JP4834650B2 - Information processing device - Google Patents

Description

  The present invention relates to an information processing device capable of communicating with a plurality of wireless devices capable of performing predetermined authentication processing, a portable wireless device capable of performing predetermined authentication processing, an authentication method for the information processing device, and a program.

  In recent years, it has been determined that the reception strength of radio waves received from a wireless key, which is an example of a portable wireless device, is greater than or equal to a predetermined value, and that authentication with the wireless key has succeeded based on signals transmitted and received using the wireless communication An information processing apparatus having a wireless authentication function that unlocks the lock when the reception strength of the radio wave received from the wireless key is less than a predetermined value or when it is determined that the authentication with the wireless key has failed Has been proposed (for example, Patent Document 1). Examples of information processing devices that have been put to practical use include automobiles that perform wireless authentication with a wireless key to lock or unlock a door key, or reject or allow reception with an operation key by performing wireless authentication with a wireless key. Mobile phone, etc.

  In addition, when there are a plurality of wireless keys for performing wireless authentication with one information processing apparatus, an information processing apparatus capable of performing wireless authentication between any of the plurality of wireless keys and the information processing apparatus is known. (For example, refer to Patent Document 1).

JP 2004-143806 A

  In Patent Document 1, it is assumed that there is one wireless key and one information processing device. In this case, it is possible to easily select a key and perform wireless authentication. When performing wireless authentication between any of the above and the information processing apparatus, it was not possible to select a specific wireless key and perform wireless authentication. Accordingly, wireless authentication cannot be permitted only between the specific wireless key and the information processing apparatus.

  The present invention has been made in view of the above circumstances, and is an information processing device, a portable wireless device, an authentication method, and a program capable of permitting wireless authentication only between a specific portable wireless device and an information processing device. The purpose is to provide.

To achieve the above object, information processing apparatus of the present invention is a communication information processing apparatus capable between a predetermined plurality can be carried out authentication processing of the portable radio apparatus, identification of the portable radio device Based on the priority information, a storage unit that associates and stores priority information for performing the predetermined authentication process between the portable wireless device of the information and the identification information and the information processing device, and A device designating unit for designating a portable wireless device that performs the predetermined authentication process from a plurality of portable wireless devices; and an authentication processing unit for performing the predetermined authentication process between the portable wireless device designated by the device designating unit; , measuring a receiving unit, the receiving level of the search signal received by the receiving unit for receiving a search signal indicating a response from the portable radio apparatus for search request signal for searching for the portable radio device A reception level measurement unit, and the storage unit stores the identification information of the portable wireless device and the reception level of the search signal from the portable wireless device in association with the identification information, and stores the device designation The unit is configured to designate a portable wireless device that performs the predetermined authentication process from the plurality of portable wireless devices based on the reception level and the reception time of the search signal .

With this configuration, it is possible to permit wireless authentication only between a specific portable wireless device and an information processing device. For example, by setting a priority in advance, it is possible to select a portable wireless device having the highest priority as a device that performs a predetermined authentication process. Further, for example, it is possible to measure a reception level of a search signal and other signals and select a portable wireless device having the highest reception level as a device that performs predetermined authentication processing. Further, for example, it is possible to monitor the reception time of the search signal with respect to the search request signal and select the portable wireless device that has transmitted the first received search signal as a device that performs predetermined authentication processing.

Moreover, information processing apparatus of the present invention, the timing when the use authorization period indicating a period of releasing the portable radio apparatus in which at least a part of the function restriction designated by the apparatus designation section of the information processing apparatus is completed And when the predetermined period has elapsed since the device designation unit started the time measurement, and the reception level of the signal from the portable wireless device designated by the device designation unit is the time measurement. A switching target indicating a portable wireless device other than the portable wireless device designated by the device designating unit among the plurality of portable wireless devices based on the priority information, when continuously below a predetermined level after the start of The mobile radio apparatus that performs the predetermined authentication process is newly designated from the apparatus.

  With this configuration, for example, when a portable wireless device that performs authentication processing moves from the authentication area to an out-of-communication area outside the authentication area, the portable wireless device that performs predetermined authentication processing is switched to another portable wireless device. Is possible. For example, it is possible to switch to the portable wireless device with the highest priority among the other portable wireless devices.

Moreover, information processing apparatus of the present invention, the device designation section, when a predetermined time period from the start the time measurement has elapsed, and a portable radio apparatus designated by the apparatus designation section after the start of the time measurement When the reception level of the signal from the terminal is continuously lower than the predetermined level, a portable wireless device that performs the predetermined authentication process is newly designated from the switching target device based on the reception level.

  With this configuration, for example, when a portable wireless device that performs authentication processing moves from the authentication area to an out-of-communication area outside the authentication area, the portable wireless device that performs predetermined authentication processing is switched to another portable wireless device. Is possible. For example, it is possible to switch to a portable wireless device having the highest signal reception level among the other portable wireless devices.

Moreover, information processing apparatus of the present invention, the device designation section, when a predetermined time period from the start the time measurement has elapsed, and a portable radio apparatus designated by the apparatus designation section after the start of the time measurement When the reception level of the signal from is continuously below the predetermined level, the predetermined authentication process is performed from the switching target device based on the reception time of the search signal received by the receiving unit after the predetermined period has elapsed. The mobile wireless device to be performed is newly designated.

  With this configuration, for example, when a portable wireless device that performs authentication processing moves from the authentication area to an out-of-communication area outside the authentication area, the portable wireless device that performs predetermined authentication processing is switched to another portable wireless device. Is possible. For example, after the elapse of a predetermined period after moving to a non-communication area, it is possible to switch to the portable wireless device that transmitted the search signal first received by the information processing device among the other portable wireless devices.

Moreover, information processing apparatus of the present invention has a setting changing unit that changes the setting of the information processing apparatus, the storage unit is further the portable wireless device identification information and the identification information of the portable radio device And setting information of the information processing apparatus when the predetermined authentication process is performed between the information processing apparatus and the information processing apparatus, and the setting change unit performs the predetermined authentication process by the apparatus designating unit When a portable wireless device is newly designated, the setting of the information processing device is changed based on the setting information corresponding to the newly designated portable wireless device.

  With this configuration, when the portable wireless device that performs the predetermined authentication process is switched, the setting of the information processing apparatus can be changed according to the portable wireless device that performs the predetermined authentication process.

Moreover, information processing apparatus of the present invention, when the second mobile radio device is designated a new place in the first mobile wireless device as a mobile radio apparatus for performing predetermined authentication processing by the apparatus designation section, the The processing information recording unit stores the identification information of the first portable wireless device and the processing information processed by the information processing device when newly specified in association with each other and stores the information in the storage unit.

  With this configuration, at the time of switching the portable wireless device that performs a predetermined authentication process, the state of the information processing device and the contents processed at that time are stored as processing information in association with the identification information of the portable wireless device before switching. Is possible.

Moreover, information processing apparatus of the present invention, when the device the first mobile wireless device after the second mobile radio device is specified anew by the specified section is designated newly, the second mobile Based on the processing information corresponding to the wireless device, the information processing device has a state restoration unit that restores the state of the information processing device.

  With this configuration, when the portable wireless device that performs the predetermined authentication process is returned to the original portable wireless device, the state of the information processing device can be restored based on the processing information recorded as the resume information.

  According to the present invention, it is possible to permit wireless authentication only between a specific portable wireless device and an information processing device.

  Hereinafter, an information processing device, a portable wireless device, an authentication method, and a program according to an embodiment of the present invention will be described in detail.

  In the information processing apparatus according to the embodiment of the present invention, at least a part of the functions of the information processing apparatus is restricted from the viewpoint of improving security. Between the portable wireless device and the information processing device according to the embodiment of the present invention, a predetermined authentication process (wireless authentication) is performed by a communication authentication sequence described later in order to release this restriction. In this communication authentication sequence, as a communication mode between the portable wireless device and the information processing device, a search mode for searching for a portable wireless device for performing a predetermined authentication process, the searched portable wireless device and the information processing There is an authentication mode for canceling the function restriction of the information processing apparatus by performing a predetermined authentication process between the apparatuses.

  As a portable wireless device according to an embodiment of the present invention, for example, there is a wireless key having a wireless communication function.

[Positional relationship between portable wireless device and information processing device]
FIG. 8 is a diagram illustrating an example of a positional relationship between the portable wireless device and the information processing device according to the embodiment of this invention. In FIG. 8, when there is one information processing device 21 and a plurality of portable wireless devices 11 (11A, 11B,..., 11J), a predetermined authentication process is performed with any portable wireless device 11. Assumes that Further, FIG. 8 shows concentric ranges connecting the positions where the distance from the information processing device 21 is the same, and the use authority granting area and the existence confirmation area are respectively shown in order of increasing distance from the information processing device 21. It is an out-of-communication area.

  The use authority granting area determines a portable wireless device for performing a predetermined authentication process with the information processing device 21 among the portable wireless devices 11 located in the area, and determines the determined portable wireless device and information processing. This is an area in which a predetermined authentication process can be performed with the device 21 and the function restriction of the information processing device 21 can be removed. In FIG. 8, KEY11A and 11B which are examples of portable radio | wireless apparatuses are located in this area.

  The presence confirmation area can determine a portable wireless device for performing a predetermined authentication process with the information processing device 21 among the portable wireless devices 11 located in the area, but the actual predetermined authentication process can be determined. This is an area that cannot be performed and the function restriction of the information processing device 21 cannot be removed. In FIG. 8, KEY11C and 11D which are examples of portable radio | wireless apparatuses are located in this area.

  The out-of-communication area cannot determine a portable wireless device for performing a predetermined authentication process with the information processing device 21 among the portable wireless devices 11 located in the area. This is an area where processing cannot be performed and the function restriction of the information processing apparatus 21 cannot be removed. In FIG. 8, KEY11E, 11F, 11G, 11H, 11I, and 11J which are examples of portable radio | wireless apparatuses are located in this area.

  In addition, the use authority grant area and the existence confirmation area are collectively referred to as an authentication area.

  In addition, when a plurality of portable wireless devices 11 are located in the use right granting area, the portable wireless devices may be switched to perform a predetermined authentication process when a predetermined condition is satisfied. Such switching is performed by a communication authentication sequence described later.

  In the following description, when the mobile wireless device 11 is simply described, the mobile wireless devices 11A to 11J are described in common.

[Wireless authentication sequence between portable wireless device and information processing device]
Next, a description will be given of processing by the portable wireless device and information processing device that has not started wireless authentication, and a series of processing by the portable wireless device and information processing device that starts wireless authentication with the counterpart device and continues wireless authentication. To do. Here, it is assumed that a plurality of portable radio apparatuses 11A, 11B, and 11C are located around the information processing apparatus 21.

  FIG. 1 shows a sequence in the search mode by the portable radio apparatus and the information processing apparatus according to the embodiment of the present invention. In FIG. 1, an example in which the mobile wireless device 11A (KEY 11A in FIG. 1) satisfies a predetermined selection condition for being selected as a mobile wireless device that performs wireless authentication and succeeds in the search for the mobile wireless device 11A. Show.

Note that the portable wireless device that satisfies a predetermined selection condition is the following device.
Among the portable wireless devices / portable wireless devices that have a short distance to the information processing device 21 and the maximum reception level from the portable wireless device, the information processing device 21 has a priority. The best portable radio apparatus / information processing apparatus 21 transmits the search signal received first.

  The mobile radio apparatuses 11A, 11B (KEY11B in FIG. 1), 11C (KEY11C in FIG. 1) repeat the carrier sense of the search channel at a certain period T (the mobile radio apparatus 11A is at the time indicated by “◯” in FIG. 1). (The carrier sense of the search channel is also carried out. The portable wireless devices 11B and 11C are also not shown but are the same).

  On the other hand, the information processing device 21 transmits a search request signal for at least a period longer than the carrier sense period T of the portable radio apparatus 11 (a period in which the width of the thick arrow representing the search request signal in FIG. Corresponding). The information processing device 21 transmits the search request signal for a period equal to or longer than the carrier sense T of the portable wireless device 11 so that the portable wireless device 11 can receive the search request signal. If the information processing apparatus 21 transmits a search request signal a predetermined number of times without receiving a search signal from any portable radio apparatus 11, the information processing apparatus 21 stops transmitting the search request signal or Power saving of the information processing apparatus 21 may be achieved by increasing the transmission cycle.

  Here, when various signals such as a search signal are transmitted from a plurality of portable radio apparatuses 11, the following processing is performed in order to prevent the collision of signals due to the simultaneous transmission of these signals. I do.

