Information processing system, information processing apparatus, and non-transitory computer readable medium

An information processing system comprising:

• a plurality of information processing apparatuses;
• and
• a management apparatus,
• a first information processing apparatus of the plurality of information processing apparatuses including
• a memory that stores therein, in association with each storage location in which information is stored, authentication information to be used when storing processed information in a storage location, and
• a first notifying unit that notifies, when authentication information associated with a storage location is updated, the management apparatus of the storage location associated with the updated authentication information,
• the management apparatus including
• a recording unit that records apparatus identifying information for identifying each of the plurality of information processing apparatuses, information concerning a storage location in which information processed by each of the plurality of information processing apparatuses is stored, and a public key of each of the plurality of information processing apparatuses such that the apparatus identifying information, the information concerning a storage location, and the public key are associated with one another,
• an extracting unit that extracts apparatus identifying information and a public key associated with the apparatus identifying information which are recorded by the recording unit in association with information concerning the storage location supplied from the first notifying unit, and
• a first apparatus information notifying unit that notifies the first information processing apparatus of the apparatus identifying information and the public key extracted by the extracting unit in response to the information concerning the storage location received from the first notifying unit,
• the first information processing apparatus further including
• a second notifying unit that notifies, upon receiving the apparatus identifying information and the public key from the first apparatus information notifying unit, an information processing apparatus identified by the apparatus identifying information received from the first apparatus information notifying unit of the storage location associated with the updated authentication information and the updated authentication information, and
• a third notifying unit that notifies, if the second notifying unit has failed to supply the storage location associated with the updated authentication information and the updated authentication information, the management apparatus of apparatus identifying information concerning a second information processing apparatus of the plurality of information processing apparatuses to which the second notifying unit has failed to supply the storage location associated with the updated authentication information and the updated authentication information and that also notifies the management apparatus of the updated authentication information encrypted with the public key of the second information processing apparatus,
• the management apparatus further including
• a second apparatus information notifying unit that notifies, upon receiving communication from the second information processing apparatus, the second information processing apparatus of the storage location associated with the updated authentication information and the encrypted updated authentication information,
• the second information processing apparatus including
• a second memory that stores therein, in association with each storage location in which information is stored, authentication information to be used when storing processed information in a storage location, and
• an updating unit that decrypts, upon receiving information concerning the storage location and the encrypted updated authentication information from the second apparatus information notifying unit, the encrypted updated authentication information and updates authentication information associated with the storage location stored in the second memory to the decrypted updated authentication information.

An information processing system comprising:

