📌 Poster presentation at SOSP 2025

Guojun Wu (M1) from the Shinagawa Laboratory presented a poster at the 30th ACM Symposium on Operating Systems Principles (SOSP 2025), held in Seoul, South Korea, in October 2025.

This research proposes a new trusted execution environment (TEE) architecture for confidential computing in cloud environments, called Confidential Process. Confidential Process aims to address the large Trusted Computing Base (TCB) problem of existing CVMs while maintaining compatibility with existing operating systems and applications.

By constructing TEEs at the application level and securely forwarding system calls, it allows unmodified applications to run while keeping the operating system outside the trust boundary. The prototype was implemented and evaluated on AMD SEV-SNP, revealing that data copying between encrypted memory regions is a major performance bottleneck in the initial results.