FI90385B - Identifiering av hemliga datasignaler i ett enkelriktat flerpunktsnät - Google Patents

Identifiering av hemliga datasignaler i ett enkelriktat flerpunktsnät Download PDF

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Publication number
FI90385B
FI90385B FI921055A FI921055A FI90385B FI 90385 B FI90385 B FI 90385B FI 921055 A FI921055 A FI 921055A FI 921055 A FI921055 A FI 921055A FI 90385 B FI90385 B FI 90385B
Authority
FI
Finland
Prior art keywords
crc
identification
message
messages
data messages
Prior art date
Application number
FI921055A
Other languages
English (en)
Finnish (fi)
Other versions
FI90385C (sv
FI921055A0 (sv
Inventor
Mauri Kangas
Original Assignee
Salon Televisiotehdas Oy
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 Salon Televisiotehdas Oy filed Critical Salon Televisiotehdas Oy
Priority to FI921055A priority Critical patent/FI90385C/sv
Publication of FI921055A0 publication Critical patent/FI921055A0/sv
Priority to EP93103555A priority patent/EP0564825B1/en
Priority to DE69333913T priority patent/DE69333913T2/de
Priority to NO930839A priority patent/NO307638B1/no
Priority to US08/029,110 priority patent/US5355412A/en
Application granted granted Critical
Publication of FI90385B publication Critical patent/FI90385B/sv
Publication of FI90385C publication Critical patent/FI90385C/sv

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Classifications

    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • 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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
    • 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
    • H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction

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)

Claims (6)

1. Förfarande för identifiering av hemliga datasignaler i ett sändningssystem där man använder ett CRC-tal eller en kontrollsumma i och för felkontroll, kännetecknat av att 5 identifieringen av datameddelanden förverkligas med hjälp av ett identifieringstal som används vid felkontrollen.
2. Förfarande enligt patentkravet 1, kännetecknat av att var och en mottagare utöver den egna identifikationen till- 10 skrivs en individuell CRC-identifikation, vilken utnyttjas i sändaränden i och för CRC-räkning.
3. Förfarande enligt patentkravet 2, kännetecknat av att för det räknade CRC-talet med hjälp av den individuella CRC- 15 identifikationen utförs en sädan funktion som i mottagarän-den kan räknas omvänt och det erhällna talet tillförs i slu-tet av det hemliga datameddelandet och sänds tili mottaga-ren. 20
4. Förfarande enligt patentkravet 3, kännetecknat av att för det i mottagaränden räknade CRC-talet utförs en motsva-rande omvänd funktion med den mottagna CRC-delen, varvid säsom slutresultat erhälls den ifrävarande mottagarens CRC-identifikation dä ifrägavarande meddelande är avsett för 25 ifrägavarande mottagare.
5. Förfarande enligt patentkravet 3 eller 4, kännetecknat av att den för CRC-talet utförda funktionen är en s.k. XOR-funktion. • 30
6. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat av att i stället för CRC-talet utnyttjas en kontrollsumma. li
FI921055A 1992-03-11 1992-03-11 Identifiering av hemliga datasignaler i ett enkelriktat flerpunktsnät FI90385C (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI921055A FI90385C (sv) 1992-03-11 1992-03-11 Identifiering av hemliga datasignaler i ett enkelriktat flerpunktsnät
EP93103555A EP0564825B1 (en) 1992-03-11 1993-03-05 Method for identification of secret data messages in a uni-directional multipoint network using cyclic redundancy checks
DE69333913T DE69333913T2 (de) 1992-03-11 1993-03-05 Verfahren zur Identifizierung von geheimen Datennachrichten in einem unidirektionalen Vielpunktnetzwerk mit Anwendung von zyklischen Redundanzprüfungen
NO930839A NO307638B1 (no) 1992-03-11 1993-03-08 Fremgangsmåte ved identifikasjon av hemmelige datameldinger
US08/029,110 US5355412A (en) 1992-03-11 1993-03-10 Identifying secret data messages in a one-direction multipoint network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI921055A FI90385C (sv) 1992-03-11 1992-03-11 Identifiering av hemliga datasignaler i ett enkelriktat flerpunktsnät
FI921055 1992-03-11

Publications (3)

Publication Number Publication Date
FI921055A0 FI921055A0 (sv) 1992-03-11
FI90385B true FI90385B (sv) 1993-10-15
FI90385C FI90385C (sv) 1994-01-25

Family

ID=8534903

Family Applications (1)

Application Number Title Priority Date Filing Date
FI921055A FI90385C (sv) 1992-03-11 1992-03-11 Identifiering av hemliga datasignaler i ett enkelriktat flerpunktsnät

Country Status (5)

Country Link
US (1) US5355412A (sv)
EP (1) EP0564825B1 (sv)
DE (1) DE69333913T2 (sv)
FI (1) FI90385C (sv)
NO (1) NO307638B1 (sv)

