EP0204226A3 - Method for realising an encrypted radio communication - Google Patents

Method for realising an encrypted radio communication Download PDF

Info

Publication number
EP0204226A3
EP0204226A3 EP86106999A EP86106999A EP0204226A3 EP 0204226 A3 EP0204226 A3 EP 0204226A3 EP 86106999 A EP86106999 A EP 86106999A EP 86106999 A EP86106999 A EP 86106999A EP 0204226 A3 EP0204226 A3 EP 0204226A3
Authority
EP
European Patent Office
Prior art keywords
information
procedure
transmit
stations
radio communication
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.)
Granted
Application number
EP86106999A
Other languages
German (de)
Other versions
EP0204226B1 (en
EP0204226A2 (en
Inventor
Bodo Dipl.-Math. Rittenauer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT86106999T priority Critical patent/ATE55523T1/en
Publication of EP0204226A2 publication Critical patent/EP0204226A2/en
Publication of EP0204226A3 publication Critical patent/EP0204226A3/en
Application granted granted Critical
Publication of EP0204226B1 publication Critical patent/EP0204226B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Road Signs Or Road Markings (AREA)
  • Alarm Systems (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Transmitters (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)

Abstract

1. Method for carrying out an encrypted radio communication between transmit-receive stations, in particular mobile transmit-receive stations, in which method at the start of at least certain transmission procedures a time-dependent item of synchronization and identification information is transmitted between at least two stations from the transmit side to the receive side, characterized in that an item of information (procedure identification) relating to a cipher and exclusively marking the respective transmission procedure is derived from the received identification information and is then immediately compared, with reference to the same cipher, to procedure identifications, retained in a circulating store (SF4, PU), of such previous correct transmission procedures, in that, furthermore, as a function of the result of such a comparison, the information containing this transmission procedure is either rejected as false information or evaluated as genuine information.
EP86106999A 1985-06-04 1986-05-23 Method for realising an encrypted radio communication Expired - Lifetime EP0204226B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86106999T ATE55523T1 (en) 1985-06-04 1986-05-23 PROCEDURE FOR CARRYING OUT AN ENCRYPTED RADIO COMMUNICATION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3519902 1985-06-04
DE3519902 1985-06-04

Publications (3)

Publication Number Publication Date
EP0204226A2 EP0204226A2 (en) 1986-12-10
EP0204226A3 true EP0204226A3 (en) 1988-12-28
EP0204226B1 EP0204226B1 (en) 1990-08-08

Family

ID=6272342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106999A Expired - Lifetime EP0204226B1 (en) 1985-06-04 1986-05-23 Method for realising an encrypted radio communication

Country Status (5)

Country Link
EP (1) EP0204226B1 (en)
AT (1) ATE55523T1 (en)
DE (1) DE3673241D1 (en)
TR (1) TR23092A (en)
ZA (1) ZA864121B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4339464C2 (en) * 1993-11-19 1995-11-16 Litef Gmbh Method for disguising and unveiling speech during voice transmission and device for carrying out the method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2517073C1 (en) * 1975-04-18 1978-02-09 Siemens Ag Transmission system working with two-way traffic
DE3518462A1 (en) * 1985-05-23 1986-11-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart ENCRYPTED MESSAGE TRANSMISSION SYSTEM

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2517073C1 (en) * 1975-04-18 1978-02-09 Siemens Ag Transmission system working with two-way traffic
DE3518462A1 (en) * 1985-05-23 1986-11-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart ENCRYPTED MESSAGE TRANSMISSION SYSTEM

Also Published As

Publication number Publication date
DE3673241D1 (en) 1990-09-13
EP0204226B1 (en) 1990-08-08
TR23092A (en) 1989-03-13
ZA864121B (en) 1987-01-28
EP0204226A2 (en) 1986-12-10
ATE55523T1 (en) 1990-08-15

Similar Documents

Publication Publication Date Title
MX9704066A (en) Method for providing autonomous radio talk group configuration.
CA2044562A1 (en) Interference source identification
TW431075B (en) Spread-spectrum telephony with accelerated code acquisition
GB2235112B (en) Communication system,transmitter and receiver for use in a communication system,and method for recovering data in a communication system.
GB2020513A (en) Improved method and apparatus for securing data transmissions
JPS56136058A (en) Method and device for transmitting secret data between transmitter and receiver
EP0392723A3 (en) Data communications apparatus and method
AU578682B2 (en) A radio system
CA2219256A1 (en) Improving security of packet-mode transmission in a mobile communication system
EP0744876A3 (en) A method of signal transmission in a mobile communication system
SE9001729D0 (en) PROCEDURE FOR STORING LIFE DATA OF COMPLIED PRODUCTS
ATE206258T1 (en) METHOD AND SYSTEM FOR COLLECTING STATION-RELATED LISTENER-RELATED DATA
TW331682B (en) A wireless telecommunication system
TW370748B (en) Method of, and system for, transmitting messages
FR2561841B1 (en) METHOD FOR RECOGNIZING THE UNLAWFUL USE OF AN IDENTIFICATION
EP0400441A3 (en) Testing method for terminal communicating with ic-cards
WO1999014969A8 (en) Method for registering telecommunication sets in base stations which can be linked to said sets in wireless telecommunication systems, and more precisely for registering dect mobile units in the dect base stations of dect systems
EP0204226A3 (en) Method for realising an encrypted radio communication
ES2040786T3 (en) DATA TRANSMISSION PROCEDURE.
KR960008959B1 (en) Global communication system, receiver and method for operating the same
BR9405522A (en) Process for establishing and maintaining communication in a portable radio communication system, process for assigning security codes to a portable radio communication system, process for maintaining communication with a remote device in a radio communication system and process for maintaining communication in a communication system portable radio.
SE8604446D0 (en) PROCEDURE FOR TRANSFERING INFORMATION IN A PERSONAL SYSTEM
JPS647827A (en) Radio transmission base station
EP0148015A3 (en) A method for cryptographic transmission of speech signals and a communication station for performing the method
ES2143203T3 (en) PROCEDURE FOR CONTROLLING THE ACCESS OF A DATA STATION TO MOBILE DATA SUPPORTS.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19890627

17Q First examination report despatched

Effective date: 19891010

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 55523

Country of ref document: AT

Date of ref document: 19900815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3673241

Country of ref document: DE

Date of ref document: 19900913

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910523

Ref country code: AT

Effective date: 19910523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910524

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19910531

Ref country code: CH

Effective date: 19910531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19911201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930720

Year of fee payment: 8

EUG Se: european patent has lapsed

Ref document number: 86106999.5

Effective date: 19911209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050523