| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To ensure strong security, to allow an information providing side to have flexibility in access control to disclosed data on a network, and to allow the information obtaining side to easily access data having different control levels, in authenticating access to the disclosed data on a network. <P>SOLUTION: In an access authentication system, a first server device has an individual authentication request means for requesting individual authentication to a third client device when access to an access-restricted registration file is requested. A second server device includes: an encryption means for encrypting the access-restricted registration file; an information management means for managing the encrypted file and access restriction contents; an individual authentication means for performing the individual authentication using user information from the third client device; a decryption means for decrypting the encrypted file when a proper individual authentication result is obtained; and a file transmission means for transmitting the decrypted registration file to a second client device. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
