JP6883747B1 - Information processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection board having tamper resistance. SOLUTION: A connection board connecting a first electronic component and a second electronic component includes a first flexible board including an electronic circuit to be protected and a second flexible board wrapping the electronic circuit. The first flexible substrate includes a first contact, the second flexible substrate includes a second contact, the second flexible substrate can wrap the electronic circuit, and the second flexible substrate is the electronic circuit. The first contact and the second contact are arranged inside the second flexible substrate in a state where they can contact each other. [Selection diagram] Fig. 4

Description

The present disclosure relates to information processing equipment.

In Patent Document 1, the apparatus main body, the first and second circuit boards arranged in the apparatus main body in a state of being separated from each other, and the facing surfaces of the first and second circuit boards are respectively arranged. An information processing apparatus is described that includes an electronic component and a shielding member that surrounds the outer peripheral portions of the first and second circuit boards.

Japanese Unexamined Patent Publication No. 2013-003979

The present disclosure is intended to provide information processing equipment that have a tamper resistance.

The present disclosure includes a housing, a first electronic component, a second electronic component, the connecting board for connecting the first electronic component and the second electronic component, an information processing apparatus wherein the connection The substrate includes a first flexible substrate including an electronic circuit to be protected and a second flexible substrate that encloses the electronic circuit. The first flexible substrate includes a first contact, and the second flexible substrate includes a first contact. The second flexible substrate is provided with a second contact, and the second flexible substrate can wrap the electronic circuit. When the second flexible substrate wraps the electronic circuit, the first contact and the second contact become mutually exclusive. The information processing device is arranged inside the second flexible substrate in a contactable state, and the information processing apparatus includes a fixing mechanism for fixing the connection board to the housing. Provided is an information processing device that presses the connection board so that the first contact and the second contact come into contact with each other when fixed to the device.

It is possible to provide information processing equipment that have a tamper resistance.

It is a figure which shows the embodiment of the information processing apparatus 1 of this disclosure, (a) top view, (b) side view, (c) front view. A conceptual diagram showing a first flexible substrate 50 included in the connection substrate 200 according to the embodiment of the present disclosure. A conceptual diagram showing a second flexible substrate 100 included in the connection substrate 200 according to the embodiment of the present disclosure. The conceptual diagram which shows the process (process 1) of wrapping the electronic circuit 51 which is the object of protection with the 2nd flexible substrate 100. The conceptual diagram which shows the process (process 2) of wrapping the electronic circuit 51 which is the object of protection with the 2nd flexible substrate 100. The conceptual diagram which shows the process (step 3) of wrapping the electronic circuit 51 which is the object of protection with the 2nd flexible substrate 100. The conceptual diagram which shows the process (step 4) of wrapping the electronic circuit 51 which is the object of protection with the 2nd flexible substrate 100. The conceptual diagram which shows the process (step 5) of wrapping the electronic circuit 51 which is the object of protection with the 2nd flexible substrate 100. A conceptual diagram showing a process (completed state) of wrapping the electronic circuit 51 to be protected with the second flexible substrate 100. A perspective view showing a step of fixing the connection board 200 according to the embodiment of the present disclosure to the housing 10. A cross-sectional view showing a step of fixing the connection board 200 according to the embodiment of the present disclosure to the housing 10.

(Background to this disclosure)
Information processing devices are required to ensure security. In particular, since a payment terminal, which is an information processing device having a payment function, handles money, it is required to ensure a high degree of security (tamper resistance). Tamper resistance refers to a state in which a device or device is less likely to be tampered with by analyzing, reading, or tampering with the internal structure or recorded data from the outside.

In recent years, payment terminals have been realized in the form of payment terminals arranged around store registers, smartphones, tablet terminals, and the like.

The information processing device generally includes a screen for displaying information. The screen may be a touch panel display (hereinafter, referred to as a touch panel) having both a display function and an input function. A person who intends to perform the above-mentioned falsification (hereinafter referred to as "unauthorized accessor") illegally inserts an electronic circuit (typically a touch panel IC) that processes confidential information such as a personal identification number input from the touch panel. You may try to access it. In order to ensure the tamper resistance of the information processing device, it is important that the information processing device is provided with a protective means against unauthorized access to the electronic circuit as described above.

