Patent ID: 8255657
Filing Date: 2012-08-28
Classification: G06F,H04N,Y04S

Abstract:
1. An information storage device that can move data stored on a first storage medium to a second storage medium, comprising: a data moving unit to encrypt the data stored on the first storage medium with the use of a second medium identifier to identify the second storage medium obtained from the second storage medium, and to move the data from the first storage medium to the second storage medium after making the data unreproducible; an abnormality detecting unit to detect an abnormal termination of the data moving unit; a storage medium verifying unit to verify whether a third storage medium is the second storage medium used when the abnormal termination was detected, before moving the data from the first storage medium to the third storage medium upon detection of the abnormal termination of the data moving unit by the abnormality detecting unit, the storage medium verifying unit comprising, a third medium identifier obtaining unit to obtain from the third storage medium a third medium identifier to identify the third storage medium, and a decryption verifying unit to verify whether the third storage medium is the second storage medium used when the abnormality detecting unit detected an abnormal termination by decrypting the data on the first storage medium with the use of the third medium identifier; a medium initializing unit to initialize the third storage medium when the storage medium verifying unit determines that the third storage medium is the second storage medium used when the abnormal termination was detected; and a reactivating unit to make the data reproducible upon completion of initializing the third storage medium by the medium initializing unit.