JP2014210126A - Information processing system, information processing devices, information processing program, and information processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing system which enables a user to enjoy an exclusive content without using expensive dedicated machines.SOLUTION: An information processing system 10 comprises a first information processing device 12 and a versatile second information processing device 16. The first information processing device 12 does not have a display device or a function for executing an application program. The second information processing device is a smartphone, etc. and has a display device and a function for executing an application program. The first information processing device transmits an encrypted program in which an application program is encrypted with different encryption keys by block, to the second information processing device. The second information processing device emulates a hardware environment for executing the application program, decrypts the encryption of the encrypted program by block and executes the application program by block. In response to request from the second information processing device, the first information processing device transmits a decryption key for the block of which encryption is to be decrypted, to the second information processing device.

Description

  The present invention relates to an information processing system, an information processing apparatus, an information processing program, and an information processing method, and in particular, an information processing system including an information processing apparatus that is communicably connected to another general information processing apparatus, and the information processing The present invention relates to an apparatus, an information processing program, and an information processing method.

An example of this type of information processing system is disclosed in Patent Document 1. In the game device of Patent Document 1, the CPU reads a game program from a cartridge that is detachably connected, executes the game program, and displays the execution result on a display device.
JP-A-2005-204755 [A63F 13/00]

  However, in this background art, an expensive dedicated game machine equipped with a display device is necessary to enjoy content such as a game (game program). Hereinafter, content enjoyed by a dedicated device or device such as a game machine will be referred to as “dedicated content”.

  Therefore, a main object of the present invention is to provide a novel information processing system, information processing apparatus, information processing program, and information processing method.

  Another object of the present invention is to provide an information processing system, an information processing apparatus, an information processing program, and an information processing method that allow users to enjoy dedicated content without using an expensive dedicated machine.

  A first invention is an information processing system including a first information processing apparatus and a general-purpose second information processing apparatus having a display unit. For example, the second information processing apparatus is an information processing apparatus or electronic device such as a smartphone or a tablet PC. The first information processing apparatus includes an acquisition unit and a program transmission unit. The acquisition unit acquires an application program. The program transmission unit transmits the application program acquired by the acquisition unit to the second information processing apparatus. The second information processing apparatus includes an emulator unit and a display control unit. The emulator unit imitates the environment for the application program, and executes the application program transmitted by the program transmission unit on behalf of the first information processing apparatus that does not have the processing function of the application program. That is, the second information processing apparatus emulates the hardware environment of another dedicated machine that can execute the application program, and executes the application program. The display control unit displays the execution result of the emulator unit on the display unit. Therefore, the first information processing apparatus may not include a display unit.

  According to the first invention, since a general-purpose second information processing device having a display unit is used, it is not necessary to provide a display device in the first information processing device, and the price of the first information processing device can be suppressed as much as possible. it can.

  In addition, since the first information processing apparatus acquires the application program and transmits it to the second information processing apparatus that emulates another dedicated machine that can execute the application program, the application executed by the second information processing apparatus The program is not limited, and the second information processing apparatus can be used to enjoy dedicated content from other dedicated machines.

  A second invention is dependent on the first invention, and the information processing system further includes a storage medium for storing the application program. The first information processing apparatus further includes a connection unit for connecting to the storage medium. Therefore, the acquisition unit acquires the application program from the storage medium. For example, an application program is acquired from an external storage medium such as a memory card or a disk.

  According to the second invention, it is possible to enjoy the exclusive content recorded in the package.

  A third invention is dependent on the first invention, and the second information processing apparatus further includes a communication unit connected to the network. Therefore, the acquisition unit acquires the application program received from the network by the communication unit from the second information processing apparatus. For example, an application program is downloaded from a predetermined server by connecting to a network such as the Internet.

  According to the third invention, the downloaded dedicated content can be enjoyed.

  A fourth invention is dependent on any one of the first to third inventions, and the first information processing apparatus has an encryption unit for encrypting the application program and a release key for releasing the encrypted application program. A release key generation unit for generating and a release key transmission unit for transmitting the release key generated by the release key generation unit to the second information processing apparatus are further provided. The program transmission unit transmits the application program encrypted by the encryption unit to the second information processing apparatus.

  According to the fourth invention, since the encrypted application program and the release key for releasing the encryption are transmitted to the second information processing apparatus, the program is stored in a secure area that cannot be accessed by the user in the second information processing apparatus. By doing so, it is possible to appropriately handle dedicated content that is protected by copyright.

  A fifth invention is dependent on the fourth invention, and the release key transmission unit transmits the release key to the second information processing apparatus when executing the application program in the emulator unit.

  According to the fifth invention, the release key is transmitted when necessary to execute the application. Otherwise, the encrypted application program and the release key are not aligned. Opportunities to acquire can be reduced as much as possible.

  A sixth invention is dependent on the fourth or fifth invention, the encryption unit encrypts the application program so that the application program can be released with a different release key for each of the plurality of portions, and the release key generation unit includes a plurality of release key generation units. A plurality of different release keys are generated for each of the portions.

  According to the sixth aspect, security can be improved and dedicated content can be handled more appropriately.

  A seventh invention is dependent on the sixth invention, and the release key transmitting unit continuously transmits a plurality of release keys part by part.

  According to the seventh aspect, since the release key is transmitted part by part, if the release key is overwritten on the second information processing apparatus side, the encrypted application program and all the release keys are aligned. It can be avoided.

