| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To easily impose use restrictions to an SDK without using an activation key such as a USB memory and without changing an internal structure of the SDK by a software distribution source for an image forming device. <P>SOLUTION: A control unit 41 sets use-restriction information to a use-restriction plug-in source file 28X through a use-restriction plug-in preparation unit 45 and a use-restriction plug-in edit unit 46. The use restriction plug-in preparation part 45 generates a pair of a secret key and a public key through a key generation unit 47. The use-restriction plug-in preparation unit 45 compiles a processing object 49 with the use-restriction information set thereto through a build unit 48, encrypts a hash value thereof with the secret key to generate a digital signature, includes it and a public key token corresponding to the public key in an assembly manifest, and generates a use restriction plug-in including it. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
