Local Node Masking Authentication Signals in ISDN
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Solution Overview
Problem
Existing voice recognition authentication systems for telephone transactions require significant integration efforts and interface adaptations, especially when retrofitting systems from different manufacturers, and are vulnerable to wiretapping and fraud due to the need for additional interfaces and complex signal transmission.
Innovation Solution
A method utilizing a local node in the telecommunication network to mask authentication signals, allowing voice samples to be compared with stored records without additional interfaces, ensuring secure access to information by mixing receive and send time slots in ISDN networks and using DTMF sequences for result communication, thereby preventing unauthorized access and wiretapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voice recognition authentication systems are integrated into existing telephone networks, then user identification capability is improved, but system complexity and integration effort increase significantly
Solution Approach 1:
The patent introduces a local node as an intermediary component that mediates between the existing telephone network and the voice recognition authentication system. This local node handles the complex signal processing and authentication logic, allowing the existing telephone infrastructure to be used without major modifications while still achieving reliable voice-based user identification.
2Reliability
If additional interfaces are added to enable authentication functionality, then access control capability is improved, but vulnerability to wiretapping and fraud increases
Solution Approach 1:
The patent combines the authentication functionality with the existing telephone network infrastructure by utilizing the local node that is already present in the network. Instead of adding separate authentication interfaces, the authentication signals are merged into the existing telephone signal paths, reducing the attack surface and vulnerability to wiretapping while maintaining access control capability.
3Reliability
If voice samples are transmitted over the telephone network for authentication, then user verification is enabled, but signal interception risk increases
Solution Approach 1:
The local node serves as a trusted intermediary that receives voice samples from the telephone network, performs authentication processing in a secure environment, and returns authentication results. This intermediary architecture allows user verification to be performed reliably while minimizing the exposure of voice samples to potential interception during transmission.
4Reliability
If proprietary authentication systems are deployed, then authentication functionality is achieved, but adaptability to different manufacturers' systems decreases
Solution Approach 1:
The patent designs the local node with universal interfaces and standardized protocols that can work with authentication systems from different manufacturers. The local node acts as a universal adapter that can handle various authentication implementations while maintaining compatibility with the existing telephone network infrastructure, thereby improving adaptability without sacrificing authentication functionality.
Data Source
AI summary
The invention relates to a method for authorizing a telephone transaction and in particular an access to a database through a user in a telecommunication network, said telecommunication network comprising a user interface, an access control for the database and an authentification device, which are connected with each other over a local node in the telecommunication network, as well as to a corresponding local node.The invention is characterized in that the comparative result is output by the authentification device over the local node to the access control and the result of the comparison is communicated by the access control to the user over the local node, signals sent by the authentification device being masked.