DE4444089A1 - Transceiver terminal for communication system - Google Patents

Transceiver terminal for communication system

Info

Publication number
DE4444089A1
DE4444089A1 DE4444089A DE4444089A DE4444089A1 DE 4444089 A1 DE4444089 A1 DE 4444089A1 DE 4444089 A DE4444089 A DE 4444089A DE 4444089 A DE4444089 A DE 4444089A DE 4444089 A1 DE4444089 A1 DE 4444089A1
Authority
DE
Germany
Prior art keywords
terminal
information
unencrypted
encrypted
exchange
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
DE4444089A
Other languages
German (de)
Other versions
DE4444089C2 (en
Inventor
Klaus Dipl Ing Dr Rieskamp
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.)
Rohde and Schwarz GmbH and Co KG
Original Assignee
Rohde and Schwarz GmbH and Co KG
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 Rohde and Schwarz GmbH and Co KG filed Critical Rohde and Schwarz GmbH and Co KG
Priority to DE4444089A priority Critical patent/DE4444089C2/en
Publication of DE4444089A1 publication Critical patent/DE4444089A1/en
Application granted granted Critical
Publication of DE4444089C2 publication Critical patent/DE4444089C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • 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
    • 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
    • H04L9/3226—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 a predetermined code, e.g. password, passphrase or PIN
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Abstract

The transmitter-receiving system for use in communication applications, such as a mobile network, provides information exchange that can be selectively scrambled or not scrambled. The user of a terminal is made aware of the coding status using acoustic and/or optical indication. The information may be in the form of speech signals onto which an identification signal is superimposed, informing the user whether or not the reception should be understandable.

Description

Die Erfindung betrifft ein Sende-Empfangs-Endgerät für ein Kommunikationssystem laut Oberbegriff des Hauptanspruches.The invention relates to a transceiver terminal for a Communication system according to the preamble of the main claim.

Bei modernen Kommunikationssystemen, beispielsweise beim digitalen Mobilfunknetz (z. B. D-Netz) kann der Informations­ austausch (Sprache oder andere Daten) zwischen den meist mobilen Endgeräten und den stationären Basisstationen auf sehr effektive Weise verschlüsselt erfolgen, was für viele Benutzer solcher Systeme sehr wichtig ist, da dann ein unberechtigtes Abhören des Informationsaustausches ausge­ schlossen ist. Diese Möglichkeit zur Verschlüsselung ist für das GSM-Netz beispielsweise in der Normvorschrift GSM, Technical Specifications (TS GSM 02.09 und TS GSM 12.03) näher beschrieben. Bereits beim Verbindungsaufbau wird über die Basisstation festgelegt, ob und in welcher Weise die Verschlüsselung durchgeführt werden soll, dazu wird im Endgerät eine dort vorgesehene Schlüsseleinrichtung, mit welcher die empfangenen Informationen entschlüsselt und die auszusendenden Informationen verschlüsselt werden, entsprechend aktiviert. Da verschiedene Netzbetreiber eines solchen umfassenden Kommunikationssystems keine solche Verschlüsselungsmöglichkeiten haben und manche Endgeräte eines solchen Systems oftmals nicht für eine Verschlüsselung eingerichtet sind, also keine entsprechenden Schlüsselein­ richtungen aufweisen, erfolgt der Informationsaustausch in solchen Systemen wahlweise verschlüsselt oder unver­ schlüsselt, was für den Benutzer eines Endgerätes aber nicht erkennbar ist, so daß er seinen Informationsaustausch nicht darauf einrichten kann.In modern communication systems, for example digital cellular network (e.g. D network) can be the information exchange (voice or other data) between the most mobile devices and the stationary base stations very encrypted way done, what for many User of such systems is very important since then unauthorized eavesdropping on the exchange of information is closed. This way of encryption is for the GSM network, for example in the standard GSM, Technical Specifications (TS GSM 02.09 and TS GSM 12.03) described in more detail. Already when establishing the connection is over the base station determines whether and how the Encryption should be carried out, this is done in A key device provided there, with which decrypts the received information and the information to be sent is encrypted, activated accordingly. Since different network operators have one such a comprehensive communication system Have encryption options and some end devices of such a system often not for encryption  are set up, i.e. there are no corresponding keys directions, the information is exchanged either encrypted or unencrypted in such systems codes what is not for the user of a device is recognizable so that it does not exchange information can set up on it.

Es ist daher Aufgabe der Erfindung, für das Sende-Emp­ fangs-Endgerät solcher Kommunikationssysteme eine Einrichtung zu schaffen, die diese Nachteile vermeidet und es dem Benutzer ermöglicht, seinen Informationsaustausch darauf einzustellen, ob dieser nun gerade verschlüsselt oder unverschlüsselt erfolgt.It is therefore an object of the invention for the send emp a terminal device of such communication systems to create that avoids these disadvantages and that Allows users to share information on it to set whether it is currently encrypted or unencrypted.

