The cloud computing offers high quantifiability, confidentiality and therefore the simple accessibility of the knowledge over the net. tho' the traditional secret writing system provides security, the foremost involved issue is that the regular aspect channel attack for capturing ones sensitive and confidential image, audio and video. A malicious Virtual Machine (VM) besides a targeted VM will extract all info. Thus, this paper implements a double stage secret writing rule for the multimedia system content security exploitation random key generation approach. the primary stage encrypted multimedia system content into ciphertext -l employing a trigonal public key. The ciphertext-l is once more encrypted within the cloud exploitation a willy-nilly generated uneven non-public key. If anyone gets the ciphertext, he couldn't extract the secret writing key to recover the multimedia system contents. Low complexness and simple implementation create the planned rule wide applicable safeguard within the cloud computing.