Title:
情報処理装置
Document Type and Number:
Japanese Patent JP6741236
Kind Code:
B2
Abstract:
In order to make an update in a secure environment, a hypervisor program (Ph) is installed in an information processing device (100), and the information processing device (100) is caused to execute a first OS and a second OS in parallel. An application of a first attribution is normally executed under management of the first OS. For an update of the first OS or an update of the application of the first attribution, an encrypted update file (F2) is received from an update server (200), is written into a shared memory region (121) through a first management program (Ma), and is delivered to a second management program (Mb). The second management program (Mb) decrypts the encrypted update file (F2) under management of the second OS providing a secure environment, and writes a decrypted update file (F3) in a predetermined storage area (an internal memory or an external memory). Subsequently, an update process is executed with use of the decrypted update file (F3) under management of the first OS.
Inventors:
Uemura Yoshiaki
Tomotsune Hamano
Yoshihiro Yano
Atsuhiro Sahashi
Tomotsune Hamano
Yoshihiro Yano
Atsuhiro Sahashi
Application Number:
JP2018550982A
Publication Date:
August 19, 2020
Filing Date:
November 21, 2016
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G06F21/57
Domestic Patent References:
| JP2011118873A | ||||
| JP2014503101A |
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Satoru Asakura
Takeyuki Suzuki
Yukitaka Nakamura
Satoru Asakura
Takeyuki Suzuki