  For example, the mobile wireless devices 11A to 11C that have received the search request signal each generate a random number and transmit the search signal at a timing according to the generated value. When the information processing apparatus 21 receives at least two search signals from the portable radio apparatuses 11A to 11C at the same time, the information processing apparatus 21 transmits a search signal retransmission request to the portable radio apparatus that has transmitted the search signal at the same time. Then, the mobile radio apparatus that has received the retransmission request generates a random number again, and retransmits the search signal at a timing according to the generated value. The above processing is repeated until the information processing device 21 receives a search signal retransmitted from the portable wireless device at a different timing. This process is an example of a process for preventing signal collision, and signal collision may be prevented by other methods.

  When the mobile wireless device 11 receives a search request signal from the information processing device 21 in the wireless communication area during carrier sense execution, the portable wireless device 11 determines the timing for transmitting the search signal by the method described above, for example, Send a search signal.

  Then, the information processing apparatus 21 receives the search signal, and when only one search signal is received, the information processing apparatus 21 transmits a search response to the mobile wireless device that is the transmission source of the search signal. On the other hand, when a plurality of search signals are received, the information processing device 21 transmits the search signals only to the mobile terminal device that satisfies a predetermined selection condition. The predetermined selection conditions (for example, conditions for signal reception level and priority) are as described above. In FIG. 1, the portable wireless device 11A satisfies a predetermined selection condition.

  11 A of portable radio | wireless apparatuses which received the search response transmit the key ID signal containing the identification code which identifies an own machine (mobile radio | wireless apparatus 11A) to the information processing apparatus 21. FIG. The information processing apparatus 21 that has received the key ID signal receives the identification code included in the key ID signal and the identification code stored in advance as data in the own apparatus (information processing apparatus 21). Is the identification code of the portable wireless device 11A that is paired with the information processing device 21), and if it matches, the own device (information processing device 21) is identified. The terminal ID signal including the identification code to be transmitted is transmitted to the portable radio apparatus 11A. Note that the portable wireless device 11 and the information processing device 21 perform pairing processing to exchange each other's identification code before starting wireless authentication, and pair the identification code of the own device with the identification code of the counterpart device. Registered as a thing.

  11 A of portable radio | wireless apparatuses which received the terminal ID signal perform transmission / reception of the signal using a challenge and response system between the information processing apparatuses 21 after that. That is, the mobile wireless device 11 </ b> A that has received the terminal ID signal transmits a challenge request signal to the information processing device 21. The information processing apparatus 21 that has received the challenge request signal transmits a challenge signal generated by generating a random number to the portable radio apparatus 11A, and encrypts the challenge signal by an encryption process common to the portable radio apparatus 11A. Store the digitized signal. 11 A of portable radio | wireless apparatuses which received the challenge signal transmit the response signal produced | generated by performing an encryption process common to the information processing apparatus 21 with respect to this challenge signal to the information processing apparatus 21. FIG. The information processing apparatus 21 that has received the response signal compares and compares the response signal with the encrypted signal stored when the challenge signal is transmitted to the portable radio apparatus 11A. If these signals match, the information processing device 21 determines that the authentication with the portable wireless device 11A is successful, and transmits an ACK signal notifying that the authentication is successful to the portable wireless device 11A. The portable wireless device 11A receives the ACK signal.

  Among the sequences described above, the period from when the information processing device 21 starts transmitting the search request signal to when the portable wireless device 11A receives the ACK signal is the first mode (between the information processing device 21 and the portable wireless device 11A). (Communication mode) is referred to as a period in which the search mode is set (note that the first mode searches for a period from when the information processing device 21 starts transmitting the search request signal until the portable wireless device 11A receives the terminal ID signal. The period in which the first mode is in the initial (pre) authentication mode after the portable wireless device 11A transmits the challenge request signal and the portable wireless device 11A receives the ACK signal. Sometimes). In addition, after transmitting or receiving the ACK signal, the information processing device 21 and the portable wireless device 11A transition from the first mode to an authentication mode described later.

  By the way, the information processing apparatus 21 transmits and receives various signals shown in the above-described sequence, and measures the reception intensity of some signals (or all signals) among the various signals received from the portable wireless device 11. Alternatively, the reception strength is notified from the portable wireless device 11 that measures the reception strength of the signal received from the information processing device 21.

  If the information processing apparatus 21 that has received the response signal determines that the authentication with the portable wireless apparatus 11 has succeeded, the received signal intensity measured or notified before receiving the response signal is less than a predetermined value. For example, although the ACK signal is transmitted to the portable wireless device 11 and the mode is changed to the authentication mode, the restriction on at least a part of the functions provided in the information processing device 21 is continued. On the other hand, if the received intensity of the signal measured or notified before receiving the response signal is equal to or greater than a predetermined value, the information processing device 21 transmits an ACK signal to the portable wireless device 11 and transitions to the authentication mode. The restriction on at least a part of the functions provided in the information processing apparatus 21 is released.

  The portable wireless device 11 may be set to the power saving mode when the portable wireless device is in the search mode (when the information processing device 21 is not selected as the portable wireless device for performing wireless authentication). it can. In this case, for example, the carrier sense interval of the portable wireless device is increased.

  Next, a sequence after the first mode becomes the authentication mode will be described. 2 and 3 show a sequence when the first mode is the authentication mode by the portable radio apparatus and the information processing apparatus according to the embodiment of the present invention.

  When the first mode is the authentication mode, basically, the second mode (the communication mode between the information processing device 21 and the portable wireless device 11B) and the third mode (the information processing device 21 and the portable wireless device). 11C) is a search mode.

  In order to synchronize with the counterpart device, the portable wireless device 11A and the information processing device 21 start timing from the time when the portable wireless device 11A transmits a response signal to the information processing device 21. Assume that the device 21 starts timing from the time when the response signal is received from the portable wireless device 11A. In addition, although it demonstrated that 11 A of portable radio | wireless apparatuses and the information processing apparatus 21 started time counting from the time of transmitting and receiving a response signal, you may use another signal for a synchronizing signal. In addition, the information processing device 21 corrects the timekeeping time in accordance with the frame synchronization of various signals received from the portable wireless device 11A.

  11 A of portable radio | wireless apparatuses repeat the carrier sense of an authentication channel and a search channel with a period of 2T, after starting time measurement, in order to receive the signal transmitted from the information processing apparatus 21. FIG. After that, the information processing apparatus 21 that has transitioned from the first mode to the authentication mode is set to an arbitrary point in time of 2T from the point of synchronization in order to match the timing at which the portable radio apparatus 11B senses the carrier of the authentication channel and the search channel. Then, the search request signal is transmitted to the portable radio apparatuses 11A to 11C. The operation of the wireless device 11 after receiving this search request signal will be described later. Note that this search request signal can be transmitted for a predetermined period to such an extent that the portable wireless device 11A can receive when the carrier sense interval is increased.

