Order exchange key in data encryption

Abstract

This Paper presents a new data encryption conception and algorithm. Generally the method of encryption is fixed and different key gets different encryption result. In this paper, one general data encryption key DK is used, and from the DK key we can get another key MK which is used to change the encryption method. By new method(DMK), the new algorithm obtain many useful properties, it operates quickly and easy perform by hardware, it has high encryption intensity and just like the DES when one bit in the data charged the encryption code will have many bits charged, it can make digital seal and digital signature, the length of data block can be changed, the encryption way can be changed easily and it not only can be used for big organization such as government, bank, but also for individual. As pages limited, the paper gives part research result which shows the new method effective. © 2012 Springer-Verlag GmbH.