JP2003523556A - クライアント固有の別個のキーを使用したキーの暗号化 - Google Patents

クライアント固有の別個のキーを使用したキーの暗号化

Info

Publication number
JP2003523556A
JP2003523556A JP2001533676A JP2001533676A JP2003523556A JP 2003523556 A JP2003523556 A JP 2003523556A JP 2001533676 A JP2001533676 A JP 2001533676A JP 2001533676 A JP2001533676 A JP 2001533676A JP 2003523556 A JP2003523556 A JP 2003523556A
Authority
JP
Japan
Prior art keywords
key
information
computer
encrypted
checksum
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.)
Pending
Application number
JP2001533676A
Other languages
English (en)
Japanese (ja)
Other versions
JP2003523556A5 (enExample
Inventor
シール，スコット
Original Assignee
ロックストリーム・コーポレイション
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 ロックストリーム・コーポレイション filed Critical ロックストリーム・コーポレイション
Publication of JP2003523556A publication Critical patent/JP2003523556A/ja
Publication of JP2003523556A5 publication Critical patent/JP2003523556A5/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/00818—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction limits the signal quality, e.g. by low-pass filtering of audio signals or by reducing the resolution of video signals
    • G11B20/00826—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction limits the signal quality, e.g. by low-pass filtering of audio signals or by reducing the resolution of video signals wherein a spoiler signal is added to degrade the signal quality
    • 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
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Technology Law (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
JP2001533676A 1999-10-23 2000-10-21 クライアント固有の別個のキーを使用したキーの暗号化 Pending JP2003523556A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/425,861 US6683954B1 (en) 1999-10-23 1999-10-23 Key encryption using a client-unique additional key for fraud prevention
US09/425,861 1999-10-23
PCT/US2000/029184 WO2001031839A2 (en) 1999-10-23 2000-10-21 Key encryption using client-unique additional key

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2011185989A Division JP2012105250A (ja) 1999-10-23 2011-08-29 クライアント固有の別個のキーを使用したキーの暗号化

Publications (2)

Publication Number Publication Date
JP2003523556A true JP2003523556A (ja) 2003-08-05
JP2003523556A5 JP2003523556A5 (enExample) 2011-05-06

Family

ID=23688338

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2001533676A Pending JP2003523556A (ja) 1999-10-23 2000-10-21 クライアント固有の別個のキーを使用したキーの暗号化
JP2011185989A Pending JP2012105250A (ja) 1999-10-23 2011-08-29 クライアント固有の別個のキーを使用したキーの暗号化

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2011185989A Pending JP2012105250A (ja) 1999-10-23 2011-08-29 クライアント固有の別個のキーを使用したキーの暗号化

Country Status (5)

Country Link
US (1) US6683954B1 (enExample)
EP (1) EP1222772A2 (enExample)
JP (2) JP2003523556A (enExample)
AU (1) AU1224701A (enExample)
WO (1) WO2001031839A2 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005347897A (ja) * 2004-05-31 2005-12-15 Kabe Toshiaki １組の電子鍵及びその生成方法
JP2008217236A (ja) * 2007-03-01 2008-09-18 Mitsubishi Electric Corp プログラム秘匿装置

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US7110547B2 (en) 2000-06-20 2006-09-19 University Of New Hampshire Method and apparatus for the compression and decompression of image files using a chaotic system
JP4736216B2 (ja) * 2000-07-17 2011-07-27 ソニー株式会社 データ入出力装置及び方法
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JP2008217236A (ja) * 2007-03-01 2008-09-18 Mitsubishi Electric Corp プログラム秘匿装置

Also Published As

Publication number Publication date
JP2012105250A (ja) 2012-05-31
EP1222772A2 (en) 2002-07-17
WO2001031839A2 (en) 2001-05-03
US6683954B1 (en) 2004-01-27
WO2001031839A3 (en) 2001-11-22
AU1224701A (en) 2001-05-08

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