  An eighth invention is dependent on any one of the fourth to seventh inventions, and the second information processing device sends a request for a release key to the first information processing device according to execution of the application program by the emulator unit. A release key requesting unit is further provided. The release key transmission unit transmits a release key in response to a request from the second information processing apparatus. For example, when the application program for each part is sequentially executed on the second information processing apparatus side, transmission of a release key is requested at a necessary timing.

  According to the eighth aspect, since the release key is transmitted as necessary, it is possible to prevent the release key from being illegally acquired. Therefore, dedicated content can be handled appropriately.

  A ninth invention is dependent on any one of the fourth to eighth inventions, and the program transmission unit uses the path having a higher communication speed than the release key transmission unit to transmit the encrypted application program to the second information. Send to processing device. That is, for an encrypted application program with a large amount of data, a path with a high communication speed is used.

  According to the ninth aspect, data can be transferred at high speed.

  A tenth invention is dependent on any one of the fourth to eighth inventions, wherein the first information processing device and the second information processing device are connected to be communicable by wire and wireless, and the program transmission unit is The encrypted application program is transmitted to the second information processing device by wire, and the release key transmission unit wirelessly transmits the release key to the second information processing device. That is, an application program with a large amount of data is transmitted by wired communication whose communication speed is faster than wireless. On the other hand, release key data with a relatively small amount of data is transmitted wirelessly.

  According to the tenth aspect, the encrypted application program and the release key can be transmitted to the second information processing apparatus by an appropriate method according to the data amount.

  An eleventh invention is dependent on any one of the fourth to tenth inventions, and the emulator unit stops execution of the application program when it no longer receives the release key from the release key transmission unit. For example, the execution of the application program is stopped when the release key is not received even after a predetermined time has elapsed since the request for the release key was sent. Accordingly, transmission of the release key is not requested thereafter.

  According to the eleventh aspect of the present invention, for example, an unintended fraudulent act in which a release key is obtained illegally can be prevented.

  A twelfth invention is according to the eighth invention, and the release key transmission unit stops the transmission of the release key when the request from the second information processing apparatus is incorrect. For example, the second information processing apparatus requests transmission of a release key together with information on a necessary release key. The first information processing apparatus stops the transmission of the release key when there is an error in the information regarding the release key.

  In the twelfth invention, similarly to the eleventh invention, unintentional fraudulent acts can be prevented.

  A thirteenth invention is dependent on any one of the fourth to twelfth inventions, and the encryption unit encrypts the application program by using identification information unique to the first information processing apparatus.

  According to the thirteenth aspect, since the application program is encrypted using the identification information unique to the first information processing apparatus, the dedicated content can be handled appropriately as long as this unique identification information does not leak outside. .

  A fourteenth invention is dependent on any one of the first to thirteenth inventions, wherein the first information processing device transmits operation data from the operation input unit and the operation input unit to the second information processing device. A transmission unit is further provided.

  According to the fourteenth aspect, the operability can be improved by providing the first information processing apparatus with an input unit including operation means such as buttons and switches that are not provided in the second information processing apparatus.

  A fifteenth invention is dependent on any one of the first to fourteenth inventions, and the second information processing apparatus has a higher processing capability than the first information processing apparatus. For example, the second information processing apparatus has a processing capability for executing an application program. On the other hand, the first information processing apparatus acquires the application program, encrypts it, transmits the encrypted application program, and transmits the release key, but does not need to execute the application program. Therefore, the second information processing apparatus has a higher processing capability than the first information processing apparatus.

  According to the fifteenth aspect, since the first information processing apparatus does not have to have high processing capability, the first information processing apparatus can be configured using relatively inexpensive parts.

  According to a sixteenth aspect of the present invention, there is provided an emulator for imitating an environment for an application program and executing an application program transmitted from an information processing apparatus on behalf of the information processing apparatus not having the processing function of the application program An information processing device that is communicably connected to another general-purpose information processing device and includes a display control unit that displays an execution result of the emulator unit on the display unit, and an acquisition unit that acquires an application program The information processing apparatus includes a program transmission unit that transmits the application program acquired by the acquisition unit to another information processing apparatus.

  According to a seventeenth aspect of the present invention, there is provided an emulator that imitates an environment for an application program and executes an application program transmitted from an information processing apparatus on behalf of the information processing apparatus that does not have the processing function of the application program. And an information processing program executed by the information processing apparatus, communicably connected to another general-purpose information processing apparatus, including a display control unit that displays the execution result of the emulator unit on the display unit, An information processing program that causes a computer of a processing device to function as an acquisition unit that acquires an application program and a program transmission unit that transmits the application program acquired by the acquisition unit to another information processing device.

  An eighteenth invention imitates an environment for a display unit and an application program, and executes an application program transmitted from the information processing apparatus on behalf of the information processing apparatus that does not have the processing function of the application program And an information processing method of the information processing apparatus connected to the other general-purpose information processing apparatus in a communicable manner, including a display control unit that displays the execution result of the emulator unit on the display unit. The computer is an information processing method in which (a) an application program is acquired, and (b) the application program acquired in step (a) is transmitted to another information processing apparatus.