  In addition, the mobile wireless device 11A may perform carrier sense of the search channel at a period of T after starting the time measurement. The carrier sense of the search channel by the portable wireless device 11A is transmitted from an information processing device in which a plurality of information processing devices set in pairs with the portable wireless device 11A are registered in the portable wireless device 11A and wireless authentication is not performed. Implemented to receive incoming signals. In addition, in the portable radio apparatus 11A, the timing for performing the carrier sense for the authentication channel may overlap with the timing for performing the carrier sense for the search channel. In such a case, the carrier sense for the authentication channel is performed first. This corresponds to the processing of performing carrier sense of the search channel when radio waves from the information processing apparatus cannot be detected.

  In the information processing apparatus 21 and the portable radio apparatus 11A, the search channel carrier sense detects the search request signal and an ACK signal indicating a response to the search request signal, and the authentication channel carrier sense generates a challenge signal and a response signal. Detected.

  When the time 2T has elapsed after receiving the response signal immediately before the first mode transits to the authentication mode, the information processing apparatus 21 generates a challenge signal generated by generating a random number up to that time. While transmitting to the apparatus 11A, the challenge signal and the encrypted signal obtained by encrypting the challenge signal by the encryption process common to the portable radio apparatus 11A are stored. 11 A of portable radio | wireless apparatuses which received the challenge signal memorize | stored this challenge signal and the response signal produced | generated by performing an encryption process common to the information processing apparatus 21 with respect to this challenge signal, and the response signal is stored. It transmits to the information processing device 21. The information processing apparatus 21 that has received the response signal compares and compares the response signal with the encrypted signal stored when the challenge signal is transmitted to the portable radio apparatus 11A. If the signals match, the information processing device 21 determines that the authentication with the portable wireless device 11A has succeeded. Note that the information processing apparatus 11 transmits a challenge signal every time 16T elapses from transmission of the previous challenge signal to the portable wireless apparatus 11B (excluding retransmission described later) in order to periodically authenticate. .

  If the information processing device 21 determines that the authentication with the portable wireless device 11B has failed (not succeeded), when the time 2T elapses from the transmission of the challenge signal, the information processing device 21 sends the challenge signal to the portable wireless device. Retransmit to 11A. If the authentication fails even in the comparison and verification based on the response signal to the retransmitted challenge signal, the challenge signal is retransmitted to the portable radio apparatus 11A when the time 2T elapses from the transmission of the retransmitted challenge signal. If the authentication with the mobile wireless device 11A fails for a predetermined number of times or more, the information processing device 21 can transition the first mode from the authentication mode to the search mode.

  Here, although not illustrated, a specific sequence when the information processing apparatus 21 fails to authenticate with the portable wireless apparatus 11A (for example, when a response signal cannot be received) when the first mode is the authentication mode. ,explain. Here, the predetermined number of times is three.

  If the information processing device 21 transmits a challenge signal at a cycle of 16T but cannot receive a response signal from the portable wireless device 11A for the challenge signal, the same challenge signal is sent 2T after the challenge signal is transmitted. resend. If the information processing device 21 can receive a response signal from the portable wireless device 11 with respect to the challenge signal retransmission 1, the challenge information (excluding retransmission) is transmitted to the portable wireless device 11A when 16T elapses. The signal is transmitted to the portable wireless device 11A.

  On the other hand, if the information processing apparatus 21 cannot receive the response signal from the portable radio apparatus 11A for the challenge signal after transmitting the challenge signal retransmission 1, the information processing apparatus 21 receives the same challenge signal 2T after the time when the challenge signal retransmission 1 is transmitted. resend. If the information processing apparatus 21 can receive a response signal from the portable radio apparatus 11A for the challenge signal retransmission 2, when 16T has elapsed since the previous challenge signal (excluding retransmission) was transmitted to the portable radio apparatus 11A. Then, a challenge signal is transmitted to the portable radio apparatus 11A.

  Furthermore, after transmitting the challenge signal, transmitting the challenge signal retransmission 1, and transmitting the challenge signal retransmission 2, the information processing apparatus 21 responds to any challenge signal from the portable radio apparatus 11A. Can not be received, the first mode can transition to the search mode. Then, the information processing device 21 adds a restriction on at least a part of the functions provided in the information processing device 21, or continues the restriction if the restriction is already applied. On the other hand, 11 A of portable radio | wireless apparatuses will pass the time which it takes for the information processing apparatus 21 to transmit a series of three challenge signals, if 4T passes from the time of receiving the challenge signal (except retransmission) from the information processing apparatus 21 Then, the carrier sense of the authentication channel for the information processing apparatus 21 at 2T intervals is stopped, and only the carrier sense of the search channel is performed at the same time. Here, the sequence in which the information processing apparatus 21 transmits the retransmission of the challenge signal twice at maximum has been described, but the number of retransmissions may be any number (no retransmission may be performed).

  Note that although the portable wireless device 11A can receive the challenge signal from the information processing device 21, the information processing device 21 may not be able to receive the response signal transmitted from the portable wireless device 11A. If the portable radio apparatus 11A receives the challenge signal retransmission 1 and the retransmission 2 from the information processing apparatus 21 after transmitting the response signal, the portable radio apparatus 11A retransmits the response signal.

  Here, in FIG. 2, in the authentication mode, when the portable wireless device 11 cannot receive the challenge signal from the portable wireless device 11 including retransmission, for example, the portable wireless device 11 has moved from the authentication area to the out-of-communication area. Conceivable.

  The information processing apparatus 21 that has transmitted the challenge signal (including retransmission) then measures the reception strength of the response signal received from the portable radio apparatus 11A, or measures the reception intensity of the signal received from the information processing apparatus 21. The reception intensity is notified from the apparatus 11A using a response signal. If the information processing apparatus 21 that has received the response signal determines that the authentication with the portable radio apparatus 11A has been successful, and if the received intensity of the signal measured or notified from the response signal is less than a predetermined value, the authentication mode However, the restriction on at least a part of the functions provided in the information processing apparatus 21 is continued. On the other hand, if the received intensity of the signal measured or notified from the response signal is equal to or higher than a predetermined value, the information processing apparatus 21 maintains the authentication mode and restricts at least a part of the functions provided in the information processing apparatus 21. To release.

