Secure Input Intermediary for Encrypted Keystroke Isolation
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Solution Overview
Problem
Modern computing devices, such as smartphones and laptops, suffer from security vulnerabilities due to their complex multitasking operating systems, making them susceptible to zero-day exploits and data interception, especially during sensitive transactions.
Innovation Solution
A secure intermediary device is introduced that provides a secure communication channel between input devices and computing systems, using a single-tasking approach with end-to-end encryption and a firewall-like functionality to protect user inputs from interception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multitasking operating system is used to provide broad functionality, then device versatility is improved, but security vulnerabilities increase
Solution Approach 1:
The system is divided into two distinct segments: a secure single-tasking intermediary device that handles sensitive input operations, and a multitasking computing device that provides general functionality. The intermediary device acts as a isolated security enclave that segments critical security functions from the vulnerable multitasking environment, preventing system-wide compromises while maintaining broad device capabilities.
Solution Approach 2:
A secure intermediary device is introduced as a mediator between the user/input devices and the multitasking computing device. This intermediary establishes an encrypted communication channel and filters all input traffic, acting as a security gateway that allows the multitasking device to function broadly while the intermediary maintains strict security control over sensitive operations.
2Reliability
If encryption is implemented to protect data transmission, then security is improved, but processing overhead increases
Solution Approach 1:
Encryption keys and security protocols are established in advance through a key exchange mechanism before sensitive data transmission begins. The intermediary device pre-configures secure communication channels, so that during actual input operations, data can be transmitted through the encrypted channel without repeated key negotiation overhead, maintaining both security and processing efficiency.
Data Source
AI summary
A secure intermediary device is disclosed. The secure intermediary device provides a secure communication channel between an input device such as a keyboard or mouse and a computing device. The secure intermediary device may be integrated into the input device or external to the input device. The secure intermediary device may communicate with the computing device using a secure application implemented using the computing device, such as an internet browser extension. The secure intermediary device may include at least some components of a retro device. Techniques for building a platform that enables partners to develop or integrate applications with the secure intermediary device are also disclosed.