Secure File Sharing Using Single To Multicloud

Abstract

In recent years use of Cloud computing in different mode like cloud storage, cloud hosting, cloud servers are increased in
industries and other organization as per requirements. While considering the power, stability and the security of cloud one
can’t ignore different threats to user’s data on cloud storage. Data access control is an effective way to ensure the data
security in the cloud. However, due to data outsourcing and untrusted cloud servers, the data access control becomes a
challenging issue in cloud storage systems. Existing access control schemes are no longer applicable to cloud storage
systems, because they either produce multiple encrypted copies of the same data or require a fully trusted cloud server.
Malicious user at cloud storage is become most difficult attacks to stop. In proposed system we are implementing the
concept of multiple server along with enhanced security using encryption techniques where rather storing complete file on
single cloud system will split the file in different chunks then encrypt and store it on different server and the meta data
required for decrypting and rearranging a file will be stored in metadata management server.