  Here, in FIG. 2, when the reception strength of the signal is equal to or higher than a predetermined value in the authentication mode, it usually means that the mobile wireless device 11 is located in the use authority grant area. In the authentication mode, when the signal reception intensity is less than a predetermined value, it usually means that the portable wireless device 11 is located in the presence confirmation area. However, there may be exceptions depending on the communication status.

  For example, when the challenge signal and the response signal are 8-byte signals, the challenge signal may be divided into eight 1-byte units, and 1-byte challenge signal and response signal may be transmitted / received in sequence every time 16T.

  Further, the information processing apparatus 21 may comprehensively determine whether the reception intensity is greater than or less than a predetermined value based on the reception intensity of a plurality of signals measured or notified at each time 16T. In addition, when the information processing apparatus 21 has a function of measuring the reception intensity of the response signal and a function of acquiring the reception intensity using the response signal from the portable wireless apparatus 11, You may make it determine whether the large (or small) received intensity obtained from the function is more than or less than a predetermined value.

  By the way, when the mobile radio apparatus 11A receives the search request signal when the first mode is the authentication mode, the mobile radio apparatus 11A transmits an ACK signal indicating a response to the search request signal to the information processing apparatus 21. Further, when the mobile wireless devices 11B and 11C receive the search request signal when the first mode is the authentication mode, the mobile wireless devices 11B and 11C transmit the search signal to the information processing device 21. These search signals and ACK signals include information indicating the transmission source and the transmission destination. When the mobile radio apparatus 11 transmits a search request signal or an ACK signal, the information processing apparatus 21 receives each signal at different timings by using, for example, the method for preventing signal collision described above. It is possible. When the information processing apparatus 21 receives the search signal from the portable radio apparatuses 11B and 11C and the ACK signal from the portable radio apparatus 11A, the information processing apparatus 21 determines the reception level for each signal. This ACK signal is an example of a search signal.

  On the other hand, as described above, when the information processing device 21 that has received the response signal determines that the authentication with the portable wireless device 11A has succeeded, the received intensity of the signal measured or notified from the response signal is If it is less than the predetermined value, the authentication mode is maintained, but at least a part of the functions provided in the information processing apparatus 21 is restricted. When the first mode is the authentication mode, the information processing apparatus 21 starts measuring time from the time when the function restriction is started. Then, the information processing device 21 monitors whether the reception level of the signal received by the information processing device 21 from the start of timing to the reception of the ACK signal or the search signal from the portable wireless device 11 is less than a predetermined level. To do.

  The information processing device 21 has received signal levels from the start of timing until the reception of the ACK signal or the search signal from the portable wireless device 11 after a predetermined period (period TX in FIG. 2) has elapsed. Is continuously below the predetermined level, the wireless authentication target device is switched to another information processing device that satisfies the predetermined switching condition. Note that the period TX corresponds to use time information T1, T2,..., TN determined for each portable radio apparatus 11 shown in FIG. In FIG. 2, the period TX is T1.

  In FIG. 2, the determination of the reception level of the search signal and the ACK signal is performed within the predetermined period TX, so that switching from the portable wireless device 11A to another portable wireless device is not performed at this time. . Further, when the function restriction of the information processing device 21 is being released (when the portable wireless device 11 is located in the use right granting area in FIG. 2), whether or not the other portable wireless device satisfies a predetermined switching condition. No switching is performed.

Note that there are the following devices as portable wireless devices that satisfy a predetermined switching condition.
Among portable wireless devices other than the portable wireless device to which the right to use has been given until immediately before, the portable wireless device having a short distance from the information processing device 21 and the maximum reception level from the portable wireless device. Among the portable wireless devices other than the portable wireless device to which the use authority is given, the information processing apparatus 21 has the highest priority for the portable wireless device. Among the wireless devices, the portable wireless device that has transmitted the search signal first received by the information processing device 21

  In FIG. 3, first, each of the mobile wireless devices 11 </ b> A to 11 </ b> C receives a search request signal from the information processing device 21 and transmits an ACK signal or a search signal to the information processing device 21. When the information processing device 21 receives an ACK signal or a search signal, the information processing device 21 determines the reception level of those signals. In FIG. 3, the reception level of the search signal and the ACK signal is determined after the predetermined period TX has elapsed, and the reception level of the reception signal continues from the start of timing of the predetermined period (TX). In this case, it is assumed that the information processing device 21 wirelessly transmits the portable wireless device 11A from the portable wireless device 11A to the portable wireless device 11B on the assumption that the portable wireless device 11A satisfies the predetermined switching condition. Switch the portable wireless device for authentication.

  The information processing device 21 transmits a search response to the search signal to the portable wireless device 11B that satisfies a predetermined switching condition. When receiving the search response, the portable wireless device 11B cancels the power saving state if it is in the power saving state. In this case, for example, the carrier sense interval is returned to the normal state. After the search response is received by the portable wireless device 11B, the key ID signal, the terminal ID signal, the challenge request signal, the challenge signal, the response signal, and the ACK signal are transmitted and received between the information processing device 21 and the portable wireless device 11B. Is done. The method for transmitting / receiving these signals is the same as the method described for transmitting / receiving the ACK signal from the key ID transmission performed between the information processing device 21 and the portable wireless device 11A described in FIG. Then, after transmitting or receiving the ACK signal, the information processing device 21 and the portable wireless device 11B transition from the second mode to the authentication mode.

  When the second mode transitions to the authentication mode by transmitting an ACK signal, the information processing device 21 transmits a switching signal for switching the first mode from the authentication mode to the search mode to the portable wireless device 11A. The mobile wireless device 11A receives the switching signal and switches the first mode to the search mode.

  In addition, when the time 2T has elapsed since the information processing device 21 received the response signal immediately before the first mode transits to the authentication mode, the challenge signal generated by generating a random number up to that point is generated. As described above, the transmission to the portable wireless device 11A has been described earlier. Similarly, when the time 2T has elapsed since the reception of the response signal immediately before the second mode transits to the authentication mode, a random number is reached by that time. Is transmitted to the portable radio apparatus 11B.

  Regarding the transmission / reception processing (including retransmission) of the challenge signal and the request signal of the information processing device 21 and the portable wireless device 11B when the second mode is the authentication mode, the information processing device when the first mode is the authentication mode 21 and the transmission / reception processing (including retransmission) of the challenge signal and request signal of the portable wireless device 11A.

