Caller ID Spoofing Detection via Authentication Data Comparison
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Solution Overview
Problem
Current authentication systems for network caller ID and malicious phone calls are ineffective in preventing caller ID spoofing and fraudulent calls due to invalid filtering and undue blocking, leading to increased customer complaints, revenue loss, and public inconvenience, while existing solutions require additional devices and channels, increasing costs and compatibility issues.
Innovation Solution
A screening authentication system using a server with a login registration interface, data searching and comparing program, and labeling indication program that verifies caller ID authenticity by comparing generated and received authentication data, preventing spoofing without requiring extra devices or channels, and utilizing Distributed Data Acquisition and Control System (DACS) for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing authenticating and blocking mechanisms are applied to incoming telephone calls, then fraudulent calls can be blocked, but legitimate calls may be wrongly blocked due to incomplete caller telephone number information
Solution Approach 1:
The system performs preliminary authentication by generating authentication data from available caller ID information before the call is blocked. This preliminary action allows the system to make informed blocking decisions based on authentication results rather than simply blocking all calls with incomplete caller ID information, thereby reducing false positives while maintaining fraud prevention.
Solution Approach 2:
The patent introduces an intermediary authentication mechanism that mediates between the caller ID information and the blocking decision. Instead of directly blocking calls with incomplete caller ID, the system uses authentication data generation and verification as an intermediary step to determine whether to block the call, thus protecting legitimate calls while maintaining security.
2Adaptability or versatility
If caller ID spoofing is allowed to evade blocking mechanisms, then fraudsters can masquerade as trustworthy entities, but authentication reliability deteriorates
Solution Approach 1:
The system implements feedback by generating authentication data from caller ID information and comparing it against expected authentication data. This feedback mechanism allows the system to detect caller ID spoofing attempts by identifying discrepancies between the presented caller ID and the authenticated identity, thereby maintaining authentication reliability even when fraudsters attempt to evade blocking mechanisms.
Solution Approach 2:
The patent changes the parameter being authenticated from simple caller ID matching to authentication data generation and verification. By transforming the authentication process into a parameter-based verification system, the patent makes it more difficult for fraudsters to evade detection through simple caller ID tampering, as the authentication data must match specific generated values.
3Object-affected harmful factors
If comprehensive blocking of doubtful telephone calls is implemented, then telephone fraud can be prevented, but communication efficiency decreases due to undue blocking
Solution Approach 1:
The system performs preliminary authentication data generation and verification before blocking decisions are made. This preliminary action allows the system to distinguish between fraudulent and legitimate calls more accurately, preventing undue blocking of legitimate communications while maintaining comprehensive fraud prevention, thus preserving communication efficiency.
Solution Approach 2:
The patent introduces authentication data verification as an intermediary mechanism between caller ID information and blocking decisions. This intermediary step provides more nuanced filtering that prevents fraud while allowing legitimate calls with incomplete or varied caller ID information to through, thereby maintaining communication efficiency while ensuring security.
Data Source
AI summary
An authentication method and system for screening network caller ID spoofs and malicious phone calls includes a screening authentication system with a server that includes a login register interface, a data accessing interface, a data searching and comparing program, a data searching database, a labeling indication program, a registry coding module and a data searching coding module. Authentication data is generated by the registry coding module from a caller telephone number and caller login identification data input during registration. Corresponding authentication data contained in a network calling signal from a caller sending device is generated by a data searching coding module. A data searching and comparing program compares the authentication data and, if any discrepancy is found, a labeling indication program sends a “failed authentication” signal to the target network receiving callee so that a fraudulent call is detected.