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Multiple and Multiphase Encryption: An Approach in Modern Cryptography
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The demand of secured data communication is increased exponentially due to various security attacks over the wireless network. But, the multiple encryption techniques of present time cannot be sufficient for these demands. So, the new encryption techniques as multiple and multi-phase encryption are proposed for this purpose. The concept of multiple encryption can be described as a technique to provide multilayer and multilevel security over unreliable wireless network. This technique can be understood through a real life example, where we are keeping our precious item within a box and this box is kept in locker. Now, we lock the room in which this locker is provided. Finally, we lock the house where this room is available. Here, we are protecting our precious item through multilayer and multi-level security. If anyone wants to achieve this precious item he has to cross all boundaries. First he has to unlock the house, then unlock the room, then unlock the locker and finally open the box to get the precious item. In the same manner, lots of time and efforts are required to achieve the original message if it is encrypted by multiple encryption.
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