Mobile Cloud Computing Security Using Cryptographic Hash Function Algorithm

the use of cloud computing in the year 2008 is 42.8 million and it increased up to 998 million users in the year 2014. In other hand, the growth is not followed by increasing of user trust in cloud based data management especially in business sector. Some companies is not interested in adopting cloud computing mobile service due to risks of security and privacy. In cloud computing mobile service, some security gap and misuse of data ownership policy by service provider and other unconcern parties are still found. This thread is becoming an obstacle in adapting mobile cloud computing paradigm, the ease is not comparable to company's data misuse thread by other parties. So that, mobile cloud computing security system needs to construct which can lessen the risks of security and privacy. The use of complicated keys will complicate the parties which has no authority in accessing privately company's data. This security system will use hash function algorithm which is symmetric so that decrypting process in cloud system become more complicated and its expected that company's data will be better protected. With this system, the system mobile cloud computing users both corporate and individuals can manage business resources online quickly and safely from the risks of data leakage.