Storage device, controller for storage device, and

专利名称：Storage device, controller for storage

device, and storage device control method

发明人：Harumi Morino,Jun Kitahara,Mariko

Kasai,Yoshiju Watanabe

申请号：US11707740申请日：20070215

公开号：US200702212A1公开日：20070927

专利附图：

摘要：Embodiments in accordance with the present invention relate to realizingcontent protection by enhancing data safety by detecting falsification of data stored in a

storage device. A storage device in accordance with an embodiment of the presentinvention includes an HDA (Head Disk Assembly) and a controller, and a nonvolatilememory that is connected to the controller. When writing data on a hard disk from anexternal device, validity of access is authenticated. When the authentication is successful,a digest of the data to be written is generated by using a hush function. The generateddigest is stored in the nonvolatile memory. When reading out data, a digest of the datato be read out is generated, and the digest stored in the nonvolatile memory is read out,followed by verification of whether or not the digests coincide with each other. Sincethere is a possibility of falsification in the case where the digests do not coincide witheach other, the possibility of falsification is informed to the external device.

申请人：Harumi Morino,Jun Kitahara,Mariko Kasai,Yoshiju Watanabe

地址：Kanagawa JP,Kanagawa JP,Kanagawa JP,Kanagawa JP

国籍：JP,JP,JP,JP

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