[Configuration of portable radio apparatus and information processing apparatus according to embodiments of the present invention]
Next, configurations of the portable wireless device and the information processing device according to the embodiment of the present invention will be described. FIG. 4 shows a functional block diagram of the portable radio apparatus and the information processing apparatus according to the embodiment of the present invention. The portable wireless device 11 according to the embodiment of the present invention includes a wireless authentication unit 10 and various interfaces 104. In addition, the information processing apparatus 21 according to the embodiment of the present invention includes a wireless authentication unit 20, a drive unit 30, a drive control unit 40, a display 50, an operation unit 60, a notification unit 70, and a storage unit 80. The wireless authentication unit 10 includes a wireless unit 101, a timer 102, and a wireless control unit 103. The wireless authentication unit 20 includes a wireless unit 201, a timer 202, and a wireless control unit 203.

  In the wireless authentication unit 10 of the portable wireless device 11, the wireless unit 101 transmits a radio wave for short-range communication or UWB used in 400 MHz band specific low power radio, RFID (Radio Frequency Identification) via an antenna. (Ultra Wide Band) is used to transmit and receive radio waves including the identification code of the information processing device 21 set as a pair with the portable wireless device 11 by pairing processing.

  The wireless control unit 103 controls a signal to be transmitted / received to / from the wireless unit 101 based on a predetermined communication protocol (that is, the communication protocol described in [Wireless authentication sequence between portable wireless device and information processing device]). . The wireless control unit 103 includes circuits such as an amplifier circuit, a modulation circuit, a demodulation circuit, an encoding circuit, and a decoding circuit. Further, the radio control unit 103 is based on the reception intensity of radio waves used in radio communication (for example, the voltage level and S / N ratio of radio waves input to the demodulation circuit, the error rate of data decoded by the decode circuit, etc.). And the received intensity is determined to be greater than or less than a preset threshold.

  The timer 102 starts timing from the time when the wireless unit 101 transmits a response signal to the information processing apparatus 21.

  The interface 104 is, for example, an operation button, and is configured by a device that appropriately outputs a signal input from the outside of the portable wireless device 11 to the wireless control unit 103.

  In the wireless authentication unit 20 of the information processing apparatus 21, the wireless unit 201 transmits a radio wave for short-range communication or UWB used for 400 MHz band specific low power radio, RFID (Radio Frequency Identification) via an antenna. (Ultra Wide Band) or the like is used to transmit and receive radio waves including the identification code signal of the portable wireless device 11 set as a pair with the information processing device 21 by pairing processing. The wireless unit 201 has a function as a receiving unit.

  The wireless control unit 203 controls a signal to be transmitted / received to / from the wireless unit 201 based on a predetermined communication protocol (that is, the communication protocol described in [Wireless authentication sequence between portable wireless device and information processing device]). . The wireless control unit 203 includes circuits such as an amplifier circuit, a modulation circuit, a demodulation circuit, an encoding circuit, and a decoding circuit. Further, the radio control unit 203 is based on the reception intensity of radio waves used in radio communication (for example, the voltage of the radio wave level input to the demodulation circuit, the S / N ratio, the error rate of the data decoded by the decode circuit, etc.). And the received intensity is determined to be greater than or less than a preset threshold. The wireless control unit 203 outputs a use restriction request signal to the drive control unit 40 when authentication with the portable wireless device 11 fails or when the reception intensity of the radio wave received from the portable wireless device 11 is less than a predetermined value. Thus, at least a part of the functions provided in the information processing apparatus 21 is restricted. On the other hand, when the wireless control unit 203 succeeds in authentication with the portable wireless device 11 and the reception intensity of the radio wave received from the portable wireless device 11 is equal to or higher than a predetermined value, the wireless control unit 203 sends a use restriction release signal to the drive control unit 40. The restriction on the function provided to the information processing apparatus 21 is released. Note that the wireless control unit 203 has a function as a reception level measurement unit.

  The timer 202 starts measuring time when the wireless unit 201 receives a response signal from the portable wireless device 11. In addition, the timer 202 corrects the time measured according to the time of the portable wireless device 11 in accordance with the frame synchronization of various signals received from the portable wireless device 11. The timer 102 measures the predetermined period TX. In addition, other necessary timekeeping is performed.

  The wireless authentication unit 20 is a device designating unit that designates a portable wireless device that performs predetermined wireless authentication (authentication processing) from a plurality of portable wireless devices, an authentication processing unit that performs predetermined authentication processing, and settings of the information processing device 21. A setting change unit for changing the processing information, and a processing information recording unit for recording processing information processed by the information processing device 21 in the storage unit 80 when a portable wireless device for performing a predetermined authentication process is specified (including switching) It has the function of.

  The drive control unit 40 limits the execution of the functions of the various drive units 30 that can be executed by the information processing apparatus 21 during a period when the use restriction request signal is notified from the wireless control unit 203. Further, the drive control unit 40 controls the notification output by the notification unit 70. Further, the drive control unit 40 changes various settings in the information processing apparatus 21. Further, the drive control unit 40 restores the original processing state based on the state / result from the wireless authentication unit 20. The drive control unit 40 has a function as a state restoration unit that restores the state of the information processing apparatus 21 using the processing information as resume information.

  The storage unit 80 stores various data and programs. In addition, the storage unit 80 includes a KEY management information table 80a that stores information related to the portable wireless device 11 for each portable wireless device. This KEY management information table 80a includes a KEY name indicating the name of the portable wireless device 11, a KEY ID indicating identification information of the portable wireless device 11, reception level information indicating the reception level of a signal from the portable wireless device 11, and portable wireless. Location information indicating the area where the device 11 is located, security information indicating user ID information and password information held by the mobile wireless device 11, and use authority granting indicating whether or not the mobile wireless device 11 is authorized to use Status information, usage time information indicating information that can be used in a state where the right to use the portable wireless device 11 is given, individual setting information indicating individual setting information for each portable wireless device 11, and the state at the time of the previous activation stop The resume information to be shown is stored. An example of the KEY management information table 80a is shown in FIG. Note that the items included in the KEY management information table 80a illustrated in FIG. 5 are merely examples, and may include other items.

  Note that a wireless key is conceivable as an embodiment of the portable wireless device of the present invention. However, the wireless key is not limited to the wireless key, and an electronic device such as a cellular phone, a PDA, or a wireless card functions as one function. It may be in a form including

  In addition, as an embodiment of the information processing apparatus of the present invention, a PC, a mobile phone, a PDA, and other electronic devices can be considered.

