Persona Device Certificate Management via Hardware Root of Trust
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Solution Overview
Problem
Current technologies lack an effective method for extending trust between computing devices based on user personas and device identities, which is crucial for secure interactions and access control in various environments such as corporate settings and IoT systems.
Innovation Solution
A persona-device certificate management system that utilizes hardware-based root of trust (RoT) features to generate and manage digital certificates by combining user persona information with device keys, enabling secure authentication and authorization across devices and systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hardware-based root of trust features are implemented in dedicated hardware modules, then security protection from attacks is improved, but device complexity increases
Solution Approach 1:
The patent introduces a persona application as an intermediary layer that manages the interaction between the user persona and the hardware root of trust. This mediator handles the complex operations of generating persona keys, obtaining device keys, and managing certificates, thereby protecting the underlying hardware complexity while providing simplified secure access to users and applications.
2Adaptability or versatility
If digital certificates are generated by combining user persona information with device keys, then trust extension between devices is improved, but system complexity increases
Solution Approach 1:
The patent segments the trust establishment process into distinct components: persona information collection, persona key generation, device key acquisition, and certificate generation. Each component is handled by specific system elements (persona application, key generation module, certificate authority), allowing the complex trust extension functionality to be managed through modular, independent operations rather than a monolithic system.
Solution Approach 2:
A certificate authority acts as an intermediary that facilitates the creation and management of digital certificates. This mediator receives the combined persona and device key information, generates the certificate, and manages its distribution and validation, thereby simplifying the trust extension process for end devices while centralizing the complexity of certificate management.
3Reliability
If biometric data is captured and stored for persona authentication, then authentication security is improved, but data security risks increase
Solution Approach 1:
The patent extracts the biometric data processing and storage operations from the general system and confines them within the secure boundaries of the persona application and hardware root of trust. By isolating sensitive biometric operations in dedicated secure modules, the system minimizes the attack surface and reduces data security risks while maintaining strong authentication capabilities.
Data Source
AI summary
A user device implements a certificate authority for issuing digital certificates that extend to other computing devices a level of trust to a particular user paired with the user device. The user device may obtain user persona information, generate a user key, and combine the user key with a device key for the generation of a digital certificate. The computing device may further transmit the digital certificate to a certificate management system, which manages interactions between other computing devices and the user device or authorizes operation of other computing devices by the particular user based on the digital certificate.