• a plurality of information processing apparatuses;
• and
• a management apparatus,
• a first information processing apparatus of the plurality of information processing apparatuses including
• a memory that stores therein, in association with each storage location in which information is stored, authentication information to be used when storing processed information in a storage location, and
• a first notifying unit that notifies, when authentication information associated with a storage location is updated, the management apparatus of the storage location associated with the updated authentication information,
• the management apparatus including
• a recording unit that records apparatus identifying information for identifying each of the plurality of information processing apparatuses, information concerning a storage location in which information processed by each of the plurality of information processing apparatuses is stored, a public key of each of the plurality of information processing apparatuses, and a communication due time at which each of the plurality of information processing apparatuses will communicate with the management apparatus such that the apparatus identifying information, the information concerning a storage location, the public key, and the communication due time are associated with one another,
• an extracting unit that extracts apparatus identifying information and a communication due time corresponding to the apparatus identifying information which are recorded by the recording unit in association with information concerning the storage location supplied from the first notifying unit, and
• a first apparatus information notifying unit that notifies the first information processing apparatus of the apparatus identifying information extracted by the extracting unit and a public key of an information processing apparatus identified by the apparatus identifying information in response to the information concerning the storage location received from the first notifying unit, wherein, if the communication due time extracted by the extracting unit is within a predetermined time and if the information processing apparatus identified by the apparatus identifying information possesses the public key, the first apparatus information notifying unit adds notification excluding information to the apparatus identifying information, the notification excluding information indicating that the first information processing apparatus does not have to notify the information processing apparatus identified by the apparatus identifying information of the updated authentication information, and the first apparatus information notifying unit notifies the first information processing apparatus of the apparatus identifying information and the public key in response to information concerning the storage location received from the first notifying unit,
• the first information processing apparatus further including
• a second notifying unit that notifies, if apparatus identifying information and a public key are received from the first apparatus information notifying unit and if the information processing apparatus identified by the apparatus identifying information is a second information processing apparatus of the plurality of information processing apparatuses to which the notification excluding information is not added, the second information processing apparatus of the storage location associated with the updated authentication information and the updated authentication information, and
• a third notifying unit that notifies, if apparatus identifying information and a public key are received from the first apparatus information notifying unit and if the information processing apparatus identified by the apparatus identifying information is a third information processing apparatus of the plurality of information processing apparatuses to which the notification excluding information is added, the management apparatus of the updated authentication information encrypted with the public key of the third information processing apparatus,
• the management apparatus further including
• a second apparatus information notifying unit that notifies, upon receiving communication from the third information processing apparatus, the third information processing apparatus of the storage location associated with the updated authentication information and the encrypted updated authentication information,
• the third information processing apparatus including
• a second memory that stores therein, in association with each storage location in which information is stored, authentication information to be used when storing processed information in a storage location, and
• an updating unit that decrypts, upon receiving information concerning the storage location and the encrypted updated authentication information from the second apparatus information notifying unit, the encrypted updated authentication information and updates authentication information associated with the storage location stored in the second memory to the decrypted updated authentication information.

An information processing apparatus comprising:

• a memory that stores therein, in association with each storage location in which information is stored, authentication information to be used when storing processed information in a storage location;
• and
• a first notifying unit that notifies, when authentication information associated with a storage location is updated, a management apparatus of the storage location associated with the updated authentication information, wherein
• a recording unit of the management apparatus records apparatus identifying information for identifying each of information processing apparatuses, information concerning a storage location in which information processed by each of the plurality of information processing apparatuses is stored, a public key of each of the plurality of information processing apparatuses, and a communication due time at which each of the plurality of information processing apparatuses will communicate with the management apparatus such that the apparatus identifying information, the information concerning a storage location, the public key, and the communication due time are associated with one another,
• an extracting unit of the management apparatus extracts apparatus identifying information and a communication due time corresponding to the apparatus identifying information which are recorded by the recording unit in association with information concerning the storage location supplied from the first notifying unit,
• a first apparatus information notifying unit of the management apparatus notifies the information processing apparatus of the apparatus identifying information extracted by the extracting unit and a public key of an information processing apparatus identified by the apparatus identifying information in response to the information concerning the storage location received from the first notifying unit, and
• if the communication due time extracted by the extracting unit is within a predetermined time and if the information processing apparatus identified by the apparatus identifying information possesses the public key, the first apparatus information notifying unit adds notification excluding information to the apparatus identifying information, the notification excluding information indicating that the information processing apparatus which has sent the information concerning the storage location associated with the updated authentication information does not have to notify the information processing apparatus identified by the apparatus identifying information of the updated authentication information, and the first apparatus information notifying unit notifies the information processing apparatus which has sent the information concerning the storage location associated with the updated authentication information of the apparatus identifying information and the public key in response to information concerning the storage location received from the first notifying unit,
• the information processing apparatus further comprising:
• a second notifying unit that notifies, if the apparatus identifying information and the public key are received from the first apparatus information notifying unit and if the information processing apparatus identified by the apparatus identifying information is a second information processing apparatus to which the notification excluding information is not added, the second information processing apparatus of the storage location associated with the updated authentication information and the updated authentication information;
• and
• a third notifying unit that notifies, if the apparatus identifying information and the public key are received from the first apparatus information notifying unit and if the information processing apparatus identified by the apparatus identifying information is a third information processing apparatus to which the notification excluding information is added, the management apparatus of the updated authentication information encrypted with the public key of the third information processing apparatus,
• wherein a second apparatus information notifying unit of the management apparatus notifies, upon receiving communication from the third information processing apparatus, the third information processing apparatus of the storage location associated with the updated authentication information and the encrypted updated authentication information.

