Title:
データ交換処理装置およびデータ交換処理方法
Document Type and Number:
Japanese Patent JP5457451
Kind Code:
B2
Abstract:
The data exchange processing apparatus pertaining to the present invention includes a cryptographic engine unit performing cryptographic processing and verification processing, a stream control unit outputting content while performing cryptographic processing of the content using the cryptographic engine unit, an unauthorized device list update unit verifying an unauthorized device list using the cryptographic engine unit, and a state management unit outputting a permission notification to the unauthorized device list update unit when detecting a low load section of the content according to metadata of the content and processing position of the stream control unit, the low load section being a section in which processing load on the cryptographic engine unit is lower than in other sections. The unauthorized device list update unit, when receiving the permission notification from the state management unit, causes the cryptographic engine unit to execute verification processing of the unauthorized device list.
Inventors:
Katsuhisa Yamaguchi
Kazuhiro Nomura
Kazuhiro Nomura
Application Number:
JP2011520766A
Publication Date:
April 02, 2014
Filing Date:
June 23, 2010
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H04L9/18; G06F21/10; G06F21/55
Domestic Patent References:
| JP2008131557A | 2008-06-05 | |||
| JP2007081953A | 2007-03-29 | |||
| JP5052802A | ||||
| JP2004200827A | 2004-07-15 | |||
| JP2002135243A | 2002-05-10 | |||
| JP2000261472A | 2000-09-22 |
Attorney, Agent or Firm:
Shiro Nakajima
Kobayashi Kunito
Koji Kawabata
Koichi Kimura
Kobayashi Kunito
Koji Kawabata
Koichi Kimura
Previous Patent: JPS5457450
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