Diese Aufgabe wird ausgehend von einem Sende-Empfangs-End­ gerät laut Oberbegriff des Hauptanspruches durch dessen kennzeichnende Merkmale gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.This task is based on a send-receive end gets according to the preamble of the main claim by its characteristic features solved. Advantageous further training result from the subclaims.

Gemäß der Erfindung kann der Benutzer des Endgeräts sofort über die akustische und/oder optische Anzeigeeinrichtung erkennen, ob im Moment der Informationsaustausch verschlüs­ selt oder unverschlüsselt erfolgt, er kann somit jederzeit seinen Informationsaustausch darauf einrichten. Die Erfindung ist dabei insbesondere für Mobilfunknetze geeignet, in welchen Sprache oder Digitalsignale für Fernkopiergeräte und dergleichen wahlweise verschlüsselt oder unverschlüsselt übertragen werden, es genügt in diesem Fall, am Handgerät (Handy) eine kleine Anzeigeleuchte, beispielsweise eine Leuchtdiode, vorzusehen, die beispielsweise nur bei der verschlüsselten Übertragung leuchtet und damit dem Benutzer anzeigt, daß er ungestört und unabhörbar sprechen kann. Eine andere Möglichkeit besteht darin, bei wirksamer Ver­ schlüsselung dem Gespräch ein Tonsignal zu überlagern, das dem Benutzer anzeigt, daß wirksam verschlüsselt wird. Beim Informationsaustausch von Digitalsignalen beispielsweise für Fernkopiergeräte wird im Endgerät ein entsprechendes zusätzliches Kennsignal überlagert und mit ausgedruckt, so daß auch in diesem Fall der Benutzer erkennen kann, ob eine Übertragung verschlüsselt oder unverschlüsselt erfolgt. Für Länder, die eine derartige Anzeige untersagen, ist eine zusätzlich Einrichtung zum Ausschalten dieser zusätzlichen Erkennungseinrichtung vorgesehen.According to the invention, the user of the terminal can immediately via the acoustic and / or optical display device recognize whether the exchange of information is currently selt or unencrypted, it can therefore at any time set up his information exchange on it. The invention is particularly suitable for cellular networks in what language or digital signals for facsimile machines and the like optionally encrypted or unencrypted transferred, in this case it is sufficient to use the handheld device (Cell phone) a small indicator light, for example one Light-emitting diode to provide, for example, only in the encrypted transmission lights up and thus the user indicates that he can speak undisturbed and inaudibly. Another option is to use effective ver  to overlay the conversation with a sound signal that indicates to the user that encryption is effective. At the Exchange of information from digital signals, for example for remote copying machines there is a corresponding one in the terminal additional identification signal superimposed and printed out, so that even in this case the user can see whether transmission is encrypted or unencrypted. For countries that prohibit such notification, one is additional facility to turn off these additional Detection device provided.

Claims (3)

1. Sende-Empfangs-Endgerät für ein Kommunikationssystem, in welchem der Informationsaustausch zwischen den End­ geräten und den Basisstationen wahlweise verschlüsselt oder unverschlüsselt möglich ist und dazu im Endgerät eine Schlüsseleinrichtung zum Entschlüsseln der emp­ fangenen und zum Verschlüsseln der auszusendenden Infor­ mationen vorgesehen ist, dadurch gekenn­ zeichnet, daß der Schlüsseleinrichtung eine zusätzliche Erkennungseinrichtung zugeordnet ist, die erkennt, ob ein Informationsaustausch verschlüsselt oder unverschlüsselt erfolgt, und durch diese Erkennungsein­ richtung eine am Endgerät vorgesehene akustische und/oder optische Anzeigeeinrichtung steuerbar ist.1. Transceiver terminal for a communication system in which the exchange of information between the end devices and the base stations is optionally encrypted or unencrypted and for this purpose a key device for decrypting the received and encrypting the information to be sent is provided in the terminal, thereby characterized in that the key device is assigned an additional recognition device that detects whether an information exchange is encrypted or unencrypted, and by this recognition device provided on the terminal acoustic and / or optical display device is controllable. 2. Endgerät nach Anspruch 1, dadurch gekenn­ zeichnet, daß an ihm eine durch die Erken­ nungseinrichtung gesteuerte Anzeigeleuchte vorgesehen ist.2. Terminal according to claim 1, characterized shows that one of them by the oriels Control device controlled indicator light provided is. 3. Endgerät nach Anspruch 1 oder 2 für ein Mobilfunknetz, dadurch gekennzeichnet, daß in ihm eine durch die Erkennungseinrichtung gesteuerte Einrich­ tung zum Erzeugen eines dem Sprachsignal überlagerbaren Tonsignals vorgesehen ist.3. Terminal according to claim 1 or 2 for a mobile radio network, characterized in that in it a device controlled by the detection device device for generating a superimposed on the speech signal Tone signal is provided.
DE4444089A 1994-12-10 1994-12-10 Transceiver terminal for a communication system Expired - Lifetime DE4444089C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4444089A DE4444089C2 (en) 1994-12-10 1994-12-10 Transceiver terminal for a communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4444089A DE4444089C2 (en) 1994-12-10 1994-12-10 Transceiver terminal for a communication system