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JP3548215B2 (ja) * 1993-12-22 2004-07-28 キヤノン株式会社 通信方法及びそのシステム
US5442699A (en) * 1994-11-21 1995-08-15 International Business Machines Corporation Searching for patterns in encrypted data
NL9402103A (nl) * 1994-12-12 1996-07-01 Nederland Ptt Werkwijze en inrichtingen voor het in bewerkte vorm over een communicatiekanaal overdragen van data.
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US5875211A (en) * 1995-10-26 1999-02-23 Ericsson Inc. Multisite radio system with false mobile radio signalling detection
US6252961B1 (en) * 1997-07-17 2001-06-26 Hewlett-Packard Co Method and apparatus for performing data encryption and error code correction
US6608861B1 (en) * 1998-10-05 2003-08-19 Motorola, Inc. Data terminal and coding method for increased data packet reliability in a frequency hopping system
FI108183B (sv) * 1999-04-26 2001-11-30 Nokia Networks Oy Nya metod för att kontrollera data
US20020144208A1 (en) * 2001-03-30 2002-10-03 International Business Machines Corporation Systems and methods for enabling computation of CRC' s N-bit at a time
US6915473B2 (en) * 2001-05-14 2005-07-05 Interdigital Technology Corporation Method and system for implicit user equipment identification
NO342216B1 (no) * 2001-05-14 2018-04-16 Intel Corp Fremgangsmåte og system for innbefattet brukerutstyrsidentifikasjon
US20020194571A1 (en) * 2001-06-13 2002-12-19 Michael Parr System and method of coding cyclic redundancy check bits to enhance frequency reuse in a communications network
AU2002365332B2 (en) * 2001-11-30 2006-05-18 Samsung Electronics Co., Ltd. Control information between base and mobile stations
US6871313B2 (en) * 2002-04-05 2005-03-22 Lucent Technologies Inc. Method for encoding a user identifier in a communication system
US20040098651A1 (en) * 2002-11-18 2004-05-20 Rice Colm Marin System and method for generating self-checking data having information content in an error detection field
US8832523B2 (en) * 2006-03-03 2014-09-09 Ternarylogic Llc Multi-state symbol error correction in matrix based codes
US7200405B2 (en) 2003-11-18 2007-04-03 Interdigital Technology Corporation Method and system for providing channel assignment information used to support uplink and downlink channels
KR100664110B1 (ko) * 2004-02-04 2007-01-04 엘지전자 주식회사 이동 통신 단말기의 사용제한 설정 방법
US7590920B2 (en) * 2005-08-05 2009-09-15 Hitachi Global Storage Technologies Netherlands, B.V. Reduced complexity error correction encoding techniques
US7577809B2 (en) * 2005-11-02 2009-08-18 Promethean Storage Llc Content control systems and methods
US7571368B1 (en) * 2006-01-26 2009-08-04 Promethean Storage Llc Digital content protection systems and methods
US9203436B2 (en) * 2006-07-12 2015-12-01 Ternarylogic Llc Error correction in multi-valued (p,k) codes
US7797746B2 (en) 2006-12-12 2010-09-14 Fortinet, Inc. Detection of undesired computer files in archives
US7739227B2 (en) * 2007-03-01 2010-06-15 At&T Intellectual Property I, L.P. Enterprise confidential electronic data inventory systems, methods and computer program products
TWI459749B (zh) * 2010-12-27 2014-11-01 Ind Tech Res Inst 數位資訊編碼方法、解碼方法、資訊傳播裝置及資訊管理裝置
US20140310581A1 (en) * 2011-12-15 2014-10-16 Siemens Aktiengesellschaft Method for forming a crc value and transmitting and receiving apparatus therefor
JP6541004B2 (ja) * 2016-06-08 2019-07-10 本田技研工業株式会社 通信システム

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US4771458A (en) * 1987-03-12 1988-09-13 Zenith Electronics Corporation Secure data packet transmission system and method
US4944006A (en) * 1987-03-12 1990-07-24 Zenith Electronics Corporation Secure data packet transmission system and method
US5048087A (en) * 1989-02-03 1991-09-10 Racal Data Communications Inc. Key management for encrypted packet based networks
US5144659A (en) * 1989-04-19 1992-09-01 Richard P. Jones Computer file protection system
US5177788A (en) * 1991-10-15 1993-01-05 Ungermann-Bass, Inc. Network message security method and apparatus

Also Published As

Publication number Publication date
US5355412A (en) 1994-10-11
FI90385C (sv) 1994-01-25
NO930839D0 (no) 1993-03-08
DE69333913D1 (de) 2005-12-29
DE69333913T2 (de) 2006-08-10
NO930839L (no) 1993-09-13
EP0564825B1 (en) 2005-11-23
EP0564825A2 (en) 1993-10-13
EP0564825A3 (en) 1995-05-03
NO307638B1 (no) 2000-05-02
FI921055A0 (sv) 1992-03-11

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