  In the sixteenth to eighteenth inventions, similarly to the first invention, the price of the information processing apparatus can be suppressed as much as possible, and the dedicated contents of other dedicated machines can be enjoyed using other information processing apparatuses. it can.

  According to the present invention, since the general-purpose second information processing apparatus having the display unit is used, it is not necessary to provide a display apparatus in the first information processing apparatus, and the price of the first information processing apparatus can be suppressed as much as possible.

  In addition, since the first information processing apparatus acquires the application program and transmits it to the second information processing apparatus that emulates another dedicated machine that can execute the application program, the application executed by the second information processing apparatus The program is not limited, and the second information processing apparatus can be used to enjoy dedicated content from other dedicated machines.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

FIG. 1 is a block diagram showing an electrical configuration of an information processing system according to an embodiment of the present invention. FIG. 2 is a diagram conceptually showing the program storage area of the ROM built in the memory card of the information processing system. FIG. 3 is an illustrative view showing one example of a memory map of a RAM built in the first information processing apparatus shown in FIG. FIG. 4 is an illustrative view showing one example of a memory map of a RAM built in the second information processing apparatus shown in FIG. FIG. 5 is a flowchart showing the information processing of the CPU built in the first information processing apparatus shown in FIG. FIG. 6 is a flowchart showing a part of the information processing of the CPU built in the second information processing apparatus shown in FIG. FIG. 7 is another part of the information processing of the CPU built in the second information processing apparatus shown in FIG. 1, and is a flowchart subsequent to FIG.

  Referring to FIG. 1, an information processing system 10 according to an embodiment of the present invention includes a first information processing device 12, a memory card 14, and a second information processing device 16. The first information processing device 12 and the second information processing device 16 are connected by a cable 18. That is, the first information processing apparatus 12 and the second information processing apparatus 16 are connected so as to be communicable with each other by wire.

  The first information processing apparatus 12 includes a CPU 20, and the CPU 20 is connected to a RAM 24, a ROM 26, a wireless module 28, an interface circuit (I / F circuit) 30 and a connector 32 via an internal bus 22. In addition, a controller 34 and a USB connector 36 are connected to the I / F circuit 30.

  The CPU 20 governs overall control of the first information processing apparatus 12. The RAM 24 is used as a buffer area or working area for the CPU 20. The ROM 26 stores a program for operating the first information processing apparatus 12 and stores predetermined data. The predetermined data corresponds to data of unique identification information (device ID) assigned to the first information processing device 12.

  The wireless module 28 has a function of being communicably connected to other information processing apparatuses and computers, or connected to a wireless LAN. As the wireless module 28, for example, a wireless LAN (Wi-Fi) module or a Bluetooth (registered trademark) module can be used.

  The controller 34 is input means including a cross key, an analog joystick, an operation button, and the like. The controller 34 may be configured separately from the main body of the first information processing apparatus 12 and connected to the first information processing apparatus 12 by a cable or the like. Alternatively, the first information processing apparatus 12 and the controller 34 may be integrated by providing the above-described keys, buttons, and the like in the casing of the first information processing apparatus 12.

  Operation data from the controller 34 is input to the CPU 20 via the I / F circuit 30 and the internal bus 22. Various data input from the USB connector 36 are also input to the CPU 20 via the I / F circuit 30 and the internal bus 22. On the other hand, the CPU 20 outputs the data stored in the RAM 24 from the USB connector 36 via the internal bus 22 and the I / F circuit 30. The memory card 14 is detachably connected to the connector 32.

  The memory card 14 includes a ROM 14a and a RAM 14b. Although not shown, the ROM 14a and the RAM 14b are connected to each other via a bus and further connected to a connector (not shown) joined to the connector 32. Therefore, as described above, when the memory card 14 is attached to the first information processing apparatus 12, the CPU 20 can access the ROM 14a and the RAM 14b.

  The ROM 14a stores application programs for applications (for example, games) to be executed by the second information processing device 16, image (for example, character images, object images, background images, item images, etc.) data and sounds (for example, sound effects). And music) data (sound data) and the like are stored in advance. The RAM (backup RAM) 14b stores save data.

  Next, although the electrical configuration of the second information processing device 16 will be described, redundant description of the same components as those described in the first information processing device 12 will be omitted.

  The second information processing device 16 includes a SoC (System-on-a-Chip) 50 configured by a CPU 50a, a GPU, a VRAM (Video RAM), a DSP, and the like. A RAM 54, a secure memory 56, an LCD 58, an I / F circuit 60, and a wireless module 62 are connected to the SoC 50 via an internal bus 52. An input device 64 and a USB connector 66 are connected to the I / F circuit 60.

  As the second information processing device 16, a general-purpose information processing device such as a smartphone or a tablet PC can be used. However, FIG. 1 shows only components necessary in this embodiment among components provided in a general-purpose information processing apparatus.

  The secure memory 56 is a memory that cannot be accessed by a user operation, and stores, for example, data about content (a predetermined application such as a game) protected by copyright. The LCD 58 displays an image corresponding to the image data held in the VRAM under the instruction of the CPU 50a. For example, an image about the processing result of the application program executed by the CPU 50a is displayed. The wireless module 62 is the same as the wireless module 28, but the same communication method as the wireless module 28 is adopted. Therefore, the first information processing device 12 and the second information processing device 16 are connected so as to be communicable even by radio. For example, in this embodiment, IEEE802.11b standard modules are used for the wireless modules (28, 62), and the maximum communication speed is 22 (Mbps).

