PKI Security Ecosystem for IoT Device Authentication
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Solution Overview
Problem
Existing security technologies for IoT devices are inadequate in providing robust access control and identity management, especially in collaborative models where multiple devices interact, leading to increased risks of unauthorized access and security breaches.
Innovation Solution
The implementation of a Public Key Infrastructure (PKI) based security ecosystem that includes unique ID creation, digital certificate issuance, secure communication line establishment, and PKI-Enforced Whitelisting to ensure only authorized devices communicate, using Inviter-Invitee Protocol and Attribute Authorities for enhanced security and authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional security technologies are used for IoT devices, then device simplicity and ease of operation are maintained, but security reliability and access control robustness are inadequate
Solution Approach 1:
The patent introduces a Public Key Infrastructure (PKI) system as an intermediary layer between IoT devices and the network. This PKI system includes certificate authorities, registration authorities, and security modules that mediate authentication and encryption processes. By placing this intermediary security layer, the patent achieves robust access control and identity management without requiring complex security implementations within each individual IoT device, thus resolving the contradiction between security reliability and device complexity.
2Reliability
If PKI-based security ecosystem is implemented, then access control and identity management are improved, but computational overhead and energy consumption increase
Solution Approach 1:
The patent implements preliminary action by pre-provisioning IoT devices with security modules, unique identifiers, and cryptographic key pairs during the manufacturing process. The PKI infrastructure pre-establishes certificate authorities and registration authorities before devices are deployed. This preliminary setup eliminates the need for complex runtime security computations on resource-constrained devices, reducing their energy consumption while maintaining robust access control through pre-computed cryptographic credentials.
3Adaptability or versatility
If multiple devices interact in collaborative models, then system functionality and versatility are enhanced, but security risks and unauthorized access possibilities increase
Solution Approach 1:
The patent implements a feedback mechanism through the PKI system where each device in the collaborative network continuously authenticates others using digital certificates and cryptographic verification. The registration authority provides feedback by issuing and revoking certificates based on device trustworthiness. This continuous cryptographic feedback loop enables multiple devices to interact collaboratively while maintaining security, as each device can verify the identity and authorization of others before engaging in collaborative operations, thus preventing unauthorized access despite enhanced system versatility.
Data Source
AI summary
Method for authenticating a first and a second electronic devices associated through a communication line includes: creating a unique ID, by a third electronic device; transmitting the unique ID to the first electronic device; signing the transmitted unique ID by the first electronic device; transmitting the signed unique ID to the second electronic device, by the first electronic device; signing the transmitted signed unique ID by the second electronic device; transmitting the unique ID signed by the first and second electronic devices to the third electronic device; verifying and accepting the unique ID signed by the first device and the second device, by the third device; issuing a certificate for a secure communication line between the first electronic device and the second electronic device; and transmitting the certificate to the first electronic device and the second electronic device.