Clipboard Data Transfer via Stylus and Secure Keys
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Solution Overview
Problem
Current information handling systems lack efficient methods for transferring clipboard data between display screens, particularly across different devices, which hinders seamless content sharing and management.
Innovation Solution
An information handling system with a touch-sensitive display capable of detecting a stylus, where a processor copies content to memory, stores identifier and public keys, and establishes a secure communication link between devices using these keys to transfer clipboard data via a stylus, enabling secure and efficient data sharing between display screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If clipboard data is transferred between display screens using conventional methods, then data transfer functionality is provided, but the process is inefficient and lacks security across different devices
Solution Approach 1:
The system performs preliminary actions by storing identifier keys and public keys in memory before the actual clipboard data transfer occurs. This pre-establishment of authentication credentials enables rapid, secure transfers without compromising security protocols, thus improving productivity while maintaining reliability.
Solution Approach 2:
The patent introduces cryptographic keys (identifier key and public key) as intermediaries to facilitate secure clipboard data transfer between devices. These keys act as mediators that enable authenticated communication without requiring direct trust between devices, resolving the contradiction between efficient transfer and security.
2Reliability
If a secure communication link is established between devices, then data transfer security is improved, but the process becomes more complex
Solution Approach 1:
The system implements a universal key management approach where identifier keys and public keys serve multiple functions: device identification, authentication, and secure communication establishment. This multi-functionality reduces the need for separate complex security mechanisms, maintaining reliability while managing complexity.
Solution Approach 2:
The patent uses public key cryptography where public keys are copied and exchanged between devices to establish secure communication. This copying mechanism simplifies the security setup process compared to more complex cryptographic handshakes, as devices can independently generate and share public keys without requiring complex coordination protocols.
3Ease of operation
If clipboard data is copied to memory for transfer, then data management capability is improved, but memory resources are consumed
Solution Approach 1:
The system extracts only the essential authentication elements (identifier key and public key) to memory for clipboard transfer operations, rather than storing entire security protocols or large amounts of data. This selective extraction provides ease of operation for data management while minimizing memory consumption.
Data Source
AI summary
An information handling system includes a first display device having a touch-sensitive surface capable of detecting a stylus. The stylus may communicate with the first display device via the touch-sensitive surface. A processor copies content from the touch-sensitive surface to a first memory of the first display device, and stores an identifier key and a public key that are both associated with the first display device to a second memory. The processor may also establish a secure communication link between the first display device and a second display device using the identifier key and the public key, and paste the content from the first memory to the second display device using the stylus.