Wang Tian-qin
Abstract
This paper gives a model of one-group-one-cipher cryptosystem based on DES. By combining the block-cipher and stream-cipher, the security of the system is thus strengthened. At the same time, we apply the theorems in Number Theory to the algorithms to get better results.
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This paper gives a model of one-group-one-cipher cryptosystem based on DES. By combining the block-cipher and stream-cipher, the security of the system is thus strengthened. At the same time, we apply the theorems in Number Theory to the algorithms to get better results.
Key concepts: Stream cipher, Cryptosystem, Cipher, Transposition cipher, Group (periodic table), Computer science, Arithmetic, Block cipher