| 摘要 |
PROBLEM TO BE SOLVED: To enable one user to use a plurality of electronic signature keys for different purposes. SOLUTION: An electronic signature providing method in an electronic signature providing apparatus for providing an electronic signature to electronic data has a signature target data input step (SQ2) of inputting data of an electronic signature target; a signature key provision requesting step (SQ8) of requesting presentation of attributes information of at least one or more signature keys; a signature key presenting step (SQ12) of displaying the attributes information of one or more signature keys presented in response to the request in the signature key presentation requesting step, to a user; a signature data creation requesting step (SQ15) for requesting to create signature data using the electronic data inputted in the signature target data input step, and a signature key corresponding to the attributes information of a signature key selected by the user from among the attributes information of the one or more signature keys displayed on the signature key display step; and a signature data storing step (SQ20) for storing the signature data created in response to the request in the signature data creation requesting step, or a signature file created on the basis of the signature data, in a storing means. COPYRIGHT: (C)2006,JPO&NCIPI
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