Blockchain Workload Attestation for Tamper-Resistant Audit Trails
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Solution Overview
Problem
Cloud service providers face challenges in ensuring the secure and compliant relocation of workloads across geolocations, as existing record-keeping methods are vulnerable to tampering and lack robust audit trails for verifying compliance with agreed-upon security and location terms.
Innovation Solution
Implementing a blockchain-based attestation system that maintains a secure and tamper-resistant ledger of workload configurations, firmware updates, and geolocation changes, allowing users to verify that deployed workloads conform to specified configurations and location requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional record-keeping methods are used to track workload relocation, then the system complexity is low and ease of operation is maintained, but the reliability and tamper-resistance of the audit trail deteriorates
Solution Approach 1:
The patent introduces blockchain technology as an intermediary layer between the workload relocation process and the audit trail. The blockchain acts as a trusted mediator that records and verifies relocation events, preventing tampering while maintaining system reliability. This resolves the contradiction by providing cryptographic verification without requiring complete system redesign.
Solution Approach 2:
The patent creates cryptographic copies (hashes) of workload configuration data and stores them on the blockchain. These copies serve as immutable audit records that verify the original state without requiring storage of the entire original dataset. This approach maintains reliability while managing complexity through efficient data representation.
2Reliability
If blockchain-based attestation is implemented, then the tamper-resistance and trustworthiness of workload attestation is improved, but the device complexity and operational overhead increases
Solution Approach 1:
The patent performs preliminary actions by pre-registering workload configurations and their cryptographic hashes on the blockchain before actual relocation occurs. This preliminary registration creates a baseline for verification, simplifying subsequent attestation operations. The heavy computational work is done in advance, reducing real-time operational overhead.
Solution Approach 2:
The patent implements feedback mechanisms where the system continuously verifies workload state against the blockchain record and provides attestation information to users. This automated feedback loop maintains trustworthiness without requiring manual verification, reducing operational overhead through systematic self-verification.
Data Source
AI summary
Technologies for attesting a deployment of a workload using a blockchain includes a compute engine that receives a request from a remote device to validate one or more parameters of a managed node composed of one or more sleds. The compute engine retrieves a blockchain associated with the managed node. The blockchain includes one or more blocks, each block including information about the parameters of the managed node. The compute engine validates the blockchain and sends an indication that the blockchain is valid to the requesting device.