Patent Number: 8,788,907

Title: Memory chip for converting data received from controller controlling reading and writing of data

Abstract: According to one embodiment, a memory chip, which is connected to a controller that controls reading and writing of data in response to a request from an external device, includes: a memory including a special area that is a predetermined data storage area; a key storage unit that stores therein a second key that corresponds to a first key used by the external device to convert the data; a converting unit that receives, from the controller, data to be written into the special area and generates converted data by converting the data to be written using the second key; and a writing unit that writes the converted data into the special area.

Inventors: Kambayashi; Toru (Kanagawa, JP), Kasahara; Akihiro (Chiba, JP), Matsukawa; Shinichi (Tokyo, JP), Sakamoto; Hiroyuki (Tokyo, JP), Kato; Taku (Kanagawa, JP), Sukegawa; Hiroshi (Tokyo, JP), Hirose; Yoshihiko (Kanagawa, JP), Shimbo; Atsushi (Tokyo, JP), Fujisaki; Koichi (Kanagawa, JP)

Assignee: Kabushiki Kaisha Toshiba

International Classification: H03M 13/00 (20060101)

Expiration Date: 2022-07-22 0:00:00