Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
  • H04K1/00—Secret communication
• • 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
  • H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
• • 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
  • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q11/00—Selecting arrangements for multiplex systems
  • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
  • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
  • H04Q11/0435—Details
• • 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
  • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
  • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
  • H04Q2213/13209—ISDN
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
  • H04Q2213/1333—Random systems
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
  • H04Q2213/13339—Ciphering, encryption, security

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Computer Security & Cryptography (AREA)
• Mobile Radio Communication Systems (AREA)
• Data Exchanges In Wide-Area Networks (AREA)
• Telephonic Communication Services (AREA)
• Time-Division Multiplex Systems (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10589579

Family Applications (1)

Country Status (14)

Families Citing this family (20)

Family Cites Families (6)

• 1985
  • 1985-12-11 GB GB8530485A patent/GB2191661B/en not_active Expired
• 1986
  • 1986-11-20 DE DE8686309084T patent/DE3688423T2/de not_active Expired - Fee Related
  • 1986-11-20 EP EP86309084A patent/EP0225756B1/en not_active Expired - Lifetime
  • 1986-11-20 ES ES198686309084T patent/ES2040700T3/es not_active Expired - Lifetime
  • 1986-11-25 KR KR860009944A patent/KR870006743A/ko not_active Abandoned
  • 1986-11-25 IN IN903/MAS/86A patent/IN169111B/en unknown
  • 1986-12-09 DK DK591286A patent/DK591286A/da not_active Application Discontinuation
  • 1986-12-10 FI FI865023A patent/FI865023A7/fi not_active IP Right Cessation
  • 1986-12-10 JP JP61294593A patent/JPS62140532A/ja active Pending
  • 1986-12-10 PT PT83901A patent/PT83901B/pt not_active IP Right Cessation
  • 1986-12-10 CA CA000524999A patent/CA1256610A/en not_active Expired
  • 1986-12-10 BG BG077452A patent/BG45710A3/xx unknown
  • 1986-12-11 CN CN86108509A patent/CN1007573B/zh not_active Expired
  • 1986-12-11 US US06/940,365 patent/US4794644A/en not_active Expired - Lifetime

Also Published As

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