Virtual Terminal Encryption via Secure Element Rewrapping
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Solution Overview
Problem
Existing data transmission methods in electronic devices lack robust encryption and decryption mechanisms to secure sensitive data, particularly in multipurpose devices like smartphones and tablets, making them vulnerable to data exposure and unauthorized access.
Innovation Solution
A virtual terminal system integrated into multipurpose devices, utilizing a secure element and encryption keys to encrypt and decrypt data through a secure element, terminal backend, and rewrap backend, ensuring data security and integrity throughout the transmission process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional data transmission methods are used in multipurpose devices, then data transfer simplicity is maintained, but data security and encryption protection are insufficient
Solution Approach 1:
A virtual terminal acts as an intermediary component between the secure element and the external environment. It provides a standardized interface that enables secure data transmission without requiring the main processor or application logic to directly handle sensitive encryption operations, thus improving security while maintaining system simplicity
Solution Approach 2:
The encryption and decryption functions are extracted from the general-purpose processor and placed into a dedicated secure element. This separation isolates sensitive cryptographic operations from the main system, enhancing security while allowing the rest of the device to operate independently without complexity increases
2Reliability
If a secure element with encryption mechanisms is implemented, then data confidentiality is improved, but transmission process complexity increases
Solution Approach 1:
The secure element performs self-service by autonomously handling encryption and decryption operations using its embedded cryptographic modules. The virtual terminal facilitates this by automatically managing key storage and cryptographic processing without requiring external intervention or complex coordination with other system components
Solution Approach 2:
The virtual terminal provides a universal interface that can handle multiple types of secure communications and data transmissions through a single standardized mechanism. This multi-functionality allows the secure element to serve various purposes (payment, authentication, data protection) without increasing overall system complexity
Data Source
AI summary
Techniques for using a virtual terminal on a device to process a data transfer are described herein. These techniques provide the establishing of a virtual terminal for touchless transfer of data, encryption of the data, and rewrapping the data in a way to protect the personal information of a user on the device and in transfer, while still providing the information to a server for further processing.