Information processing apparatus, management apparatus, communication system and computer readable medium

A management apparatus connected to an information processing apparatus and a plurality of information processing apparatuses other than the information processing apparatus via a communication line comprising:

• an apparatus information transmission unit that transmits, to the information processing apparatus, information concerning the plurality of other information processing apparatuses;
• a key acquisition unit that acquires from the information processing apparatus a key to be used in encrypted communication between the information processing apparatus and each of the plurality of other information processing apparatuses;
• and
• a key transmitting unit that transmits to the information processing apparatus the key to be used in encrypted communication between the information processing apparatus and each of the plurality of other information processing apparatuses.

A communication system comprising:

• a management apparatus;
• and
• an information processing apparatus connected to a management apparatus via a communication line,
• wherein
• the management apparatus connected to the information processing apparatus and a plurality of information processing apparatuses other than the information processing apparatus via the communication line,
• wherein
• the information processing apparatuses comprises:
• an other-apparatuses information acquisition unit that acquires information concerning the plurality of other information processing apparatuses connected to a management apparatus, from the management apparatus connected via the communication line;
• a key registration unit that registers first keys to be used in encrypted communication between the information processing apparatus and each of the plurality of other information processing apparatuses, into a storage unit, wherein each of the first keys is associated with a respective one of the plurality of other information processing apparatuses;
• a key transmitting unit that collectively transmits the first keys to the management apparatus;
• and
• a key acquisition unit that acquires from the management apparatus second keys that each corresponds to the information processing apparatus and that each has been transmitted to the management apparatus, from the respective one of plurality of other information processing apparatuses,
• wherein
• the key registration unit further registers the second keys acquired by the key acquisition unit into the storage unit, and
• each of the second keys is associated with the respective one of the plurality of other information processing apparatuses, and
• wherein
• the management apparatus comprises:
• an apparatus information transmission unit that transmits, to the information processing apparatus, information concerning the plurality of other information processing apparatuses;
• a key acquisition unit that acquires from the information processing apparatus a key to be used in encrypted communication between the information processing apparatus and each of the plurality of other information processing apparatuses;
• and
• a key transmitting unit that transmits to the information processing apparatus the key to be used in encrypted communication between the information processing apparatus and each of the plurality of other information processing apparatuses.

A computer readable medium storing a program causing a computer to execute a process for communications between a information processing apparatus and a plurality of other information processing apparatuses via a communication line, the process comprising:

• acquiring information concerning the plurality of other information processing apparatuses connected to a management apparatus, from the management apparatus connected via communication line;
• storing first keys to be used in encrypted communication between the information processing apparatus and each of the plurality of other information processing apparatuses, into a storage, wherein each of the first keys is associated with a respective one of the plurality of other information processing apparatuses;
• transmitting collectively the first keys to the management apparatus;
• acquiring from the management apparatus second keys that each corresponds to the information processing apparatus and that each has been transmitted from the respective one of plurality of other information processing apparatuses to the management apparatus;
• and
• storing the second keys acquired by the key acquisition unit,
• wherein each of second keys is associated with the respective one of the plurality of other information processing apparatuses.

A computer readable medium storing a program causing a computer to execute a process for communications between a information processing apparatus and a plurality of other information processing apparatuses via a communication line, the process comprising:

• transmitting, to the information processing apparatus, information concerning the plurality of other information processing apparatus;
• acquiring from the information processing apparatus a key to be used in encrypted communication between the information processing apparatus and each of the plurality of other information processing apparatuses;
• and
• transmitting to the information processing apparatus the key to be used in encrypted communication between the information processing apparatus and each of the plurality of other information processing apparatuses.