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由于密码分析研究的进展及DES自身的弱点,原64比特的DES将不能作为数据加密的标准算法而长期存在。在原来工作的基础上,本文提出了256比特的分组密码方案。密码算法由基于混沌映射的数字滤波器构造。
Due to advances in cryptanalysis and DES’s own weaknesses, the original 64-bit DES will not exist as a standard algorithm for data encryption for a long time. Based on the original work, this paper proposes a 256-bit block cipher scheme. The cryptographic algorithm is constructed of digital filters based on chaotic maps.