Abstract: Cloud computing is considered to be one of the burning topic nowadays. Some of its excellent features attracts the confidence of the users but at the same time some of its uncertainties results in lack of faith of user. This survey paper gives a brief review of implicit security techniques, used in cloud computing. Traditionally explicit techniques are used in cloud computing but storing the data implicitly may provide more secure and balanced storage of data.

Keywords: Cloud Computing, Explicit Security, Implicit Security, OTP