| 摘要 |
PROBLEM TO BE SOLVED: To save the procedure of ciphering and deciphering and to save the distribution procedure of a public key or a secret key by ciphering a resource identifier for specifying data on a network and deciphering it, based on a decipher key. SOLUTION: An identifier management means 105 is operated so as to urge the input of a ciphered resource identifier (URL) and send the inputted and ciphered URL to a deciphering means 103. The deciphering means 103 deciphers the original URL from the ciphered URL and the decipher key, and if the deciphered URL is correct, delivers it to a client program. In the case the deciphering is not correctly performed or the deciphered URL is not correct, information for indicating incorrect user ID information is sent to the client program. Then, in the case the correct URL is delivered, protocol information, the host information of a server program and resource information on the server program, etc., are fetched so as to obtain a network resource, communication is performed with the server program and the network resource is obtained. |