Therefore, in the present disclosure, an information processing device having tamper resistance against unauthorized access to an electronic circuit to be protected will be described in detail.

Hereinafter, an embodiment (hereinafter, referred to as “the present embodiment”) in which the connection board, the information processing apparatus, and the method for protecting the electronic circuit according to the present disclosure are specifically disclosed will be described in detail with reference to the drawings as appropriate. .. However, more detailed explanation than necessary may be omitted. For example, detailed explanations of already well-known matters and duplicate explanations for substantially the same configuration may be omitted. This is to avoid unnecessary redundancy of the following description and to facilitate the understanding of those skilled in the art. It should be noted that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(Overview of Information Processing Device 1)
FIG. 1 is a view showing an embodiment of the information processing apparatus 1 of the present disclosure, which is (a) a top view, (b) a side view, and (c) a front view.

The information processing device 1 as an example of the present disclosure may be, for example, a composite payment terminal capable of allowing a user (purchaser of a product, etc.) to select a plurality of payment methods. However, the information processing device 1 is not limited to the compound payment terminal. The information processing device 1 may be placed around a register on the counter of a store (convenience store, restaurant, bookstore, etc.). The information processing device 1 has a housing 10. The housing 10 generally has a box shape. Further, the information processing device 1 includes a user surface 13 used by the user and a display surface 14 used by a store clerk or the like (see FIGS. 1A and 1B).

The information processing device 1 is mounted on a mounting surface α such as a counter in a store (see FIGS. 1B and 1C). At this time, the bottom surface 15 of the housing 10 is placed on the mounting surface α. The information processing device 1 is a magnetic card in the height direction from the mounting surface α (or the bottom surface 15 on the mounting surface α) and in order from the vicinity of the mounting surface α (or the bottom surface 15 on the mounting surface α). A payment slot 11, a contact-type IC card payment slot 12, and the above-mentioned user surface 13 are arranged. The user surface 13 may have a touch area for contactless IC payment.

The user performs operations such as swiping a magnetic card, inserting an IC card, and touching a contactless IC card according to the payment method (magnetic, contact IC, contactless IC) to be used. , Make a payment.

In the case of magnetic card payment, the user inserts the magnetic card into the magnetic card payment slot 11 and swipes, for example, in the direction from the front side to the back side (Y-axis direction in the figure) of FIG. 1 (b). ..

In the case of contact-type IC payment, the user inserts the contact-type IC card into the contact-type IC card payment slot 12. The contact type IC card may be, for example, a credit card. When making a credit card payment, the user may be required to enter a PIN. At this time, the user side 13 may be provided with a touch panel, and the user can input the secret number to the touch panel provided on the user side 13.

In the case of contactless IC payment, the user brings, for example, a transportation IC card or a smartphone compatible with contactless IC payment close to or touches the touch area of the user surface 13.

The information processing device 1 includes a screen on the display surface 14 side used by a store clerk or the like. The clerk or the like reads the information displayed on this screen. Further, the screen included in the display surface 14 may be the touch panel display described above, and a store clerk or the like can operate the information processing device 1 via the touch panel display.

The above is an example of the information processing device 1. The information processing device 1 may be an information terminal having a touch panel type screen, such as a smartphone or a tablet. The user surface 13 and the display surface 14, which may be provided with a touch panel type screen, shown in FIG. 1 are inclined with respect to the bottom surface 15. However, as in the case of smartphones, tablets, etc., the touch panel type screen does not have to be inclined with respect to the bottom surface 15 (or the surface in contact with the mounting surface α on which the information processing device 1 is placed).

(Connection board 200)
In FIG. 1B, the connection board 200 according to the embodiment of the present disclosure is shown by a broken line. The connection board 200 includes a first flexible board 50 and a second flexible board 100. The connection board 200 connects the first electronic component and the second electronic component. In this example, the first electronic component is a touch panel provided on the user surface 13. In this example, the second electronic component is the main board 20 arranged in the housing 10. The main board 20 may be a printed circuit board. At this time, the connection board 200 transmits the input signal input to the touch panel, which is the first electronic component, to the main board 20 which is the second electronic component. Further, the connection board 200 transmits a control signal from the main board 20 which is a second electronic component to the touch panel which is a first electronic component. The first electronic component and the second electronic component may be electronic components other than the touch panel and the main board 20. For example, the first electronic component may be an input unit having a numeric keypad that can be pressed by the user. The second electronic component may be a substrate other than the main substrate. Hereinafter, for convenience, the description will be made on the assumption that the first electronic component is a touch panel and the second electronic component is a main board.

