A Survey Cloud Storage Service Based on Multi Part of a Data Security Mechanism

We propose a two-factor data security protection system with issue revocability for Cloud storage System. Our frame supports a sender to send a matted message to a receiver through a Cloud storage server. The sender as it were has to know the character of the receiver but no other data, (for example, its open key or its confirmation). The receiver needs to have two things to decode the encryption text. The primary thing is his/her new reach position left in the system. The second thing is an unexpected specific security gadget which associates with the system. It is difficult to decode the encryption text without either section. All the more imperatively, once the security gadget is stolen or lost, this device is excluded. It can't be utilized to decode any encryption text. This should be possible by the cloud server which will quickly implement a few designs to change the current encryption text to be un-decrypt able by this gadget. This technique is totally direct to the sender. Besides, the cloud server can't decode any encryption text whenever. The security and making analysis show that our system isn't just secure yet moreover down to useful.