Patent ID: 7308582

Claim:
A collation processing apparatus attached to an external equipment having a network connecting function, the collation processing apparatus comprising: bio-information input means for inputting bio-information of a user; user bio-information memory means for storing regular user bio-information serving as bio-information of a regular user registered in advance; collating means for collating the bio-information input by the bio-information input means with the regular user bio-information stored in the regular user bio-information memory means; communication address memory means for storing a communication address serving as identification information which univocally determines the regular user on a network to which the external equipment is connected; communication address reading means for reading out a communication address of a collated regular user from the communication address memory means on the basis of a collation result by the collating means; communication address output means for outputting the communication address which has been read out by the reading means to the external equipment; address setting means for setting the communication address output by the communication address output means in the external equipment; user identification information memory means for storing user identification information which identifies the regular user; user identification information reading means for reading out predetermined user identification information from the user identification information memory means on the basis of a collation result by the collating means; user identification information output means for outputting, to the external equipment, the user identification information which has been read out by the user identification information reading means; first communication address receiving means for receiving a first communication address transmitted from a dynamic address assigning unit which dynamically assigns an address in accordance with the fact that the external equipment which has acquired the user identification information output by the user identification information output means makes a request for acquisition of a first communication address with respect to the dynamic address assigning unit connected to the network; and electronic signature generating means for generating an electronic signature on the basis of the first communication address received at the first communication address receiving means; wherein the communication address output means outputs the first communication address and the electronic signature to the external equipment; wherein the collation processing apparatus is a removable memory card and the bio-information input means is located on said removable memory card.