010-04-29
CN100464340C (zh) 2009-02-25

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