Patent ID: 7827417

Claim:
A storage device configured to sequentially input a converted command from an information processor, said converted command including command information and address information having been subjected to a data conversion and additionally including attached information, said storage device comprising: a storage unit configured to store key information; an input/output unit configured to input said converted command; an extractor configured to extract said attached information from said converted command inputted, to read out, from an address according to said attached information, said key information from said storage unit, and to perform an inverse data conversion corresponding to said data conversion on said converted command, using said key information, to extract said command information and said address information; and an output controller configured to, only when said command information is equivalent to predetermined information, read out and output storage data from an address of said storage unit through said input/output unit, the address of said storage data indicated by said address information extracted by said extractor.