JP4476302B2 - 映像処理装置 - Google Patents

映像処理装置 Download PDF

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Publication number
JP4476302B2
JP4476302B2 JP2007005284A JP2007005284A JP4476302B2 JP 4476302 B2 JP4476302 B2 JP 4476302B2 JP 2007005284 A JP2007005284 A JP 2007005284A JP 2007005284 A JP2007005284 A JP 2007005284A JP 4476302 B2 JP4476302 B2 JP 4476302B2
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JP
Japan
Prior art keywords
video
key
data
key data
server
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2007005284A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008172647A5 (enExample
JP2008172647A (ja
Inventor
慎矢 小倉
誠一 平井
宗光 桑原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kokusai Denki Electric Inc
Original Assignee
Hitachi Kokusai Electric Inc
Kokusai Denki Electric Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Kokusai Electric Inc, Kokusai Denki Electric Inc filed Critical Hitachi Kokusai Electric Inc
Priority to JP2007005284A priority Critical patent/JP4476302B2/ja
Priority to US12/007,550 priority patent/US20080175392A1/en
Publication of JP2008172647A publication Critical patent/JP2008172647A/ja
Publication of JP2008172647A5 publication Critical patent/JP2008172647A5/ja
Application granted granted Critical
Publication of JP4476302B2 publication Critical patent/JP4476302B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)
JP2007005284A 2007-01-15 2007-01-15 映像処理装置 Active JP4476302B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007005284A JP4476302B2 (ja) 2007-01-15 2007-01-15 映像処理装置
US12/007,550 US20080175392A1 (en) 2007-01-15 2008-01-11 Image processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007005284A JP4476302B2 (ja) 2007-01-15 2007-01-15 映像処理装置

Publications (3)

Publication Number Publication Date
JP2008172647A JP2008172647A (ja) 2008-07-24
JP2008172647A5 JP2008172647A5 (enExample) 2009-03-05
JP4476302B2 true JP4476302B2 (ja) 2010-06-09

Family

ID=39641219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007005284A Active JP4476302B2 (ja) 2007-01-15 2007-01-15 映像処理装置

Country Status (2)

Country Link
US (1) US20080175392A1 (enExample)
JP (1) JP4476302B2 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090220088A1 (en) * 2008-02-28 2009-09-03 Lu Charisse Y Autonomic defense for protecting data when data tampering is detected
JP5304345B2 (ja) * 2009-03-11 2013-10-02 富士通株式会社 コンテンツ処理装置、コンテンツ処理システム、およびコンテンツ処理プログラム
WO2013014734A1 (ja) 2011-07-25 2013-01-31 三菱電機株式会社 暗号化装置、暗号化方法及び暗号化プログラム
US8874898B2 (en) * 2012-12-14 2014-10-28 Intel Corporation Power line based theft protection of electronic devices
US10116450B1 (en) * 2016-11-02 2018-10-30 ISARA Corporation Merkle signature scheme using subtrees
JP6852009B2 (ja) * 2018-03-20 2021-03-31 株式会社東芝 情報処理装置及び情報処理方法
US10581616B1 (en) 2019-07-11 2020-03-03 ISARA Corporation Managing nodes of a cryptographic hash tree in a hash-based digital signature scheme

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5754659A (en) * 1995-12-22 1998-05-19 General Instrument Corporation Of Delaware Generation of cryptographic signatures using hash keys
US20030204731A1 (en) * 2002-04-29 2003-10-30 Pochuev Denis A. Method and apparatus to enhance the security of data
JP4036838B2 (ja) * 2004-03-12 2008-01-23 インターナショナル・ビジネス・マシーンズ・コーポレーション セキュリティ装置、情報処理装置、セキュリティ装置が実行する方法、情報処理装置が実行する方法、該方法を実行させるための装置実行可能なプログラムおよびチケット・システム
JP4256859B2 (ja) * 2005-04-21 2009-04-22 シャープ株式会社 半導体記憶装置

Also Published As

Publication number Publication date
JP2008172647A (ja) 2008-07-24
US20080175392A1 (en) 2008-07-24

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