Protocol and system for tee-based authenticating and editing of mobile-device captured visual and audio media

A system, comprising:

• one or more hardware processors;
• and
• one or more non-transitory machine-readable storage media encoded with instructions that, when executed by the one or more hardware processors, cause the system to perform operations for media asset capture and processing, the operations comprising:
• capturing a media asset in an electronic device;
• storing frame buffer objects of the captured media asset in a Trusted Execution Environment (TEE) of the electronic device;
• subsequent to storing the frame buffer objects, processing the media asset in a Rich Execution Environment (REE) of the electronic device in a first state with read-only (RO) access to the stored frame buffer objects and a second state with read-write (RW) access to the stored frame buffer objects;
• controlling, in the TEE, the RO and RW access by the REE to the stored frame buffer objects during processing of the media asset;
• and
• subsequent to processing the media asset, authenticating the processed media asset in the TEE.

One or more non-transitory machine-readable storage media encoded with instructions that, when executed by one or more hardware processors, cause a system to perform operations for media asset capture and processing, the operations comprising:

• capturing a media asset in an electronic device;
• storing frame buffer objects of the captured media asset in a Trusted Execution Environment (TEE) of the electronic device;
• subsequent to storing the frame buffer objects, processing the media asset in a Rich Execution Environment (REE) of the electronic device in a first state with read-only (RO) access to the stored frame buffer objects and a second state with read-write (RW) access to the stored frame buffer objects;
• controlling, in the TEE, the RO and RW access by the REE to the stored frame buffer objects during processing of the media asset;
• and
• subsequent to processing the media asset, authenticating the processed media asset in the TEE.