[Example of operation of information processing apparatus]
Next, an example of an operation from when the information processing apparatus 21 receives a search signal or an ACK signal until it transmits a search response when any of the portable wireless apparatuses is in the authentication mode will be described. FIG. 6 is a flowchart illustrating an example of an operation from when the information processing apparatus 21 receives a search signal or an ACK signal until it transmits a search response when any one of the portable wireless apparatuses is in the authentication mode. Note that the process of FIG. 6 includes a determination as to whether or not the predetermined switching condition is satisfied.

  First, the wireless authentication unit 20 receives at least one of a search signal and an ACK signal from the portable wireless device 11 (step S101).

  Subsequently, the wireless authentication unit 20 determines whether or not the reception level of the ACK signal from the portable wireless device which is the authentication mode received in step S101 is equal to or higher than a predetermined threshold (step S102).

  When it is determined that the reception level of the ACK signal is equal to or higher than a predetermined threshold, the wireless authentication unit 20 stores information on the reception level (the reception level of the ACK signal from the portable wireless device in the authentication mode). The data is stored in the unit 80 (step S104), and the process of FIG.

  On the other hand, if it is determined that the reception level of this ACK signal is less than the predetermined threshold, the wireless authentication unit 20 stores information on the reception level of the search signal from the portable wireless device that is not in the authentication mode in the storage unit 80. (Step S103). It is assumed that the search signal is greater than or equal to a predetermined threshold value. If the search signal is less than the predetermined threshold value, the process is terminated without returning a search response (not shown in FIG. 6).

  Subsequently, the wireless authentication unit 20 uses the timer 202 to determine whether or not a predetermined period TX of the portable wireless device that is in the authentication mode has passed (step S105). The predetermined period TX can be different for each portable wireless device, and corresponds to the usage time information T1, T2,..., TN stored in the KEY management information table 80a.

  When it is determined that the predetermined period TX has elapsed, the wireless authentication unit 20 performs key management in the storage unit 80 for the portable wireless device that is not in the authentication mode and has received the search signal by the information processing device 21 in step S101. The priority is compared with reference to the information table 80a, and it is determined whether there are a plurality of highest priorities (step S106).

  If there is only one highest priority, the wireless authentication unit 20 determines the portable wireless device with the highest priority as the portable wireless device that performs wireless authentication with the information processing device 21 (step S107). .

  When the highest priority is plural, the wireless authentication device 20 is not in the authentication mode, and the KEY management information table in the storage unit 80 for the portable wireless device that has received the search signal by the information processing device 21 in step S101. The reception level of the search signal is compared with reference to 80a, and it is determined whether or not there are a plurality of maximum reception levels (step S108).

  If there is only one highest reception level, the wireless authentication unit 20 determines the portable wireless device with the highest reception level as the portable wireless device that performs wireless authentication with the information processing device 21 (step S109). .

  When there are a plurality of highest reception levels, the wireless authentication unit 20 makes a response between the information processing device 21 and the portable wireless device that transmitted the search signal first received by the information processing device 21. It determines as a portable radio | wireless apparatus which performs radio | wireless authentication (step S110).

  Then, the wireless authentication unit 20 transmits a search response to the portable wireless device determined in any of steps S107, S109, and S110 (step S111).

  Next, an example of the operation from when the information processing apparatus 21 receives a search signal until it transmits a search response when all the portable radio apparatuses are in the search mode will be described. FIG. 7 is a flowchart showing an example of the operation from when the information processing apparatus 21 receives a search signal until it transmits a search response when any of the portable radio apparatuses is in the search mode. Note that the processing in FIG. 7 includes determination as to whether or not the predetermined switching condition is satisfied.

  First, the wireless authentication unit 20 receives a search signal from the portable wireless device 11 (step S201).

  Subsequently, the wireless authentication unit 20 stores information on the reception level of the search signal received in step S201 in the storage unit 80 (step S202). Here, similarly to S103, it is assumed that the received level of the received search signal is equal to or higher than a predetermined threshold. If the reception level is less than the predetermined threshold, the search is terminated without transmitting a search response (not shown).

  Subsequently, the wireless authentication unit 20 refers to the KEY management information table 80a in the storage unit 80, compares priorities, and determines whether there are a plurality of highest priorities (step S203).

  If there is only one highest priority, the wireless authentication unit 20 determines the portable wireless device with the highest priority as the portable wireless device that performs wireless authentication with the information processing device 21 (step S204). .

  When there are a plurality of highest priorities, the wireless authentication device 20 refers to the KEY management information table 80a in the storage unit 80, compares the reception levels of search signals, and determines whether there are a plurality of highest reception levels. Determination is made (step S205).

  If there is only one highest reception level, the wireless authentication unit 20 determines the portable wireless device with the highest reception level as the portable wireless device that performs wireless authentication with the information processing device 21 (step S206). .

  When there are a plurality of highest reception levels, the wireless authentication unit 20 makes a response between the information processing device 21 and the portable wireless device that transmitted the search signal first received by the information processing device 21. It determines as a portable radio | wireless apparatus which performs radio | wireless authentication (step S207).

  Then, the wireless authentication unit 20 transmits a search response to the portable wireless device determined in any of steps S204, S206, and S207 (step S208).

  7 and 8 show that the priority of the portable wireless device, the reception level of the signal, and the reception time of the signal are sequentially determined. However, the portable wireless device is selected in the other order. May be.

  Furthermore, the information processing apparatus 21 can perform various processes in addition to the processes in FIGS. 7 and 8. For example, when the portable wireless device 11 that performs wireless authentication is switched, the information processing device 21 refers to individual setting information that is an example of setting information, and the information processing device before and after switching according to the portable wireless device that performs wireless authentication. 21 setting information can be changed. Further, when the portable wireless device 11 that performs wireless authentication is switched from, for example, the first portable wireless device to the second portable wireless device, the information processing device 21 uses the processing information of the information processing device 21 at the time of switching as resume information. It is possible to record in the storage unit 80 for each portable wireless device. The information processing device 21 refers to the resume information of the first portable wireless device when switching to the first portable wireless device again after switching to the second portable wireless device, for example. It is possible to restore 21 states.

  As described above, according to the portable wireless device and the information processing device of the embodiment of the present invention, it is possible to permit wireless authentication only between a specific portable wireless device and the information processing device. For example, the portable wireless device having the highest priority stored in the storage unit 80, the portable wireless device having the highest reception level such as the search signal, and the portable device that has transmitted the search signal for the search request signal received first by the information processing device 21. A wireless device or the like can be selected as a device that performs wireless authentication with the information processing device 21.

