Linear Cryptanalysis of LOKI97
LOKI97的线性密码分析

In this paper, LOKI97 is analyzed using linear cryptanalysis. The results show that LOKI97 does not meet the needs of AES (advanced encryption standard). Using algorithm 1 of linear cryptanalysis, the authors can get the 92 -bit subkey with 2 50 known plaintexts and the success rate is 0.977; using algorithm 2 of linear cryptanalysis, it is possible to break LOKI97 with 2 45 known plaintexts and the success rate is 0.967.