Replacement Device Voucher Authentication for Secure IHS Repair
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Solution Overview
Problem
Cyber attackers exploit vulnerabilities in information handling systems (IHSs) to steal data and cause security breaches, particularly through compromised devices and unencrypted data transfers, leading to supply chain security issues and non-compliance with industry standards.
Innovation Solution
A device authenticity validation system that involves generating a replacement part voucher using public and private keys to ensure the authenticity of replacement devices, encrypting attestation data, and validating it with the vendor's public key, ensuring only the to-be-replaced device can decrypt, thereby securing the integration of new devices into the IHS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If device replacement is allowed in IHS to maintain system functionality, then system adaptability is improved, but security risk increases due to potential malware installation on replacement devices
Solution Approach 1:
The system performs preliminary authentication and voucher generation before the replacement device is installed in the IHS. The vendor signature and encryption operations are executed in advance, ensuring the device is verified authentic before it can compromise system security.
Solution Approach 2:
A cryptographic voucher acts as an intermediary between the replacement device and the IHS security system. The voucher contains encrypted device identifiers and vendor signatures that mediate the trust relationship, allowing the IHS to verify device authenticity without directly trusting the replacement device itself.
2Reliability
If cryptographic authentication protocols are implemented to secure device replacement, then security is improved, but system complexity increases due to multiple signing and encryption operations
Solution Approach 1:
The authentication process is segmented into distinct cryptographic operations: device self-signing of attestation data, vendor signing of the attestation package, and IHS verification of the vendor signature. This segmentation allows each security function to be independently implemented and verified, managing complexity through modular design.
Solution Approach 2:
The system uses cryptographic copies (signatures) of device identifiers and attestation data to verify authenticity without requiring physical inspection or complex hardware verification. The vendor signature serves as a cryptographic copy that proves device legitimacy through mathematical verification.
Data Source
AI summary
According to embodiments of the present disclosure, systems and methods for validating the authenticity of devices used in information handling systems (IHSs) are provided. According to one embodiment, an IHS includes a replacement/repaired device to be configured in a computing system, and computer-executable instructions to receive a to-be-replaced public key of a to-be-replaced/repaired device configured in the computing system, sign, using a replacement/repaired device private key of the replacement/repaired device, attestation data of the replacement/repaired device, and sign, using a vendor private key of a vendor of the replacement/repaired device, the signed attestation data and a replacement/repaired device public key of the replacement/repaired device. The instructions then encrypt, using the received to-be-replaced public key, the signed attestation data and the replacement/repaired device public key, and sign, using a vendor private key, the encrypted data to save into a new voucher that pairs the to-be-replaced/repaired device with the replacement/repaired device.