As described above, the touch panel, which is the first electronic component, may be used for inputting a personal identification number. The information processing device 1 is required to ensure security. In particular, when the information processing device 1 is a payment terminal as shown in the figure having a payment function, since the information processing device 1 handles money, it is required to ensure a high degree of security (tamper resistance).

For example, the information indicating the personal identification number input to the touch panel is processed and converted by the electronic circuit 51 (see FIG. 2) described later included in the connection board 200, and transmitted to the main board 20. Therefore, in order to ensure tamper resistance, it is necessary to protect the electronic circuit 51 from unauthorized access.

FIG. 2 is a conceptual diagram showing a first flexible substrate 50 included in the connection substrate 200 according to the embodiment of the present disclosure. The first flexible substrate 50 may be a flexible printed circuit board (FPC). The first flexible substrate 50 may be a substrate having rigidity. When the first flexible substrate 50 is a rigid substrate, the second flexible substrate 100 may be configured to be bendable or deformable. The first flexible substrate 50 includes an electronic circuit 51 to be protected and a first contact 52.

The electronic circuit 51 is, for example, a touch panel IC. Information (secret information) that requires security protection, such as a personal identification number input to the touch panel, is processed and converted by the electronic circuit 51 and transmitted to the main board 20. The electronic circuit 51 is an electronic circuit to be protected from the viewpoint of ensuring tamper resistance.

The first contact 52 is a contact for connecting the first flexible substrate 50 to the second flexible substrate 100 (see FIG. 3) described later. The physical configuration of the contacts may be general and is not limited here.

As shown by an arrow in FIG. 2, the end of the first flexible substrate 50 opposite to the end where the first contact 52 is provided is a first electronic component (touch panel in this example). Connected to. Therefore, a connection portion with the first electronic component (touch panel in this example) is provided at the end portion of the first flexible substrate 50 opposite to the end portion where the first contact 52 is provided. The physical configuration of this connection portion may be general and is not shown. As will be described later, the end of the first flexible substrate 50 where the first contact 52 is provided is wrapped by the second flexible substrate 100. On the other hand, the connection portion with the first electronic component (touch panel in this example) may be provided in a portion not wrapped by the second flexible substrate 100.

FIG. 3 is a conceptual diagram showing a second flexible substrate 100 included in the connection substrate 200 according to the embodiment of the present disclosure. The second flexible substrate 100 may be a flexible printed circuit board (FPC).

The second flexible substrate 100 includes a first region 101, a second region 102 extending in the first direction from the first region 101, a third region 103 extending in the first direction from the second region 102, and a second region. A fourth region 104 extending in the second direction (orthogonal in the example of the figure) intersecting the first direction from 102, and a fifth region 105 extending in the direction opposite to the second direction from the second region 102. A sixth region 106 extending from the first region 101 in a direction opposite to the second direction is provided. As will be described later with reference to FIGS. 4 and 4, the second flexible substrate 100 wraps the electronic circuit 51 to be protected by folding the first regions 101 to the fifth regions 105.

The second flexible substrate 100 includes a second contact 110 in the first region 101. The second contact 110 is a contact for connecting the second flexible substrate 100 to the first flexible substrate 50. When the first contact 52 (see FIG. 2) of the first flexible substrate 50 and the second contact 110 (see FIG. 3) of the second flexible substrate 100 are in contact with each other, the signal line of the connection board 200 is connected and the first electron is connected. Signals can be transmitted to each other between the component (touch panel in this example) and the second electronic component (main board 20 in this example) (see FIG. 1 (b)).

As shown by the arrows in FIG. 3, the sixth region 106 of the second flexible substrate 100 is connected to the second electronic component (main substrate 20 in this example). Therefore, a connection portion with the second electronic component is provided in the sixth region 106. The physical configuration of this connection portion may be general and is not shown.

