| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a data cache device and an information processor for improving the security of the cache data of image information to be transferred through the Internet. <P>SOLUTION: In transferring, client/server type data when cache is used by a client side, cache information is encrypted by using information unique to the client equipment, information unique to a user (password designated by user or random value linked to user) or the combination of those information as a key so that information can be prevented from being reconfigured by anything other than the equipment or user. Even as for divided images received based on JPIP standard, whole divided images or especially significant divided images or designated divided images are encrypted so that the divided images can be prevented from being reconfigured. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