  The input device 64 is input means such as operation buttons and a touch panel. However, the touch panel is disposed on the display surface of the LCD 58. Operation data and coordinate data input from the input device 64 are provided to the SoC 50 (CPU 50a) via the I / F circuit 60. Further, the USB connector 36 and the USB connector 66 are connected by the cable 18 described above. Therefore, data can be transmitted and received between the first information processing apparatus 12 and the second information processing apparatus 16 via the cable 18. For example, in this embodiment, connectors (36, 66) and a cable 18 conforming to the USB 2.0 standard are used, and the maximum communication speed is 480 (Mbps). Therefore, the communication speed of the cable 18 is higher than that of the wireless communication using the wireless modules (22, 62).

  Generally, a memory card that stores application programs such as game software is mounted on a dedicated game machine and executed. Such a dedicated game machine is expensive because it includes a display device such as an LCD. In addition, information processing apparatuses including a display device such as smartphones and tablet PCs are becoming popular.

  Therefore, in the information processing system 10 of this embodiment, an external storage medium such as a memory card is used by using a display device of a general-purpose information processing device (second information processing device 16) represented by a smartphone or a tablet PC. The dedicated content (application program) stored in the information processing apparatus can be enjoyed using an inexpensive information processing apparatus (first information processing apparatus 12).

  Briefly, the first information processing device 12 does not have a display device for displaying an image such as a game screen, and as will be described later, the first information processing device 12 is more CPU-intensive than the general-purpose second information processing device 16. The processing capacity of (20) is low. The first information processing apparatus 12 acquires an application program from the memory card 14 attached to the first information processing apparatus 12 and transmits the application program to the second information processing apparatus 16. The second information processing device 16 is emulated in a hardware environment that can execute the application program stored in the memory card 14, and the application program is executed by the second information processing device 16. However, the second information processing device 16 may not include the input device 64 sufficient to operate an application such as a game. For this reason, the controller 34 as described above is provided in the first information processing apparatus 12.

  As described above, since the application program acquired from the memory card 14 is executed by the second information processing apparatus 16, it is necessary to appropriately handle the application program to be protected by copyright or the like. Therefore, in this embodiment, the application program is encrypted, and the encrypted application program (hereinafter referred to as “encrypted program”) is stored in a secure area (secure memory 56) that cannot be accessed by a user operation. It is like that.

  Further, when the encryption of the encryption program is released (decryption of the encryption program), if all of the application program is expanded in the RAM 54, the application program may be illegally acquired. For this reason, the first information processing apparatus 12 divides the application program into a plurality of parts and performs encryption with different encryption keys for each part, and the second information processing apparatus 16 converts the encrypted application program into parts. Each time it is read out, the encryption is canceled, and the decrypted portion is executed.

  FIG. 2 is a diagram conceptually showing a program storage area of ROM 14a built in memory card 14 shown in FIG. A predetermined application program such as game software is stored in the program storage area of the ROM 14a. In this embodiment, the application program is encrypted and transmitted to the second information processing device 16, but as described above, the application program is divided into blocks according to the address of the ROM 14a and divided. Encryption is performed for each block. Hereinafter, the application program for each block is referred to as a “partial program”.

  As shown in FIG. 2, the program storage area of the ROM 14a is divided into a plurality of blocks (in this embodiment, n blocks). For example, the first block has addresses “000000”-“1FFFFF”, the second block has addresses “200000”-“3FFFFF”, the third block has addresses “400000”-“5FFFFF”, and the fourth block The address is “600000” − “7FFFFF”, the middle is omitted, and the nth block is the address “E00000” − “FFFFFF”. As described above, in the example illustrated in FIG. 2, each block is divided into a plurality of blocks so that the data amount is the same. However, the present invention is not limited to this. There are various ways of dividing blocks depending on the configuration of the application program.

  In this embodiment, the partial program of each block is encrypted with a different release key (decryption key) so that the encryption can be released (plain culture). As the encryption method, a general method such as a common key encryption method or a public key encryption method can be adopted. However, in this embodiment, the encryption key and the release key are generated using the unique information of the first information processing apparatus 12 and the unique information of each block. For example, the unique information of the first information processing device 12 is the device ID stored in the ROM 26 and / or the MAC address of the wireless module 28. Further, the unique information of each block is a head address or / and a tail address of each block. However, the unique information of each block may be assigned separately.

  The partial program encrypted with a different encryption key for each block (hereinafter referred to as “encrypted partial program”) is stored in the second information via the internal bus 22, I / F circuit 30, USB connector 36 and cable 18. It is transmitted to the processing device 16. When the second information processing apparatus 16 receives the encryption program, the encryption program is given to the SoC 50 (CPU 50a) via the USB connector 66, the I / F circuit 60, and the internal bus 52. The CPU 50 a stores the encrypted program in the secure memory 56 via the internal bus 52.

  The second information processing device 16 executes an emulation program in accordance with a user operation, and emulates another dedicated machine (for example, a dedicated game machine) that can execute an application program (for example, a game program) corresponding thereto. Then, the application program of the other dedicated machine is emulated on the second information processing apparatus 16. In other words, another dedicated machine is emulated, and the application program is executed on the emulated virtual hardware. In this way, the second information processing apparatus 16 executes the application program in place of the first information processing apparatus 12 that does not have the function of executing the application program.