The second flexible substrate 100 may include a notch 121 between the second region 102 and the fourth region 104. The notch 121 may be a hole. The use of the notch 121 (or hole) will be described later with reference to FIGS. 4 and 4.

The second flexible substrate 100 may include a hole 122 between the second region 102 and the fifth region 105. The hole 122 may be a notch. The use of the hole 122 (or notch) will be described later with reference to FIGS. 4 and 4.

The second flexible substrate 100 may include a marker 131 in the fourth region 104 and a marker 132 in the fifth region 105, respectively. The markers 131 and 132 are marks indicating places to be screwed when the connection board 200 is attached to the housing 10 after the second flexible board 100 is folded (see FIG. 9). The markers 131 and 132 may have, for example, a circular pattern, or may be a flexible substrate cut out in a circular shape. Further, the shapes of the markers 131 and 132 are not limited to a circle, and may be, for example, a quadrangular pattern or a cutout.

4 to 9 are conceptual diagrams showing a process of wrapping the electronic circuit 51 to be protected with the second flexible substrate 100. FIG. 4 shows step 1, FIG. 5 shows step 2, FIG. 6 shows step 3, FIG. 7 shows step 4, FIG. 8 shows step 5, and FIG. 9 shows a completed state.

In step 1 shown in FIG. 4, the first contact 52 of the first flexible substrate 50 and the second contact 110 of the second flexible substrate 100 are connected. By connecting the first contact 52 and the second contact 110, the signal lines of the connection board 200 are connected, and the first electronic component (touch panel in this example) and the second electronic component (main board in this example) are connected. It becomes possible to transmit signals to and from 20) (see FIG. 1). Here, the surface of the second flexible substrate 100 on the side in contact with the first flexible substrate 50 is defined as the surface. That is, the surface of the second flexible substrate 100 is the side surface shown in FIG. The surface of the second flexible substrate 100 opposite to the front surface (the surface on the side not shown in FIG. 4) is referred to as the back surface.

In step 2 shown in FIG. 5, the second flexible substrate 100 connected to the first flexible substrate 50 is bent so that the surface of the first region 101 and the surface of the second region 102 face each other. At this time, the sixth region 106 of the second flexible substrate 100 is passed through the hole 122 (or notch). Further, the first flexible substrate 50 is passed through the notch 121 (or a hole) (see FIGS. 5 and 6).

In step 3 shown in FIG. 6, the second flexible substrate 100 connected to the first flexible substrate 50 is bent so that the front surface of the third region 103 and the back surface of the first region 101 face each other.

In step 4 shown in FIG. 7, the first flexible so that the front surface of the fourth region 104 and the back surface of the first region 101 (located below the third region 103 in the drawing) face each other. The second flexible substrate 100 connected to the substrate 50 is bent.

In step 5 shown in FIG. 8, the front surface of the fifth region 105 and the back surface of the first region 101 (located below the fourth region 104 and the third region 103 in the drawing) face each other. The second flexible substrate 100 connected to the first flexible substrate 50 is bent.

When the bending of the step 5 is completed, the connection board 200 is in the state as shown in FIG. The electronic circuit 51 to be protected is wrapped in the bent second flexible substrate 100 from all sides (up, down, left, and right in FIG. 9). Therefore, an unauthorized accessor cannot illegally access the electronic circuit 51 from the outside even by using a needle or the like. Therefore, the information processing apparatus 1 provided with the connection board 200 and the connection board 200 can ensure tamper resistance.

Further, as shown in FIG. 9, when the second flexible substrate 100 encloses the electronic circuit 51, the first contact 52 and the second contact 110 are in contact with each other inside the second flexible substrate 100. Is placed in.

(Fixing of connection board 200 to housing 10)
FIG. 10 is a perspective view showing a step of fixing the connection board 200 according to the embodiment of the present disclosure to the housing 10. FIG. 11 is a cross-sectional view showing a step of fixing the connection board 200 according to the embodiment of the present disclosure to the housing 10.

The connection board 200 configured by wrapping the electronic circuit 51 to be protected with the second flexible board 100 (see FIGS. 4 to 9) is fixed to the housing 10 of the information processing device 1. The information processing device 1 may include a fixing mechanism for this fixing.

