Abstract: This Mobile cloud computing (MCC) at its simplest, refers to an infrastructure where both the data storage and data processing happen outside of the mobile device. Mobile cloud applications move the computing power and data storage away from the mobile devices and into powerful and centralized computing platforms located in clouds, which are then accessed over the wireless connection based on a thin native client Mobile Cloud Computing usually consists of front-end users who possess mobile devices and back-end cloud servers During the period between uploading and downloading files (data), the privacy and integrity of files need to be guaranteed. Access control in clouds is gaining attention because it is Important that only authorized users have access to valid Service. Attribute-based access control (ABAC) in which users are given attributes, and the data has attached access policy. Only users with valid set of attributes, satisfying the access policy, can access the data. This research paper consists of the security of ABE and ABS Algorithm. Using ABE, the records are encrypted under some access policy and stored in the cloud. Users are given sets of attributes and corresponding keys. Only when the users have matching set of attributes, can they decrypt the information stored in the cloud. In ABS, users have a claim predicate associated with a message. The claim predicate helps to identify the user as an authorized one, without revealing its identity. Other users or the cloud can verify the user and the validity of the message stored. ABS can be combined with ABE to achieve authenticated access control without disclosing the identity of the user to the cloud. There are two type of authentication provided that is from trustee side in terms of token and KDC in terms of skey and pkey.

Keywords: Mobile Cloud Computing, MANET, Attribute based Encryption (ABE), Attribute Based Signature (ABS), Proposed Architecture.