DE4416598A1 - Securing telecommunication connection against unauthorised use - Google Patents

Abstract

The method secures telecommunication connections against unauthorised use of devices and services by identification of the user. A code text is agreed with an authorised user. At the receiver, the code text is compared using a voice recognition module, with the agreed code text. Only when these agree, is a further connection made with the desired device or the service to be secured.The apparatus protects against unauthorised connection to devices which are connected to or in a telecommunication network. A connection blocking circuit is provided with a voice recognition circuit and a compare text memory. Only when the spoken code agrees with that stored does the circuit allow further connection.

Description

The invention relates to a method in the upper Concept of claim 1 described in more detail and on a device in the preamble of claim 3 designated type. Such methods and devices and the related security and data protection Problems are in a variety of publications been treated.

With a variety of services (hereinafter briefly referred to as services) is access to central systems men and facilities via the telecommunications network agile or desirable. Here comes the finding of Authorization and identification of the system accessing users have a special meaning because of this irrelevant way legal transactions of significant value are processed or data protection aspects are relevant.

Examples are:

• - account queries,
• - arranging balance movements,
• - access to closed-circuit telecommunications networks (GBG),
• - Access to certain accounting groups during use telecommunications services (booking card),
• - access to databases,
• - Access to language banks, mailbox systems u. a.,
• - closed-circuit TV (pay TV),
• - Access to operator services etc.

Even with the known terminal equipment on telecommunications onsnetz (such as telephones, fax machines, answering machines with remote inquiry or remote setting function, mobile radio  authorization devices tion of the operator usually via the controls of the Device or from a distance via an existing device Connection over the telecommunications network. The latter poss Most of the time, it becomes remote inquiry and organization received messages as well as the best to change settings up to activation / deactivation of the device.

Here are certain functions by a PIN or a Numerical code secured, which is evaluated in the device. A Known possibility is a DTMF signal, which is a number represents code in the central facility or is decoded and evaluated in the system. After positive Identification is an access to the service or the functions and the stored information (after and device settings) possible.

Examples are:

• - set locks,
• - identifiers for fax machines,
• - Announcements for answering machines and
• - Basic device settings.

By naturally limiting the number code to one finite number of digits (usually a three-digit number Number code) is also the possibility of combinations at last. With a sufficient number of Always try the risk of unauthorized access Third. This was followed several times by data protection officers grasslands.

In some use cases, too Code text used in the form of a password, however queried by people (query power, operator) and is evaluated.  

When using a password issued by humans is always negligent or willful failure. Beyond that a speaker-dependent password evaluation is not possible.

The object of the invention is to provide such telecommunications Connections more effective against unauthorized use and to protect interfering interventions.

This task is done with a procedure accordingly solved the characterizing part of claim 1.

A further training possibility of this procedure is in Characteristic of claim 2 described.

A suitable device for realizing the invention is defined in the characterizing part of patent claim 3.

The principle of the invention is an application of Speech recognition modules for such security applications. It is below the agreed code text, depending on the level of security achieved, any simple Codeword or a more or less extensive and understand complex code text.

The invention is based on execution and Application examples explained in more detail.

With central systems and facilities or with Telekom communication terminal equipment (telephones, fax machines, Answering machines etc.) are the access ports or Remote inquiry or remote control function of the answering machine or telecommunications terminal equipment with integrated Answering machine function with voice recognition as standard equipped.  

The user is identified by speaking any code text from the speech recognition module is evaluated.

Depending on the requirement profile and security needs of the The operator of the system can use the spoken code word (or the code text)

• - speaker independent or
• - dependent on speaker

be designed.

If access is restricted to one certain group of people and at the same time high Security requirement can also be a speaker dependent Identification of the code word (or code text) with Reference to several previously spoken personal code words (or code texts) be made.

By identifying the access authorization via A code text is used when using number codes existing possibility taken by a sufficient Number of access attempts from the finite number of Combinations to find the right combination.

Through the speaker-dependent identification of the inserted identification code additionally increased.

Human error in the identification procedure will also excluded.

Claims (3)

1. A method of securing telecommunications connections against unauthorized use of facilities and services by means of identification of the user, in which a code text is agreed with authorized users, characterized in that the code text is compared with the agreed code text at the receiving end using a speech recognition module before the further connection to the requested device or the service to be secured is established only if there is a match. 2. The method according to claim 1, characterized in that to further limit access certain people next to the text comparison one speaker-dependent identification is carried out. 3. Device for securing telecommunications connection against unauthorized use in facilities that connectable to a telecommunications network or in these can be switched on, characterized records that a connection blocking circuit with a speech recognition module and comparison text memory cher is provided, which only if the awarded code text the further connection releases.