In the illustrated example, the fixing mechanism includes a protrusion 62 (see FIG. 11) included in the housing 10 and a support plate 60 that supports the connection substrate 200. The folded portions of the first regions 101 to 5 regions 105 of the connection board 200 are arranged at positions sandwiched between the support plate 60 and the protrusions 62, and are screwed from the support plate 60 side with screws 61. Then, the connection board 200 is pressed by the screw 61 in the direction indicated by the white arrow in FIG. The means for pressing the connection board 200 in the direction indicated by the white arrow in FIG. 11 may be a means other than the screw 61.

The connection board 200 may be fixed to the housing 10 so that the protrusion 62 hits the position where the first contact 52 and the second contact 110 are located. In this case, the portion where the first contact 52 and the second contact 110 can come into contact with each other (see FIG. 9) is sandwiched between the protrusion 62 and the support plate 60 and pressed. When the connection board 200 is fixed to the information processing device 1, the fixing mechanism presses the connection board 200 so that the first contact 52 and the second contact 110 come into contact with each other.

The information processing device 1 in which the connection board 200 is fixed to the housing 10 as described above can secure tamper resistance as described below. For example, when an unauthorized accessor commits an illegal act such as removing the connection board 200 from the housing 10 or opening the second flexible board 100 that encloses the electronic circuit 51, the first contact 52 and the second contact 110 are connected. They come off each other and do not touch each other. Therefore, the information processing device 1 can detect the disconnection of the communication line in the connection board 200.

Further, when an unauthorized accessor commits an illegal act such as tearing the second flexible substrate 100 that encloses the electronic circuit 51, the communication line stretched in the second flexible substrate 100 is cut off. Therefore, the information processing device 1 can detect the disconnection of the communication line in the connection board 200.

The information processing device 1 that has detected the disconnection of the communication line in the connection board 200 disables at least a part of the functions of the information processing device 1.

The function of disabling the information processing device 1 when it detects the disconnection of the communication line in the connection board 200 (hereinafter, "protected function") may be the payment function of the information processing device 1. .. The protected function (protected payment function) may include, for example, the following.
-Payment function using a magnetic card (reading information from a magnetic card using the magnetic card payment slot 11, etc.)
-Payment function by contact type IC card (information reading from IC card by contact type IC card payment slot 12 etc.)
・ Payment function using a contactless IC card (information reading from a contactless IC card, etc. by the user side 13 equipped with a touch area for contactless IC card payment)
-Information reading function from the storage area included in the information processing device 1.

The information processing device 1 that has detected the disconnection of the communication line in the connection board 200 may not be turned on. In this case, the protected functions are all the functions of the information processing device 1.

As described above, the information processing device 1 provided with the connection board 200 according to the embodiment of the present disclosure detects fraudulent acts by an unauthorized accessor and makes at least a part of the functions of the information processing device 1 unusable. can do. Therefore, the information processing device 1 provided with the connection board 200 according to the embodiment of the present disclosure can secure tamper resistance.

Although not shown, the first flexible substrate 50 and the second flexible substrate 100 may be integrated into one flexible substrate from the beginning. The flexible substrate includes an electronic circuit 51 to be protected.

That is, the connection board connecting the first electronic component and the second electronic component may include a flexible board including an electronic circuit to be protected, and the flexible board may wrap the electronic circuit. As a result, an unauthorized accessor cannot illegally access the electronic circuit 51 from the outside even by using a needle or the like. Therefore, the information processing apparatus 1 provided with the connection board 200 and the connection board 200 can ensure tamper resistance.

As described above, the second flexible substrate extends in the first direction from the second region, the first region having the second contact, the second region extending in the first direction from the first region, and the second region extending in the first direction from the first region. A third region, a fourth region extending from the second region in a second direction intersecting the first direction, a fifth region extending from the second region in a direction opposite to the second direction, and the first region. A sixth region extending from the first region in a direction opposite to the second direction is provided. As a result, the second flexible substrate is connected to the first flexible substrate in the first region, and is connected to the second electronic component in the sixth region extending from the first region, while the electronic circuit is connected to the first region to the fifth region. It can be wrapped in an area to protect it.

