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
  • H04L9/08—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
  • 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
  • H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
• • 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
  • H04L2209/601—Broadcast encryption

Landscapes

• Engineering & Computer Science (AREA)
• Computer Security & Cryptography (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Mobile Radio Communication Systems (AREA)
• Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
• Storage Device Security (AREA)
• Time Recorders, Dirve Recorders, Access Control (AREA)
• Telephonic Communication Services (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=7774922

Family Applications (1)

Country Status (8)

Families Citing this family (16)

Family Cites Families (8)

• 1995
  • 1995-10-14 DE DE19538385A patent/DE19538385A1/de not_active Withdrawn
• 1996
  • 1996-05-10 EP EP96107509A patent/EP0768773B1/de not_active Expired - Lifetime
  • 1996-05-10 DE DE59603557T patent/DE59603557D1/de not_active Expired - Lifetime
  • 1996-05-10 AT AT96107509T patent/ATE186432T1/de not_active IP Right Cessation
  • 1996-06-24 NO NO962672A patent/NO962672L/no unknown
  • 1996-07-17 NZ NZ299014A patent/NZ299014A/en unknown
  • 1996-07-24 CA CA002181972A patent/CA2181972A1/en not_active Abandoned
  • 1996-09-20 AU AU65727/96A patent/AU721074B2/en not_active Ceased
  • 1996-10-11 US US08/731,364 patent/US5903649A/en not_active Expired - Lifetime

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