Secure Payment Processor Segmentation for Multitasking
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Solution Overview
Problem
Existing secure payment methods on electronic devices limit access to input and output components, restricting users' ability to multitask and efficiently use their devices during the payment process.
Innovation Solution
Implementing tablet mode switching by entering a payment mode associated with a secure processor, suspending primary processor access to components, determining connection to a docking hub, permitting access to peripheral devices, and receiving user input through a pair connection, allowing secure payment processing while maintaining other device functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access to input and output components is limited during secure payment process, then security is improved, but user productivity and multitasking ability deteriorate
Solution Approach 1:
The system divides the electronic device into two separate processing domains: a secure processor for payment operations and a primary processor for general device functions. This segmentation allows each processor to operate independently with appropriate access rights, enabling secure payments while maintaining user productivity through concurrent operations on different processors.
Solution Approach 2:
The patent introduces a secure processor as an intermediary between the payment application and the input/output components. This intermediary handles all secure payment operations separately from the primary processor, allowing the primary processor to continue accessing I/O components for non-payment tasks, thus resolving the contradiction between security and productivity.
2Reliability
If the operating system is prevented from accessing touch screen during payment, then payment security is improved, but device usability and efficiency deteriorate
Solution Approach 1:
The system segments access rights to the touch screen by processor type. The secure processor receives touch inputs exclusively during payment operations, while the primary processor retains access for non-payment functions. This segmentation maintains both payment security and overall device usability by allowing parallel access from different processors for different purposes.
Solution Approach 2:
The system dynamically adjusts processor access rights based on the operational state. When a payment operation is active, the secure processor is granted exclusive access to the touch screen. When payment operations are inactive, the primary processor regains access. This dynamic adjustment ensures security during payments while maintaining ease of operation during normal device usage.
Data Source
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AI summary
Disclosed herein are system, method, and device embodiments for tablet mode switching. In an embodiment, an electronic device enters a payment mode associated with a secure processor of the electronic device and suspends access by a primary processor of the electronic device to a component of the electronic device. Further, the electronic device determines that it is connected to a docking hub, permits the primary processor to access a peripheral device connected to the docking hub via a pair connection, and receives, by the primary processor, user input from the peripheral device connected to the docking hub via the pair connection.