GB2417173B - Encryption in communications systems - Google Patents

Encryption in communications systems

Info

Publication number
GB2417173B
GB2417173B GB0516646A GB0516646A GB2417173B GB 2417173 B GB2417173 B GB 2417173B GB 0516646 A GB0516646 A GB 0516646A GB 0516646 A GB0516646 A GB 0516646A GB 2417173 B GB2417173 B GB 2417173B
Authority
GB
United Kingdom
Prior art keywords
encryption
communications systems
communications
systems
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.)
Expired - Fee Related
Application number
GB0516646A
Other versions
GB2417173A (en
GB0516646D0 (en
Inventor
Mark Wentworth Rayne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sepura Ltd
Original Assignee
Sepura Ltd
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 Sepura Ltd filed Critical Sepura Ltd
Publication of GB0516646D0 publication Critical patent/GB0516646D0/en
Publication of GB2417173A publication Critical patent/GB2417173A/en
Application granted granted Critical
Publication of GB2417173B publication Critical patent/GB2417173B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04L9/08—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
    • H04L9/0897—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage involving additional devices, e.g. trusted platform module [TPM], smartcard or USB
    • 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
    • H04L9/0802—
    • 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)
    • H04L9/0822—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) using key encryption key
    • 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
    • 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
    • H04Q7/3881—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • 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
    • H04L63/065—Network architectures or network communication protocols for network security for supporting key management in a packet data network for group communications

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
GB0516646A 2004-08-12 2005-08-12 Encryption in communications systems Expired - Fee Related GB2417173B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0418024.6A GB0418024D0 (en) 2004-08-12 2004-08-12 Encryption in communication systems

Publications (3)

Publication Number Publication Date
GB0516646D0 GB0516646D0 (en) 2005-09-21
GB2417173A GB2417173A (en) 2006-02-15
GB2417173B true GB2417173B (en) 2007-05-23

Family

ID=33017417

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0418024.6A Ceased GB0418024D0 (en) 2004-08-12 2004-08-12 Encryption in communication systems
GB0516646A Expired - Fee Related GB2417173B (en) 2004-08-12 2005-08-12 Encryption in communications systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0418024.6A Ceased GB0418024D0 (en) 2004-08-12 2004-08-12 Encryption in communication systems

Country Status (3)

Country Link
EP (1) EP1779585A1 (en)
GB (2) GB0418024D0 (en)
WO (1) WO2006016181A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602006004699D1 (en) * 2006-04-04 2009-02-26 Research In Motion Ltd Method and apparatus for updating the cryptographic keys in a mobile communication device
US8422680B2 (en) * 2008-02-13 2013-04-16 Motorola Solutions, Inc. Method for validating encrypted communications via selection and comparison of source transmitter and destination receiver associated encryption keys

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6160890A (en) * 1996-10-31 2000-12-12 Matsushita Electric Industrial Co., Ltd. Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded
SE515224C2 (en) * 1999-06-18 2001-07-02 Sectra Comm Ab Mobile or cordless phone with device for encrypting or decrypting speech and data, can store and transmit encryption keys via short range link
GB2388282A (en) * 2002-05-03 2003-11-05 Motorola Inc Secure communication between mobile terminals using private public key pairs stored on contactless smartcards
US20030236983A1 (en) * 2002-06-21 2003-12-25 Mihm Thomas J. Secure data transfer in mobile terminals and methods therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832086A (en) * 1995-09-27 1998-11-03 Motorola, Inc. Method for updating a communication unit parameter in a wireless communication system
CA2387097C (en) * 1999-10-22 2008-05-20 Motorola, Inc. Communication protocol for secure communications systems
US7123719B2 (en) * 2001-02-16 2006-10-17 Motorola, Inc. Method and apparatus for providing authentication in a communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6160890A (en) * 1996-10-31 2000-12-12 Matsushita Electric Industrial Co., Ltd. Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded
SE515224C2 (en) * 1999-06-18 2001-07-02 Sectra Comm Ab Mobile or cordless phone with device for encrypting or decrypting speech and data, can store and transmit encryption keys via short range link
GB2388282A (en) * 2002-05-03 2003-11-05 Motorola Inc Secure communication between mobile terminals using private public key pairs stored on contactless smartcards
US20030236983A1 (en) * 2002-06-21 2003-12-25 Mihm Thomas J. Secure data transfer in mobile terminals and methods therefor

Also Published As

Publication number Publication date
EP1779585A1 (en) 2007-05-02
GB0418024D0 (en) 2004-09-15
GB2417173A (en) 2006-02-15
GB0516646D0 (en) 2005-09-21
WO2006016181A1 (en) 2006-02-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100812