  However, the emulation program is generated for each application program. For example, the emulation program is downloaded when the second information processing apparatus 16 accesses a predetermined server. The emulation program may be stored in the memory card 14 together with the application program. In such a case, the first information processing apparatus 12 transmits the emulation program to the second information processing apparatus 16 prior to transmission of the application program.

  During the execution of the application program, the first information processing apparatus 12 receives the release key for releasing the encryption of the encrypted partial program of the requested block in response to the request from the second information processing apparatus 16. Transmit to the processing device 16.

  For example, in the second information processing device 16, the partial program is executed in order from the first block, and when the execution of the partial program for the first block is finished, the partial program of the next block (second block) is executed. Is done. However, since the partial program is encrypted, the encryption of the corresponding encrypted partial program is released prior to the execution of the partial program.

  Specifically, in the second information processing device 16, the encrypted partial program of the block to be processed next is read from the secure memory 56 and written to the RAM 54. At this time, the first information processing apparatus 12 is requested to transmit a release key for releasing the encryption of the encrypted partial program of the block. That is, transmission of a release key designated as an address (processing address) for processing the head address of the block is requested. In response to this, the release key data (release key data) transmitted from the first information processing device 12 is received by the second information processing device 16, and the encryption read from the secure memory 56 using the release key. The encryption of the partial program is released and written to the RAM 54. Then, the partial program that has been decrypted is executed.

  Such processing is repeated, and partial programs are sequentially executed up to the last block (in this embodiment, the nth block). Therefore, the first information processing apparatus 12 continuously transmits partly release key data corresponding to a plurality of release keys every time there is a request from the second information processing apparatus 16.

  However, in this embodiment, when the processing address specified by the second information processing device 16 is an address that the first information processing device 12 does not assume, the first information processing device 12 makes an error in the request. It is judged that there is, and transmission of the release key data is stopped.

  Further, the second information processing device 16 does not receive the release key data from the first information processing device 12 even after a predetermined time (for example, several tens of frames) has elapsed since the request for the release key. Stop the rate. That is, the execution of the emulation program is interrupted. However, the frame is a unit time (1/60 seconds) for screen update.

  In this way, the second information processing device 16 side stops the emulation when the release key data is not received even after a predetermined time has elapsed after requesting the transmission of the release key. This is because there is a possibility that an unintentional act such as an attempt to obtain fraud is performed.

  Further, as described above, when the first information processing apparatus 12 determines that there is an error in the request, the transmission of the release key data is stopped by an unintentional action such as an unauthorized program being executed. This is because it may be done. In such a case, as a result, the emulation is stopped on the second information processing apparatus 16 side.

  However, the release key request and release key data are transmitted and received using the wireless modules (28, 62). Although detailed description is omitted, during the execution of the application program, the operation data input from the controller 34 is also transmitted and received using the wireless modules (28, 62).

  As described above, since the request for the release key, the release key data, and the operation data are transmitted and received using the wireless modules (28, 62), the cable 18 is removed after the encryption program is transmitted and received, and the first information processing apparatus 12 and the second information processing apparatus 16 can communicate with each other wirelessly.

  The encryption program can also be transmitted / received using the wireless modules (28, 62). However, since the data amount is large, the encryption program is transmitted / received via the cable 18 at high speed. On the other hand, the release key request, release key data, and operation data are transmitted and received wirelessly with an emphasis on operability because there is no problem in using a route with a small data amount and a low communication speed. . That is, by removing the cable 18, the movable range of the first information processing device 12 or the controller 34 is increased, and the operability is improved.

  FIG. 3 shows an example of the memory map 100 of the RAM 24 built in the first information processing apparatus 12 shown in FIG. As shown in FIG. 3, the RAM 24 includes a program storage area 102 and a data storage area 104.

  The program storage area 102 stores an information processing program read from the ROM 26. The information processing program includes a main processing program 102a, a communication program 102b, an acquisition program 102c, a key generation program 102d, an encryption program 102e, and the like. .

  The main processing program 102 a is a program for processing a main routine of information processing of the first information processing apparatus 12. The communication program 102b uses the USB connector 36 or the wireless module 28 to communicate with another information processing apparatus (in this embodiment, the second information processing apparatus 16) or a computer, or to connect to a wireless LAN. It is a program. The acquisition program 102c is a program for acquiring an application program. In this embodiment, the application program is acquired from the memory card 14 attached to the first information processing apparatus 12.

  The key generation program 102d generates an encryption key for encrypting the acquired application program for each block and a release key (decryption key) for releasing the encryption of the encrypted partial program for each encrypted block. It is a program for. As described above, since it is necessary to generate a different release key for each block, not only the unique information of the first information processing apparatus 12 but also the unique information of the block is used for generating the key.

  The encryption program 102e is a program for encrypting a partial program for each block using an encryption key generated according to the key generation program 102d.

  The data storage area 104 stores encrypted program data 104a and release key data 104b. The encrypted program data 104a is a partial program encrypted for each block in accordance with the encrypted program 102e, that is, data on the encrypted partial program. The encryption program 102e includes encrypted partial programs corresponding to all partial programs constituting the application program.

  The release key data 104b is data on the release key generated according to the key generation program 102d. As described above, since the application program is encrypted for each block, the release key data 104b includes release key data for releasing the encryption of the encrypted partial program for each block.

