Storage and management of large user's data has become a key challenge in today's world. Cloud computing solves this problem by providing a large capacity storage area to store many user's data simultaneously at the same place. It provides the user with the facility to access its data at anytime, anywhere by just connecting to the network. This feature attracts many individual and organization to store their large data over cloud. It relieves the owner from its storage and management task as well as achieves great flexibility with economical cost. The data which owner wants to store over cloud may also contains some confidential data or information which requires extra security concern before storing it over un-trusted network. Security becomes a basic requirement before migrating any confidential data over cloud. In this paper, we proposed a hybrid symmetric encryption approach to provide more security for owner's data other than any single symmetric encryption algorithm. This use of hybrid approach makes data more secure and protect it from any malicious activity attended by intruder. Brute force attack also becomes impossible after using this proposed approach. Use of symmetric encryption also increases the processing ability as it has fast processing speed and efficient than asymmetric approach.
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