Multimedia Remote Control Biometric Security via SIM Extraction
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Solution Overview
Problem
Existing multimedia remote controls face challenges in achieving high security, low hardware complexity, and low power consumption while ensuring secure data transmission, particularly due to the need for complex processors and potential signal interception by unauthorized devices.
Innovation Solution
The remote control transmits biometric data to the device for evaluation, using a SIM card for additional security, with data encryption and asymmetric cryptography to ensure secure communication, allowing for a simpler and less power-intensive processor in the remote control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If biometric data is evaluated in the remote control device, then identification accuracy is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent extracts the biometric data evaluation function from the remote control device and relocates it to the multimedia device. The remote control only captures and transmits biometric data, while the multimedia device performs the complex evaluation processing, thereby reducing the remote control's hardware complexity and power consumption requirements.
Solution Approach 2:
The patent introduces encrypted data transmission as an intermediary mechanism between the remote control and multimedia device. Biometric data is encrypted during transmission to prevent unauthorized access, while the evaluation process occurs in the multimedia device, balancing security requirements with reduced remote control complexity.
2Reliability
If complex encryption is implemented in the remote control, then transmission security is improved, but power consumption increases
Solution Approach 1:
The patent extracts the heavy cryptographic processing from the remote control and performs it in the multimedia device instead. The remote control only handles basic encryption/decryption operations, while the multimedia device manages the complex key management and cryptographic protocols, significantly reducing power consumption in the battery-powered remote control.
3Reliability
If SIM card verification is added, then access security is improved, but device complexity increases
Solution Approach 1:
The patent leverages the existing SIM card infrastructure, which is already a universal component in mobile devices. By utilizing the SIM card's built-in security features and identification capabilities, the system achieves enhanced access security without adding dedicated new hardware components, thus avoiding increased device complexity.
Data Source
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AI summary
The invention relates to a multimedia device comprising a remote control system for wirelessly controlling a multimedia appliance. In order to establish a connection between a remote control system and a multimedia appliance, the remote control system must identify itself to the multimedia appliance, by means of a hardware device, especially a SIM card. The individual user must also identify him/herself to the multimedia appliance, by means of a hardware device for detecting biometric data. The respective identification data is encoded by means of asymmetrical cryptography. During the initialisation process between said two appliances, data encoded for the identification of the remote control system and each person is transmitted to the multimedia appliance and stored therein in an encoded manner. In order to establish a connection after the initialisation, the corresponding data is asymmetrically encoded, in turn, from the remote control system to the multimedia appliance using another code, and is decoded in the multimedia appliance. The corresponding data stored in the multimedia appliance is also decoded and compared with the received decoded data.