  FIG. 4 shows an example of the memory map 200 of the RAM 54 built in the second information processing apparatus 16 shown in FIG. As shown in FIG. 4, the RAM 54 includes a program storage area 202 and a data storage area 204.

  The program storage area 202 stores an information processing program of the second information processing apparatus 16, and the information processing program includes a main processing program 202a, a communication program 202b, an emulation program 202c, a cancellation program 202d, a partial program 202e, and the like.

  The main processing program 202a is a program for processing a main routine of information processing of the second information processing device 16. The communication program 202b uses the USB connector 66 or the wireless module 62 to communicate with another information processing apparatus (the first information processing apparatus 12 in this embodiment) or a computer, or to connect to a wireless LAN. It is a program. The emulation program 202c emulates the hardware environment of another dedicated machine (for example, a dedicated game machine) capable of executing an application program (an application program corresponding to all encrypted partial programs stored in the secure memory 56). It is a program to do. The cancellation program 202d is a program for canceling the encryption of the encryption program using the cancellation key. The partial program 202e is a program for a part of the application program that has been decrypted with the release key. In this embodiment, when the encrypted partial program is decrypted for each block and written to the program storage area 202, the partial program of the previous block is overwritten.

  In this way, the partial program that has been decrypted this time is overwritten on the partial program of the previous block, so that all the partial programs are not stored in the RAM 54 at the same time. Therefore, security can be ensured. However, even if all the partial programs are stored in the RAM 54, the security can be similarly secured by deleting all of them at the same time as the end of the application.

  In addition, although illustration is abbreviate | omitted, when using a smart phone as the 2nd information processing apparatus 16, the program according to various functions, such as a telephone function, a schedule function, an alarm function, is also memorize | stored.

  In the data storage area 204, release key data 204a is stored. The release key data 204a is transmitted from the first information processing apparatus 12, and when new release key data 204a is received, the previous release key data 204a is overwritten.

  Specifically, when the CPU 20 of the first information processing apparatus 12 executes the information processing shown in FIG. 5, the application program is acquired, the application program is encrypted for each block, and the encryption program and the release key are set to the first. 2 is transmitted to the information processing device 16. On the other hand, when the CPU 50a of the second information processing device 16 executes the information processing shown in FIGS. 6 and 7, the encryption program is received, the release key is requested to be transmitted, the release key is received, and the encryption program is received. Is decrypted.

  Although illustration is omitted, operation data is output from the wireless module 28 of the first information processing device 12 when the controller 34 is operated when the application program is being executed by the emulated second information processing device 16. Is done. The operation data is received by the wireless module 62 of the second information processing apparatus 16 and given to the CPU 50a. Accordingly, the processing of the application is changed according to the operation data from the controller 34. However, since the second information processing device 16 also includes the input device 64, operation data may be input from the input device 64.

  For example, when the main power supply of the first information processing apparatus 12 is turned on, the CPU 20 starts information processing as shown in FIG. 5, and acquires the application program from the ROM 14a built in the memory card 14 in step S1. To do. In the subsequent step S3, an encryption key and a release key are generated. As described above, the encryption key and the release key for each block are generated using the unique information of the first information processing apparatus 12 and the unique information of each block.

  In the next step S5, the acquired application program is encrypted for each block. Here, the partial program of each block is encrypted using the encryption key generated corresponding to each block. Subsequently, the encryption program is transmitted to the second information processing device 16 in step S7. That is, the CPU 20 outputs all encrypted partial programs to the USB connector 36 via the internal bus 22 and the I / F circuit 30. Here, the first information processing apparatus 12 and the second information processing apparatus 16 have been described on the assumption that they are connected by the cable 18, but if they are not connected by the cable 18, a warning lamp is displayed. It may turn on, output a warning sound, or both. In this case, the first information processing apparatus 12 may be provided with a display such as a warning lamp or a speaker.

  In the next step S9, it is determined whether or not there is a request for a release key from the second information processing device 16. That is, the CPU 20 determines whether it is the transmission timing of the release key. If “NO” in the step S9, that is, if there is no request for a release key, the process returns to the step S9 as it is. Here, if “NO” in the step S9, the process returns to the same step S9 as it is. However, if there is no request for a release key after a predetermined time, the information processing may be ended. Good.

  On the other hand, if “YES” in the step S9, that is, if there is a request for a release key, it is determined whether or not the processing address included in the request is an expected processing address in a step S11. That is, it is determined whether or not the processing address indicates the head address of the next block. If “NO” in the step S11, that is, if the processing address is not expected, the information processing is ended as it is to end the emulation. On the other hand, if “YES” in the step S11, that is, if the processing address is expected, a release key corresponding to the processing address is transmitted to the second information processing apparatus 16 in a step S13. That is, the release key for the next block is transmitted.

  In step S15, it is determined whether all the release keys have been transmitted. If “NO” in the step S15, that is, if there is a release key that has not been transmitted, the process returns to the step S9. On the other hand, if “YES” in the step S15, that is, if all the release keys are transmitted, the information processing is ended.

  As described above, the first information processing apparatus only acquires the application program, encrypts it, and transmits the encryption program, the release key data, and the operation data, and does not need the ability to execute the application program. The processing capability of the CPU 20 may be lower than the CPU 50a of the second information processing apparatus. Therefore, the first information processing apparatus 12 can be configured with relatively inexpensive parts.

