IL122520A - Decryption of retransmitted data in an encrypted communication system - Google Patents

Decryption of retransmitted data in an encrypted communication system

Info

Publication number
IL122520A
IL122520A IL12252097A IL12252097A IL122520A IL 122520 A IL122520 A IL 122520A IL 12252097 A IL12252097 A IL 12252097A IL 12252097 A IL12252097 A IL 12252097A IL 122520 A IL122520 A IL 122520A
Authority
IL
Israel
Prior art keywords
decryption
communication system
encrypted communication
retransmitted data
retransmitted
Prior art date
Application number
IL12252097A
Other languages
English (en)
Other versions
IL122520A0 (en
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
Publication of IL122520A0 publication Critical patent/IL122520A0/xx
Publication of IL122520A publication Critical patent/IL122520A/xx

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
    • H04L9/06—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
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0637—Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1809—Selective-repeat protocols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Communication Control (AREA)
IL12252097A 1996-05-17 1997-04-23 Decryption of retransmitted data in an encrypted communication system IL122520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/650,071 US5694473A (en) 1996-05-17 1996-05-17 Decryption of retransmitted data in an encrypted communication system

Publications (2)

Publication Number Publication Date
IL122520A0 IL122520A0 (en) 1998-06-15
IL122520A true IL122520A (en) 2000-10-31

Family

ID=24607327

Family Applications (1)

Application Number Title Priority Date Filing Date
IL12252097A IL122520A (en) 1996-05-17 1997-04-23 Decryption of retransmitted data in an encrypted communication system

Country Status (11)

Country Link
US (1) US5694473A (fr)
EP (1) EP0840966B1 (fr)
JP (1) JPH11509718A (fr)
AU (1) AU2924997A (fr)
BR (1) BR9702259A (fr)
CA (1) CA2226831C (fr)
DE (1) DE69724907T2 (fr)
IL (1) IL122520A (fr)
PL (1) PL324465A1 (fr)
RU (1) RU2147793C1 (fr)
WO (1) WO1997044933A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5931915A (en) 1997-05-13 1999-08-03 International Business Machines Corporation Method for processing early arrival messages within a multinode asynchronous data communications system
US6266412B1 (en) * 1998-06-15 2001-07-24 Lucent Technologies Inc. Encrypting speech coder
FI109252B (fi) 1999-04-13 2002-06-14 Nokia Corp Tietoliikennejärjestelmän uudelleenlähetysmenetelmä, jossa on pehmeä yhdistäminen
JP3536909B2 (ja) * 1999-12-24 2004-06-14 日本電気株式会社 交換装置とスクランブル方法
US20010054112A1 (en) * 2000-01-26 2001-12-20 Lida Nobakht Channel-based internet network for a satellite system
US7111051B2 (en) * 2000-01-26 2006-09-19 Viaclix, Inc. Smart card for accessing a target internet site
US7095856B2 (en) * 2002-03-29 2006-08-22 Motorola, Inc. Method and apparatus to maintain encryption synchronization in a multi-modulation TDM system
US20040081320A1 (en) * 2002-10-24 2004-04-29 Jordan Royce D. Password synchronization for wireless encryption system
GB2402025B (en) * 2003-05-19 2006-01-18 Motorola, Inc Processor,method,transmitter and terminal for use in communications
GB2402024B (en) * 2003-05-19 2005-07-13 Motorola Inc Processor,method,transmitter and terminal for use in communications
GB2439613B (en) * 2006-06-30 2008-08-27 Motorola Inc Processor, method and terminal for use in communications
US8494451B2 (en) * 2009-01-30 2013-07-23 Nokia Corporation Method, apparatus and computer program product for providing ciphering problem recovery for unacknowledged mode radio bearer
US9124425B2 (en) 2009-06-30 2015-09-01 Nokia Technologies Oy Systems, methods, and apparatuses for ciphering error detection and recovery

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654480A (en) * 1985-11-26 1987-03-31 Weiss Jeffrey A Method and apparatus for synchronizing encrypting and decrypting systems
JPH0362630A (ja) * 1989-07-31 1991-03-18 Nec Eng Ltd 衛星通信方式
NZ237080A (en) * 1990-03-07 1993-05-26 Ericsson Telefon Ab L M Continuous synchronisation for duplex encrypted digital cellular telephony
JP2503798B2 (ja) * 1991-03-20 1996-06-05 富士ゼロックス株式会社 暗号化ファクシミリ装置
US5243653A (en) * 1992-05-22 1993-09-07 Motorola, Inc. Method and apparatus for maintaining continuous synchronous encryption and decryption in a wireless communication system throughout a hand-off

Also Published As

Publication number Publication date
PL324465A1 (en) 1998-05-25
IL122520A0 (en) 1998-06-15
EP0840966A1 (fr) 1998-05-13
CA2226831A1 (fr) 1997-11-27
EP0840966A4 (fr) 2000-03-29
US5694473A (en) 1997-12-02
BR9702259A (pt) 1999-02-17
EP0840966B1 (fr) 2003-09-17
DE69724907T2 (de) 2004-05-19
CA2226831C (fr) 2001-08-28
WO1997044933A1 (fr) 1997-11-27
RU2147793C1 (ru) 2000-04-20
DE69724907D1 (de) 2003-10-23
AU2924997A (en) 1997-12-09
JPH11509718A (ja) 1999-08-24

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Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees