Patent ID: 8601077
Filing Date: 2013-12-03
Classification: G06F,H04L

Abstract:
1. A server apparatus connectable to a plurality of client apparatus, the server apparatus comprising: a control section configured so as to acquire, on receiving data transmitted from a source in a situation where a client apparatus is in use among the plurality of client apparatus, source data and destination data included in the data and so as to transmit the data to a destination based on the destination data; and a memory section, wherein the memory section is configured so as to store a security information table for storing a plurality of pieces of destination management information, a trust information table for storing a plurality of pieces of source management information, and a message information table for storing a plurality of pieces of message information, wherein the destination management information includes initial destination identification information, changed destination identification information that is set only when the initial destination identification information has been changed, and a security level indicating an extent to which personal information on a destination can be disclosed; the source management information includes source identification information, and a trust level indicating a degree to which a source is allowed to obtain the personal information on a destination; the message information includes a first message that includes a piece of personal information on a destination that depends on a trust level; and the control section is configured in such a manner that, referring to the memory section on receiving the data and upon judging that a piece of changed destination identification information is included in first destination management information that corresponds to the destination data in the data, and then extracting, from the message information, a first message that depends on a trust level included in first source management information that corresponds to the source data in the data, it transmits the first message, making use of the piece of changed destination identification information in the first destination management information as the destination data.