ATE397337T1 - Verfahren zur übertragung der befugnis, nachrichten zu entschlüsseln - Google Patents

Verfahren zur übertragung der befugnis, nachrichten zu entschlüsseln

Info

Publication number
ATE397337T1
ATE397337T1 AT00121783T AT00121783T ATE397337T1 AT E397337 T1 ATE397337 T1 AT E397337T1 AT 00121783 T AT00121783 T AT 00121783T AT 00121783 T AT00121783 T AT 00121783T AT E397337 T1 ATE397337 T1 AT E397337T1
Authority
AT
Austria
Prior art keywords
decrypt messages
transferring power
encoding
methods
messages
Prior art date
Application number
AT00121783T
Other languages
English (en)
Inventor
Xin Wang
Original Assignee
Contentguard Holdings 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
Priority claimed from US09/468,703 external-priority patent/US7286665B1/en
Application filed by Contentguard Holdings Inc filed Critical Contentguard Holdings Inc
Application granted granted Critical
Publication of ATE397337T1 publication Critical patent/ATE397337T1/de

Links

Classifications

    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3006—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
    • H04L9/3013—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters involving the discrete logarithm problem, e.g. ElGamal or Diffie-Hellman systems
    • 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
    • H04L2209/76—Proxy, i.e. using intermediary entity to perform cryptographic operations
AT00121783T 1999-12-21 2000-10-05 Verfahren zur übertragung der befugnis, nachrichten zu entschlüsseln ATE397337T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/468,703 US7286665B1 (en) 1999-04-06 1999-12-21 System and method for transferring the right to decode messages

Publications (1)

Publication Number Publication Date
ATE397337T1 true ATE397337T1 (de) 2008-06-15

Family

ID=23860894

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00121783T ATE397337T1 (de) 1999-12-21 2000-10-05 Verfahren zur übertragung der befugnis, nachrichten zu entschlüsseln

Country Status (5)

Country Link
EP (1) EP1113617B1 (de)
JP (1) JP4010766B2 (de)
AT (1) ATE397337T1 (de)
DE (1) DE60039022D1 (de)
ES (1) ES2304929T3 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG103829A1 (en) * 2000-01-28 2004-05-26 Canon Kk Digital contents distribution system, digital contents distribution method, roaming server, information processor, and information processing method
WO2002030041A2 (en) 2000-10-03 2002-04-11 Omtool, Ltd Electronically verified digital signature and document delivery system and method
US7170997B2 (en) 2000-12-07 2007-01-30 Cryptico A/S Method of generating pseudo-random numbers in an electronic device, and a method of encrypting and decrypting electronic data
DE60127681T2 (de) * 2001-10-19 2008-01-03 Sony Corp. System zum Inhaltsschutz und zur Kopierverwaltung für ein Netzwerk
JP3864249B2 (ja) 2002-06-04 2006-12-27 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 暗号通信システム、その端末装置及びサーバ
US8689000B2 (en) 2003-05-21 2014-04-01 Hewlett-Packard Development Company, L.P. Use of certified secrets in communication
US7895651B2 (en) 2005-07-29 2011-02-22 Bit 9, Inc. Content tracking in a network security system
US8984636B2 (en) 2005-07-29 2015-03-17 Bit9, Inc. Content extractor and analysis system
US8272058B2 (en) 2005-07-29 2012-09-18 Bit 9, Inc. Centralized timed analysis in a network security system
JP5446453B2 (ja) * 2009-04-30 2014-03-19 ソニー株式会社 情報処理装置、電子署名生成システム、電子署名用の鍵生成方法、情報処理方法、及びプログラム
JP5361920B2 (ja) * 2011-02-16 2013-12-04 株式会社東芝 ファイルサーバシステム
JP5377540B2 (ja) * 2011-02-17 2013-12-25 株式会社東芝 鍵管理システム
SG194762A1 (en) * 2011-04-27 2013-12-30 Toshiba Kk Re-encryption key generator, re-encryption apparatus, and program
JP5494603B2 (ja) * 2011-09-29 2014-05-21 沖電気工業株式会社 セキュリティ処理代行システム
US9647835B2 (en) * 2011-12-16 2017-05-09 Akamai Technologies, Inc. Terminating SSL connections without locally-accessible private keys
JP5389212B2 (ja) 2012-03-28 2014-01-15 株式会社東芝 再暗号文検証プログラム、再暗号化装置及び再暗号化システム
JP6019453B2 (ja) 2012-07-05 2016-11-02 株式会社クリプト・ベーシック 暗号化装置、復号化装置、及びプログラム
EP2884690A4 (de) * 2012-08-08 2016-03-09 Toshiba Kk Vorrichtung zur erzeugung eines neuverschlüsselungsschlüssels, neuverschlüsselungsvorrichtung, verschlüsselungsvorrichtung, entschlüsselungsvorrichtung und programm
DE102012017826A1 (de) * 2012-09-10 2014-03-13 Giesecke & Devrient Gmbh Verfahren zur Erstellung einer abgeleiteten Instanz eines Originaldatenträgers

Also Published As

Publication number Publication date
ES2304929T3 (es) 2008-11-01
JP4010766B2 (ja) 2007-11-21
EP1113617B1 (de) 2008-05-28
EP1113617A3 (de) 2003-08-27
DE60039022D1 (de) 2008-07-10
EP1113617A2 (de) 2001-07-04
JP2001202010A (ja) 2001-07-27

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Legal Events

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