Further, when the surface of the second flexible substrate on the side in contact with the first flexible substrate is used as the surface, the surface of the first flexible substrate and the surface of the second region face each other in the second flexible substrate. The electronic circuit is bent so that the front surfaces of the third region, the fourth region, and the fifth region and the back surface of the first region face each other, whereby the electronic circuit is formed on the second flexible substrate. Wrapped in. As a result, an unauthorized accessor cannot access the electronic circuit wrapped in the second flexible board. Therefore, tamper resistance can be ensured.

Further, a notch or a hole through which the first flexible substrate is passed is provided between the second region and the fourth region, and a sixth of the second flexible substrate is provided between the second region and the fifth region. It has a notch or hole through which the area passes. As a result, the first flexible substrate and the sixth region do not collide with the fourth region and the fifth region when the first region connected to the first flexible substrate and the second region are bent. Therefore, the electronic circuit can be appropriately wrapped by the second flexible substrate.

Further, the fixing mechanism includes a protrusion of the housing and a support plate for supporting the connection board. As a result, the connection board can be sandwiched between the protrusion and the support plate and pressed down. Therefore, the contact between the first contact and the second contact can be ensured.

Further, the first electronic component may be a touch panel, and the second electronic component may be a printed circuit board. As a result, the touch panel and the printed circuit board can be safely connected by the connection board.

Although various embodiments of the connection board, the information processing device, and the method for protecting the electronic circuit according to the present disclosure have been described above with reference to the drawings, it goes without saying that the present disclosure is not limited to such examples. It is clear that a person skilled in the art can come up with various modifications, modifications, substitutions, additions, deletions, and equality within the scope of the claims. It is understood that it naturally belongs to the technical scope of the present disclosure. Further, each component in the various embodiments described above may be arbitrarily combined as long as the gist of the invention is not deviated.

Information processing equipment of the present disclosure are useful in the field desire to secure tamper resistance.

1 Information processing device 10 Housing 11 Magnetic card payment slot 12 Contact type IC card payment slot 13 User side 14 Display surface 15 Bottom surface 20 Main board 50 First flexible board 51 Electronic circuit 52 First contact 60 Support plate 61 Screw 62 Protrusion 100 Second flexible substrate 101 First region 102 Second region 103 Third region 104 Fourth region 105 Fifth region 106 Sixth region 110 Second contact 122 Hole 131, 132 Marker 200 Connection board α mounting surface

Claims (6)

An information processing device including a housing, a first electronic component, a second electronic component, and a connection board for connecting the first electronic component and the second electronic component .
The connection board includes a first flexible board including an electronic circuit to be protected and a second flexible board that encloses the electronic circuit.
The first flexible substrate includes a first contact and
The second flexible substrate includes a second contact and has a second contact.
The second flexible substrate can wrap the electronic circuit.
When the second flexible substrate encloses the electronic circuit, the first contact and the second contact are arranged inside the second flexible substrate in a state where they can contact each other .
A fixing mechanism for fixing the connection board to the housing is provided.
The fixing mechanism presses the connection board so that when the connection board is fixed to the information processing device, the first contact and the second contact come into contact with each other.
Information processing device. The second flexible substrate
The first region having the second contact and
A second region extending in the first direction from the first region and
A third region extending in the first direction from the second region and
A fourth region extending from the second region in the second direction intersecting the first direction,
A fifth region extending from the second region in a direction opposite to the second direction,
A sixth region extending from the first region in a direction opposite to the second direction,
To prepare
The information processing device according to claim 1. When the surface of the second flexible substrate on the side in contact with the first flexible substrate is used as the surface,
The second flexible substrate
The surface of the first region and the surface of the second region are bent so as to face each other.
The electronic circuit is wrapped in the second flexible substrate by being bent so that the front surfaces of the third region, the fourth region, and the fifth region and the back surface of the first region face each other.
The information processing device according to claim 2. A notch or hole for passing the first flexible substrate is provided between the second region and the fourth region.
A notch or a hole through which a sixth region of the second flexible substrate is passed is provided between the second region and the fifth region.
The information processing device according to claim 2 or 3. The fixing mechanism
The protrusions of the housing and
A support plate that supports the connection board is provided.
The information processing device according to any one of claims 1 to 4. The first electronic component is a touch panel.
The second electronic component is a printed circuit board.
The information processing device according to any one of claims 1 to 5 .

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