WO2008037727A3 - Method and device for the creation of an encryption key, use of said method, and processing means for using the encryption key - Google Patents

Method and device for the creation of an encryption key, use of said method, and processing means for using the encryption key Download PDF

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Publication number
WO2008037727A3
WO2008037727A3 PCT/EP2007/060192 EP2007060192W WO2008037727A3 WO 2008037727 A3 WO2008037727 A3 WO 2008037727A3 EP 2007060192 W EP2007060192 W EP 2007060192W WO 2008037727 A3 WO2008037727 A3 WO 2008037727A3
Authority
WO
WIPO (PCT)
Prior art keywords
encryption key
key
processing means
creation
encryption
Prior art date
Application number
PCT/EP2007/060192
Other languages
German (de)
French (fr)
Other versions
WO2008037727A2 (en
Inventor
Robert Kutka
Juergen Pandel
Original Assignee
Siemens Ag
Robert Kutka
Juergen Pandel
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 Siemens Ag, Robert Kutka, Juergen Pandel filed Critical Siemens Ag
Publication of WO2008037727A2 publication Critical patent/WO2008037727A2/en
Publication of WO2008037727A3 publication Critical patent/WO2008037727A3/en

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
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/061—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key exchange, e.g. in peer-to-peer networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26613—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing keys in general
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Storage Device Security (AREA)

Abstract

The invention relates to a method for creating an encryption key. In said method, a first data content encrypted with a first key is transcoded, by means of the encryption key, into a second data content encrypted with a second key, the encryption key being created by linking a first inverse key that is inverse to the first key to the second key. The invention further relates to a device for creating an encryption key, a use of said method, and a processing means for using the encryption key.
PCT/EP2007/060192 2006-09-29 2007-09-26 Method and device for the creation of an encryption key, use of said method, and processing means for using the encryption key WO2008037727A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610046211 DE102006046211A1 (en) 2006-09-29 2006-09-29 Method and device for creating a coding key, and use of the method and processing means for using the coding key
DE102006046211.4 2006-09-29

Publications (2)

Publication Number Publication Date
WO2008037727A2 WO2008037727A2 (en) 2008-04-03
WO2008037727A3 true WO2008037727A3 (en) 2008-05-22

Family

ID=39134319

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/060192 WO2008037727A2 (en) 2006-09-29 2007-09-26 Method and device for the creation of an encryption key, use of said method, and processing means for using the encryption key

Country Status (2)

Country Link
DE (1) DE102006046211A1 (en)
WO (1) WO2008037727A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19907964C1 (en) * 1999-02-24 2000-08-10 Fraunhofer Ges Forschung Encryption device for audio and/or video signals uses coder providing data stream with pre-determined syntax and encryption stage altering useful data in data stream without altering syntax
US20040190712A1 (en) * 1997-03-11 2004-09-30 Rose Gregory G. Method and apparatus for encrypting data in a wireless communication system
US20050172127A1 (en) * 2004-01-31 2005-08-04 Frank Hartung System and method for transcoding encrypted multimedia messages transmitted between two devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6859533B1 (en) * 1999-04-06 2005-02-22 Contentguard Holdings, Inc. System and method for transferring the right to decode messages in a symmetric encoding scheme
US7184550B2 (en) * 2002-08-15 2007-02-27 Intel Corporation Method and apparatus for simultaneous decryption and re-encryption of publicly distributed content via stream ciphers
WO2006066999A2 (en) * 2004-12-22 2006-06-29 International Business Machines Corporation Method, system and computer program product for handling data

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040190712A1 (en) * 1997-03-11 2004-09-30 Rose Gregory G. Method and apparatus for encrypting data in a wireless communication system
DE19907964C1 (en) * 1999-02-24 2000-08-10 Fraunhofer Ges Forschung Encryption device for audio and/or video signals uses coder providing data stream with pre-determined syntax and encryption stage altering useful data in data stream without altering syntax
US20050172127A1 (en) * 2004-01-31 2005-08-04 Frank Hartung System and method for transcoding encrypted multimedia messages transmitted between two devices

Also Published As

Publication number Publication date
DE102006046211A1 (en) 2008-04-03
WO2008037727A2 (en) 2008-04-03

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