Abstract: As Cloud computing is a new emergent technology despite having many beneficial factors, it faces many threats in various ways. To give the security with degrading the performance. In this project we propose an access control model featured with the efficient key update function in data outsourcing environment. Our access control is based on the combination of triple DES and role based access control (RBAC). The certificate is distributed in the form of token generated by the system and sent through the mail for secure transaction. In Our project a user’s key is incorporated into the token which will be used to decrypt the triple DES based on role based. This 3DES and RBAC together makes hybrid encryption and can be accessed using token generated key of that role user. This significantly reduces the overheads in updating and distributing keys of all users simultaneously compared to the existing 3DES based schemes. Decentralized Multi-Authority ABE (DMA), which is derived from 3DES that is resilient to these types of misbehaviour. Our system distinguishes between a data owner (DO) principal and attribute authorities (AAs): the DO owns the data but allows AAs to arbitrate access by providing attribute labels to users. The data is protected by policy encryption over these attributes. Finally our system is highly secured as hybrid encryption on 3DES and RBAC to secure the data and key to decrypt is token generated and shared in the distributed system. The decentralized system helps in the parallel computing the secure transaction between the users efficiently with high performance in cloud