Electronic Device Pairing for Encrypted Authorized Control

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Solution Overview

Problem

Existing device control systems lack sufficient security measures, allowing unauthorized devices to indiscriminately control and access target devices, exposing user information and increasing operational load due to unrestricted access rights.

Innovation Solution

An electronic device generates authorization information to control target devices and encrypts data transmissions, limiting access rights to authorized controllers, thereby enhancing security and reducing operational loads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If access right control is actively restricted for each accessing device, then security of target device is improved, but operational load for establishing control increases

Engineering Contradiction:
ImprovesecurityVSAvoidoperational load
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-establishing security credentials and authorization mechanisms during the initial pairing phase. The target device and controlling device exchange and store cryptographic keys and authorization tokens in advance, so that subsequent access control decisions can be made quickly based on pre-verified credentials rather than performing complex security checks for each access request.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary approach by using standardized protocol layers (such as Bluetooth Low Energy pairing protocols and application-layer authentication frameworks) that mediate between the physical connection and the application-specific access control logic. These intermediary protocols handle the complexity of security verification, shielding the application layer from operational burden while maintaining strong security.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If short-range communication is used without long-range communication support, then device simplicity is maintained, but secure information sharing protocols are non-extant or underdeveloped

Engineering Contradiction:
Improvedevice simplicityVSAvoidsecure information sharing
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent segments the communication system into distinct layers: a standardized transport layer using established short-range protocols (Bluetooth, Wi-Fi Direct) and an application layer implementing custom secure information sharing protocols. This segmentation allows the device to maintain simplicity in the transport layer while incorporating robust security protocols in the application layer where needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses intermediary protocol layers that sit between the simple short-range communication hardware and the complex secure information sharing requirements. These intermediary layers provide standardized interfaces and security frameworks, allowing the device to leverage simple hardware while achieving sophisticated security through software-based protocol mediation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12388798B2Electronic device for performing encrypted communication, and operation method thereof
Publication Date: 2025.08.12 SAMSUNG ELECTRONICS CO LTD
  • US12388798B2 patent drawing
  • US12388798B2 patent drawing
  • US12388798B2 patent drawing

AI summary

Electronic devices are disclosed, including a first and second device. The first device includes a communication circuit, and a processor. The processor is configured to receive a first signal from the second device, identify a present mode of the second device, based on the received first signal, establish a communicative connection with the second device, based on identifying that the second device is operating in a first mode, in response to establishing the connection, generate first information for inclusion in a second signal to be periodically transmitted from the second device which transitions to a second mode, and second information for encrypting communications with the second device, and transmit the first information and the second information to the second device, and a second device different from the second device.