Video Call Authentication via Embedded Image and Audio Signals

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Solution Overview

Problem

Existing video call systems are vulnerable to manipulation of image and audio data, leading to security risks such as fishing crimes, and existing authentication methods are ineffective against data modulation during streaming and incur high traffic costs.

Innovation Solution

An electronic device generates and transmits authentication information using steganography and non-audible frequency insertion methods, verifying data integrity by comparing authentication information, and dynamically changing algorithms and information based on events to thwart hacking attempts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If direct photographing of clock or object is used for authentication, then authentication simplicity is improved, but security is worsened due to inability to prevent original screen manipulation

Engineering Contradiction:
Improveauthentication simplicityVSAvoidsecurity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces an intermediary authentication mechanism where authentication information is embedded within the video stream itself rather than relying on external visual verification. The authentication information acts as a mediator between the video data and the authentication process, allowing verification without direct manipulation of the original screen.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The authentication information is nested within the video stream data structure. By embedding authentication information inside the video stream itself, the system creates a nested structure where the authentication mechanism is contained within the data being transmitted, preventing external manipulation while maintaining integration.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If common authentication keys are distributed and exchanged between users, then authentication capability is improved, but traffic increases and modulation of streaming feed cannot be counteracted

Engineering Contradiction:
Improveauthentication capabilityVSAvoidtraffic
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent merges the authentication mechanism with the video stream transmission itself. By combining authentication information exchange with the existing video data transmission, the system eliminates separate authentication traffic and integrates security verification into the primary data flow, reducing overall traffic while maintaining authentication capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The authentication mechanism serves itself by embedding verification information directly into the video stream. The system performs authentication verification as part of the normal streaming process without requiring additional external authentication traffic, making the system self-sufficient in handling both data transmission and security verification.

Inventive Principle:
Principle #25Self-service

3Reliability

If common authentication keys are distributed and exchanged, then authentication capability is improved, but traffic increases

Engineering Contradiction:
Improveauthentication capabilityVSAvoidtraffic
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent merges the authentication mechanism with the video stream transmission itself. By combining authentication information exchange with the existing video data transmission, the system eliminates separate authentication traffic and integrates security verification into the primary data flow, reducing overall traffic while maintaining authentication capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The video stream transmission serves multiple functions simultaneously: it transmits video data and carries authentication information. This multi-functionality allows the same data transmission channel to handle both communication and authentication tasks, eliminating the need for separate authentication traffic channels.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12506745B2Electronic device and control method therefor
Publication Date: 2025.12.23 SAMSUNG ELECTRONICS CO LTD
  • US12506745B2 patent drawing
  • US12506745B2 patent drawing
  • US12506745B2 patent drawing

AI summary

An electronic device is provided. The electronic device includes a memory, a communication module, and a processor which generates first authentication information to store the generated first authentication information in the memory and transmits a video call request and the first authentication information to an external device through the communication module, if a user input for performing a video call with the external device is received, and which generates first image data including second authentication information and transmits the generated first image data to the external device through the communication module, if the second authentication information is received from the external device through the communication module.