  In addition, when a portable wireless device performing wireless authentication moves from the authentication area to an outside communication area outside the authentication area, it is possible to switch the portable wireless device that performs predetermined authentication processing to another portable wireless device. . For example, among other portable wireless devices, the portable wireless device with the highest priority stored in the storage unit 80, the portable wireless device with the highest reception level such as a search signal, and the search request received first by the information processing device 21 A portable wireless device or the like that has transmitted a search signal for the signal can be selected as a device that performs wireless authentication with the information processing device 21.

  Further, by prohibiting switching to another portable wireless device within a predetermined period after the usage right granting period, for example, among the plurality of wireless keys (an example of the portable wireless device), the information processing device 21 When performing wireless authentication with a wireless key having the highest reception level of communication performed between the two, for example, when the information processing device 21 is operated by a plurality of people, frequent switching of the wireless key to be authenticated is prevented. It is possible to improve user convenience. Also, if a mobile wireless device that performs wireless authentication moves from the authentication area to the communication area without entering the usage right granting area, the mobile wireless device switches to another mobile wireless device after a predetermined period of time after entering the authentication area. It is also possible.

  Further, according to the mobile wireless device that performs wireless authentication, it is possible to perform setting change of the information processing device 21, recording of processing information, restoration based on processing information as resume information, and the like, improving user convenience , Improve safety and protect privacy.

  According to the information processing device, portable wireless device, authentication method, and program of the present invention, there is an effect that wireless authentication can be permitted only between a specific portable wireless device and the information processing device. This is useful in the field of portable wireless devices and information processing devices that perform authentication using communication.

Sequence when first mode is search mode by portable radio apparatus and information processing apparatus of embodiment of present invention Sequence when master mode is authentication mode by portable radio apparatus and information processing apparatus of embodiment of present invention Other examples of sequence when master mode is authentication mode by portable radio apparatus and information processing apparatus of embodiment of present invention Functional block diagram of portable radio apparatus and information processing apparatus according to an embodiment of the present invention The figure which shows an example of the KEY management information table of embodiment of this invention. In the embodiment of the present invention, when any portable wireless device is in the authentication mode, a flowchart illustrating an example of an operation from when the information processing device receives a search signal or an ACK signal until it transmits a search response. In the embodiment of the present invention, when any portable radio apparatus is in the search mode, a flowchart illustrating an example of an operation from when the information processing apparatus receives a search signal until it transmits a search response. The figure which shows the positional relationship of the portable radio | wireless apparatus and information processing apparatus of embodiment of this invention

Explanation of symbols

11, 11A-11J Portable wireless device (KEY)
10 wireless authentication unit 101 wireless unit 102 timer 103 wireless control unit 104 interface 21 information processing device 20 wireless authentication unit 201 wireless unit 202 timer 203 wireless control unit 30 drive unit 40 drive control unit 50 display 60 operation unit 70 notification unit 80 storage unit

Claims (7)

An information processing apparatus capable of communicating with a plurality of portable wireless devices capable of performing a predetermined authentication process,
A storage unit that associates and stores identification information of the portable wireless device and priority information for performing the predetermined authentication process between the portable wireless device and the information processing device of the identification information;
A device designating unit for designating a portable wireless device that performs the predetermined authentication process from the plurality of portable wireless devices based on the priority information;
An authentication processing unit that performs the predetermined authentication process with the portable wireless device specified by the device specifying unit;
A receiving unit that receives a search signal indicating a response from the portable wireless device to a search request signal for searching the portable wireless device;
A reception level measurement unit for measuring the reception level of the search signal received by the reception unit;
Have
The storage unit stores the identification information of the portable wireless device and the reception level of the search signal from the portable wireless device of the identification information in association with each other,
The information processing apparatus, wherein the device designating unit designates a portable wireless device that performs the predetermined authentication process from the plurality of portable wireless devices based on the reception level and the reception time of the search signal . The information processing apparatus according to claim 1 ,
A timer that starts timing when a use right granting period indicating a period for releasing at least a part of the function restriction of the information processing apparatus by the portable wireless device designated by the device designating unit is completed;
The device designating unit continues the predetermined time after the start of the timekeeping when a predetermined period has elapsed from the start of the timekeeping and the reception level of the signal from the portable wireless device designated by the device designating unit If the level is less than the level, based on the priority information, the predetermined authentication process is performed from a switching target device indicating a portable wireless device other than the portable wireless device specified by the device specifying unit among the plurality of portable wireless devices. An information processing device that newly designates a portable wireless device that performs the operation. An information processing apparatus according to claim 2 ,
The device designating unit continuously receives a signal reception level from the portable wireless device designated by the device designating unit when a predetermined period has elapsed since the time measurement was started and after the time measurement was started. An information processing device that newly designates a portable wireless device that performs the predetermined authentication process from the switching target device based on the reception level when the level is less than the level. The information processing apparatus according to claim 3 ,
The device designating unit continuously receives a signal reception level from the portable wireless device designated by the device designating unit when a predetermined period has elapsed since the time measurement was started and after the time measurement was started. If the level is less than the level, a portable radio apparatus that performs the predetermined authentication process is newly specified from the switching target apparatus based on a reception time of a search signal received by the receiving unit after the predetermined period has elapsed. apparatus. The information processing apparatus according to any one of claims 2 to 4 , further comprising:
A setting change unit for changing the setting of the information processing apparatus;
The storage unit further corresponds to identification information of the portable wireless device and setting information of the information processing device when the predetermined authentication process is performed between the portable wireless device of the identification information and the information processing device. Remember,
When the device specifying unit newly designates a portable wireless device that performs the predetermined authentication process, the setting changing unit is configured to perform the information based on the setting information corresponding to the newly designated portable wireless device. An information processing device that changes the setting of a processing device. The information processing apparatus according to any one of claims 2 to 4 , further comprising:
When a second portable wireless device is newly designated instead of the first portable wireless device as the portable wireless device that performs the predetermined authentication process by the device designation unit, the identification information of the first portable wireless device and the new An information processing apparatus having a processing information recording unit that associates the processing information processed by the information processing apparatus with each other and stores the information in the storage unit. The information processing apparatus according to claim 6 , further comprising:
When the first portable wireless device is newly designated after the second portable wireless device is newly designated by the device designation unit, based on the processing information corresponding to the second portable wireless device An information processing apparatus having a state restoration unit that restores the state of the information processing apparatus.

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