Gesture-Based Encryption Key Generation for Secure Device Communication
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Solution Overview
Problem
Establishing a secured communication channel between information handling systems is cumbersome due to the need for shared secrets like passwords or keys, which often leads to logistical difficulties and increased exposure to unauthorized access, especially in ad hoc information exchanges where common passwords or keys are not readily available.
Innovation Solution
A system and method that derive a key from attributes of a physical gesture performed on a touch device, allowing information handling systems to generate a common encryption key by repeating the gesture, thereby establishing a secure communication channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional password or key-based encryption is used to establish secure communication channels, then security is improved, but device complexity and ease of operation deteriorate due to the need for pre-shared secrets and key management
Solution Approach 1:
The system allows each information handling system to independently generate its own cryptographic keys and authentication credentials without requiring pre-shared secrets or external key distribution infrastructure. The gesture-based authentication enables the system to serve itself in establishing secure communication channels.
Solution Approach 2:
A physical gesture serves as an intermediary mechanism that bridges two information handling systems during authentication. The gesture captures biometric data that can be used to derive shared secrets without requiring direct key exchange or pre-shared credentials between the systems.
2Reliability
If pre-shared passwords or keys are used for secure communication, then security is improved, but loss of time increases due to the logistical difficulty of establishing and maintaining keys
Solution Approach 1:
The system performs preliminary key generation and authentication setup through the gesture capture process. By capturing biometric data during the authentication gesture, the system prepares cryptographic materials in advance of actual data transmission, eliminating the need for time-consuming key exchange protocols during critical communication windows.
3Reliability
If complex authentication protocols are implemented to prevent unauthorized access, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The system replaces complex mechanical or procedural authentication mechanisms (key distribution, password management, certificate exchange) with a gesture-based biometric authentication system. The physical gesture naturally captures multiple biometric attributes that can be used to derive cryptographic credentials without requiring users to manually manage complex authentication protocols.
Data Source
AI summary
A secured communication channel is established between two or more information handling systems by defining attributes for encrypting information with physical inputs made at touch devices of the information handling systems. Inputting the physical gesture at a touch device of each information handling system allows evaluation of one or more attributes at each information handling system so that the shared secret of the physical gesture form the basis for encrypted communications. The touch device includes touch screens or touch pads and the attributes include gesture speed, plural distinct gesture touch points, movement of touch points relative to each other, or other attributes that are determinable from physical gesture inputs at each information handling system.