ATE363165T1 - Anrufverschlüsselung in einem tetra netz - Google Patents

Anrufverschlüsselung in einem tetra netz

Info

Publication number
ATE363165T1
ATE363165T1 AT05251869T AT05251869T ATE363165T1 AT E363165 T1 ATE363165 T1 AT E363165T1 AT 05251869 T AT05251869 T AT 05251869T AT 05251869 T AT05251869 T AT 05251869T AT E363165 T1 ATE363165 T1 AT E363165T1
Authority
AT
Austria
Prior art keywords
encryption
synchronisation
priority
time
function
Prior art date
Application number
AT05251869T
Other languages
English (en)
Inventor
Kristian Gronkjaer Pedersen
Scott J Pappas
Timothy M Langham
Original Assignee
Motorola 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
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ATE363165T1 publication Critical patent/ATE363165T1/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
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
  • Photovoltaic Devices (AREA)
AT05251869T 2004-03-24 2005-03-24 Anrufverschlüsselung in einem tetra netz ATE363165T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55590604P 2004-03-24 2004-03-24

Publications (1)

Publication Number Publication Date
ATE363165T1 true ATE363165T1 (de) 2007-06-15

Family

ID=34886339

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05251869T ATE363165T1 (de) 2004-03-24 2005-03-24 Anrufverschlüsselung in einem tetra netz

Country Status (4)

Country Link
EP (1) EP1583380B1 (de)
CN (1) CN100525498C (de)
AT (1) ATE363165T1 (de)
DE (1) DE602005001167T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2439613B (en) * 2006-06-30 2008-08-27 Motorola Inc Processor, method and terminal for use in communications
CN102006593A (zh) * 2010-10-29 2011-04-06 公安部第一研究所 一种用于低速窄带无线数字通信的端到端语音加密方法
US9722808B2 (en) * 2014-01-22 2017-08-01 Ricoh Company, Limited Data transmission system, a terminal device, and a recording medium

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20002608A (fi) * 2000-11-28 2002-05-29 Nokia Corp Päästä-päähän -tahdistksen ylläpitäminen tietoliikeneyhteydellä
US7095856B2 (en) * 2002-03-29 2006-08-22 Motorola, Inc. Method and apparatus to maintain encryption synchronization in a multi-modulation TDM system

Also Published As

Publication number Publication date
CN1794863A (zh) 2006-06-28
DE602005001167T2 (de) 2008-01-24
EP1583380B1 (de) 2007-05-23
CN100525498C (zh) 2009-08-05
EP1583380A2 (de) 2005-10-05
DE602005001167D1 (de) 2007-07-05
EP1583380A3 (de) 2006-02-08

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties