| 摘要 |
PROBLEM TO BE SOLVED: To improve security in network and certainty for request for processing. SOLUTION: In the case of user registration, a print server 12 forms a secret key KdS and a public key KeS, and delivers the public key KeS to a user terminal 14, who forms a user ID, a secret key KdU and a public key KeU, encrypts the user ID and the public key KeU by using the public key KeS, and delivers them to the print server. In the case of print request, the user ID and a document 50 are encrypted by using the public key KeS. When print processing is received, the print server 12 forms a pass-word, encrypts it by using the public key KeU, and delivers it to the user terminal 14. By inputting the pass- word in an input part 56, the user can receive printed results. |
