JP4161859B2 - 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム - Google Patents

情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム Download PDF

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Publication number
JP4161859B2
JP4161859B2 JP2003319590A JP2003319590A JP4161859B2 JP 4161859 B2 JP4161859 B2 JP 4161859B2 JP 2003319590 A JP2003319590 A JP 2003319590A JP 2003319590 A JP2003319590 A JP 2003319590A JP 4161859 B2 JP4161859 B2 JP 4161859B2
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JP
Japan
Prior art keywords
ciphertext
key
subset
information
information processing
Prior art date
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Expired - Fee Related
Application number
JP2003319590A
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English (en)
Japanese (ja)
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JP2005086747A5 (enExample
JP2005086747A (ja
Inventor
智之 浅野
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.)
Sony Corp
Original Assignee
Sony Corp
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.)
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Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP2003319590A priority Critical patent/JP4161859B2/ja
Priority to US10/939,035 priority patent/US8290155B2/en
Publication of JP2005086747A publication Critical patent/JP2005086747A/ja
Publication of JP2005086747A5 publication Critical patent/JP2005086747A5/ja
Application granted granted Critical
Publication of JP4161859B2 publication Critical patent/JP4161859B2/ja
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    • 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
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • H04L9/0833—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
    • H04L9/0836—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key using tree structure or hierarchical structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
JP2003319590A 2003-09-11 2003-09-11 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム Expired - Fee Related JP4161859B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003319590A JP4161859B2 (ja) 2003-09-11 2003-09-11 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム
US10/939,035 US8290155B2 (en) 2003-09-11 2004-09-10 Information processing apparatus, information recording medium, information processing method and computer program

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003319590A JP4161859B2 (ja) 2003-09-11 2003-09-11 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム

Publications (3)

Publication Number Publication Date
JP2005086747A JP2005086747A (ja) 2005-03-31
JP2005086747A5 JP2005086747A5 (enExample) 2005-08-11
JP4161859B2 true JP4161859B2 (ja) 2008-10-08

Family

ID=34418496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003319590A Expired - Fee Related JP4161859B2 (ja) 2003-09-11 2003-09-11 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム

Country Status (2)

Country Link
US (1) US8290155B2 (enExample)
JP (1) JP4161859B2 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001093055A1 (en) * 2000-06-01 2001-12-06 Safa Soft Co. Ltd Total system for preventing information outflow from inside
US20080244695A1 (en) * 2000-06-01 2008-10-02 Jong-Sung Lee Total system for preventing information outflow from inside
JP2009044516A (ja) * 2007-08-09 2009-02-26 Kddi Corp ブロードキャスト暗号の生成方法およびプログラム
JP5286748B2 (ja) * 2007-11-09 2013-09-11 ソニー株式会社 情報処理装置、鍵設定方法、及びプログラム
JP2009284220A (ja) * 2008-05-22 2009-12-03 Kddi Corp ３分木型ｓｄ法およびプログラム
US8332661B2 (en) * 2008-09-11 2012-12-11 Mostovych Andrew N Method and apparatus for prevention of tampering, unauthorized use, and unauthorized extraction of information from microdevices
KR101252549B1 (ko) * 2008-11-21 2013-04-08 한국전자통신연구원 보안 도메인 환경에서의 암/복호화 프로그램 및 대칭키의 안전 배포 방법 및 이를 위한 데이터 분할 및 주입 장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4622064B2 (ja) 2000-04-06 2011-02-02 ソニー株式会社 情報記録装置、情報再生装置、情報記録方法、情報再生方法、および情報記録媒体、並びにプログラム提供媒体
US7505599B2 (en) * 2000-04-06 2009-03-17 Sony Corporation Information processing system and method for managing encrypted data with tag information
US7010125B2 (en) 2001-01-26 2006-03-07 Interntional Business Machines Corporation Method for tracing traitor receivers in a broadcast encryption system
JP4199472B2 (ja) 2001-03-29 2008-12-17 パナソニック株式会社 暗号化を施すことによりデータを保護するデータ保護システム

Also Published As

Publication number Publication date
US8290155B2 (en) 2012-10-16
US20050105737A1 (en) 2005-05-19
JP2005086747A (ja) 2005-03-31

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