Examples described herein relate to a system that includes a central processing unit; a trusted execution environment (TEE); and a graphics processing system. In some examples, the central processing unit is to process homomorphically encrypted video game object data. In some examples, the TEE is to transpose the processed homomorphically encrypted object data to a second encryption format. In some examples, the graphics processing system is to perform a graphics processing pipeline operation on the object data in the second encryption format and provide rendered image data of the video game to a buffer. In some examples, the TEE is to receive homomorphic decryption keys and transpose the processed homomorphically encrypted object data to a second encryption format based on the homomorphic decryption keys. In some examples, the system is to inform a gaming server of a change to object data received from the gaming server to identify cheating.