Design of hybrid cryptosystem for cloud system

21st century is often called the Information Century. Information technology is being used in all areas of life from medicine to astronomy. The list of developments and advances happened in those areas thanks to information technology penetration is endless. As the world become digitized more and more and information technology becomes ubiquitous, creating electronic and digital phenomena such as digital economy, e-democracy, e-government, e-business, e-bank, e-health system, e-education, even e-agriculture, traditional illegal activities are penetrating into the virtual world as well. As a result, an entirely new type of criminal activities has emerged threatening the security and integrity of the system, network, and information.