A non-transitory computer readable medium storing a program causing a computer to execute a process, the process comprising:

• notifying, by an information processing apparatus, when authentication information associated with a storage location is updated, a management apparatus of the storage location associated with the updated authentication information;
• extracting, by the management apparatus, from among items of apparatus identifying information recorded in association with storage locations, apparatus identifying information and a communication due time corresponding to the apparatus identifying information which are recorded in association with information concerning the storage location received from the information processing apparatus;
• notifying, by the management apparatus, in response to the information concerning the storage location received from the information processing apparatus, the information processing apparatus of the apparatus identifying information extracted by the extracting unit and a public key of an information processing apparatus identified by the apparatus identifying information;
• adding, by the management apparatus, if the communication due time extracted by the extracting unit is within a predetermined time and if the information processing apparatus identified by the apparatus identifying information possesses the public key, notification excluding information to the apparatus identifying information, the notification excluding information indicating that the information processing apparatus which has sent the information concerning the storage location associated with the updated authentication information does not have to notify the information processing apparatus identified by the apparatus identifying information of the updated authentication information, and notifying the information processing apparatus which has sent the information concerning the storage location associated with the updated authentication information of the apparatus identifying information and the public key in response to the information concerning the storage location received from the information processing apparatus;
• notifying, by the information processing apparatus, if the apparatus identifying information and the public key are received and if the information processing apparatus identified by the apparatus identifying information is a second information processing apparatus to which the notification excluding information is not added, the second information processing apparatus of the storage location associated with the updated authentication information and the updated authentication information;
• notifying, by the information processing apparatus, if the apparatus identifying information and the public key are received and if the information processing apparatus identified by the apparatus identifying information is a third information processing apparatus to which the notification excluding information is added, the management apparatus of the updated authentication information encrypted with the public key of the third information processing apparatus;
• and
• notifying, by the management apparatus, upon receiving communication from the third information processing apparatus, the third information processing apparatus of the storage location associated with the updated authentication information and the encrypted updated authentication information.

An information processing apparatus comprising:

• a memory that stores therein, in association with each storage location in which information is stored, authentication information to be used when storing processed information in a storage location;
• a first notifying unit that notifies, when authentication information associated with a storage location is updated, a management apparatus of the storage location associated with the updated authentication information;
• a second notifying unit that notifies, upon receiving, from the management apparatus, apparatus identifying information associated with the storage location sent from the first notifying unit, an information processing apparatus identified by the received apparatus identifying information of the storage location associated with the updated authentication information and the updated authentication information;
• and
• a third notifying unit that notifies, if the second notifying unit has failed to supply the storage location associated with the updated authentication information and the updated authentication information, the management apparatus of apparatus identifying information concerning a second information processing apparatus to which the second notifying unit has succeeded in supplying the storage location associated with the updated authentication information and the updated authentication information and apparatus identifying information concerning a third information processing apparatus to which the second notifying unit has failed to supply the storage location associated with the updated authentication information and the updated authentication information.

An information processing apparatus comprising:

• a memory that stores therein, in association with each storage location in which information is stored, authentication information to be used when storing processed information in a storage location;
• a first notifying unit that notifies, when authentication information associated with a storage location is updated, a management apparatus of the storage location associated with the updated authentication information;
• and
• a second notifying unit that notifies, upon receiving, from the management apparatus, apparatus identifying information associated with the storage location supplied from the first notifying unit and a public key associated with the apparatus identifying information, if an information processing apparatus identified by the apparatus identifying information is a second information processing apparatus to which information is not added, the second information processing apparatus of the storage location associated with the updated authentication information and the updated authentication information, and if an information processing apparatus identified by the apparatus identifying information is a third information processing apparatus to which information is added, the second notifying unit notifying the management apparatus of the updated authentication information encrypted with a public key of the third information processing apparatus.