Abstract: Today we are creating huge amount of data, due to high Volume and Velocity of data , created data is stored in Cloud environment for availability and security reasons the number of users in cloud computing are increasing enormously due to its advantage of providing flexible storage requirement. it is an effective option to store big data in the cloud Attribute-Based Encryption (ABE) is a capable technique to ensure the end-to-end security of big data in the cloud. Eventhough, framing of business policy and its updation has always been a challenging issue when ABE is used to construct access control schemes. A trivial implementation is to let data owners retrieve the data and re-encrypt it under the new access policy, and then send it back to the cloud. This method, however, incurs a high communication overhead and heavy computation burden on data owners.

Keywords: Security, Correctness, Competence. Attribute Based Encryption (ABE), Policy Updating, Big Data, Cloud Computing.