Abstract: Removing protections on a session-key protected design include receiving a double encrypted vendor private key and an encrypted session key. The double encrypted vendor private key is decrypted into a single encrypted vendor-private key using a user private key, and the single encrypted vendor-private key is decrypted into a vendor private key using a vendor pass phrase. The encrypted session key is decrypted into a session key using the vendor private key, and the session-key protected design is decrypted into a plain design using the session key.

Abstract: In some embodiments, a system comprises game state information, a first user device, a second user device, and a processing server. The first and second user devices may include a first and second user interface modules configured to receive first and second user selections, respectively, associated with gameplay of a multiplayer game. The processing server may include a communication module, a simulation module, and rendering module. The communication module may be configured to receive the first and second user selections. The simulation module may be configured to generate simulation results based on the game state information, game rules, and the first and second user selections. The rendering module may be configured to render a first video based on the simulation results and render a second video based on the simulation results, the first and second video to be displayed by the first and second user devices, respectively.