Publications (2)

Publication Number Publication Date
DE4444089A1 true DE4444089A1 (en) 1996-06-13
DE4444089C2 DE4444089C2 (en) 1998-09-17

Family

ID=6535510

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4444089A Expired - Lifetime DE4444089C2 (en) 1994-12-10 1994-12-10 Transceiver terminal for a communication system

Country Status (1)

Country Link
DE (1) DE4444089C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748681A1 (en) * 1997-11-04 1999-05-12 Innotech Gmbh Network for the transmission of data with mobile data transmission devices
DE102015212037A1 (en) * 2015-06-29 2016-12-29 Siemens Aktiengesellschaft Monitoring a link section for transmission of data between two subscribers of a communication link

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926013A1 (en) * 1979-06-27 1981-01-08 Siemens Ag METHOD FOR OUTPUTING A MESSAGE TEXT TO A RECEIVED PERSON
US4440976A (en) * 1981-06-17 1984-04-03 Motorola, Inc. Automatic selection of decryption key for multiple-key encryption systems
DE3431726A1 (en) * 1984-08-29 1986-03-13 Philips Kommunikations Industrie AG, 8500 Nürnberg Telecommunications network, in particular mobile radio network, with network-uniformly changeable keys
EP0112844B1 (en) * 1982-07-12 1986-08-27 Western Electric Company, Incorporated Method and apparatus for encrypted radio communications
US4882751A (en) * 1986-10-31 1989-11-21 Motorola, Inc. Secure trunked communications system
US4941174A (en) * 1988-04-19 1990-07-10 General Electric Company Digital radio with security system for selectively enabling software controlled options
DE4030993A1 (en) * 1989-10-05 1991-04-18 Racal Guardall Scotland SECURITY SIGNALING SYSTEM
EP0482233A1 (en) * 1990-10-24 1992-04-29 Omnisec Ag Cryptographic system allowing encrypted communication between users with a secure mutual cipher key determined without user interaction
DE4135061A1 (en) * 1990-10-31 1992-05-07 Rose Communications Inc METHOD AND DEVICE FOR PROTECTING TALKING DATA FROM DIGITAL TALKING RADIO SYSTEMS

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926013A1 (en) * 1979-06-27 1981-01-08 Siemens Ag METHOD FOR OUTPUTING A MESSAGE TEXT TO A RECEIVED PERSON
US4440976A (en) * 1981-06-17 1984-04-03 Motorola, Inc. Automatic selection of decryption key for multiple-key encryption systems
EP0112844B1 (en) * 1982-07-12 1986-08-27 Western Electric Company, Incorporated Method and apparatus for encrypted radio communications
DE3431726A1 (en) * 1984-08-29 1986-03-13 Philips Kommunikations Industrie AG, 8500 Nürnberg Telecommunications network, in particular mobile radio network, with network-uniformly changeable keys
US4882751A (en) * 1986-10-31 1989-11-21 Motorola, Inc. Secure trunked communications system
US4941174A (en) * 1988-04-19 1990-07-10 General Electric Company Digital radio with security system for selectively enabling software controlled options
DE4030993A1 (en) * 1989-10-05 1991-04-18 Racal Guardall Scotland SECURITY SIGNALING SYSTEM
EP0482233A1 (en) * 1990-10-24 1992-04-29 Omnisec Ag Cryptographic system allowing encrypted communication between users with a secure mutual cipher key determined without user interaction
DE4135061A1 (en) * 1990-10-31 1992-05-07 Rose Communications Inc METHOD AND DEVICE FOR PROTECTING TALKING DATA FROM DIGITAL TALKING RADIO SYSTEMS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KIRCHHOFER,K.H.: Abhörsicherer Draht- und Funksprechverkehr. In: Internationale Wehrrevue, 5/1976, H.5, S.761-767 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748681A1 (en) * 1997-11-04 1999-05-12 Innotech Gmbh Network for the transmission of data with mobile data transmission devices
DE102015212037A1 (en) * 2015-06-29 2016-12-29 Siemens Aktiengesellschaft Monitoring a link section for transmission of data between two subscribers of a communication link

Also Published As

Publication number Publication date
DE4444089C2 (en) 1998-09-17

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
D2 Grant after examination
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
R071 Expiry of right