The statistical analysis on S Box of data encryption standard(DES) has been conducted in this paper,It is found that the sum of the DES eight sub S Box output obeys the normal distribution with parameters (60,170).
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- 對數據加密標準 (DataEncryptionStandard ,DES)中所涉及到的S 盒進(jìn)行了統計分析后發(fā)現 ,DES中的八個(gè)S 盒的輸出之和服從參數為 ( 60 ,170 )的正態(tài)分布 ,從而發(fā)現DES在安全方面存在隱患