Survey on Enable Multi-Aspect Access Control System For Cloud Services

We propose a two-factor information security protection mechanism with issue revocability for cloud storage system. Our system permits a sender to send an encrypted message to a receiver through a cloud storage server. The sender only needs to know the identity of the receiver however no different data (such as its public key or its certificate). The receiver has to possess 2 things so as to decrypt the ciphertext. The primary factor is his/her secret key hold on within the pc. The second factor could be a distinctive personal security device that connects to the pc. It is impossible to decrypt the ciphertext without either piece. Additional significantly, once the safety device is stolen or lost, this device is revoked. It can’t be used to decrypt any ciphertext. This could be done by the cloud server which is able to immediately execute some algorithms to vary the existing ciphertext to be un-decryptable by this device. This method is totally clear to the sender. Furthermore, the cloud server cannot decrypt any ciphertext at any time. The security and efficiency analysis show that our system isn't only secure however additionally sensible.