DoTI: research on data-oriented TEE integration technology

Abstract

Collaborative platforms face the challenges of system and data security. Trusted execution environment(TEE) implements plaintext-based confidential computing through hardware isolation technology, ensuring the confidentiality and integrity of code and data. However, heterogeneous TEE technologies lead to security issues in data interoperability across TEE. To address the aforementioned issues, a TEE integration technology based on data manipulation language was proposed, combined with the cryptography method of attribute-based encryption to maintain the isolation of TEE. The experimental results show that the performance of the database migrated to TEE in DoTI is about 119.15% of the original database, and the network communication performance is better than existing solutions, which can meet the availability and security of data sharing in the collaborative platform.

Keywords

• collaborative platform
• trusted execution environment
• data manipulation language
• attribute-based encryption