Encrypted NVMe Telemetry Data Transmission
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Solution Overview
Problem
Storage systems face challenges in securely sharing telemetry data among multiple parties, as existing security measures may not adequately protect proprietary configuration or usage data, leading to potential exposure of sensitive information.
Innovation Solution
A system employing multi-layer encryption for telemetry data, where a first encryption key is encrypted using a second key, and both are included in a telemetry message, allowing authorized clients to decrypt the keys and data using public-private key pairs, ensuring secure access and protection of sensitive information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If telemetry data is transmitted in plaintext or with basic encryption, then data accessibility and ease of operation are improved, but security and data protection are worsened
Solution Approach 1:
The encryption system is segmented into multiple layers: an outer encryption layer using a first encryption key and an inner encryption layer using a second encryption key. This multi-layer segmentation allows authorized parties to systematically decrypt data while maintaining strong security protection against unauthorized access.
Solution Approach 2:
The patent introduces a temporal dimension to encryption key usage by implementing key rotation mechanisms where encryption keys are changed over time. This adds a time-based dimension to the encryption system, enhancing security while maintaining data accessibility for authorized parties with current keys.
2Reliability
If multi-layer encryption is implemented for telemetry data, then data security and protection are improved, but system complexity and device complexity are worsened
Solution Approach 1:
The encryption system uses a nested structure where the first encryption key encrypts the telemetry data, and the second encryption key encrypts the first encryption key. This nested doll approach allows layered security while maintaining a manageable system structure where each layer builds upon the previous one.
Solution Approach 2:
The patent introduces key management intermediaries that facilitate the exchange and management of encryption keys between storage devices and client systems. These intermediaries simplify the complex key distribution and management processes, reducing overall system complexity while maintaining multi-layer encryption security.
3Reliability
If encryption keys are rotated frequently for enhanced security, then data protection is improved, but processing time and loss of time are worsened
Solution Approach 1:
Encryption keys are generated and prepared in advance before they are needed for data encryption. This preliminary action allows the system to have ready-to-use encryption keys, reducing the time required for key rotation and generation while maintaining frequent key changes for enhanced security.
Solution Approach 2:
The system implements periodic key rotation at predetermined intervals or after a specified number of encryption operations. This periodic approach balances security requirements with processing efficiency, ensuring keys are rotated frequently enough to maintain security while avoiding excessive rotation that would increase processing time.
Data Source
AI summary
Systems and methods for encrypted storage device telemetry data are described. Storage device telemetry data may be collected for a telemetry message, such as a non-volatile memory express (NVMe) telemetry command, and encrypted using a first encryption key. The first encryption key may be encrypted using one or multiple second encryption keys and the encrypted first encryption key may be added to the telemetry message. A client system may receive the telemetry message, decrypt the encrypted first encryption key, and use the first encryption key to decrypt the encrypted storage device telemetry data.