To provide a license acquisition device and a license acquisition method for simplifying license acquisition processing while maintaining secure license acquisition processing for allowing easy acquisition of a license.
This license acquisition device 10 is provided with: a license acquisition request detection part 81; a session ID generation part generating a session ID; a license acquisition request message transmission part transmitting a storage destination ID and a license acquisition request message; a license acquisition answer message reception part; a verification part 85 verifying a one-time character assurance of a message; and a storage part 1 storing the license in a storage area according to the storage destination ID. Inside the same acquisition session, only such exchange as allows transmission of the license acquisition request message once and receipt of a license acquisition answer message once is carried out.
COPYRIGHT: (C)2007,JPO&INPIT
Hiroshi Kuno
Atsushi Nakamura
Seiichi Adachi
| JP2003016041A | ||||
| JP2003345743A |
Tetsuo Kanamoto
Koji Hagiwara