  In the second information processing apparatus 16, when the emulation program 202c is executed according to the user's instruction, the CPU 50a starts information processing as shown in FIG. 6, and whether the encryption program is received in step S31. Judge whether. If “NO” in the step S31, that is, if the encryption program is not received, the process returns to the same step S31 as it is. However, if the encryption program is not received after a predetermined time, there may be a failure such as the cable 18 not being connected. In such a case, a warning message is displayed on the LCD 58. Or a warning sound is output from a speaker (not shown), or both of them are performed.

  Although illustration is omitted, the CPU 50a executes an emulation program and an application program in parallel with the information processing shown in FIGS. However, the application program is executed for each partial program.

  On the other hand, if “YES” in the step S31, that is, if the encrypted program is received, the received encrypted program is stored in the secure memory 56 in a step S33. In step S35, it is determined whether it is time to acquire the release key. At the beginning of the information processing, it is time to acquire the release key immediately. However, in the second and subsequent times, depending on the execution (progress) of the partial program that has been decrypted, the partial encryption program of the next block It is determined whether it is the timing for releasing the encryption, that is, the timing for obtaining the release key.

  If “NO” in the step S35, that is, if it is not the timing for acquiring the release key, the process returns to the same step S35 and waits for the timing for acquiring the release key. On the other hand, if “YES” in the step S35, that is, if it is the timing for acquiring the release key, in step S37, a processing address is designated and the first information processing device 12 is requested to transmit the release key. This request is transmitted from the communication module 62. The processing address is a start address of a block in the ROM 14a in which a partial program next to the currently executed partial program is stored.

  As shown in FIG. 7, in the next step S39, it is determined whether or not a release key has been received. If “NO” in the step S39, that is, if the cancel key is not received, it is determined whether or not a predetermined time (for example, several tens of frames) has elapsed since the request for the cancel key is transmitted in a step S41. . The time after requesting the transmission of the release key is counted by a timer (not shown).

  If “NO” in the step S41, that is, if a predetermined time has not elapsed since the request for transmitting the release key has been made, the process returns to the step S39 as it is. On the other hand, if “YES” in the step S41, that is, if a predetermined time elapses after the transmission of the release key is requested, the process proceeds to a step S49.

  If “YES” in the step S39, that is, if a release key is received, the encryption of the encrypted partial program for the corresponding block is released using the received release key in a step S43. At this time, the corresponding encrypted partial program is read from the secure memory 56 into the RAM 54. Although not shown, the received release key is stored in the data storage area 204. In a succeeding step S45, the program storage area 202 is overwritten with the decrypted partial program (202e).

  In step S47, it is determined whether the application is terminated. Here, the CPU 50a determines whether or not the processing of the application being executed in parallel has ended. If “NO” in the step S47, that is, if the application is not ended, the process returns to the step S35 shown in FIG. That is, it is determined whether it is time to acquire a release key for the next block.

  On the other hand, if “YES” in the step S47, that is, if the application is to be ended, the execution of the emulation program 202c is stopped and the information processing is ended in a step S49.

  According to this embodiment, since a general-purpose second information processing apparatus having an LCD is used, it is not necessary to provide a display device in the first information processing apparatus, and the price of the first information processing apparatus can be suppressed as much as possible.

  In this embodiment, the first information processing apparatus acquires the application program and transmits it to the second information processing apparatus that emulates another dedicated machine that can execute the application program. The application program to be executed is not limited, and the second information processing apparatus can be used to enjoy the exclusive content of another dedicated machine.

  Furthermore, in this embodiment, since it is not necessary to provide a display device for displaying an image on the LCD of the second information processing apparatus and displaying the image on the first information processing apparatus, it is possible to effectively use existing resources. it can.

  In this embodiment, the case where the application program is acquired from the memory card has been described. However, the present invention is not limited to this. It may be acquired from a network such as the Internet. For example, a predetermined server can be accessed and downloaded. In such a case, a second information processing apparatus such as a smartphone accesses a predetermined server and downloads an application program. However, since it is necessary to encrypt the application program in the first information processing apparatus, the downloaded application program is transmitted as it is from the second information processing apparatus to the first information processing apparatus, and the RAM of the first information processing apparatus Is remembered. In such a case, the block of the partial program is managed by the RAM address.

  Further, the application program may be obtained from another storage medium (such as a disk or a USB memory) instead of the memory card. However, it is necessary to provide the first information processing apparatus with an interface or a device corresponding to another storage medium. Also in this case, the acquired application program is stored in the RAM of the first information processing apparatus.

  Thus, when the acquired application program is stored in the RAM of the first information processing apparatus, encryption is performed in units of blocks according to the RAM address.

  In this embodiment, the partial program for each block is encrypted. However, the entire application program may be encrypted so as to be releasable with one release key. In such a case, for example, the application program may be deleted after the application program is executed. In other words, it is sufficient to take care not to illegally acquire the application program.

  Furthermore, in this embodiment, the first information processing apparatus transmits the release key in response to a request from the second information processing apparatus, but the present invention is not limited to this. As described with reference to FIG. 2, when the application program is divided into a plurality of blocks, the data amount of each block is the same, so the first information processing apparatus sequentially issues a release key every predetermined time. You may make it transmit to a 2nd information processing apparatus.

