Title:
情報処理システム、プログラム間鍵共有方法、及びプログラム間鍵共有プログラム
Document Type and Number:
Japanese Patent JP7304430
Kind Code:
B2
Abstract:
In order to be able to securely share a key between programs, a terminal is provided with a first and a second key sharing program and a shared area, and a CPU repeatedly generates random data and stores the same in the shared area by allocating a resource to and executing the first key sharing program, repeatedly acquires the random data stored in the shared area by allocating a resource to and executing the second key sharing program, generates a second key and key generation information regarding the second key on the basis of the acquired random data, stores the key generation information in the shared area, and generates a first key on the basis of the key generation information stored in the shared area, by allocating a resource to and executing the first key sharing program.
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Inventors:
Manami Suzuki
Dai Watanabe
Kenta Takahashi
Masayuki Yoshino
Dai Watanabe
Kenta Takahashi
Masayuki Yoshino
Application Number:
JP2021563925A
Publication Date:
July 06, 2023
Filing Date:
December 04, 2020
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H04L9/08; G06F21/60
Domestic Patent References:
| JP2010161660A |
Foreign References:
| US20180157433 | ||||
| WO2011101972A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Wilfort International Patent Office