TASKalfa 3500i, TASKalfa 4500i, TASKalfa 5500i
Data Security Kit (E) Overseas Version Security Target
© 2011 KYOCERA MITA Corporation
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the AES encryption algorithm.
7.2. Overwrite-erase Function
TSF.OVERWRITE
After process of the basic functions such as the copy function, the network scan
function, the print function and the document management box function is
completed, or after the cancellation made by cancel operation during these
processing are completed, MFP deletes used image data in the HDD. The
overwrite-erase function is the function that logically deletes not only the
management information of the stored image data in the HDD, but also entirely
overwrites and erases the actual image data area with meaningless character strings
so that it disables re-usage of the data when receiving an instruction for deletion of
the stored image data in the HDD
(1) FDP_RIP.1 Subset Residual Information Protection
The TOE stores the used image data to be overwritten and erased in the specific area
on the HDD, and then conducts to overwrite and erase by the process of auditing of
the specific area. When receiving an instruction for operation of another basic
function and so when waiting for the overwrite-erase function to be performed, the
overwrite-erase shall be conducted by the audit process at the time of being released
of the waiting status.
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