  Furthermore, in this embodiment, the USB standard is applied to the wired communication, but other standards may be applied. For example, IEEE 1394, Serial ATA (SATA), InfiniBand, PCI Express, Serial Attached SCSI, and Fiber Channel can be applied.

  In addition, the specific numerical value shown in this Example is only an example, and is suitably changed according to an actual product.

DESCRIPTION OF SYMBOLS 10 ... Information processing system 12 ... 1st information processing apparatus 14 ... Memory card 16 ... 2nd information processing apparatus 20, 50a ... CPU
24, 54 ... RAM
28, 62 ... wireless module 32 ... connector 34 ... controller 36, 66 ... USB connector 50 ... SoC
56 ... Secure memory 58 ... LCD
64: Input device

Claims (18)

An information processing system including a first information processing device and a general-purpose second information processing device having a display unit,
The first information processing apparatus
An acquisition unit for acquiring an application program;
A program transmission unit that transmits the application program acquired by the acquisition unit to the second information processing apparatus;
The second information processing apparatus
An emulator unit that imitates the environment for the application program and executes the application program transmitted by the program transmission unit on behalf of the first information processing apparatus that does not have the processing function of the application program;
An information processing system comprising a display control unit for displaying an execution result by the emulator unit on the display unit. A storage medium for storing the application program;
The first information processing apparatus further includes a connection unit for connecting to the storage medium,
The information processing system according to claim 1, wherein the acquisition unit acquires the application program from the storage medium. The second information processing apparatus further includes a communication unit connected to a network,
The information processing system according to claim 1, wherein the acquisition unit acquires the application program received from the network by the communication unit from the second information processing apparatus. The first information processing apparatus is generated by an encryption unit that encrypts the application program, a release key generation unit that generates a release key that releases the encrypted application program, and the release key generation unit. A release key transmission unit for transmitting a release key to the second information processing apparatus;
The information processing system according to claim 1, wherein the program transmission unit transmits the application program encrypted by the encryption unit to the second information processing apparatus.   The information processing system according to claim 4, wherein the release key transmission unit transmits the release key to the second information processing apparatus when the application unit is executed in the emulator unit. The encryption unit encrypts the application program so that each of a plurality of parts can be released with a different release key,
The information processing system according to claim 4 or 5, wherein the release key generation unit generates a plurality of different release keys for each of the plurality of portions.   The information processing system according to claim 6, wherein the release key transmitting unit continuously transmits the plurality of release keys part by part. The second information processing device further includes a release key requesting unit that requests the first information processing device for a release key according to the execution of the application program by the emulator unit.
The information processing system according to claim 4, wherein the release key transmission unit transmits a release key in response to a request from the second information processing apparatus.   9. The program transmission unit according to claim 4, wherein the program transmission unit transmits the encrypted application program to the second information processing apparatus using a path having a higher communication speed than the release key transmission unit. Information processing system. The first information processing apparatus and the second information processing apparatus are connected to be communicable by wire and wireless,
The program transmission unit transmits the encrypted application program to the second information processing apparatus via the wire,
The information processing system according to claim 4, wherein the release key transmission unit transmits the release key to the second information processing apparatus wirelessly.   11. The information processing system according to claim 4, wherein the emulator unit stops the execution of the application program when it no longer receives the release key from the release key transmission unit.   The information processing system according to claim 8, wherein the release key transmission unit stops transmission of the release key when a request from the second information processing apparatus is incorrect.   The information processing system according to claim 4, wherein the encryption unit encrypts the application program using identification information unique to the first information processing apparatus. The first information processing apparatus
The information processing system according to claim 1, further comprising: an operation input unit; and an operation data transmission unit that transmits operation data from the operation input unit to the second information processing apparatus.   The information processing system according to any one of claims 1 to 14, wherein the second information processing apparatus has a higher processing capability than the first information processing apparatus. A display unit;
An emulator unit that imitates an environment for an application program and executes an application program transmitted from the information processing device on behalf of the information processing device that does not have the processing function of the application program;
An information processing apparatus comprising a display control unit for displaying an execution result by the emulator unit on the display unit, and connected to other general-purpose information processing apparatus in a communicable manner,
An acquisition unit for acquiring the application program;
An information processing apparatus comprising: a program transmission unit that transmits the application program acquired by the acquisition unit to the other information processing apparatus. A display unit;
An emulator unit that imitates an environment for an application program and executes an application program transmitted from the information processing device on behalf of the information processing device that does not have the processing function of the application program;
An information processing program executed by an information processing apparatus, connected to a general-purpose information processing apparatus, including a display control unit for displaying an execution result by the emulator unit on the display unit,
A computer of the information processing apparatus;
An acquisition unit for acquiring the application program;
An information processing program that causes the application program acquired by the acquisition unit to function as a program transmission unit that transmits the application program to the other information processing apparatus. A display unit;
An emulator unit that imitates an environment for an application program and executes an application program transmitted from the information processing device on behalf of the information processing device that does not have the processing function of the application program;
An information processing method for an information processing apparatus, comprising a display control unit for displaying an execution result by the emulator unit on the display unit, and being communicably connected to another information processing apparatus,
The computer of the information processing apparatus
(A) An information processing method for acquiring the application program, and (b) transmitting the application program acquired in the step (a) to the other information processing apparatus.

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