A Trust Usage Control Approach for Media Player Based on Intel SGX

With the rise of music streaming, users can easily access paid audio content on their devices. At the same time, music publishers require audio platforms to implement digital rights management (DRM) on devices to prevent illegal distribution of copyrighted audio. However, existing DRM schemes rely mainly on obscurity, which experienced reverse engineers can defeat. We propose a usage control scheme using trusted computing to address this problem. As an extension of DRM, usage control provides more data-related protection. By leveraging SGX to protect keys, we ensure encrypted audio files stored locally are not vulnerable to reverse decryption, effectively preventing pirated software from supplying pirated audio to users via APIs.